:root {
  --immersive-ink: #e8ddd1;
  --immersive-accent: #ff9f5a;
  --immersive-accent-soft: #ffd6a8;
  --immersive-night: #0e2233;
  --immersive-sea: #1f4f63;
  --immersive-panel: rgba(9, 25, 37, 0.72);
  --immersive-border: rgba(255, 221, 188, 0.26);
}

.immersive-landing-page {
  margin: 0;
  color: var(--immersive-ink);
  background:
    radial-gradient(circle at 12% 15%, rgba(255, 173, 102, 0.18), transparent 32%),
    radial-gradient(circle at 84% 10%, rgba(87, 170, 207, 0.2), transparent 30%),
    linear-gradient(148deg, #07111a 0%, #102436 45%, #13344a 100%);
  background-attachment: fixed;
  font-family: Cambria, "Palatino Linotype", "Book Antiqua", serif;
}

.immersive-landing-page .container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1rem 3rem;
}

.immersive-landing-page .page-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  margin: 0 -1rem;
  padding: 0.8rem 1rem;
  backdrop-filter: blur(7px);
  background: rgba(7, 18, 28, 0.68);
  border-bottom: 1px solid rgba(255, 214, 168, 0.2);
}

.story-hero {
  position: relative;
  overflow: hidden;
  padding: 6.2rem 1.4rem 2.6rem;
  border-bottom: 1px solid rgba(255, 214, 168, 0.2);
}

.hero-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(1px);
  opacity: 0.48;
  pointer-events: none;
}

.hero-orb-a {
  width: 320px;
  height: 320px;
  top: -70px;
  right: -80px;
  background: radial-gradient(circle at 35% 35%, rgba(255, 176, 107, 0.95), rgba(255, 133, 56, 0.25));
  animation: drift-a 8s ease-in-out infinite;
}

.hero-orb-b {
  width: 250px;
  height: 250px;
  top: 120px;
  left: -90px;
  background: radial-gradient(circle at 60% 30%, rgba(109, 198, 243, 0.7), rgba(64, 124, 155, 0.18));
  animation: drift-b 10s ease-in-out infinite;
}

.hero-kicker,
.block-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--immersive-accent-soft);
  font-weight: 700;
}

.story-hero h1 {
  margin: 0.8rem 0 1rem;
  max-width: 18ch;
  font-size: clamp(1.9rem, 4.6vw, 3.5rem);
  line-height: 1.05;
  color: #fff3e5;
}

.hero-lead {
  max-width: 62ch;
  margin: 0;
  color: rgba(247, 229, 211, 0.9);
  line-height: 1.6;
}

.hero-cta-row {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.cta-primary,
.cta-secondary,
.cta-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.cta-primary {
  color: #1a120d;
  background: linear-gradient(120deg, #ffad6a, #ffd4a8);
  box-shadow: 0 10px 22px rgba(255, 164, 96, 0.28);
}

.cta-secondary,
.cta-toggle {
  color: #ffe6ce;
  border: 1px solid rgba(255, 210, 170, 0.4);
  background: rgba(15, 41, 58, 0.45);
}

.cta-toggle {
  cursor: pointer;
}

.cta-primary:hover,
.cta-secondary:hover,
.cta-toggle:hover {
  transform: translateY(-2px);
}

.hero-metrics {
  margin-top: 1.3rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.8rem;
}

.metric-card {
  background: var(--immersive-panel);
  border: 1px solid var(--immersive-border);
  border-radius: 14px;
  padding: 0.9rem 1rem;
}

.metric-value {
  display: block;
  font-size: 1.7rem;
  font-weight: 700;
  color: #ffd7b3;
}

.metric-label {
  display: block;
  margin-top: 0.25rem;
  color: rgba(239, 221, 202, 0.84);
}

.reveal-section {
  padding: 2.4rem 0;
}

.reveal-grid {
  margin-top: 1.2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.95rem;
}

.reveal-block {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

.story-card,
.join-card,
.split-layout {
  border: 1px solid var(--immersive-border);
  border-radius: 16px;
  background: var(--immersive-panel);
  padding: 1rem 1.05rem;
}

.story-card h3,
.join-card h2,
.split-layout h2 {
  margin-top: 0.2rem;
  color: #ffe6cd;
}

.story-card p,
.join-card p,
.split-layout p,
.feature-list li {
  color: rgba(239, 221, 202, 0.9);
}

.story-card a {
  color: #ffcb95;
  font-weight: 700;
  text-decoration: none;
}

.story-card a:hover {
  text-decoration: underline;
}

.ambiance-band {
  border-top: 1px solid rgba(255, 214, 168, 0.2);
  border-bottom: 1px solid rgba(255, 214, 168, 0.2);
  background: linear-gradient(135deg, rgba(6, 20, 30, 0.44), rgba(19, 57, 76, 0.5));
}

.split-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem;
}

.feature-list {
  margin: 0;
  padding-left: 1.1rem;
  line-height: 1.6;
}

.join-section {
  padding-bottom: 4rem;
}

.join-actions {
  margin-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.immersive-landing-page.mode-narratif {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 203, 149, 0.2), transparent 34%),
    radial-gradient(circle at 88% 6%, rgba(87, 170, 207, 0.28), transparent 33%),
    linear-gradient(148deg, #060d14 0%, #0b1b2a 48%, #0f2a3e 100%);
}

.immersive-landing-page.mode-narratif .story-hero h1 {
  text-shadow: 0 6px 24px rgba(255, 179, 112, 0.24);
}

@keyframes drift-a {
  0% { transform: translateY(0); }
  50% { transform: translateY(16px); }
  100% { transform: translateY(0); }
}

@keyframes drift-b {
  0% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
  100% { transform: translateY(0); }
}

@media (max-width: 780px) {
  .split-layout {
    grid-template-columns: 1fr;
  }

  .story-hero {
    padding-top: 5.2rem;
  }
}