/* ═══════════════════════════════════════════════════════
   TOKENS
═══════════════════════════════════════════════════════ */

:root {
  --teal:        #00C9A7;
  --teal-dk:     #00A08A;
  --teal-lt:     #00C9A715;
  --teal-bd:     #00C9A730;

  --font-sans:   'Plus Jakarta Sans', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;

  --sidebar-w:   260px;
  --toc-w:       220px;
  --header-h:    56px;
  --content-max: 760px;

  --transition:  180ms ease;
}

[data-theme="dark"] {
  --bg:          #0D1117;
  --bg-subtle:   #161B22;
  --bg-raised:   #1C2128;
  --surface:     #21262D;
  --border:      #30363D;
  --border-sub:  #21262D;
  --text:        #E6EDF3;
  --text-muted:  #8B949E;
  --text-faint:  #484F58;
  --text-link:   #00C9A7;
  --sidebar-bg:  #0D1117;
  --code-bg:     #161B22;
  --active-bg:   #00C9A712;
  --active-bd:   #00C9A740;
  --badge-bg:    #1C2128;

  /* Episode card surfaces */
  --card:           #161B22;
  --card2:          #1C2128;
  --ep-surface:     #0E2420;
  --ep-surface-2:   #1B3D35;
  --ep-surface-deep:#080F0E;
  --ep-surface-alt: #1A2E2A;
  --ep-surface-blue:#0D1A35;
  --ep-surface-purp:#1B1B30;
  --ep-text-on-surface: #88D8C8;
  --ep-text-bright: #D0F0EB;
  --ep-border-2:    #2D6B5A;
}

[data-theme="light"] {
  --bg:          #FFFFFF;
  --bg-subtle:   #F6F8FA;
  --bg-raised:   #FFFFFF;
  --surface:     #F6F8FA;
  --border:      #D0D7DE;
  --border-sub:  #EAEEF2;
  --text:        #1F2328;
  --text-muted:  #636C76;
  --text-faint:  #BFBFBF;
  --text-link:   #00A08A;
  --sidebar-bg:  #F6F8FA;
  --code-bg:     #EFF1F3;
  --active-bg:   #00C9A710;
  --active-bd:   #00C9A740;
  --badge-bg:    #EFF1F3;

  /* Episode card surfaces */
  --card:           #FFFFFF;
  --card2:          #F6F8FA;
  --ep-surface:     #EAF4F1;
  --ep-surface-2:   #D6EDE7;
  --ep-surface-deep:#F0F7F5;
  --ep-surface-alt: #E0F0EC;
  --ep-surface-blue:#EAF0F8;
  --ep-surface-purp:#EEF0F8;
  --ep-text-on-surface: #1F6B5A;
  --ep-text-bright: #1F4D40;
  --ep-border-2:    #A8D4C8;
}

/* ═══════════════════════════════════════════════════════
   RESET & BASE
═══════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text-link); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: var(--font-mono);
  font-size: .85em;
  background: var(--code-bg);
  color: var(--teal);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ═══════════════════════════════════════════════════════
   LAYOUT SHELL
═══════════════════════════════════════════════════════ */

.layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr var(--toc-w);
  grid-template-rows: var(--header-h) 1fr;
  min-height: 100vh;
}

/* ═══════════════════════════════════════════════════════
   HEADER
═══════════════════════════════════════════════════════ */

.header {
  grid-column: 1 / -1;
  grid-row: 1;
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .02em;
}

.logo-text span { color: var(--teal); }

.header-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  flex-shrink: 0;
}

.header-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.header-spacer { flex: 1; }

.header-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.progress-bar {
  width: 80px;
  height: 4px;
  background: var(--surface);
  border-radius: 100px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--teal), var(--teal-dk));
  border-radius: 100px;
  width: 6.67%; /* 2/30 */
  transition: width 600ms ease;
}

.progress-text { color: var(--teal); font-weight: 700; }

.theme-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-subtle);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: border-color var(--transition), color var(--transition);
  flex-shrink: 0;
}

.theme-btn:hover {
  border-color: var(--teal);
  color: var(--teal);
}

/* ═══════════════════════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════════════════════ */

.sidebar {
  grid-column: 1;
  grid-row: 2;
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 24px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.sidebar-section {
  margin-bottom: 8px;
}

.sidebar-section-label {
  padding: 6px 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 20px;
  font-size: 13.5px;
  color: var(--text-muted);
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
  text-decoration: none;
}

.sidebar-item:hover {
  color: var(--text);
  background: var(--bg-subtle);
  text-decoration: none;
}

.sidebar-item.active {
  color: var(--teal);
  background: var(--active-bg);
  border-left-color: var(--teal);
  font-weight: 600;
}

.sidebar-item.locked {
  opacity: .4;
  cursor: default;
  pointer-events: none;
}

.day-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-faint);
  min-width: 20px;
  transition: color var(--transition);
}

.sidebar-item.active .day-num { color: var(--teal); }

.lock-icon {
  margin-left: auto;
  font-size: 10px;
  opacity: .5;
}

.sidebar-item.published .day-num { color: var(--teal); }

.sidebar-divider {
  height: 1px;
  background: var(--border-sub);
  margin: 12px 20px;
}

/* ═══════════════════════════════════════════════════════
   MAIN CONTENT
═══════════════════════════════════════════════════════ */

.main {
  grid-column: 2;
  grid-row: 2;
  padding: 48px 56px;
  max-width: 100%;
  overflow-x: hidden;
}

/* Page sections — shown/hidden by JS */
.page { display: none; }
.page.active { display: block; animation: fadeIn .25s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Typography ── */

.page-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

.page-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -.02em;
}

.page-lead {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 620px;
}

.page-lead strong { color: var(--text); font-weight: 600; }

.content-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  margin-top: 48px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
  letter-spacing: -.01em;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

h2:first-of-type { margin-top: 0; padding-top: 0; border-top: none; }

h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  margin-top: 28px;
}

p {
  color: var(--text-muted);
  margin-bottom: 16px;
  max-width: 680px;
}

p strong { color: var(--text); }

/* ── Callout ── */

.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--teal);
  border-radius: 8px;
  padding: 14px 18px;
  background: var(--active-bg);
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--text-muted);
  max-width: 680px;
}

.callout strong { color: var(--teal); }

/* ── Category grid on index ── */

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
  max-width: 680px;
}

.category-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  background: var(--bg-subtle);
  transition: border-color var(--transition), background var(--transition);
  cursor: pointer;
  text-decoration: none;
}

.category-card:hover {
  border-color: var(--teal-bd);
  background: var(--active-bg);
  text-decoration: none;
}

.category-icon {
  font-size: 22px;
  margin-bottom: 10px;
}

.category-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.category-count {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.category-progress {
  margin-top: 10px;
  height: 3px;
  background: var(--surface);
  border-radius: 100px;
  overflow: hidden;
}

.category-fill {
  height: 100%;
  background: var(--teal);
  border-radius: 100px;
}

/* ── Topic Areas ── */

.topic-areas-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 40px;
  max-width: 680px;
}

.topic-area-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  background: var(--bg-subtle);
  transition: border-color var(--transition), background var(--transition);
}

.topic-area-card:hover {
  border-color: var(--teal-bd);
  background: var(--active-bg);
}

.topic-area-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.topic-area-icon {
  font-size: 22px;
  flex-shrink: 0;
  margin-top: 1px;
}

.topic-area-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}

.topic-area-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.topic-area-badge {
  margin-left: auto;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--teal);
  background: var(--teal-bg, color-mix(in srgb, var(--teal) 12%, transparent));
  border: 1px solid var(--teal-bd);
  border-radius: 20px;
  padding: 2px 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

.topic-area-episodes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.topic-ep-chip {
  display: inline-block;
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 8px;
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  white-space: nowrap;
}

.topic-ep-chip:hover {
  color: var(--teal);
  border-color: var(--teal-bd);
  background: var(--active-bg);
  text-decoration: none;
}

.topic-ep-chip.weekend-chip {
  color: var(--sky, #38bdf8);
  border-color: color-mix(in srgb, var(--sky, #38bdf8) 30%, transparent);
}

.topic-ep-chip.weekend-chip:hover {
  background: color-mix(in srgb, var(--sky, #38bdf8) 10%, transparent);
  border-color: color-mix(in srgb, var(--sky, #38bdf8) 50%, transparent);
}

/* ── Day card entry ── */

.day-entry {
  margin-bottom: 48px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.day-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.day-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--teal);
  background: var(--active-bg);
  border: 1px solid var(--active-bd);
  padding: 3px 10px;
  border-radius: 100px;
  letter-spacing: .06em;
}

.day-category-badge {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--badge-bg);
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 100px;
}

.day-question {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 20px;
  max-width: 640px;
  letter-spacing: -.01em;
}

/* ── Episode Content Card (inline display) ── */

.episode-content-card {
  width: 100%;
  max-width: 680px;
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px -8px rgba(0,0,0,.4);
  margin-bottom: 32px;
}

.ep-card-header {
  background: linear-gradient(135deg, var(--teal), var(--teal-dk));
  padding: 18px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ep-card-title {
  font-size: 12px;
  font-weight: 700;
  color: #002D26;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.ep-card-day {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #004D3E;
  letter-spacing: .08em;
}

.ep-card-badge {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .12em;
  color: #003D32;
  background: #00FFD1;
  padding: 4px 10px;
  border-radius: 100px;
  text-transform: uppercase;
}

