/* ═══════════════════════════════════════════════════════════
   CODEX · FRAGMENTS — Style couverture
   Palette : noir-vert abyssal · cyan électrique · blanc
   Typographie : Space Grotesk (display tech) + JetBrains Mono (corps)
   Mobile-first · Dark mode par défaut
═══════════════════════════════════════════════════════════ */

/* ──────────────────── DESIGN TOKENS ──────────────────── */
:root {
  --font-display: 'Space Grotesk', 'Helvetica Neue', sans-serif;
  --font-body:    'Source Serif 4', 'Georgia', serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3.5rem,   1rem    + 7vw,    7.5rem);

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --content-narrow:  680px;
  --content-default: 1040px;

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ──────────────────── PALETTE NUIT (dark default) ──────────────────── */
:root,
[data-theme='dark'] {
  /* Fonds — noir avec sous-teinte verte comme la couverture */
  --color-bg:            #090d09;
  --color-surface:       #0d120d;
  --color-surface-2:     #111811;
  --color-surface-card:  #141c14;
  --color-border:        #1e2b1e;
  --color-divider:       #172017;

  /* Texte */
  --color-text:          #e8f0e8;
  --color-text-muted:    #7a9a7a;
  --color-text-faint:    #3a4f3a;

  /* Cyan électrique — accent unique, tiré de la couverture */
  --color-accent:        #00e5d4;
  --color-accent-hover:  #40ffee;
  --color-accent-dim:    #00b5a8;
  --color-accent-glow:   rgba(0, 229, 212, 0.15);
  --color-accent-glow-strong: rgba(0, 229, 212, 0.3);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.5);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.6);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.7);
  --shadow-cyan: 0 0 20px rgba(0, 229, 212, 0.25);
  --shadow-cyan-strong: 0 0 40px rgba(0, 229, 212, 0.4);
}

/* ──────────────────── PALETTE JOUR ──────────────────── */
[data-theme='light'] {
  --color-bg:            #f0f5f0;
  --color-surface:       #e8f0e8;
  --color-surface-2:     #f5f8f5;
  --color-surface-card:  #e0ebe0;
  --color-border:        #b8cfb8;
  --color-divider:       #ccdacc;

  --color-text:          #0a150a;
  --color-text-muted:    #3d5c3d;
  --color-text-faint:    #8aaa8a;

  --color-accent:        #007a70;
  --color-accent-hover:  #005a52;
  --color-accent-dim:    #009a8e;
  --color-accent-glow:   rgba(0, 122, 112, 0.12);
  --color-accent-glow-strong: rgba(0, 122, 112, 0.25);

  --shadow-sm: 0 1px 3px rgba(10,30,10,0.1);
  --shadow-md: 0 4px 20px rgba(10,30,10,0.12);
  --shadow-lg: 0 12px 48px rgba(10,30,10,0.15);
  --shadow-cyan: 0 0 20px rgba(0, 122, 112, 0.15);
  --shadow-cyan-strong: 0 0 40px rgba(0, 122, 112, 0.25);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:            #f0f5f0;
    --color-surface:       #e8f0e8;
    --color-surface-2:     #f5f8f5;
    --color-surface-card:  #e0ebe0;
    --color-border:        #b8cfb8;
    --color-divider:       #ccdacc;
    --color-text:          #0a150a;
    --color-text-muted:    #3d5c3d;
    --color-text-faint:    #8aaa8a;
    --color-accent:        #007a70;
    --color-accent-hover:  #005a52;
    --color-accent-dim:    #009a8e;
    --color-accent-glow:   rgba(0, 122, 112, 0.12);
    --color-accent-glow-strong: rgba(0, 122, 112, 0.25);
    --shadow-cyan: 0 0 20px rgba(0, 122, 112, 0.15);
    --shadow-cyan-strong: 0 0 40px rgba(0, 122, 112, 0.25);
  }
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

img, svg { display: block; max-width: 100%; }
ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.1; }
p, li { text-wrap: pretty; }
button { cursor: pointer; background: none; border: none; }

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-hover); }
a:focus-visible {
  outline: 1px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection {
  background: var(--color-accent-glow-strong);
  color: var(--color-accent);
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border-width: 0;
}

