@import url('./assets/fonts/fonts.css');

/* --- RESET & VARIABLES --- */
:root {
  /* Palette GeoStratum extraite du SVG */
  --brand-teal: #0f8994;
  /* st0 : Cyan géologique */
  --brand-teal-dark: #016e74;
  /* st2 : Profondeur */
  --brand-orange: #ff6914;
  /* st13 : Énergie/Magma */
  --brand-orange-light: #fea42d;
  /* st1 : Sédiment */
  --brand-dark: #26363e;
  /* Roche / Schiste */

  /* Thème UI */
  --bg: #f4f8fb;
  --panel: rgba(255, 255, 255, 0.86);
  --line: #d8e5ec;
  --text: #17232b;
  --muted: #536576;
  --rock: #4f5f69;

  /* Mapping sémantique */
  --accent: var(--brand-teal);
  --accent-hover: var(--brand-teal-dark);
  --danger: var(--brand-orange);

  --font-sans: 'Space Grotesk', 'Noto Sans', 'Liberation Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Noto Sans Mono', 'Liberation Mono', monospace;
  --radius: 14px;
  --header-height: clamp(64px, 7vh, 84px);
  --layout-max: 90rem;
  --layout-gutter: clamp(0.6rem, 2.4vw, 2.6rem);
  --panel-space: clamp(2.4rem, 4vw, 4.2rem);

  /* Ombres & Profondeur pour un look Pro */
  --shadow-sm: 0 10px 20px rgba(10, 40, 60, 0.08);
  --shadow-md: 0 16px 36px rgba(10, 40, 60, 0.12);
  --shadow-lg: 0 28px 56px rgba(10, 40, 60, 0.2);
}

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

/* ACCESSIBILITÉ : Focus visible pour navigation clavier */
:focus-visible {
  outline: 3px solid var(--brand-teal);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -80px;
  z-index: 2100;
  background: #ffffff;
  color: #0d2430;
  border: 2px solid var(--brand-teal-dark);
  border-radius: 10px;
  padding: 0.65rem 0.9rem;
  font-weight: 700;
  line-height: 1;
  box-shadow: var(--shadow-sm);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0.8rem;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 10% -15%, rgba(15, 137, 148, 0.2), transparent 45%),
    radial-gradient(circle at 95% 5%, rgba(255, 105, 20, 0.14), transparent 30%),
    repeating-radial-gradient(circle at 20% 25%, rgba(38, 54, 62, 0.08) 0 1px, transparent 1px 18px),
    linear-gradient(to right, rgba(79, 95, 105, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(79, 95, 105, 0.08) 1px, transparent 1px);
  background-size: auto, auto, 130px 130px, 88px 88px, 88px 88px;
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* --- TYPOGRAPHIC ALIGNMENT --- */
.showcase-info>p,
.signal-head>p,
.signal-card p,
.feature-card p,
.detail-intro,
.detail-list li,
.detail-closing,
.policy-content p,
.policy-list-item,
.guide-container p,
.guide-container li,
.guide-hero p {
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
  word-break: break-word;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

/* --- ANIMATIONS --- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.5, 0, 0, 1), transform 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsiveness */
@media (max-width: 64rem) {
  .showcase-card {
    grid-template-columns: 1fr;
  }

  .showcase-visual {
    display: none;
    /* Hide abstract visual on mobile to save space */
  }

  .signal-grid {
    grid-template-columns: 1fr;
  }

  .signal-media-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .panel:not(.hero-modern):not(.hero):not(.cta-panel):not(.signal-section):not(.accent-panel):not(.policy-shell) {
    padding: 1.5rem;
  }

  .hero {
    padding: 1.9rem;
  }

  .hero-modern h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 48rem) {
  :root {
    --header-height: 102px;
  }

  .page-shell {
    padding-top: 110px !important; /* Offset for the 101px sticky header on mobile */
  }
}

/* --- UTILITY CLASSES FOR CSP COMPLIANCE --- */
.mt-2 { margin-top: 2rem !important; }
.flex-gap-1 { display: flex; gap: 1rem; align-items: center; }
.text-muted-half { color: var(--muted); opacity: 0.5; }
.w-full-img { width: 100%; height: 100%; object-fit: cover; }

/* =============================================
   21-PASS ENGINE SECTION (lithotheque page)
   ============================================= */

.engine-section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(6px);
}

.engine-section::before {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 4px;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--brand-teal-dark), var(--brand-teal) 40%, var(--brand-orange));
}

.engine-section h2 {
  margin: 0.5rem 0 1rem;
}

/* 2-column layout: photo left, breakdown right */
.engine-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 2.5rem;
  align-items: start;
  margin: 2rem 0 1.5rem;
}

/* Rock photo — sticky while scrolling breakdown */
.engine-photo {
  position: sticky;
  top: calc(var(--header-height) + 1.5rem);
}

/* Scanner Container */
.photo-scanner-container {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
  /* Force rounded corners on contents */
  transform: translateZ(0); 
}

