/* index.html — hero v3 (glitch + parallaxe), stats éditoriales, étapes de jeu */

/* ════════ HERO ════════ */
.hero-v3 {
  position: relative;
  z-index: 10;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 50% 25%, rgba(139, 0, 0, 0.18), transparent 55%),
    url('../../images/hero-bg.svg') center/cover no-repeat,
    #050505;
}

/* Cartes flottantes en arrière-plan */
.hero-cards {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-card-float {
  position: absolute;
  width: clamp(90px, 11vw, 170px);
  aspect-ratio: 5 / 7.4;
  object-fit: cover;
  opacity: 0;
  filter: brightness(0.5) saturate(0.85) blur(1px);
  border: 1px solid rgba(139, 0, 0, 0.4);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
  transform: rotate(var(--fr, 0deg)) scale(var(--fs, 1));
  animation: float-card-in 1.4s ease forwards, float-card-drift 9s 1.4s ease-in-out infinite alternate;
  transition: translate 0.25s ease-out;
}

@keyframes float-card-in {
  from { opacity: 0; transform: rotate(var(--fr)) scale(calc(var(--fs) * 0.8)) translateY(60px); }
  to   { opacity: 1; transform: rotate(var(--fr)) scale(var(--fs)) translateY(0); }
}

@keyframes float-card-drift {
  from { transform: rotate(var(--fr)) scale(var(--fs)) translateY(0); }
  to   { transform: rotate(calc(var(--fr) + 3deg)) scale(var(--fs)) translateY(-22px); }
}

.hero-v3-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
  padding: 2rem;
}

.hero-v3-content > * {
  opacity: 0;
  animation: hero-up 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-v3-content > .hero-v3-kicker { animation-delay: 0.1s; }
.hero-v3-content > .glitch         { animation-delay: 0.25s; }
.hero-v3-content > .hero-v3-tag    { animation-delay: 0.55s; }
.hero-v3-content > .hero-v3-desc   { animation-delay: 0.75s; }
.hero-v3-content > .hero-v3-cta    { animation-delay: 0.95s; }

@keyframes hero-up {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-v3-kicker {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.hero-v3-kicker::before,
.hero-v3-kicker::after {
  content: '—';
  color: var(--crimson);
  margin: 0 0.9rem;
}

/* Titre glitché */
.glitch {
  position: relative;
  font-family: var(--font-display);
  font-size: clamp(5rem, 19vw, 13rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: 0.12em;
  color: var(--crimson);
  text-shadow: 0 0 45px rgba(193, 18, 31, 0.5);
  margin: 1rem 0 0.5rem;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  opacity: 0.75;
  pointer-events: none;
}

.glitch::before {
  color: #2dd4dd;
  z-index: -1;
  animation: glitch-shift-a 3.2s steps(1) infinite;
}

.glitch::after {
  color: var(--crimson-bright);
  z-index: -2;
  animation: glitch-shift-b 2.7s steps(1) infinite;
}

@keyframes glitch-shift-a {
  0%, 86%, 100% { transform: none; clip-path: none; opacity: 0; }
  87% { transform: translate(-6px, 3px); clip-path: inset(12% 0 60% 0); opacity: 0.7; }
  89% { transform: translate(5px, -2px); clip-path: inset(55% 0 18% 0); opacity: 0.7; }
  91% { transform: translate(-3px, 1px); clip-path: inset(78% 0 5% 0); opacity: 0.6; }
  93% { transform: none; clip-path: none; opacity: 0; }
}

@keyframes glitch-shift-b {
  0%, 78%, 100% { transform: none; clip-path: none; opacity: 0; }
  79% { transform: translate(7px, -4px); clip-path: inset(30% 0 40% 0); opacity: 0.8; }
  81% { transform: translate(-5px, 2px); clip-path: inset(5% 0 80% 0); opacity: 0.8; }
  83% { transform: translate(3px, 3px); clip-path: inset(65% 0 12% 0); opacity: 0.65; }
  85% { transform: none; clip-path: none; opacity: 0; }
}

.hero-v3-tag {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.6vw, 1.6rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
}

.hero-v3-tag em {
  font-style: normal;
  color: var(--crimson-bright);
}

.hero-v3-desc {
  font-size: clamp(1rem, 1.9vw, 1.2rem);
  color: var(--text-dim);
  max-width: 600px;
  margin: 1.4rem auto 0;
  line-height: 1.8;
}

.hero-v3-cta {
  display: flex;
  gap: 1.4rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.6rem;
}