.ep-question-block {
  background: var(--card2);
  border-bottom: 1.5px solid var(--border);
  padding: 22px 26px 20px;
}

.ep-section-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 10px;
  color: var(--teal);
  font-weight: 700;
}

.ep-question-text {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text);
  letter-spacing: -.01em;
}

.ep-question-text em {
  color: var(--teal);
  font-style: normal;
}

.ep-card-body {
  padding: 0 26px 26px;
}

.ep-section {
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.ep-section:last-child {
  border-bottom: none;
}

.ep-analogy-pill {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  background: var(--ep-surface-2);
  border: 1px solid var(--ep-border-2);
  border-radius: 8px;
  padding: 8px 13px;
  font-size: 12px;
  color: var(--ep-text-on-surface);
  margin: 12px 0 14px;
  line-height: 1.5;
}

.ep-analogy-pill strong {
  color: var(--teal);
}

.ep-step-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.ep-step {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.ep-step-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background: var(--teal);
  color: #002D26;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.ep-step-text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
}

.ep-step-text strong {
  color: var(--text);
  font-weight: 700;
}

.ep-step-text .muted {
  color: var(--text-muted);
  font-size: 12px;
}

.ep-diagram {
  margin-top: 14px;
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.ep-col {
  text-align: center;
  padding: 9px 6px;
  border-radius: 8px;
}

.ep-col.cheap {
  background: var(--ep-surface-2);
  border: 1px solid var(--ep-border-2);
}

.ep-col.stable {
  background: var(--ep-surface-2);
  border: 1px solid var(--border);
}

.ep-col.heavy {
  background: var(--ep-surface-purp);
  border: 1px solid var(--border);
}

.ep-col-icon {
  font-size: 18px;
  margin-bottom: 3px;
}

.ep-col-name {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 3px;
}

.ep-col.cheap .ep-col-name { color: var(--teal); }
.ep-col.stable .ep-col-name { color: var(--yellow); }
.ep-col.heavy .ep-col-name { color: var(--pink); }

.ep-col-desc {
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.4;
}

.ep-col-cost {
  margin-top: 5px;
  font-size: 9px;
  font-family: var(--font-mono);
  padding: 2px 5px;
  border-radius: 4px;
  display: inline-block;
}

.ep-col.cheap .ep-col-cost {
  background: #00C9A720;
  color: var(--teal);
}

.ep-col.stable .ep-col-cost {
  background: #FFD16620;
  color: var(--yellow);
}

.ep-col.heavy .ep-col-cost {
  background: #FF6B9D20;
  color: var(--pink);
}

.ep-takeaway-box {
  margin-top: 12px;
  background: linear-gradient(135deg, #00C9A712, #00C9A705);
  border: 1.5px solid #00C9A730;
  border-left: 4px solid var(--teal);
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ep-text-bright);
  font-weight: 600;
}

.ep-discussion-box {
  margin-top: 12px;
  background: var(--ep-surface-purp);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-style: italic;
}

.ep-discussion-box code {
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--code-bg);
  color: var(--text-muted);
  padding: 1px 5px;
  border-radius: 4px;
  font-style: normal;
}

.ep-card-footer {
  border-top: 1.5px solid var(--border);
  padding: 12px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--ep-surface);
}

.ep-footer-tag {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  letter-spacing: .1em;
}

.ep-footer-tag strong {
  color: var(--teal);
}

.ep-validity-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #00C9A718;
  border: 1px solid #00C9A740;
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 9px;
  font-family: var(--font-mono);
  color: var(--teal);
}

.ep-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--teal);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

.ep-table {
  margin-top: 18px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.ep-table thead tr {
  background: var(--ep-surface);
}

.ep-table thead th {
  padding: 8px 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.ep-table tbody tr {
  border-bottom: 1px solid var(--border);
}

.ep-table tbody tr:last-child {
  border-bottom: none;
}

.ep-table tbody tr:nth-child(odd) {
  background: var(--ep-surface);
}

.ep-table tbody tr:nth-child(even) {
  background: var(--ep-surface);
}

.ep-table td {
  padding: 9px 12px;
  vertical-align: top;
  line-height: 1.5;
  color: var(--text);
}

.ep-tree-name {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  white-space: nowrap;
}

.ep-table tr:nth-child(1) td.ep-tree-name {
  color: var(--teal);
}

.ep-table tr:nth-child(2) td.ep-tree-name {
  color: var(--yellow);
}

.ep-table tr:nth-child(3) td.ep-tree-name {
  color: var(--pink);
}

.ep-tree-job {
  font-size: 11px;
}

.ep-tree-cost {
  font-size: 10px;
  font-style: italic;
  color: var(--text-muted);
}

.ep-cost-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 8px;
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 1px;
}

.ep-cost-cheap {
  background: #00C9A720;
  color: var(--teal);
  border: 1px solid #00C9A740;
}

.ep-cost-stable {
  background: #FFD16620;
  color: var(--yellow);
  border: 1px solid #FFD16640;
}

.ep-cost-expensive {
  background: #FF6B9D20;
  color: var(--pink);
  border: 1px solid #FF6B9D40;
}

/* ── Coming soon card ── */

.coming-soon {
  border: 1px dashed var(--border);
  border-radius: 16px;
  padding: 40px;
  text-align: center;
  background: var(--bg-subtle);
  max-width: 720px;
}

.coming-soon-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.coming-soon-text {
  font-size: 14px;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

/* ── Stats bar on index ── */

.stats-bar {
  display: flex;
  gap: 32px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
  max-width: 680px;
}

.stat { flex: 1; }

.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-value span { color: var(--teal); }

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-weight: 600;
}

/* ── Question list on category pages ── */

.question-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 680px;
  margin-bottom: 40px;
}

.question-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-subtle);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  color: var(--text);
}

.question-row:hover {
  border-color: var(--teal-bd);
  background: var(--active-bg);
  text-decoration: none;
  color: var(--text);
}

.question-row.locked {
  opacity: .45;
  cursor: default;
  pointer-events: none;
}

.q-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-faint);
  min-width: 28px;
}

.q-num.done { color: var(--teal); }

.q-text {
  font-size: 14px;
  color: var(--text-muted);
  flex: 1;
  line-height: 1.4;
}

.question-row:hover .q-text { color: var(--text); }

.q-status {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: 4px;
}

.q-status.live {
  background: var(--active-bg);
  color: var(--teal);
  border: 1px solid var(--active-bd);
}

.q-status.upcoming {
  background: var(--badge-bg);
  color: var(--text-faint);
  border: 1px solid var(--border);
}

/* ═══════════════════════════════════════════════════════
   TABLE OF CONTENTS (right)
═══════════════════════════════════════════════════════ */

.toc {
  grid-column: 3;
  grid-row: 2;
  position: sticky;
  top: var(--header-h);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: 32px 24px;
  border-left: 1px solid var(--border);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.toc-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-family: var(--font-mono);
  margin-bottom: 12px;
}

.toc-item {
  display: block;
  font-size: 12.5px;
  color: var(--text-muted);
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 12px;
  transition: color var(--transition), border-color var(--transition);
  text-decoration: none;
}

.toc-item:hover {
  color: var(--text);
  text-decoration: none;
}

.toc-item.active {
  color: var(--teal);
  border-left-color: var(--teal);
}

/* ═══════════════════════════════════════════════════════
   RAMADAN SPECIAL BANNER
═══════════════════════════════════════════════════════ */

.ramadan-banner {
  background: linear-gradient(135deg, #0D2B23, #162D28);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 680px;
  position: relative;
  overflow: hidden;
}

.ramadan-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 50%, #00C9A708 0%, transparent 60%);
}

.banner-icon { font-size: 32px; flex-shrink: 0; }

.banner-text { flex: 1; }

.banner-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--ep-text-bright);
  margin-bottom: 4px;
}

.banner-sub {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.banner-progress {
  text-align: right;
  flex-shrink: 0;
}

.banner-fraction {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--teal);
  line-height: 1;
  margin-bottom: 4px;
}

.banner-fraction-label {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ═══════════════════════════════════════════════════════
   TEAM PHOTO SECTION
═══════════════════════════════════════════════════════ */

.team-photo-section {
  margin-bottom: 40px;
  max-width: 680px;
}

.team-photo {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 16px -4px rgba(0,0,0,.3);
  margin-bottom: 12px;
}

.team-photo-caption {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
}

/* ═══════════════════════════════════════════════════════
   TEAM MEMBERS SECTION
═══════════════════════════════════════════════════════ */

.team-members-section {
  margin: 48px 0;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.team-members-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 680px;
  margin-top: 24px;
}

.team-member-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
  transition: all var(--transition);
}

.team-member-card:hover {
  border-color: var(--teal);
  background: var(--active-bg);
  transform: translateY(-2px);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid var(--teal);
  margin: 0 auto 12px;
  object-fit: cover;
  display: block;
}

.team-member-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.team-member-role {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: .05em;
}

.team-member-contributions {
  margin-top: 10px;
  font-size: 10px;
  color: var(--teal);
  font-family: var(--font-mono);
  background: var(--active-bg);
  padding: 4px 8px;
  border-radius: 4px;
  display: inline-block;
}

/* ═══════════════════════════════════════════════════════
   VDS FOOTER
═══════════════════════════════════════════════════════ */

.vds-footer {
  margin-top: 64px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  max-width: 680px;
}

.vds-logo-text {
  font-size: 13px;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 8px;
  letter-spacing: .05em;
}

