/* ============================================================
   SOMMAIRE
   ------------------------------------------------------------
   1.  Variables / design tokens (:root)
   2.  Reset & base (*, body, button, input, select)
   3.  Grain de papier (.paper-grain)
   4.  En-tete / brand (.brand)
   5.  Shell du lecteur (.reader-shell, .reader-panel, .reader-heading)
   6.  Controles du lecteur - conteneur (.reader-controls, .control-card)
   7.  Carte du mode de lecture (.reading-mode-card / switch)
   8.  Selecteur de chapitre (.chapter-jump, .chapter-select-*)
   9.  Titres & eyebrow (.eyebrow, h1..h3)
   10. Modale du mode de lecture (.reading-mode-modal / dialog)
   11. Modale de choix de navigation (.navigation-choice-*)
   12. Scene & planches (.reader-stage, .reader-page-unit)
   13. Livre & image de planche (.book, .comic-page, .page-image)
   14. Objets narratifs (.story-object-*)
   15. Zones de clic & compteur (.page-click-zone, .mobile-page-counter)
   16. Feuille vide (.empty-sheet)
   17. Panneau narratif (.story-panel, .panel-card, .story-text)
   18. Panneau de choix de route (.route-follow-panel, .route-choice)
   19. Feuille de chapitre (.chapter-sheet)
   20. Navigation des planches (.reader-nav, .page-arrow, .page-counter)
   21. Dock des miniatures (.thumbnail-dock, .adjacent-thumb-*)
   22. Carte des chemins - declencheur (.route-map-toggle / icon)
   23. Carte des chemins - modale (.route-map-modal / dialog / filtre)
   24. Carte des chemins - grille & branches (.route-map, .route-branch)
   25. Connecteurs SVG (.route-connectors)
   26. Miniatures (.thumb-button, .thumb-page, .thumb-number)
   27. Media queries responsives (820px, 680px, reduced-motion)
   ============================================================ */

/* ============================================================
   VARIABLES / DESIGN TOKENS
   ============================================================ */
:root {
  color-scheme: dark;
  --bg: #0d0f12;
  --surface: #15191f;
  --surface-strong: #1b2129;
  --surface-soft: #101419;
  --text: #f4f0e8;
  --muted: #a9b0ba;
  --muted-strong: #d2d7de;
  --accent: #e2b45d;
  --accent-strong: #f1c66d;
  --danger: #c05a4c;
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.2);
  --shadow: rgba(0, 0, 0, 0.42);
  --page-ratio: 1024 / 1536;
  --page-width: min(40vw, calc((100svh - 6rem) * (1024 / 1536)));
  --icon-eye: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2.06 12.35a1 1 0 0 1 0-.7 10.75 10.75 0 0 1 19.88 0 1 1 0 0 1 0 .7 10.75 10.75 0 0 1-19.88 0'/%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3C/svg%3E");
  --icon-message: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3Cpath d='M8 9h8'/%3E%3Cpath d='M8 13h5'/%3E%3C/svg%3E");
  --icon-route: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='6' cy='19' r='3'/%3E%3Cpath d='M9 19h8.5a3.5 3.5 0 0 0 0-7h-11a3.5 3.5 0 0 1 0-7H15'/%3E%3Ccircle cx='18' cy='5' r='3'/%3E%3C/svg%3E");
  --icon-book: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 7v14'/%3E%3Cpath d='M3 18a1 1 0 0 1-1-1V4a1 1 0 0 1 1-1h5a4 4 0 0 1 4 4 4 4 0 0 1 4-4h5a1 1 0 0 1 1 1v13a1 1 0 0 1-1 1h-6a3 3 0 0 0-3 3 3 3 0 0 0-3-3z'/%3E%3C/svg%3E");
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
* {
  box-sizing: border-box;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  overflow: auto;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 16rem),
    linear-gradient(135deg, #090b0f, var(--bg) 42%, #11161c);
}

