/* Mode Découverte — landing /decouverte (famille visuelle vitrine) */

:root {
  --dintro-accent: #facc15;
  --dintro-accent-soft: rgba(250, 204, 21, 0.85);
  --dintro-humain: #3b82f6;
  --dintro-ia: #e8eef8;
  --dintro-muted: rgba(226, 232, 240, 0.78);
  --dintro-border: rgba(250, 204, 21, 0.22);
  --dintro-panel: rgba(8, 12, 22, 0.55);
  --dintro-max: 720px;
}

.dintro {
  margin: -8px -4px 0;
  color: var(--m-text);
  overflow-x: hidden;
}

/* ——— Hero ——— */

.dintro-hero {
  position: relative;
  min-height: min(78vh, 640px);
  display: grid;
  align-items: end;
  overflow: hidden;
  border-radius: 0 0 20px 20px;
}

.dintro-hero-bg {
  position: absolute;
  inset: 0;
  background: url("/images/login-bg-classic.jpg") center / cover no-repeat;
  transform: scale(1.05);
  animation: dintro-drift 24s ease-in-out infinite alternate;
}

.dintro-hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 8, 12, 0.28) 0%, rgba(7, 8, 12, 0.72) 48%, rgba(7, 11, 20, 0.97) 100%),
    linear-gradient(90deg, rgba(7, 8, 12, 0.55) 0%, rgba(7, 8, 12, 0.2) 55%, rgba(7, 8, 12, 0.45) 100%);
}

.dintro-hero-inner {
  position: relative;
  z-index: 1;
  padding: clamp(2.5rem, 8vh, 3.75rem) 1.15rem 2rem;
  max-width: var(--dintro-max);
  animation: dintro-rise 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.dintro-label {
  display: inline-flex;
  margin: 0 0 0.85rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(250, 204, 21, 0.35);
  background: rgba(8, 12, 22, 0.45);
  color: var(--dintro-accent-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.dintro-title {
  margin: 0 0 0.65rem;
  font-family: var(--m-display);
  font-size: clamp(1.85rem, 7vw, 2.55rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.dintro-lead {
  margin: 0 0 0.85rem;
  font-family: var(--m-display);
  font-size: clamp(1.05rem, 3.4vw, 1.25rem);
  font-weight: 600;
  color: var(--dintro-accent-soft);
  line-height: 1.35;
}

.dintro-intro {
  margin: 0 0 1.4rem;
  max-width: 34rem;
  color: var(--dintro-muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.dintro-hero-actions,
.dintro-footer-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: stretch;
}

.dintro-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0.85rem 1.35rem;
  border-radius: 12px;
  background: var(--dintro-accent);
  color: #111;
  font-family: var(--m-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 10px 28px rgba(250, 204, 21, 0.22);
}

.dintro-cta:active {
  transform: translateY(1px);
}

.dintro-cta--xl {
  min-height: 56px;
  font-size: 1rem;
  width: 100%;
  max-width: 22rem;
}

.dintro-back,
.dintro-link-vitrine {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: var(--m-text);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
}

.dintro-link-vitrine {
  margin-top: 0.35rem;
  align-self: flex-start;
}

/* ——— Sections ——— */

.dintro-section {
  padding: clamp(2.25rem, 6vw, 3.25rem) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.dintro-section--alt {
  background: linear-gradient(180deg, rgba(12, 16, 28, 0.65), rgba(7, 8, 12, 0));
}

.dintro-section--cta {
  background:
    radial-gradient(ellipse 80% 70% at 50% 0%, rgba(250, 204, 21, 0.12), transparent 62%);
  text-align: center;
}

.dintro-section-inner {
  width: min(var(--dintro-max), 100%);
  margin: 0 auto;
  padding: 0 1.15rem;
}

.dintro-kicker {
  margin: 0 0 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dintro-accent-soft);
}

.dintro-h2 {
  margin: 0 0 0.85rem;
  font-family: var(--m-display);
  font-size: clamp(1.35rem, 4.5vw, 1.85rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.dintro-text {
  margin: 0 0 1rem;
  color: var(--dintro-muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.dintro-note {
  margin: 1.15rem 0 0;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--dintro-accent);
  background: rgba(250, 204, 21, 0.06);
  border-radius: 0 12px 12px 0;
  color: var(--dintro-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* ——— Color cards ——— */

.dintro-color-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-top: 1.25rem;
}

.dintro-color-card {
  padding: 1.1rem 1.15rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--dintro-panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: dintro-rise 0.75s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.dintro-color-card--humain {
  border-color: rgba(59, 130, 246, 0.35);
  animation-delay: 0.05s;
}

.dintro-color-card--ia {
  border-color: rgba(232, 238, 248, 0.22);
  animation-delay: 0.12s;
}

.dintro-swatch {
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  margin-bottom: 0.75rem;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.08);
}

.dintro-swatch--humain {
  background: var(--dintro-humain);
}

.dintro-swatch--ia {
  background: var(--dintro-ia);
}

.dintro-color-title {
  margin: 0 0 0.35rem;
  font-family: var(--m-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.dintro-color-text {
  margin: 0;
  color: var(--dintro-muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

/* ——— Split vitrine / découverte ——— */

.dintro-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 1.25rem 0 0.5rem;
}

.dintro-split-item {
  padding: 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

.dintro-split-item--accent {
  border-color: rgba(250, 204, 21, 0.35);
  background: rgba(250, 204, 21, 0.07);
}

.dintro-split-label {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--m-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dintro-accent-soft);
}

.dintro-split-item p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.4;
}

.dintro-cta-block {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.dintro-cta-block .dintro-text {
  max-width: 28rem;
}

/* ——— Rubriques ——— */

.dintro-rubriques {
  list-style: none;
  margin: 1.25rem 0 1.75rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.dintro-rubrique {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
  min-height: 88px;
  padding: 0.95rem 1rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(160deg, rgba(250, 204, 21, 0.07), transparent 55%),
    rgba(8, 12, 22, 0.55);
}

.dintro-rubrique-ico {
  font-size: 1.25rem;
  line-height: 1;
}

.dintro-rubrique-label {
  font-family: var(--m-display);
  font-weight: 600;
  font-size: 0.92rem;
}

/* ——— Motion ——— */

@keyframes dintro-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes dintro-drift {
  from {
    transform: scale(1.05) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.08) translate3d(-1.5%, -1%, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .dintro-hero-bg,
  .dintro-hero-inner,
  .dintro-color-card {
    animation: none;
  }
}

/* ——— Desktop / large ——— */

@media (min-width: 640px) {
  .dintro-hero-actions,
  .dintro-footer-actions {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .dintro-color-grid,
  .dintro-split {
    grid-template-columns: 1fr 1fr;
  }

  .dintro-rubriques {
    grid-template-columns: repeat(4, 1fr);
  }

  .dintro-cta--xl {
    width: auto;
  }
}