.vds-tagline {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.vds-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  font-size: 11px;
}

.vds-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.vds-links a:hover {
  color: var(--teal);
  text-decoration: none;
}

/* ═══════════════════════════════════════════════════════
   EPISODE AUTHOR
═══════════════════════════════════════════════════════ */

.episode-author {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 32px;
  max-width: 680px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--teal);
  object-fit: cover;
  flex-shrink: 0;
}

.author-info {
  flex: 1;
}

.author-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.author-date {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ═══════════════════════════════════════════════════════
   AUDIO PLAYER
═══════════════════════════════════════════════════════ */

.audio-player-section {
  margin-bottom: 32px;
  max-width: 680px;
}

.audio-player-card {
  background: linear-gradient(135deg, #0D2B23, #162D28);
  border: 1px solid var(--teal-bd);
  border-radius: 12px;
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
}

.audio-player-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 50%, #00C9A708 0%, transparent 60%);
}

.audio-player-header {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.audio-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.audio-info {
  flex: 1;
}

.audio-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--ep-text-bright);
  margin-bottom: 3px;
}

.audio-subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

.audio-player {
  position: relative;
  width: 100%;
}

.audio-player audio {
  width: 100%;
  height: 40px;
  border-radius: 8px;
  background: var(--bg-subtle);
}

.audio-player audio::-webkit-media-controls-panel {
  background: var(--bg-subtle);
  border-radius: 8px;
}

.audio-player audio::-webkit-media-controls-play-button,
.audio-player audio::-webkit-media-controls-current-time-display,
.audio-player audio::-webkit-media-controls-time-remaining-display {
  color: var(--text);
}

.audio-player audio::-webkit-media-controls-timeline {
  background: var(--surface);
  border-radius: 4px;
}

.audio-player audio::-webkit-media-controls-timeline::-webkit-slider-thumb {
  background: var(--teal);
}

.audio-duration {
  font-size: 10px;
  color: var(--text-faint);
  font-family: var(--font-mono);
  margin-top: 6px;
  text-align: right;
}

/* ═══════════════════════════════════════════════════════
   EP3 — super_cache rich components
═══════════════════════════════════════════════════════ */

/* Syntax highlighting */
.ep3-code-block {
  margin-top: 14px;
  background: var(--ep-surface-deep);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--ep-text-on-surface);
  overflow-x: auto;
  white-space: pre;
}
.ep3-code-block .kw  { color: #ff6b9d; }
.ep3-code-block .cls { color: #ffd166; }
.ep3-code-block .fn  { color: #00c9a7; }
.ep3-code-block .str { color: #b5ead7; }
.ep3-code-block .cmt { color: #4a8a7c; }
.ep3-code-block .num { color: #b39dff; }

/* Stampede grid */
.ep3-stampede-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}
.ep3-stampede-box {
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.ep3-stampede-box .s-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  margin-bottom: 8px;
}
.ep3-stampede-box.bad  .s-title { color: #ff6b9d; }
.ep3-stampede-box.good .s-title { color: #00c9a7; }
.ep3-stampede-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-family: var(--font-mono);
  line-height: 2;
  color: var(--text-muted);
}
.ep3-stampede-row .arrow      { color: #4a8a7c; }
.ep3-stampede-row.hit .arrow  { color: #00c9a7; }

/* VS grid */
.ep3-vs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}
.ep3-vs-card {
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 14px;
}
.ep3-vs-card .vs-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.ep3-vs-card.db .vs-title { color: #ffd166; }
.ep3-vs-card.sc .vs-title { color: #00c9a7; }
.ep3-vs-row {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.9;
  display: flex;
  gap: 6px;
}
.ep3-vs-row .dot-marker      { color: #4a8a7c; flex-shrink: 0; }
.ep3-vs-row.good .dot-marker { color: #00c9a7; }
.ep3-vs-note {
  margin-top: 12px;
  background: var(--ep-surface-alt);
  border-left: 3px solid #00c9a7;
  border-radius: 6px;
  padding: 10px 13px;
  font-size: 12px;
  color: var(--ep-text-on-surface);
  line-height: 1.65;
}
.ep3-vs-note strong { color: var(--text); }

/* Package table */
.ep3-pkg-table {
  margin-top: 14px;
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.ep3-pkg-table th {
  background: var(--ep-surface);
  color: #00c9a7;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.ep3-pkg-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.5;
}
.ep3-pkg-table tr:last-child td { border-bottom: none; }
.ep3-pkg-pill {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}
.ep3-pkg-pill.core   { background: #00c9a720; color: #00c9a7; border: 1px solid #00c9a740; }
.ep3-pkg-pill.secure { background: #ffd16620; color: #ffd166; border: 1px solid #ffd16640; }
.ep3-pkg-pill.disk   { background: #b39dff20; color: #b39dff; border: 1px solid #b39dff40; }
.ep3-pkg-pill.test   { background: #ff6b9d20; color: #ff6b9d; border: 1px solid #ff6b9d40; }
.ep3-pkg-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}
a.ep3-pkg-link {
  font-family: var(--font-mono);
  font-size: 10px;
  color: #00c9a7;
  text-decoration: none;
  background: #00c9a715;
  border: 1px solid #00c9a730;
  border-radius: 5px;
  padding: 3px 9px;
}
a.ep3-pkg-link:hover { background: #00c9a730; }

/* Layer grid */
.ep3-layer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}
.ep3-layer-col {
  text-align: center;
  padding: 14px 10px;
  border-radius: 10px;
}
.ep3-layer-col.l1 { background: var(--ep-surface-2); border: 1px solid var(--ep-border-2); }
.ep3-layer-col.l2 { background: var(--ep-surface-2); border: 1px solid var(--border); }
.ep3-layer-col.l3 { background: var(--ep-surface-purp); border: 1px solid var(--border); }
.ep3-layer-icon { font-size: 22px; margin-bottom: 6px; }
.ep3-layer-name {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.ep3-layer-col.l1 .ep3-layer-name { color: #00c9a7; }
.ep3-layer-col.l2 .ep3-layer-name { color: #ffd166; }
.ep3-layer-col.l3 .ep3-layer-name { color: #b39dff; }
.ep3-layer-pkg {
  font-family: var(--font-mono);
  font-size: 9px;
  padding: 2px 7px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 6px;
}
.ep3-layer-col.l1 .ep3-layer-pkg { background: #00c9a720; color: #00c9a7; }
.ep3-layer-col.l2 .ep3-layer-pkg { background: #ffd16620; color: #ffd166; }
.ep3-layer-col.l3 .ep3-layer-pkg { background: #b39dff20; color: #b39dff; }
.ep3-layer-desc { font-size: 10.5px; color: var(--text-muted); line-height: 1.5; }
.ep3-layer-perf { margin-top: 8px; font-family: var(--font-mono); font-size: 9.5px; color: #4a8a7c; }

/* Prose */
.ep3-prose {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-top: 10px;
}
.ep3-prose strong { color: var(--text); }
.ep3-prose em     { color: #00c9a7; font-style: normal; }
.ep3-ic {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--ep-surface-2);
  color: #00c9a7;
  padding: 1px 6px;
  border-radius: 4px;
}

/* Use-case grid */
.ep3-usecase-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}
.ep3-usecase-card {
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.ep3-uc-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.ep3-uc-icon  { font-size: 18px; }
.ep3-uc-title { font-size: 12px; font-weight: 700; color: var(--text); }
.ep3-uc-subtitle { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.ep3-uc-body  { font-size: 12px; color: var(--text-muted); line-height: 1.6; }
.ep3-uc-tag {
  display: inline-block;
  margin-top: 6px;
  font-size: 9.5px;
  font-family: var(--font-mono);
  padding: 2px 7px;
  border-radius: 4px;
  background: #00c9a715;
  color: #00c9a7;
  border: 1px solid #00c9a730;
}

/* Benchmark table */
.ep3-bench-table {
  margin-top: 14px;
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 11px;
}
.ep3-bench-table th {
  background: var(--ep-surface);
  color: #00c9a7;
  font-size: 9.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.ep3-bench-table td {
  padding: 7px 12px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
}
.ep3-bench-table tr:last-child td  { border-bottom: none; }
.ep3-bench-table td:first-child    { color: var(--text); }
.ep3-bench-table .fast { color: #00c9a7; }
.ep3-bench-table .mid  { color: #ffd166; }
.ep3-bench-table .slow { color: #ff6b9d; }

/* Perf grid */
.ep3-perf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-top: 14px;
}
.ep3-perf-card {
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 11px 12px;
}
.ep3-perf-card .pc-layer {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 5px;
}
.ep3-perf-card.pm .pc-layer { color: #00c9a7; }
.ep3-perf-card.ps .pc-layer { color: #ffd166; }
.ep3-perf-card.pd .pc-layer { color: #b39dff; }
.ep3-perf-card .pc-num {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}
.ep3-perf-card.pm .pc-num { color: #00c9a7; }
.ep3-perf-card.ps .pc-num { color: #ffd166; }
.ep3-perf-card.pd .pc-num { color: #b39dff; }
.ep3-perf-card .pc-label { font-size: 10.5px; color: var(--text-muted); line-height: 1.5; }
.ep3-perf-card .pc-real {
  margin-top: 7px;
  font-size: 10.5px;
  color: var(--ep-text-on-surface);
  line-height: 1.55;
  border-top: 1px solid var(--border);
  padding-top: 7px;
}
.ep3-perf-card .pc-real strong { color: var(--text); }