/* ──────────────────── CONTENEURS ──────────────────── */
.container-narrow {
  width: 100%;
  max-width: var(--content-narrow);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container-default {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

/* ──────────────────── BOUTONS ──────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #090d09;
  box-shadow: var(--shadow-cyan);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: #090d09;
  box-shadow: var(--shadow-cyan-strong);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}
.btn-ghost:hover {
  background: var(--color-accent-glow);
  color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: var(--shadow-cyan);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-form {
  width: 100%;
  justify-content: center;
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* ──────────────────── HEADER ──────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(9, 13, 9, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

[data-theme='light'] .site-header {
  background: rgba(240, 245, 240, 0.92);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  max-width: var(--content-default);
  margin-inline: auto;
  padding: var(--space-4) var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}
.logo svg { color: var(--color-accent); }
.logo:hover { opacity: 0.85; color: var(--color-text); }

.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
}
.logo-text em {
  font-style: normal;
  color: var(--color-accent);
  margin-left: 0.15em;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.site-nav {
  display: none;
  gap: var(--space-6);
  margin-left: auto;
}
@media (min-width: 600px) {
  .site-nav { display: flex; }
}

.site-nav a {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.site-nav a:hover { color: var(--color-accent); }

.theme-toggle {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-cyan);
}
@media (min-width: 600px) {
  .theme-toggle { margin-left: 0; }
}

/* ──────────────────── HERO ──────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg);
}

/* Fond radial cyan — comme la lumière émanant de la clé USB */
.hero-noise {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 70%, rgba(0, 229, 212, 0.07) 0%, transparent 65%),
    radial-gradient(ellipse 40% 30% at 30% 80%, rgba(0, 229, 212, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 70% 80%, rgba(0, 229, 212, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

/* Tendrilles électriques SVG en fond */
.hero-tendrils {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-20) var(--space-6);
  max-width: 860px;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-8);
  opacity: 0.8;
}

/* ── TITRE GLITCH ── */
.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  line-height: 1;
  margin-bottom: var(--space-3);
  position: relative;
}

/* Effet glitch sur le mot CODEX */
.glitch {
  position: relative;
  display: inline-block;
  color: var(--color-accent);
  text-shadow:
    0 0 10px var(--color-accent),
    0 0 30px rgba(0, 229, 212, 0.4);
}

@media (prefers-reduced-motion: no-preference) {
  .glitch::before,
  .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
  }
  .glitch::before {
    color: #ff003c;
    animation: glitch-r 4s infinite;
    clip-path: polygon(0 30%, 100% 30%, 100% 50%, 0 50%);
    transform: translateX(-2px);
  }
  .glitch::after {
    color: #00ffff;
    animation: glitch-b 4s infinite;
    clip-path: polygon(0 55%, 100% 55%, 100% 75%, 0 75%);
    transform: translateX(2px);
  }
}

@keyframes glitch-r {
  0%, 90%, 100% { opacity: 0; }
  91% { opacity: 0.8; transform: translateX(-3px) skewX(-5deg); }
  93% { opacity: 0; }
  95% { opacity: 0.6; transform: translateX(2px); }
  97% { opacity: 0; }
}
@keyframes glitch-b {
  0%, 88%, 100% { opacity: 0; }
  89% { opacity: 0.7; transform: translateX(3px) skewX(5deg); }
  91% { opacity: 0; }
  94% { opacity: 0.5; transform: translateX(-1px); }
  96% { opacity: 0; }
}

.hero-title-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.8rem);
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: var(--space-3);
}
/* Les crochets en cyan */
.hero-title-sub .bracket {
  color: var(--color-accent);
  font-weight: 700;
}

/* Ligne séparatrice style scan */
.hero-divider {
  width: 80px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  margin: var(--space-8) auto;
  box-shadow: 0 0 8px var(--color-accent);
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  font-weight: 300;
  font-style: italic;
  line-height: 1.65;
  margin-bottom: var(--space-10);
}

.br-desktop { display: none; }
@media (min-width: 640px) { .br-desktop { display: block; } }

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}
@media (min-width: 480px) {
  .hero-actions { flex-direction: row; justify-content: center; }
}