.engine-photo img {
  width: 100%;
  max-height: 440px;
  border-radius: 12px;
  display: block;
  object-fit: cover;
  object-position: center 60%;
}

/* Scanner Grids Overlay */
.scanner-grid {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  opacity: 0;
  z-index: 10;
  border-radius: 12px;
}

/* 4x4 Grid */
.scanner-fine {
  background-image: 
    linear-gradient(rgba(15, 137, 148, 0.4) 2px, transparent 2px),
    linear-gradient(90deg, rgba(15, 137, 148, 0.4) 2px, transparent 2px);
  background-size: 25% 25%;
  animation: scanPhase1 8s infinite;
}

/* 2x2 Grid */
.scanner-medium {
  background-image: 
    linear-gradient(rgba(254, 164, 45, 0.5) 4px, transparent 4px),
    linear-gradient(90deg, rgba(254, 164, 45, 0.5) 4px, transparent 4px);
  background-size: 50% 50%;
  animation: scanPhase2 8s infinite;
}

/* 1x1 Grid (Border) */
.scanner-global {
  border: 6px solid rgba(255, 105, 20, 0.8);
  box-shadow: inset 0 0 40px rgba(255, 105, 20, 0.3);
  animation: scanPhase3 8s infinite;
}

/* Result Overlay */
.scanner-result {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  z-index: 20;
  border-radius: 12px;
  animation: scanPhaseResult 8s infinite;
}

.result-badge {
  background: var(--brand-teal);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.2);
  transform: scale(0.8);
  animation: badgePop 8s infinite;
}

/* Keyframes for the sequence */
@keyframes scanPhase1 {
  0%, 25% { opacity: 0; }
  2%, 23% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes scanPhase2 {
  0%, 100% { opacity: 0; }
  25%, 50% { opacity: 0; }
  27%, 48% { opacity: 1; }
}

@keyframes scanPhase3 {
  0%, 100% { opacity: 0; }
  50%, 75% { opacity: 0; }
  52%, 73% { opacity: 1; }
}

@keyframes scanPhaseResult {
  0%, 100% { opacity: 0; }
  75% { opacity: 0; }
  77%, 98% { opacity: 1; }
}

@keyframes badgePop {
  0%, 100% { transform: scale(0.8); }
  75% { transform: scale(0.8); }
  77%, 98% { transform: scale(1); }
}

.engine-photo figcaption {
  margin-top: 0.6rem;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
  font-style: italic;
}

/* Breakdown column */
.engine-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* Pass tier cards */
.pass-tier {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  background: white;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pass-tier:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.pass-tier--fine   { border-left: 4px solid var(--brand-teal); }
.pass-tier--medium { border-left: 4px solid #fea42d; }
.pass-tier--global { border-left: 4px solid var(--brand-orange); }

/* Hover synchronization state */
.pass-tier.is-hovered {
  border-left-width: 8px;
  background: rgba(15, 137, 148, 0.04);
  transform: translateX(8px);
}

:root.theme-dark .pass-tier.is-hovered {
  background: rgba(15, 137, 148, 0.12);
}

.scanner-grid.is-active {
  opacity: 1 !important;
  animation: none !important;
  z-index: 15;
}

.scanner-global.is-active {
  box-shadow: inset 0 0 60px rgba(255, 105, 20, 0.5), 0 0 20px rgba(255, 105, 20, 0.4);
}

.pass-tier-label {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex: 1;
  min-width: 0;
}

.pass-count {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--brand-teal);
  font-family: var(--font-mono);
  min-width: 2.4rem;
  text-align: center;
  flex-shrink: 0;
}

.pass-tier--medium .pass-count { color: #fea42d; }
.pass-tier--global .pass-count { color: var(--brand-orange); }

.pass-tier-label strong {
  display: block;
  font-size: 0.88rem;
  color: var(--text);
  margin-bottom: 0.1rem;
}

.pass-tier-label p {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
}

/* Tiling grids (visual squares) with animations */
.pass-grid {
  display: grid;
  gap: 2px;
  flex-shrink: 0;
}

.pass-grid span {
  border-radius: 2px;
  background: rgba(15, 137, 148, 0.08);
  border: 1px solid rgba(15, 137, 148, 0.2);
  animation: scanPulseTeal 2.4s ease-in-out infinite;
  animation-delay: calc(var(--d, 0) * 120ms);
}

@keyframes scanPulseTeal {
  0%, 60%, 100% {
    background: rgba(15, 137, 148, 0.08);
    border-color: rgba(15, 137, 148, 0.2);
    box-shadow: none;
  }
  30% {
    background: rgba(15, 137, 148, 0.55);
    border-color: rgba(15, 137, 148, 0.9);
    box-shadow: 0 0 6px rgba(15, 137, 148, 0.5);
  }
}

.pass-grid--4x4 { grid-template-columns: repeat(4, 12px); grid-template-rows: repeat(4, 12px); }
.pass-grid--4x4 span { width: 12px; height: 12px; }