/* ═══════════════════════════════════════════════════════
   EP4 — BuildContext deep dive
═══════════════════════════════════════════════════════ */

.ep4-ic {
  font-family: var(--font-mono);
  font-size: 12px;
  background: var(--ep-surface-2);
  color: var(--teal);
  padding: 1px 6px;
  border-radius: 4px;
}

.ep4-highlight-note {
  margin-top: 12px;
  background: var(--ep-surface-alt);
  border-left: 3px solid var(--teal);
  border-radius: 6px;
  padding: 10px 13px;
  font-size: 12px;
  color: var(--ep-text-on-surface);
  line-height: 1.65;
}
.ep4-highlight-note strong { color: var(--text); }

.ep4-warn-note {
  margin-top: 12px;
  background: var(--ep-surface-purp);
  border-left: 3px solid #ff6b9d;
  border-radius: 6px;
  padding: 10px 13px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.65;
}
.ep4-warn-note strong { color: var(--text); }

.ep4-error-box {
  margin-top: 14px;
  background: var(--ep-surface-purp);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════════
   EP5 — Widgets are immutable
═══════════════════════════════════════════════════════ */

.ep5-tree-diagram {
  margin-top: 14px;
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.ep5-tree-col {
  text-align: center;
  padding: 9px 6px;
  border-radius: 8px;
}
.ep5-tree-col.cheap { background: var(--ep-surface-2); border: 1px solid var(--ep-border-2); }
.ep5-tree-col.heavy { background: var(--ep-surface-purp); border: 1px solid var(--border); }
.ep5-tree-icon { font-size: 18px; margin-bottom: 3px; }
.ep5-tree-name {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 3px;
}
.ep5-tree-col.cheap .ep5-tree-name { color: var(--teal); }
.ep5-tree-col.heavy .ep5-tree-name { color: #ff6b9d; }
.ep5-tree-desc { font-size: 10px; color: var(--text-muted); line-height: 1.4; }
.ep5-tree-cost {
  margin-top: 5px;
  font-size: 9px;
  font-family: var(--font-mono);
  padding: 2px 5px;
  border-radius: 4px;
  display: inline-block;
}
.ep5-tree-col.cheap .ep5-tree-cost { background: #00c9a720; color: var(--teal); }
.ep5-tree-col.heavy .ep5-tree-cost { background: #ff6b9d20; color: #ff6b9d; }

/* ═══════════════════════════════════════════════════════
   WEEKEND SIDEBAR SPECIAL
═══════════════════════════════════════════════════════ */

.sidebar-item.weekend .day-num {
  color: #38bdf8;
}

.sidebar-item.weekend {
  color: var(--text-muted);
}

.sidebar-item.weekend:hover {
  color: var(--text);
}

.sidebar-item.weekend.active {
  color: #38bdf8;
  background: #38bdf810;
  border-left-color: #38bdf8;
}

/* ═══════════════════════════════════════════════════════
   EP6 — Weekend Special: Flutter Fun Facts (Sky theme)
═══════════════════════════════════════════════════════ */

.ep6-fun-pill {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 13px;
  font-size: 12px;
  color: #93c5fd;
  margin-bottom: 14px;
  line-height: 1.5;
}
.ep6-fun-pill strong { color: #38bdf8; }

.ep6-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 4px;
  position: relative;
}
.ep6-timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 1.5px;
  background: linear-gradient(to bottom, #38bdf8, #ff6b9d);
  opacity: .4;
}
.ep6-tl-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 0 0 16px;
  position: relative;
}
.ep6-tl-item:last-child { padding-bottom: 0; }
.ep6-tl-dot {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-top: 1px;
  z-index: 1;
}
.ep6-tl-dot.d1 { background: #38bdf8; color: #001a2e; }
.ep6-tl-dot.d2 { background: #ffd166; color: #2d1a00; }
.ep6-tl-dot.d3 { background: #ff9a3c; color: #2d0f00; }
.ep6-tl-dot.d4 { background: #ff6b9d; color: #2d0020; }
.ep6-tl-content { flex: 1; }
.ep6-tl-year {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.ep6-tl-dot.d1 + .ep6-tl-content .ep6-tl-year { color: #38bdf8; }
.ep6-tl-dot.d2 + .ep6-tl-content .ep6-tl-year { color: #ffd166; }
.ep6-tl-dot.d3 + .ep6-tl-content .ep6-tl-year { color: #ff9a3c; }
.ep6-tl-dot.d4 + .ep6-tl-content .ep6-tl-year { color: #ff6b9d; }
.ep6-tl-text { font-size: 12.5px; line-height: 1.6; color: var(--text); }
.ep6-tl-text .muted { color: var(--text-muted); font-size: 12px; }
.ep6-tl-text strong { color: var(--text); font-weight: 700; }
.ep6-tl-text em { color: #38bdf8; font-style: normal; }

.ep6-demo-box {
  margin-top: 14px;
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 15px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.ep6-demo-icon { font-size: 28px; flex-shrink: 0; }
.ep6-demo-text { font-size: 12px; color: var(--text-muted); line-height: 1.6; }
.ep6-demo-text strong { color: var(--text); }
.ep6-demo-text em { color: #38bdf8; font-style: normal; }

.ep6-video-link {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ep-surface-blue);
  border: 1px solid #38bdf835;
  border-radius: 10px;
  padding: 11px 14px;
  margin-top: 12px;
  text-decoration: none !important;
  transition: border-color .2s;
}
.ep6-video-link:hover { border-color: #38bdf8; text-decoration: none !important; }
.ep6-video-thumb {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #38bdf8, #0284c7);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  color: #001a2e;
}
.ep6-video-info { flex: 1; }
.ep6-video-title { font-size: 11.5px; font-weight: 700; color: var(--text); margin-bottom: 2px; line-height: 1.3; }
.ep6-video-sub { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.ep6-video-arrow { font-size: 14px; color: #38bdf8; flex-shrink: 0; }

.ep6-takeaway-box {
  margin-top: 12px;
  background: linear-gradient(135deg, #38bdf712, #38bdf705);
  border: 1.5px solid #38bdf730;
  border-left: 4px solid #38bdf8;
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: 600;
}

.ep6-discussion-box {
  margin-top: 12px;
  background: var(--ep-surface-purp);
  border: 1px dashed #4a3070;
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-style: italic;
}

.ep6-weekend-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #38bdf718;
  border: 1px solid #38bdf740;
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 9px;
  font-family: var(--font-mono);
  color: #38bdf8;
}

.ep6-star {
  animation: ep6spin 4s linear infinite;
  display: inline-block;
}
@keyframes ep6spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* Weekend special card — sky header */
.ep-card-header.sky {
  background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
}
.ep-card-header.sky .ep-card-title { color: #001a2e; }
.ep-card-header.sky .ep-card-day   { color: #003352; font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; }
.ep-card-header.sky .ep-card-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  color: #001a2e;
  background: #7fddff;
  padding: 4px 10px;
  border-radius: 100px;
  text-transform: uppercase;
}

.ep6-section-label-sky    { color: #38bdf8; }
.ep6-section-label-yellow { color: #ffd166; }
.ep6-section-label-pink   { color: #ff6b9d; }

/* ─── EP8: bloc_concurrency ─── */
.ep8-transformer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}
.ep8-transformer-card {
  background: var(--ep-surface-2);
  border: 1px solid var(--ep-border-2);
  border-radius: 8px;
  padding: 10px 12px;
}
.ep8-transformer-card.highlight {
  border-color: var(--pink, #FF6B9D);
  background: var(--ep-surface-purp);
}
.ep8-t-name {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 4px;
}
.ep8-transformer-card.highlight .ep8-t-name { color: #FF6B9D; }
.ep8-t-desc {
  font-size: 11px;
  color: var(--ep-text-on-surface);
  line-height: 1.5;
}
.ep8-transformer-card.highlight .ep8-t-desc { color: var(--text-muted); }
.ep8-t-tag {
  display: inline-block;
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 9px;
  background: #00C9A718;
  border: 1px solid #00C9A730;
  color: var(--teal);
  padding: 2px 6px;
  border-radius: 4px;
}
.ep8-transformer-card.highlight .ep8-t-tag { background: #FF6B9D18; border-color: #FF6B9D30; color: #FF6B9D; }
.ep8-code-block {
  margin-top: 12px;
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--ep-text-on-surface);
  overflow-x: auto;
}
.ep8-code-block .kw  { color: #FF6B9D; }
.ep8-code-block .cls { color: #FFD166; }
.ep8-code-block .fn  { color: var(--teal); }
.ep8-code-block .cm  { color: #4A8A7A; font-style: italic; }
.ep8-code-block .str { color: #A8FF78; }