.hero-license {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.08em;
}
.hero-license a {
  color: var(--color-text-faint);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.hero-license a:hover { color: var(--color-text-muted); }

.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
}
.hero-scroll-hint span {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
  margin: 0 auto;
  box-shadow: 0 0 6px var(--color-accent);
  animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
  0%, 100% { opacity: 0.2; transform: scaleY(0.5); transform-origin: top; }
  50%       { opacity: 1;   transform: scaleY(1);   transform-origin: top; }
}

/* ──────────────────── SECTIONS ──────────────────── */
.section {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}

.section-eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  opacity: 0.8;
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.section-intro {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  font-weight: 300;
  font-style: italic;
  max-width: 60ch;
  margin-bottom: var(--space-12);
  line-height: 1.7;
}

/* Ligne décorative sous les titres de section */
.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  margin-top: var(--space-4);
}

/* ──────────────────── EXTRAIT ──────────────────── */
.section-extract {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

/* Halo de fond */
.section-extract::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -10%;
  width: 60%;
  height: 80%;
  transform: translateY(-50%);
  background: radial-gradient(ellipse, rgba(0,229,212,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.extract-block {
  margin-top: var(--space-10);
}

.extract-text {
  border-left: 1px solid var(--color-accent);
  padding-left: var(--space-8);
  box-shadow: -4px 0 12px rgba(0, 229, 212, 0.1);
}

.extract-text p {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  max-width: 65ch;
}
.extract-text p:last-child { margin-bottom: 0; }
.extract-text em {
  font-style: italic;
  color: var(--color-text);
}

/* Horodatage style terminal */
.extract-timestamp {
  font-family: var(--font-mono) !important;
  font-size: var(--text-xs) !important;
  letter-spacing: 0.15em;
  color: var(--color-accent) !important;
  opacity: 0.7;
  margin-bottom: var(--space-4) !important;
  max-width: none !important;
  text-transform: uppercase;
}

/* Message signal */
.extract-signal {
  font-family: var(--font-mono) !important;
  font-size: var(--text-sm) !important;
  color: var(--color-accent) !important;
  background: rgba(0, 229, 212, 0.05);
  border: 1px solid rgba(0, 229, 212, 0.2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  letter-spacing: 0.06em;
  max-width: none !important;
  box-shadow: 0 0 8px rgba(0, 229, 212, 0.1);
}

.extract-footer {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-8);
  padding-left: var(--space-8);
}
@media (min-width: 520px) {
  .extract-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.extract-footer cite {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-style: normal;
  letter-spacing: 0.06em;
}

.extract-cta {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition), text-shadow var(--transition);
}
.extract-cta:hover {
  color: var(--color-accent-hover);
  text-shadow: 0 0 8px var(--color-accent);
}

/* ──────────────────── UNIVERS ──────────────────── */
.universe-header {
  margin-bottom: var(--space-12);
}

.universe-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 580px) {
  .universe-grid { grid-template-columns: 1fr 1fr; }
}

.universe-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

/* Coin brillant en hover */
.universe-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.universe-card:hover::before { opacity: 1; }

.universe-card:hover {
  border-color: rgba(0, 229, 212, 0.3);
  box-shadow: 0 0 24px rgba(0, 229, 212, 0.08), var(--shadow-md);
  transform: translateY(-2px);
}

.universe-card-icon {
  width: 36px;
  height: 36px;
  margin-bottom: var(--space-5);
  color: var(--color-accent);
  filter: drop-shadow(0 0 4px var(--color-accent));
}

.universe-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.universe-card p {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: none;
}
.universe-card p em {
  font-style: normal;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* Easter egg : null-protocol link → Matrix forum */
.null-protocol-link {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--color-accent);
  text-decoration: none;
  cursor: pointer;
  border-bottom: 1px dashed rgba(0, 229, 212, 0.4);
  transition: color 0.2s ease, text-shadow 0.2s ease, border-color 0.2s ease;
  text-shadow: 0 0 6px rgba(0, 229, 212, 0.3);
}

.null-protocol-link:hover,
.null-protocol-link:focus {
  color: #fff;
  text-shadow: 0 0 10px rgba(0, 229, 212, 0.9), 0 0 20px rgba(0, 229, 212, 0.5);
  border-color: rgba(0, 229, 212, 0.9);
  outline: none;
}