/* Indicateur de scroll */
.hero-v3-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 28px;
  height: 48px;
  border: 1px solid rgba(237, 230, 216, 0.3);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  opacity: 0;
  animation: hero-up 0.9s 1.4s ease forwards;
}

.hero-v3-scroll span {
  width: 4px;
  height: 9px;
  background: var(--crimson-bright);
  border-radius: 2px;
  animation: scroll-hint 1.8s ease-in-out infinite;
}

@keyframes scroll-hint {
  0%   { transform: translateY(0); opacity: 1; }
  70%  { transform: translateY(16px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ════════ STATS ════════ */
.stats-band {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4rem) var(--spacing-md);
}

.stat {
  text-align: center;
  padding: 1rem;
  border-left: 1px solid var(--hairline);
}

.stat:first-child { border-left: none; }

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(237, 230, 216, 0.6);
  transition: color 0.4s ease, -webkit-text-stroke-color 0.4s ease, text-shadow 0.4s ease;
}

.stat:hover .stat-number {
  color: var(--crimson);
  -webkit-text-stroke-color: transparent;
  text-shadow: 0 0 40px rgba(193, 18, 31, 0.5);
}

.stat-label {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-dim);
}

@media (max-width: 700px) {
  .stats-band { grid-template-columns: repeat(2, 1fr); row-gap: 2rem; }
  .stat:nth-child(3) { border-left: none; }
}

/* ════════ ÉTAPES ════════ */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.step {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--hairline);
  padding: 2.4rem 1.8rem 2rem;
  overflow: hidden;
  transition: border-color var(--transition-fast), transform var(--transition-normal), box-shadow var(--transition-normal);
}

.step:hover {
  border-color: var(--line);
  transform: translateY(-6px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.55);
}

.step::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--crimson), transparent 70%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.step:hover::after { transform: scaleX(1); }

.step-num {
  position: absolute;
  top: 0.6rem;
  right: 1rem;
  font-family: var(--font-display);
  font-size: 4.4rem;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(139, 0, 0, 0.5);
  transition: -webkit-text-stroke-color var(--transition-fast);
}

.step:hover .step-num { -webkit-text-stroke-color: var(--crimson); }

.step h3 {
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  margin-bottom: 0.9rem;
  max-width: 80%;
}

.step p {
  color: var(--text-dim);
  font-size: 0.98rem;
}

.steps-more {
  text-align: center;
  margin-top: var(--spacing-lg);
}

/* ════════ Responsive hero ════════ */
@media (max-width: 768px) {
  .hero-v3 { min-height: calc(100svh - 64px); }
  .hero-card-float { display: none; }
  .hero-v3-cta { flex-direction: column; align-items: stretch; }
  .hero-v3-scroll { display: none; }
}

/* ════════ RIVIÈRES DE CARTES ════════ */
.card-rivers {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  padding: 0.5rem 0;
  overflow: hidden;
}

.card-river {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}

.card-river-track {
  display: flex;
  width: max-content;
  padding: 0.8rem 0;
  animation: river-flow 65s linear infinite;
}

.card-river--reverse .card-river-track {
  animation-direction: reverse;
  animation-duration: 80s;
}

.card-river:hover .card-river-track {
  animation-play-state: paused;
}

@keyframes river-flow {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.river-card {
  position: relative;
  flex: 0 0 auto;
  width: clamp(130px, 14vw, 190px);
  aspect-ratio: 5 / 7.4;
  margin-right: 1.4rem;
  overflow: hidden;
  background: var(--ink);
  border: 1px solid var(--hairline);
  text-decoration: none;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
              border-color var(--transition-fast),
              box-shadow 0.3s ease;
}

.river-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.75) brightness(0.82);
  transition: filter 0.3s ease, transform 0.3s ease;
}

.river-card:hover {
  transform: translateY(-10px) scale(1.06) rotate(-1.5deg);
  border-color: var(--line);
  box-shadow: 0 25px 55px rgba(139, 0, 0, 0.45);
  z-index: 5;
}

.river-card:hover img {
  filter: none;
  transform: scale(1.06);
}

.river-card-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.4rem 0.6rem 0.55rem;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text);
  background: linear-gradient(transparent, rgba(4, 4, 4, 0.95) 50%);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.river-card:hover .river-card-name {
  opacity: 1;
  transform: translateY(0);
}

/* En mouvement réduit, la rivière devient une grille statique scrollable */
@media (prefers-reduced-motion: reduce) {
  .card-river { overflow-x: auto; }
  .card-river-track { animation: none; }
}