/* ─── EP9: hydrated_bloc ─── */
.ep9-flow-row {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 14px;
  flex-wrap: nowrap;
}
.ep9-flow-node {
  flex: 1;
  background: var(--ep-surface-2);
  border: 1px solid var(--ep-border-2);
  border-radius: 8px;
  padding: 8px 6px;
  text-align: center;
}
.ep9-flow-node .fn-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--teal);
  font-weight: 700;
}
.ep9-flow-node .fn-desc {
  font-size: 10px;
  color: var(--ep-text-on-surface);
  margin-top: 3px;
  line-height: 1.3;
}
.ep9-flow-arrow {
  color: var(--text-muted);
  font-size: 14px;
  padding: 0 4px;
  flex-shrink: 0;
}
.ep9-feature-row {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.ep9-feature-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--ep-surface-2);
  border: 1px solid var(--ep-border-2);
  border-radius: 100px;
  padding: 4px 10px;
  font-size: 10.5px;
  font-family: var(--font-mono);
  color: var(--ep-text-on-surface);
}
.ep9-feature-pill.yellow { background: var(--ep-surface-2); border-color: #5A4D2D; color: #FFD166; }
.ep9-feature-pill.pink   { background: var(--ep-surface-purp); border-color: #5A2D45; color: #FF6B9D; }
.ep9-feature-pill.blue   { background: var(--ep-surface-blue); border-color: #2D455A; color: #6BBAFF; }
.ep9-warn-box {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-top: 12px;
  background: var(--ep-surface-2);
  border: 1px solid var(--border);
  border-left: 3px solid #FFD166;
  border-radius: 8px;
  padding: 10px 13px;
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
}
.ep9-warn-box code {
  font-family: var(--font-mono);
  font-size: 10px;
  background: var(--ep-surface-2);
  color: #FFD166;
  padding: 1px 5px;
  border-radius: 4px;
}
.ep9-code-block {
  margin-top: 12px;
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--ep-text-on-surface);
  overflow-x: auto;
}
.ep9-code-block .kw  { color: #FF6B9D; }
.ep9-code-block .cls { color: #FFD166; }
.ep9-code-block .fn  { color: var(--teal); }
.ep9-code-block .cm  { color: #4A8A7A; font-style: italic; }
.ep9-code-block .str { color: #A8FF78; }
.ep9-code-block .num { color: #FFD166; }

/* ─── Episode 10 — State Has Gravity (Rania Gahbiche) ─── */

.ep10-code-block {
  margin: 12px 0 4px;
  background: var(--ep-surface-deep);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.ep10-code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 12px;
  background: var(--ep-surface);
  border-bottom: 1px solid var(--border);
}

.ep10-code-dots { display: flex; gap: 5px; }
.ep10-dot-c { width: 9px; height: 9px; border-radius: 50%; }
.ep10-dot-r { background: #ff5f57; }
.ep10-dot-y { background: #febc2e; }
.ep10-dot-g { background: #28c840; }
.ep10-code-lang { font-family: var(--font-mono); font-size: 9px; color: #3D8070; letter-spacing: .08em; }

.ep10-code-block pre {
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.75;
  overflow-x: auto;
  color: var(--text-muted);
}

.ep10-cc        { color: #3D7060; font-style: italic; }
.ep10-ck        { color: #00C9A7; }
.ep10-ccl       { color: #FFD166; }
.ep10-cbad-line  { display: block; background: rgba(255,107,107,.08); }
.ep10-cgood-line { display: block; background: rgba(0,201,167,.06); }

.ep10-mini-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
  margin-top: 12px;
  font-family: var(--font-mono);
}

.ep10-mini-table th {
  padding: 6px 10px;
  background: var(--ep-surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .08em;
  text-align: left;
}

.ep10-mini-table td {
  padding: 7px 10px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 11px;
  vertical-align: top;
}

.ep10-mini-table tr:nth-child(even) td { background: var(--ep-surface); }
.ep10-mini-table td:first-child { color: var(--teal); }

/* ─────────────── EP11 · Keys ─────────────── */

.ep11-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.ep11-info-card { background: var(--ep-surface); border: 1px solid var(--border); border-radius: 10px; padding: 13px 14px; }
.ep11-info-card .ep11-ic-title { font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; }
.ep11-info-card.tl .ep11-ic-title { color: var(--teal); }
.ep11-info-card.pk .ep11-ic-title { color: var(--pink, #FF6B9D); }
.ep11-info-card p { font-size: 12px; color: var(--muted); line-height: 1.65; }
.ep11-info-card p strong { color: var(--text); }
.ep11-code-block { margin-top: 14px; background: var(--ep-surface-deep); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; font-family: var(--mono); font-size: 11.5px; line-height: 1.7; color: var(--ep-text-on-surface); overflow-x: auto; white-space: pre; }
.ep11-code-block .kw { color: #FF6B9D; } .ep11-code-block .cls { color: #FFD166; } .ep11-code-block .fn { color: #00C9A7; } .ep11-code-block .str { color: #B5EAD7; } .ep11-code-block .cmt { color: #4A8A7C; }
.ep11-highlight-note { margin-top: 12px; background: var(--ep-surface-alt); border-left: 3px solid var(--teal); border-radius: 6px; padding: 10px 13px; font-size: 12px; color: var(--ep-text-on-surface); line-height: 1.65; }
.ep11-highlight-note strong { color: var(--text); }
.ep11-three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-top: 14px; }
.ep11-key-card { text-align: center; padding: 14px 10px; border-radius: 10px; }
.ep11-key-card.kc1 { background: var(--ep-surface-2); border: 1px solid var(--ep-border-2); }
.ep11-key-card.kc2 { background: var(--ep-surface-2); border: 1px solid var(--border); }
.ep11-key-card.kc3 { background: var(--ep-surface-purp); border: 1px solid var(--border); }
.ep11-key-card .ki { font-size: 22px; margin-bottom: 6px; }
.ep11-key-card .kn { font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 4px; }
.ep11-key-card.kc1 .kn { color: var(--teal); } .ep11-key-card.kc2 .kn { color: #FFD166; } .ep11-key-card.kc3 .kn { color: #B39DFF; }
.ep11-key-card .kd { font-size: 10.5px; color: var(--muted); line-height: 1.5; }
.ep11-key-card .ku { margin-top: 7px; font-size: 10px; font-family: var(--mono); padding: 2px 7px; border-radius: 4px; display: inline-block; }
.ep11-key-card.kc1 .ku { background: #00C9A720; color: var(--teal); }
.ep11-key-card.kc2 .ku { background: #FFD16620; color: #FFD166; }
.ep11-key-card.kc3 .ku { background: #B39DFF20; color: #B39DFF; }
@media (max-width: 600px) { .ep11-two-col, .ep11-three-col { grid-template-columns: 1fr; } }

/* ─────────────── EP12 · Exception Lifecycle (Habib Soula) ─────────────── */

.ep12-code-block {
  margin-bottom: 10px;
}

.ep12-code-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 12px 0;
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
}

.ep12-code-block pre {
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-top: 1px solid var(--border);
  border-radius: 0 0 8px 8px;
  padding: 10px 12px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.7;
  color: var(--text);
  margin: 0;
}

.ep12-kw { color: #c792ea; }
.ep12-tp { color: #ffcb6b; }
.ep12-fn { color: #82aaff; }
.ep12-st { color: #c3e88d; }
.ep12-cm { color: #546e7a; font-style: italic; }
.ep12-nb { color: #f78c6c; }

/* ─────────────── EP13 · Weekend Special — Scroll Bug (Amine Brahmi) ─────────────── */

.sidebar-item.weekend {
  color: #38BDF8;
}
.sidebar-item.weekend .day-num {
  color: #38BDF8;
  opacity: .9;
}
.sidebar-item.weekend:hover,
.sidebar-item.weekend.active {
  background: #38BDF810;
  color: #38BDF8;
}

.ep13-fun-pill {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 13px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.5;
}
.ep13-fun-pill strong { color: #38BDF8; }

.ep13-finger-speed {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}
.ep13-speed-card {
  flex: 1;
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 12px;
  text-align: center;
}
.ep13-speed-fingers { font-size: 20px; margin-bottom: 4px; }
.ep13-speed-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--text-muted);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.ep13-speed-val { font-family: var(--font-mono); font-size: 15px; font-weight: 700; }
.ep13-speed-val.s1 { color: #38BDF8; }
.ep13-speed-val.s2 { color: #FFD166; }
.ep13-speed-val.s3 { color: #FF9A3C; }
.ep13-speed-val.s4 { color: #FF6B9D; }

.ep13-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 4px;
  position: relative;
}
.ep13-timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 1.5px;
  background: linear-gradient(to bottom, #38BDF8, #FF6B9D);
  opacity: .4;
}
.ep13-tl-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 0 0 16px;
  position: relative;
}
.ep13-tl-item:last-child { padding-bottom: 0; }
.ep13-tl-dot {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-top: 1px;
  z-index: 1;
}
.ep13-tl-dot.d1 { background: #38BDF8; color: #001A2E; }
.ep13-tl-dot.d2 { background: #FFD166; color: #2D1A00; }
.ep13-tl-dot.d3 { background: #FF9A3C; color: #2D0F00; }
.ep13-tl-dot.d4 { background: #FF6B9D; color: #2D0020; }
.ep13-tl-content { flex: 1; }
.ep13-tl-year {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.ep13-tl-dot.d1 + .ep13-tl-content .ep13-tl-year { color: #38BDF8; }
.ep13-tl-dot.d2 + .ep13-tl-content .ep13-tl-year { color: #FFD166; }
.ep13-tl-dot.d3 + .ep13-tl-content .ep13-tl-year { color: #FF9A3C; }
.ep13-tl-dot.d4 + .ep13-tl-content .ep13-tl-year { color: #FF6B9D; }
.ep13-tl-text { font-size: 12.5px; line-height: 1.6; color: var(--text); }
.ep13-tl-text .muted { color: var(--text-muted); font-size: 12px; }
.ep13-tl-text strong { color: var(--text); font-weight: 700; }
.ep13-tl-text em { color: #38BDF8; font-style: normal; }