body[data-reader-character] {
  --accent: var(--character-accent);
  --accent-strong: var(--character-accent-strong);
  --character-glow: rgba(var(--character-accent-rgb), 0.28);
  --character-soft-line: rgba(var(--character-accent-rgb), 0.32);
  --character-control-bg:
    linear-gradient(135deg, rgba(var(--character-accent-rgb), 0.12), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), transparent),
    rgba(16, 20, 26, 0.94);
  background:
    linear-gradient(180deg, rgba(var(--character-accent-rgb), 0.055), transparent 16rem),
    linear-gradient(135deg, #090b0f, var(--bg) 42%, var(--character-bg-end));
}

body[data-reader-character="pierrePaul"] {
  --character-accent: #d8bd78;
  --character-accent-strong: #ffe1a3;
  --character-accent-rgb: 216, 189, 120;
  --character-bg-end: #16130e;
  --character-panel-rgb: 247, 237, 214;
  --character-story-heading: #1d1810;
  --character-story-text: #41392c;
  --character-story-accent: #8c6120;
}

body[data-reader-character="ymelia"] {
  --character-accent: #5aa7d8;
  --character-accent-strong: #9bd7ff;
  --character-accent-rgb: 90, 167, 216;
  --character-bg-end: #0b1821;
  --character-panel-rgb: 226, 237, 241;
  --character-story-heading: #111c23;
  --character-story-text: #2f3b42;
  --character-story-accent: #2e718f;
}

body[data-reader-character="pitus"] {
  --character-accent: #60d5c9;
  --character-accent-strong: #ffe36e;
  --character-accent-rgb: 96, 213, 201;
  --character-bg-end: #0a1c1d;
  --character-panel-rgb: 238, 242, 224;
  --character-story-heading: #121d1c;
  --character-story-text: #33413d;
  --character-story-accent: #1b7d77;
}

body[data-reader-character="candide"] {
  --character-accent: #b9a2ff;
  --character-accent-strong: #b6efc7;
  --character-accent-rgb: 185, 162, 255;
  --character-bg-end: #151126;
  --character-panel-rgb: 238, 232, 244;
  --character-story-heading: #1b1624;
  --character-story-text: #3c3444;
  --character-story-accent: #765bb8;
}

body[data-reader-character="rael"] {
  --character-accent: #d96b59;
  --character-accent-strong: #ff9d57;
  --character-accent-rgb: 217, 107, 89;
  --character-bg-end: #1d0f0d;
  --character-panel-rgb: 242, 229, 218;
  --character-story-heading: #211411;
  --character-story-text: #49342d;
  --character-story-accent: #9a3d32;
}

body[data-reader-character="gedeon"] {
  --character-accent: #829bb6;
  --character-accent-strong: #c7d3df;
  --character-accent-rgb: 130, 155, 182;
  --character-bg-end: #111820;
  --character-panel-rgb: 232, 235, 229;
  --character-story-heading: #151b20;
  --character-story-text: #343d42;
  --character-story-accent: #50667d;
}

body[data-reader-character] .brand-mark,
body[data-reader-character] .chapter-select-icon,
body[data-reader-character] .reading-mode-visual,
body[data-reader-character] .route-map-icon,
body[data-reader-character] .codex-toggle-icon {
  color: var(--accent-strong);
}

body[data-reader-character] .brand-mark,
body[data-reader-character] .chapter-select-icon,
body[data-reader-character] .reading-mode-visual,
body[data-reader-character] .route-map-icon {
  border-color: rgba(var(--character-accent-rgb), 0.58);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.09), transparent 48%),
    rgba(var(--character-accent-rgb), 0.13);
}

body[data-reader-character] .brand-mark {
  background:
    linear-gradient(135deg, transparent 45%, var(--accent) 46% 54%, transparent 55%),
    rgba(var(--character-accent-rgb), 0.12);
}