/* ──────────────────── LIRE ──────────────────── */
.section-read {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.read-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.read-tome {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}
.read-tome::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
}
.read-tome--soon {
  opacity: 0.65;
  border-style: dashed;
}
.read-tome--soon::before { display: none; }

.read-tome-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.read-tome-badge {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  background: rgba(0, 229, 212, 0.1);
  color: var(--color-accent);
  border: 1px solid rgba(0, 229, 212, 0.25);
}
.read-tome-badge--soon {
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.read-tome-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text);
}
.read-tome-title em {
  font-style: italic;
  color: var(--color-text-muted);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}

.read-tome-desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: var(--space-6);
  max-width: 55ch;
}

.read-formats {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
@media (min-width: 480px) {
  .read-formats { flex-direction: row; flex-wrap: wrap; }
}

.read-format-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  background: var(--color-surface);
  transition: all var(--transition);
}
.read-format-link:hover {
  color: var(--color-accent);
  border-color: rgba(0, 229, 212, 0.4);
  box-shadow: var(--shadow-cyan);
}

.read-format-primary {
  background: var(--color-accent);
  color: #090d09;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-cyan);
}
.read-format-primary:hover {
  background: var(--color-accent-hover);
  color: #090d09;
  border-color: var(--color-accent-hover);
  box-shadow: var(--shadow-cyan-strong);
}

/* ──────────────────── LIENS DE CONTACT ──────────────────── */
.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}
@media (min-width: 520px) {
  .contact-links { flex-direction: row; flex-wrap: wrap; }
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface-card);
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.contact-link::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.contact-link:hover {
  border-color: rgba(0, 229, 212, 0.35);
  color: var(--color-accent);
  box-shadow: var(--shadow-cyan);
  transform: translateY(-1px);
}
.contact-link:hover::before { opacity: 1; }
.contact-link svg { color: var(--color-accent); flex-shrink: 0; }

.contact-link-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  margin-top: 2px;
  width: 100%;
}

/* ──────────────────── FORMULAIRE EMAIL ──────────────────── */
.section-newsletter {
  background: var(--color-bg);
}

.newsletter-form {
  margin-top: var(--space-10);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
@media (min-width: 520px) {
  .form-row { flex-direction: row; align-items: flex-end; }
  .form-field--grow { flex: 1; }
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-field label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.required-mark { color: var(--color-accent); margin-left: 2px; }

.form-field input {
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-field input::placeholder { color: var(--color-text-faint); }
.form-field input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(0, 229, 212, 0.15);
}

.form-consent { font-size: var(--text-sm); }

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  line-height: 1.6;
}
.checkbox-label input[type='checkbox'] {
  width: 16px; height: 16px;
  flex-shrink: 0; margin-top: 3px;
  accent-color: var(--color-accent);
  cursor: pointer;
}
.checkbox-label a {
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.checkbox-label a:hover { color: var(--color-accent); }

.form-message {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  display: none;
}
.form-message.success {
  display: block;
  background: rgba(0, 229, 212, 0.07);
  color: var(--color-accent);
  border: 1px solid rgba(0, 229, 212, 0.2);
}
.form-message.error {
  display: block;
  background: rgba(255, 0, 60, 0.06);
  color: #ff6080;
  border: 1px solid rgba(255, 0, 60, 0.2);
}

/* ──────────────────── FOOTER ──────────────────── */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding-block: var(--space-12);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-12);
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-accent);
}

.footer-brand-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: none;
  font-family: var(--font-body);
}
.footer-brand-text strong {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text);
  font-size: var(--text-xs);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
}
.footer-nav a {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--color-accent); }

.footer-meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: 1.6;
  letter-spacing: 0.05em;
}
.footer-meta a {
  color: var(--color-text-faint);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.footer-meta a:hover { color: var(--color-text-muted); }
.footer-copy { margin-top: var(--space-1); }

/* ──────────────────── ANIMATIONS AU SCROLL ──────────────────── */
@media (prefers-reduced-motion: no-preference) {
  .fade-up {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }
  .fade-up.visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}