.ep13-demo-box {
  margin-top: 14px;
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 15px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.ep13-demo-icon { font-size: 28px; flex-shrink: 0; }
.ep13-demo-text { font-size: 12px; color: var(--text-muted); line-height: 1.6; }
.ep13-demo-text strong { color: var(--text); }
.ep13-demo-text em { color: #38BDF8; font-style: normal; }

.ep13-gh-link {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--ep-surface-blue);
  border: 1px solid #38BDF835;
  border-radius: 10px;
  padding: 11px 14px;
  margin-top: 12px;
  text-decoration: none;
  transition: border-color .2s;
}
.ep13-gh-link:hover { border-color: #38BDF8; }
.ep13-gh-thumb {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.ep13-gh-thumb.bug { background: linear-gradient(135deg, #38BDF8, #0284C7); }
.ep13-gh-thumb.pr  { background: linear-gradient(135deg, #FF6B9D, #FF9A3C); }
.ep13-gh-info { flex: 1; }
.ep13-gh-title { font-size: 11.5px; font-weight: 700; color: var(--text); margin-bottom: 2px; line-height: 1.3; }
.ep13-gh-sub   { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.ep13-gh-arrow { font-size: 14px; color: #38BDF8; flex-shrink: 0; }

.ep13-takeaway-box {
  margin-top: 12px;
  background: linear-gradient(135deg, #38BDF712, #38BDF705);
  border: 1.5px solid #38BDF730;
  border-left: 4px solid #38BDF8;
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: 600;
}
.ep13-discussion-box {
  margin-top: 12px;
  background: var(--ep-surface-purp);
  border: 1px dashed #4A3070;
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-style: italic;
}

.ep13-weekend-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #38BDF718;
  border: 1px solid #38BDF740;
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 9px;
  font-family: var(--font-mono);
  color: #38BDF8;
}
.ep13-star {
  animation: ep13-spin 4s linear infinite;
  display: inline-block;
}
@keyframes ep13-spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ── Hamburger button ── */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-subtle);
  cursor: pointer;
  padding: 6px;
  flex-shrink: 0;
}
.hamburger-btn span {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: transform 180ms ease, opacity 180ms ease;
}
.hamburger-btn:hover span { background: var(--teal); }
.hamburger-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-btn.open span:nth-child(2) { opacity: 0; }
.hamburger-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Sidebar overlay ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 199;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.visible { display: block; }

/* ── ep15: Animations ── */
.ep15-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.ep15-anim-card { background: var(--ep-surface); border: 1px solid var(--border-color); border-radius: 10px; padding: 13px 14px; }
.ep15-anim-card .ac-title { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; }
.ep15-anim-card.impl .ac-title { color: var(--teal); }
.ep15-anim-card.expl .ac-title { color: var(--yellow); }
.ep15-anim-card .ac-row { font-size: 11.5px; color: var(--text-muted); line-height: 1.9; display: flex; gap: 6px; }
.ep15-anim-card .ac-row .m { color: var(--teal); flex-shrink: 0; }
.ep15-anim-card.expl .ac-row .m { color: var(--yellow); }
.ep15-decision-grid { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 14px; }
.ep15-decision-row { display: grid; grid-template-columns: 1fr 24px 1fr; gap: 10px; align-items: center; }
.ep15-decision-row .scenario { background: var(--ep-surface); border: 1px solid var(--border-color); border-radius: 8px; padding: 9px 12px; font-size: 12px; color: var(--text-muted); }
.ep15-decision-row .arrow { text-align: center; color: var(--teal); font-size: 14px; }
.ep15-decision-row .answer { border-radius: 8px; padding: 9px 12px; font-size: 12px; font-family: var(--font-mono); font-weight: 700; text-align: center; }
.ep15-decision-row .answer.impl { background: var(--ep-surface-2); color: var(--teal); border: 1px solid var(--ep-border-2); }
.ep15-decision-row .answer.expl { background: var(--ep-surface-2); color: var(--yellow); border: 1px solid var(--border); }
.ep15-highlight-note { margin-top: 12px; background: var(--ep-surface-alt); border-left: 3px solid var(--teal); border-radius: 6px; padding: 10px 13px; font-size: 12px; color: var(--ep-text-on-surface); line-height: 1.65; }
.ep15-highlight-note strong { color: var(--text); }
.ep15-code-block { margin-top: 14px; background: var(--ep-surface-deep); border: 1px solid var(--border-color); border-radius: 10px; padding: 16px 18px; font-family: var(--font-mono); font-size: 11.5px; line-height: 1.7; color: var(--ep-text-on-surface); overflow-x: auto; white-space: pre; }
.ep15-code-block .kw { color: #FF6B9D; }
.ep15-code-block .cls { color: #FFD166; }
.ep15-code-block .fn { color: #00C9A7; }
.ep15-code-block .str { color: #B5EAD7; }
.ep15-code-block .cmt { color: #4A8A7C; }
.ep15-code-block .num { color: #B39DFF; }
@media (max-width: 600px) {
  .ep15-two-col { grid-template-columns: 1fr; }
  .ep15-decision-row { grid-template-columns: 1fr; }
  .ep15-decision-row .arrow { display: none; }
}

/* ─── EP17: dispose() ─── */
.ep17-leak-diagram {
  margin-top: 16px;
  background: var(--ep-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.ep17-leak-col {
  text-align: center;
  padding: 10px 8px;
  border-radius: 8px;
}

.ep17-leak-col.safe   { background: var(--ep-surface-2); border: 1px solid var(--ep-border-2); }
.ep17-leak-col.warn   { background: var(--ep-surface-2); border: 1px solid var(--border); }
.ep17-leak-col.danger { background: var(--ep-surface-purp); border: 1px solid var(--border); }

.ep17-leak-icon { font-size: 20px; margin-bottom: 4px; }

.ep17-leak-name {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.ep17-leak-col.safe   .ep17-leak-name { color: var(--teal); }
.ep17-leak-col.warn   .ep17-leak-name { color: #FFD166; }
.ep17-leak-col.danger .ep17-leak-name { color: #FF6B9D; }

.ep17-leak-desc {
  font-size: 10.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.ep17-leak-cost {
  margin-top: 6px;
  font-size: 10px;
  font-family: var(--font-mono);
  padding: 2px 6px;
  border-radius: 4px;
  display: inline-block;
}

.ep17-leak-col.safe   .ep17-leak-cost { background: #00C9A720; color: var(--teal); }
.ep17-leak-col.warn   .ep17-leak-cost { background: #FFD16620; color: #FFD166; }
.ep17-leak-col.danger .ep17-leak-cost { background: #FF6B9D20; color: #FF6B9D; }

/* ── ep19 · Tree Shaking ── */
.ep19-example-label {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--yellow);
  margin: 16px 0 10px;
}

.ep19-code-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.ep19-code-panel { border-radius: 10px; overflow: hidden; }

.ep19-code-panel-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.ep19-code-panel.bad .ep19-code-panel-header {
  background: var(--ep-surface-purp);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-bottom: none;
}

.ep19-code-panel.good .ep19-code-panel-header {
  background: var(--ep-surface-2);
  color: var(--teal);
  border: 1px solid var(--border);
  border-bottom: none;
}

.ep19-code-panel pre {
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.75;
  padding: 10px 12px;
  white-space: pre;
}

.ep19-code-panel.bad pre {
  background: var(--ep-surface-purp);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 10px 10px;
  color: var(--text-muted);
}

.ep19-code-panel.good pre {
  background: var(--ep-surface-2);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 10px 10px;
  color: var(--text-muted);
}

.ep19-code-panel .cm  { color: #4A8070; }
.ep19-code-panel .kw  { color: #C9AAFF; }
.ep19-code-panel .ty  { color: #FFD166; }
.ep19-code-panel .fn  { color: var(--ep-text-on-surface); }
.ep19-code-panel .st  { color: #B8E986; }
.ep19-code-panel .nu  { color: #FF9F6B; }

.ep19-terminal {
  background: var(--ep-surface-deep);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 12px;
}

.ep19-terminal-bar {
  background: var(--ep-surface);
  padding: 6px 12px;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--border);
}

.ep19-t-dot { width: 8px; height: 8px; border-radius: 50%; }

.ep19-terminal-bar span {
  font-family: var(--mono);
  font-size: 9px;
  color: #3A7060;
  margin-left: 4px;
  letter-spacing: .08em;
}

.ep19-terminal pre {
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.8;
  padding: 12px 14px;
  white-space: pre;
  color: #7ABFB2;
}

.ep19-terminal pre .cmd  { color: var(--teal); }
.ep19-terminal pre .head { color: #FFD166; font-weight: 700; }
.ep19-terminal pre .bad  { color: #FF8080; }
.ep19-terminal pre .good { color: #00C9A7; font-weight: 700; }
.ep19-terminal pre .dim  { color: #3A6A5A; }
.ep19-terminal pre .arrow{ color: #FFD166; }

.ep19-size-bars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 4px;
}

.ep19-size-bar-label {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  margin-bottom: 5px;
  letter-spacing: .06em;
}

.ep19-size-bar-track {
  height: 22px;
  background: var(--ep-surface);
  border-radius: 6px;
  overflow: hidden;
}

.ep19-size-bar-fill {
  height: 100%;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding-left: 10px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
}

.ep19-size-bar-fill.bad  { background: linear-gradient(90deg, #7A2020, #C03030); color: var(--text-muted); width: 100%; }
.ep19-size-bar-fill.good { background: linear-gradient(90deg, #007A5A, #00C9A7); color: #002D26; width: 42%; }