body[data-reader-character] .chapter-select-button,
body[data-reader-character] .reading-mode-switch,
body[data-reader-character] .route-map-toggle,
body[data-reader-character] .codex-toggle {
  border-color: rgba(var(--character-accent-rgb), 0.18);
  background: var(--character-control-bg);
  box-shadow:
    0 0.9rem 2rem rgba(0, 0, 0, 0.2),
    0 0 0 1px rgba(var(--character-accent-rgb), 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.055);
}

body[data-reader-character] .chapter-select-button:focus-visible,
body[data-reader-character] .chapter-jump[data-open] .chapter-select-button,
body[data-reader-character] .reading-mode-switch:focus-visible,
body[data-reader-character] .route-map-toggle:focus-visible,
body[data-reader-character] .codex-toggle:focus-visible {
  border-color: rgba(var(--character-accent-rgb), 0.78);
  box-shadow:
    0 0.9rem 2rem rgba(0, 0, 0, 0.22),
    0 0 1.2rem rgba(var(--character-accent-rgb), 0.11),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

@media (hover: hover) {
  body[data-reader-character] .chapter-select-button:hover,
  body[data-reader-character] .reading-mode-switch:hover,
  body[data-reader-character] .route-map-toggle:hover,
  body[data-reader-character] .codex-toggle:hover {
    border-color: rgba(var(--character-accent-rgb), 0.78);
    box-shadow:
      0 0.9rem 2rem rgba(0, 0, 0, 0.22),
      0 0 1.2rem rgba(var(--character-accent-rgb), 0.11),
      inset 0 1px 0 rgba(255, 255, 255, 0.06);
  }
}

body[data-reader-character] .panel-card {
  color: var(--character-story-heading);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(255, 255, 255, 0.24)),
    rgb(var(--character-panel-rgb));
  box-shadow:
    0 0.9rem 2rem rgba(0, 0, 0, 0.22),
    0 0 1.45rem rgba(var(--character-accent-rgb), 0.1),
    inset 0 0 0 1px rgba(var(--character-accent-rgb), 0.16);
}

body[data-reader-character] .panel-card::before,
body[data-reader-character] .panel-card::after {
  background: rgb(var(--character-panel-rgb));
}

body[data-reader-character] .panel-card h2 {
  color: var(--character-story-heading);
}

body[data-reader-character] .panel-card .eyebrow {
  color: var(--character-story-accent);
}

body[data-reader-character] .story-text p {
  color: var(--character-story-text);
}

body[data-reader-character] .thumb-button[aria-current="true"] {
  box-shadow:
    0 0 0 2px rgba(var(--character-accent-rgb), 0.9),
    0 0 1rem rgba(var(--character-accent-rgb), 0.22);
}

body[data-reader-character] .route-map-filter-button[data-active],
body[data-reader-character] .chapter-option[aria-selected="true"] {
  background: rgba(var(--character-accent-rgb), 0.15);
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

/* ============================================================
   GRAIN DE PAPIER
   ============================================================ */
.paper-grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.3) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.2) 1px, transparent 1px);
  background-size: 22px 22px;
}

/* ============================================================
   EN-TETE / BRAND
   ============================================================ */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: inherit;
  text-decoration: none;
}

.brand strong,
.brand small {
  display: block;
}

.brand-copy {
  display: grid;
  gap: 0.08rem;
  min-width: 0;
}

.brand-main {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  min-width: 0;
}

.brand strong {
  flex: 0 0 auto;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}

.brand small {
  margin-top: 0.08rem;
  color: var(--muted);
  font-size: 0.68rem;
}

.brand-mark {
  width: 1.65rem;
  aspect-ratio: 1;
  border: 1px solid rgba(226, 180, 93, 0.85);
  border-radius: 8px;
  background:
    linear-gradient(135deg, transparent 45%, var(--accent) 46% 54%, transparent 55%),
    rgba(226, 180, 93, 0.1);
}