.pass-grid--4x4 span:nth-child(1)  { --d: 0; }
.pass-grid--4x4 span:nth-child(2)  { --d: 1; }
.pass-grid--4x4 span:nth-child(3)  { --d: 2; }
.pass-grid--4x4 span:nth-child(4)  { --d: 3; }
.pass-grid--4x4 span:nth-child(5)  { --d: 4; }
.pass-grid--4x4 span:nth-child(6)  { --d: 5; }
.pass-grid--4x4 span:nth-child(7)  { --d: 6; }
.pass-grid--4x4 span:nth-child(8)  { --d: 7; }
.pass-grid--4x4 span:nth-child(9)  { --d: 8; }
.pass-grid--4x4 span:nth-child(10) { --d: 9; }
.pass-grid--4x4 span:nth-child(11) { --d: 10; }
.pass-grid--4x4 span:nth-child(12) { --d: 11; }
.pass-grid--4x4 span:nth-child(13) { --d: 12; }
.pass-grid--4x4 span:nth-child(14) { --d: 13; }
.pass-grid--4x4 span:nth-child(15) { --d: 14; }
.pass-grid--4x4 span:nth-child(16) { --d: 15; }

.pass-grid--2x2 { grid-template-columns: repeat(2, 18px); grid-template-rows: repeat(2, 18px); }
.pass-grid--2x2 span {
  width: 18px; height: 18px;
  animation: scanPulseAmber 2.4s ease-in-out infinite;
  animation-delay: calc(var(--d, 0) * 250ms + 400ms);
}
.pass-grid--2x2 span:nth-child(1) { --d: 0; }
.pass-grid--2x2 span:nth-child(2) { --d: 1; }
.pass-grid--2x2 span:nth-child(3) { --d: 2; }
.pass-grid--2x2 span:nth-child(4) { --d: 3; }

@keyframes scanPulseAmber {
  0%, 60%, 100% {
    background: rgba(254,164,45,0.1);
    border-color: rgba(254,164,45,0.25);
    box-shadow: none;
  }
  30% {
    background: rgba(254,164,45,0.6);
    border-color: rgba(254,164,45,1);
    box-shadow: 0 0 8px rgba(254,164,45,0.55);
  }
}

.pass-grid--1x1 { grid-template-columns: 38px; grid-template-rows: 38px; }
.pass-grid--1x1 span {
  width: 38px; height: 38px;
  animation: scanPulseOrange 2.4s ease-in-out infinite;
  animation-delay: 900ms;
}

@keyframes scanPulseOrange {
  0%, 60%, 100% {
    background: rgba(255,105,20,0.08);
    border-color: rgba(255,105,20,0.25);
    box-shadow: none;
  }
  30% {
    background: rgba(255,105,20,0.55);
    border-color: rgba(255,105,20,1);
    box-shadow: 0 0 10px rgba(255,105,20,0.5);
  }
}

/* Aggregation result row */
.engine-result {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: linear-gradient(90deg, rgba(15,137,148,0.08), transparent);
  border: 1px dashed rgba(15,137,148,0.35);
  border-radius: 8px;
  padding: 0.8rem 1.1rem;
  color: var(--brand-teal-dark);
  font-size: 0.85rem;
  font-weight: 600;
  animation: resultPulse 2.4s ease-in-out infinite;
  animation-delay: 1.2s;
}

@keyframes resultPulse {
  0%, 50%, 100% { opacity: 0.65; }
  75% { opacity: 1; border-color: rgba(15,137,148,0.7); }
}

.engine-result svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  stroke: var(--brand-teal);
  animation: spinOnce 2.4s ease-in-out infinite;
  animation-delay: 1.2s;
}

@keyframes spinOnce {
  0%, 50%, 100% { transform: rotate(0deg); }
  75% { transform: rotate(180deg); }
}

/* Stats row */
.engine-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}

.engine-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.25rem;
}

.engine-stat-value {
  font-size: clamp(1.5rem, 2.2vw, 2rem);
  font-weight: 800;
  color: var(--brand-teal);
  font-family: var(--font-mono);
  line-height: 1;
  letter-spacing: -0.02em;
}

.engine-stat-unit {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  margin-left: 2px;
}

.engine-stat-label {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Responsive */
@media (max-width: 900px) {
  .engine-layout {
    grid-template-columns: 1fr;
  }
  .engine-photo {
    position: static;
  }
  .engine-photo img {
    max-height: 300px;
  }
  .engine-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .engine-stats { grid-template-columns: repeat(2, 1fr); }
  .pass-tier { flex-wrap: wrap; }
}

/* Respect prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .pass-grid span,
  .engine-result,
  .engine-result svg {
    animation: none;
    opacity: 1;
  }
  .pass-grid span { background: rgba(15,137,148,0.12); border-color: rgba(15,137,148,0.3); }
  .pass-grid--2x2 span { background: rgba(254,164,45,0.15); border-color: rgba(254,164,45,0.35); }
  .pass-grid--1x1 span { background: rgba(255,105,20,0.12); border-color: rgba(255,105,20,0.3); }
}