/* ── ep20 · Weekend Special: The State Management War (Sky theme) ── */
.ep20-fun-pill {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 13px;
  font-size: 12px;
  color: #93c5fd;
  margin-bottom: 14px;
  line-height: 1.5;
}
.ep20-fun-pill strong { color: #38bdf8; }

.ep20-faction-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 14px;
}
.ep20-faction-card {
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 11px 12px;
}
.ep20-faction-icon { font-size: 18px; margin-bottom: 4px; }
.ep20-faction-name {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 3px;
}
.ep20-faction-name.f1 { color: #38bdf8; }
.ep20-faction-name.f2 { color: #ffd166; }
.ep20-faction-name.f3 { color: #ff9a3c; }
.ep20-faction-name.f4 { color: #ff6b9d; }
.ep20-faction-quote { font-size: 11px; color: var(--text-muted); line-height: 1.5; font-style: italic; }

.ep20-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 4px;
  position: relative;
}
.ep20-timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 8px;
  bottom: 8px;
  width: 1.5px;
  background: linear-gradient(to bottom, #38bdf8, #ff6b9d);
  opacity: .4;
}
.ep20-tl-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 0 0 16px;
  position: relative;
}
.ep20-tl-item:last-child { padding-bottom: 0; }
.ep20-tl-dot {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 7.5px;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-top: 1px;
  z-index: 1;
  text-align: center;
  line-height: 1.2;
  padding: 2px;
}
.ep20-tl-dot.d1 { background: #38bdf8; color: #001a2e; }
.ep20-tl-dot.d2 { background: #ffd166; color: #2d1a00; }
.ep20-tl-dot.d3 { background: #ff9a3c; color: #2d0f00; }
.ep20-tl-dot.d4 { background: #ff6b9d; color: #2d0020; }
.ep20-tl-content { flex: 1; }
.ep20-tl-year {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 2px;
}
.ep20-tl-dot.d1 + .ep20-tl-content .ep20-tl-year { color: #38bdf8; }
.ep20-tl-dot.d2 + .ep20-tl-content .ep20-tl-year { color: #ffd166; }
.ep20-tl-dot.d3 + .ep20-tl-content .ep20-tl-year { color: #ff9a3c; }
.ep20-tl-dot.d4 + .ep20-tl-content .ep20-tl-year { color: #ff6b9d; }
.ep20-tl-text { font-size: 12.5px; line-height: 1.6; color: var(--text); }
.ep20-tl-text .muted { color: var(--text-muted); font-size: 12px; }
.ep20-tl-text strong { color: var(--text); font-weight: 700; }
.ep20-tl-text em { color: #38bdf8; font-style: normal; }

.ep20-demo-box {
  margin-top: 14px;
  background: var(--ep-surface-blue);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 15px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.ep20-demo-icon { font-size: 28px; flex-shrink: 0; }
.ep20-demo-text { font-size: 12px; color: var(--text-muted); line-height: 1.6; }
.ep20-demo-text strong { color: var(--text); }
.ep20-demo-text em { color: #38bdf8; font-style: normal; }

.ep20-verdict-row { display: flex; gap: 8px; margin-top: 12px; }
.ep20-verdict-pill {
  flex: 1;
  background: var(--ep-surface-blue);
  border-radius: 8px;
  padding: 10px 11px;
  text-align: center;
  border: 1px solid var(--border);
}
.ep20-verdict-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 2px;
}
.ep20-verdict-num.v1 { color: #38bdf8; }
.ep20-verdict-num.v2 { color: #ffd166; }
.ep20-verdict-num.v3 { color: #ff9a3c; }
.ep20-verdict-lbl { font-size: 10px; color: var(--text-muted); line-height: 1.4; }

.ep20-takeaway-box {
  margin-top: 12px;
  background: linear-gradient(135deg, #38bdf712, #38bdf705);
  border: 1.5px solid #38bdf730;
  border-left: 4px solid #38bdf8;
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-weight: 600;
}
.ep20-discussion-box {
  margin-top: 12px;
  background: var(--ep-surface-purp);
  border: 1px dashed #4a3070;
  border-radius: 10px;
  padding: 13px 15px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-muted);
  font-style: italic;
}
.ep20-section-label { font-family: var(--font-mono); font-size: 9px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; font-weight: 700; }
.ep20-section-label.sky    { color: #38bdf8; }
.ep20-section-label.yellow { color: #ffd166; }
.ep20-section-label.pink   { color: #ff6b9d; }
.ep20-section-label.orange { color: #ff9a3c; }

.ep20-weekend-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  background: #38bdf718;
  border: 1px solid #38bdf740;
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 9px;
  font-family: var(--font-mono);
  color: #38bdf8;
}
.ep20-star { animation: ep20-spin 4s linear infinite; display: inline-block; }
@keyframes ep20-spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* ─── ep26: Rendering Pipeline ─────────────────────── */
.ep26-pipeline { display: flex; flex-direction: column; gap: 0; margin-top: 14px; }
.ep26-pipe-row { display: flex; align-items: stretch; gap: 10px; margin-bottom: 4px; }
.ep26-pipe-num { width: 28px; height: 28px; border-radius: 7px; display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: 11px; font-weight: 700; flex-shrink: 0; margin-top: 2px; }
.ep26-pipe-num.p1 { background: var(--teal); color: #002D26; }
.ep26-pipe-num.p2 { background: var(--yellow); color: #2D2000; }
.ep26-pipe-num.p3 { background: var(--purple); color: #1A1040; }
.ep26-pipe-num.p4 { background: var(--pink); color: #2D0020; }
.ep26-pipe-num.p5 { background: #4ECDC4; color: #002D26; }
.ep26-pipe-body { flex: 1; background: var(--ep-surface); border: 1px solid var(--border); border-radius: 9px; padding: 10px 14px; }
.ep26-pipe-body .ep26-pb-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.ep26-pipe-body .ep26-pb-desc { font-size: 11.5px; color: var(--muted); line-height: 1.5; }
.ep26-pipe-body .ep26-pb-time { font-family: var(--font-mono); font-size: 10px; margin-top: 4px; }
.ep26-pipe-connector { width: 28px; height: 14px; display: flex; justify-content: center; align-items: center; color: #4A8A7C; font-size: 11px; }
.ep26-perf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.ep26-perf-card { background: var(--ep-surface); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.ep26-perf-card .ep26-pc-title { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 6px; }
.ep26-perf-card.good .ep26-pc-title { color: var(--teal); }
.ep26-perf-card.bad  .ep26-pc-title { color: var(--pink); }
.ep26-perf-card p { font-size: 12px; color: var(--muted); line-height: 1.65; }
.ep26-perf-card p strong { color: var(--text); }

/* ─── ep27: Isolates ────────────────────────────────── */
.ep27-code-block { margin-top: 14px; background: var(--ep-surface-deep); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; font-family: var(--font-mono); font-size: 11.5px; line-height: 1.7; color: var(--ep-text-on-surface); overflow-x: auto; white-space: pre; }
.ep27-code-block .kw { color: #FF6B9D; } .ep27-code-block .cls { color: #FFD166; } .ep27-code-block .fn { color: #00C9A7; } .ep27-code-block .str { color: #B5EAD7; } .ep27-code-block .cmt { color: #4A8A7C; }
.ep27-highlight-note { margin-top: 12px; background: var(--ep-surface-alt); border-left: 3px solid var(--teal); border-radius: 6px; padding: 10px 13px; font-size: 12px; color: var(--ep-text-on-surface); line-height: 1.65; }
.ep27-highlight-note strong { color: var(--text); }
.ep27-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.ep27-info-card { background: var(--ep-surface); border: 1px solid var(--border); border-radius: 10px; padding: 13px 14px; }
.ep27-info-card .ep27-ic-title { font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 8px; }
.ep27-info-card.tl .ep27-ic-title { color: var(--teal); }
.ep27-info-card.yl .ep27-ic-title { color: var(--yellow); }
.ep27-info-card p { font-size: 12px; color: var(--muted); line-height: 1.65; }
.ep27-info-card p strong { color: var(--text); }
@media (max-width: 600px) { .ep26-perf-grid, .ep27-two-col { grid-template-columns: 1fr; } }

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */

@media (max-width: 1200px) {
  .layout { grid-template-columns: var(--sidebar-w) 1fr; }
  .toc { display: none; }
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 220px 1fr; }
  .main { padding: 40px 40px; }
  .header-subtitle { display: none; }
  .header-divider  { display: none; }
  .ep-card-header  { padding: 14px 20px; }
  .ep-card-body    { padding: 0 20px 20px; }
  .ep-question-block { padding: 18px 20px 16px; }
}

@media (max-width: 768px) {
  .layout { grid-template-columns: 1fr; grid-template-rows: var(--header-h) auto; }
  .main { grid-column: 1; }
  .sidebar {
    position: fixed;
    top: var(--header-h);
    left: 0;
    height: calc(100vh - var(--header-h));
    width: var(--sidebar-w);
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 250ms ease;
    box-shadow: 4px 0 24px -4px rgba(0,0,0,.4);
  }
  .sidebar.sidebar-open { transform: translateX(0); }
  .hamburger-btn { display: flex; }
  .header { padding: 0 16px; gap: 12px; }
  .header-progress { display: none; }
  .main { padding: 32px 20px; }
  .category-grid { grid-template-columns: 1fr; }
  .topic-areas-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  /* Typography */
  .page-title        { font-size: 24px; }
  .page-lead         { font-size: 14px; }
  .ep-question-text  { font-size: 15px; }
  .day-question      { font-size: 16px; }

