/* ===== Atelier 408 — vitrine ===== */

:root {
  --bg: #060e1f;
  --orange: #f4820b;
  --white: #ffffff;
  --muted: rgba(255, 255, 255, 0.55);

  --font-display: "Epilogue", system-ui, sans-serif;
  --font-brand: "DM Sans", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 6vmin;
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

/* ===== Couches de fond ===== */

/* Halo orange diffus derrière le contenu */
.glow {
  position: fixed;
  left: 50%;
  top: 44%;
  transform: translate(-50%, -50%);
  width: min(880px, 130vw);
  height: min(880px, 130vw);
  background: radial-gradient(
    circle,
    rgba(244, 130, 11, 0.30) 0%,
    rgba(244, 130, 11, 0.10) 36%,
    transparent 70%
  );
  filter: blur(16px);
  pointer-events: none;
  z-index: 0;
  animation: glowpulse 9s ease-in-out infinite;
}

/* Grille technique très discrète, estompée sur les bords */
.grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, transparent 72%);
          mask-image: radial-gradient(ellipse at center, #000 0%, transparent 72%);
  pointer-events: none;
  z-index: 0;
}

/* Grain fin pour la texture premium */
.grain {
  position: fixed;
  inset: 0;
  opacity: 0.045;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===== Contenu ===== */

.hero {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.mark-wrap {
  position: relative;
  margin-bottom: 1.2rem;
  line-height: 0;
}

/* Lueur locale sous le logo */
.mark-wrap::after {
  content: "";
  position: absolute;
  inset: -28%;
  background: radial-gradient(circle, rgba(244, 130, 11, 0.45) 0%, transparent 68%);
  filter: blur(18px);
  z-index: -1;
  animation: glowpulse 9s ease-in-out infinite;
}

.mark {
  display: block;
  width: clamp(64px, 9vw, 88px);
  height: auto;
  filter: drop-shadow(0 14px 36px rgba(244, 130, 11, 0.28));
  animation: floaty 6s ease-in-out infinite;
}

.brand {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: clamp(2.7rem, 9vw, 6rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--white);
}

.tagline {
  margin-top: 1.25rem;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.15rem, 2.6vw, 2.05rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--white);
  text-wrap: balance;
}

.accent {
  color: var(--orange);
}

/* Saut de ligne désactivé sur petits écrans (flux naturel) */
.br {
  display: none;
}

@media (min-width: 700px) {
  .br {
    display: inline;
  }
}

/* ===== Pied de page ===== */

.footer {
  position: fixed;
  bottom: clamp(1.1rem, 3vh, 2rem);
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  font-size: 0.78rem;
  letter-spacing: 0.01em;
  color: var(--muted);
}

.footer .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--orange);
}

.footer a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer a:hover {
  color: var(--orange);
}

/* ===== Animations ===== */

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes floaty {
  50% {
    transform: translateY(-7px);
  }
}

@keyframes glowpulse {
  0%, 100% {
    opacity: 0.85;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.06);
  }
}

/* La lueur locale n'est pas centrée comme .glow : pulse sans translate */
.mark-wrap::after {
  animation-name: glowlocal;
}

@keyframes glowlocal {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50%      { opacity: 1;   transform: scale(1.08); }
}

.reveal {
  opacity: 0;
  animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
  animation-delay: var(--d, 0ms);
}

/* ===== Accessibilité : mouvement réduit ===== */

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .mark,
  .glow,
  .mark-wrap::after {
    animation: none;
  }
  .reveal {
    opacity: 1;
  }
}