  /* Header (tighten further on very small screens) */
  .header            { padding: 0 12px; gap: 8px; }

  /* Episode card */
  .episode-content-card { border-radius: 12px; }
  .ep-card-header    { padding: 12px 16px; }
  .ep-card-body      { padding: 0 16px 16px; }
  .ep-question-block { padding: 16px 16px 14px; }
  .ep-card-footer    { padding: 10px 16px; flex-wrap: wrap; gap: 8px; }

  /* Stats bar */
  .stats-bar         { flex-wrap: wrap; gap: 16px; }
  .stat              { flex: 1 1 40%; }

  /* Ramadan banner */
  .ramadan-banner    { flex-direction: column; align-items: flex-start; gap: 12px; }

  /* Team grid: 3-col → 2-col */
  .team-members-grid { grid-template-columns: repeat(2, 1fr); }

  /* Coming soon */
  .coming-soon       { padding: 24px 20px; }

  /* Code overflow */
  pre                { overflow-x: auto; }
  .ep10-code-block pre { overflow-x: auto; }
  .ep10-mini-table   { display: block; overflow-x: auto; }

  /* Wide tables */
  .ep-table          { display: block; overflow-x: auto; }

  /* EP3 grids */
  .ep3-stampede-grid,
  .ep3-vs-grid,
  .ep3-usecase-grid  { grid-template-columns: 1fr; }
  .ep3-layer-grid,
  .ep3-perf-grid     { grid-template-columns: 1fr 1fr; }

  /* EP4 diagram */
  .ep-diagram        { grid-template-columns: 1fr; gap: 6px; }

  /* EP8 grid */
  .ep8-transformer-grid { grid-template-columns: 1fr; }

  /* EP9 flow row */
  .ep9-flow-row      { flex-wrap: wrap; gap: 6px; }
  .ep9-flow-node     { flex: 1 1 calc(50% - 6px); }
  .ep9-flow-arrow    { display: none; }

  /* EP13 finger speed cards */
  .ep13-finger-speed { flex-wrap: wrap; }
  .ep13-speed-card   { flex: 1 1 calc(50% - 5px); }
}

@media (max-width: 360px) {
  .main              { padding: 24px 14px; }
  .page-title        { font-size: 20px; }
  .team-members-grid { grid-template-columns: 1fr; }
  .ep3-layer-grid,
  .ep3-perf-grid     { grid-template-columns: 1fr; }
  .ep9-flow-node     { flex: 1 1 100%; }
  .stat              { flex: 1 1 100%; }
}

/* ═══════════════════════════════════════════════════════
   CELEBRATION FEATURES
═══════════════════════════════════════════════════════ */

/* 1. Progress bar glow pulse */
@keyframes glow-pulse {
  0%, 100% { box-shadow: none; }
  50%       { box-shadow: 0 0 10px 3px rgba(0,201,167,.55), 0 0 20px 6px rgba(0,201,167,.25); }
}
.progress-fill.complete {
  animation: glow-pulse 2s ease-in-out infinite;
}

/* 2. Series Complete eyebrow badge */
.series-complete-badge {
  display: inline-block;
  margin-left: 10px;
  padding: 2px 10px;
  border-radius: 100px;
  background: var(--teal);
  color: #0D1117;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  vertical-align: middle;
  box-shadow: 0 0 8px 2px rgba(0,201,167,.30);
}

/* 3. Celebration banner shimmer */
@keyframes shimmer-border {
  0%, 100% { border-color: var(--border); box-shadow: none; }
  50%       { border-color: rgba(255,209,102,.60);
              box-shadow: 0 0 12px 2px rgba(255,209,102,.15), inset 0 0 16px 0 rgba(255,209,102,.04); }
}
.ramadan-banner.complete {
  animation: shimmer-border 3s ease-in-out infinite;
}

/* 4. Confetti particles */
@keyframes confetti-rise {
  0%   { transform: translateY(0) rotate(0deg); opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateY(var(--rise)) rotate(var(--spin)); opacity: 0; }
}
.confetti-container {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 9999; overflow: hidden;
}
.confetti-particle {
  position: absolute; bottom: 0;
  font-size: var(--size, 14px); line-height: 1;
  animation: confetti-rise var(--dur, 2.5s) var(--delay, 0s) ease-out forwards;
  will-change: transform, opacity;
}

/* ═══════════════════════════════════════════════════════
   HALL OF FAME
═══════════════════════════════════════════════════════ */

.hof-section {
  margin-top: 0;
  margin-bottom: 40px;
  max-width: 680px;
}

.hof-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 8px;
}

.hof-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 8px;
}

.hof-lead {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 36px;
}

/* Podium */
.hof-podium {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.hof-podium-slot {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  max-width: 180px;
}

.hof-rank-badge {
  font-size: 28px;
  margin-bottom: 10px;
}

.hof-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 10px;
  border: 3px solid transparent;
  transition: transform var(--transition);
}

.hof-podium-slot.gold .hof-avatar   { border-color: #ffd166; box-shadow: 0 0 16px 4px rgba(255,209,102,.35); }
.hof-podium-slot.silver .hof-avatar { border-color: #a8b8c8; box-shadow: 0 0 10px 2px rgba(168,184,200,.30); }
.hof-podium-slot.bronze .hof-avatar { border-color: #cd7f32; box-shadow: 0 0 10px 2px rgba(205,127,50,.25); }

.hof-podium-slot.gold .hof-avatar {
  width: 88px;
  height: 88px;
}

.hof-podium-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 2px;
}

.hof-podium-count {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  margin-bottom: 10px;
}

/* Podium block (the physical step) */
.hof-podium-block {
  width: 100%;
  border-radius: 8px 8px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 20px;
}

.hof-podium-slot.gold   .hof-podium-block { height: 80px; background: linear-gradient(180deg, #ffd16622, #ffd16608); border: 1px solid #ffd16640; color: #ffd166; }
.hof-podium-slot.silver .hof-podium-block { height: 60px; background: linear-gradient(180deg, #a8b8c822, #a8b8c808); border: 1px solid #a8b8c840; color: #a8b8c8; }
.hof-podium-slot.bronze .hof-podium-block { height: 44px; background: linear-gradient(180deg, #cd7f3222, #cd7f3208); border: 1px solid #cd7f3240; color: #cd7f32; }

/* Contributors row */
.hof-contributors-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 12px;
}

.hof-contributors-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.hof-contributor-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px 6px 6px;
  transition: border-color var(--transition), background var(--transition);
}

.hof-contributor-chip:hover {
  border-color: var(--teal-bd);
  background: var(--active-bg);
}

.hof-chip-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
}

.hof-chip-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
}

.hof-chip-count {
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--teal);
  background: var(--active-bg);
  padding: 1px 7px;
  border-radius: 20px;
  margin-left: 2px;
}

.hof-chip-count.zero {
  color: var(--text-faint);
  background: transparent;
}

/* Closing callout */
.hof-closing-callout {
  background: linear-gradient(135deg, #0D2B23, #162D28);
  border: 1px solid var(--teal-bd);
  border-radius: 12px;
  padding: 20px 24px;
  font-size: 14px;
  color: var(--ep-text-bright);
  line-height: 1.7;
  text-align: center;
}

/* Responsive */
@media (max-width: 560px) {
  .hof-podium { gap: 8px; }
  .hof-podium-slot.gold .hof-avatar { width: 72px; height: 72px; }
  .hof-podium-block { font-size: 16px; }
}

/* ═══════════════════════════════════════════════════════
   HALL OF FAME — CELEBRATION SECTION
═══════════════════════════════════════════════════════ */

.hof-celebration-section {
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.hof-celebration-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 8px;
}

.hof-celebration-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 16px;
}

.hof-celebration-body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 600px;
}

/* Shoutout cards */
.hof-shoutouts {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 48px;
}

.hof-shoutout-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color var(--transition), background var(--transition);
}

.hof-shoutout-card:hover {
  border-color: var(--teal-bd);
  background: var(--active-bg);
}

.hof-shoutout-card--skander {
  border-style: dashed;
  opacity: .85;
}

.hof-shoutout-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  flex-shrink: 0;
  margin-top: 2px;
}

.hof-shoutout-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
}

.hof-shoutout-text strong {
  color: var(--text);
  font-weight: 700;
}

/* Eid card */
.hof-eid-card {
  background: linear-gradient(135deg, #0a2218 0%, #0d2b23 50%, #122e28 100%);
  border: 1px solid var(--teal-bd);
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hof-eid-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(45,212,191,.08) 0%, transparent 65%);
  pointer-events: none;
}

.hof-eid-crescent {
  font-size: 40px;
  margin-bottom: 12px;
  display: block;
  opacity: .9;
}

.hof-eid-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--ep-text-bright);
  margin-bottom: 4px;
  letter-spacing: .02em;
}

.hof-eid-subtitle {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 20px;
}

.hof-eid-body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ep-text-bright);
  opacity: .8;
  max-width: 480px;
  margin: 0 auto 24px;
}

.hof-eid-tagline {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--teal);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 560px) {
  .hof-eid-card { padding: 28px 20px; }
  .hof-eid-title { font-size: 28px; }
  .hof-shoutout-card { flex-direction: column; gap: 10px; }
}