@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --color-bg: #161826;
  --color-surface: #232532;
  --color-text: #e9e9ed;
  --color-accent: #b5abfc;
  --color-divider: color-mix(in srgb, #e9e9ed 16%, transparent);
  --color-accent-900: #2b2741;
  --color-neutral-900: #292b31;

  --font-heading: "Inter", system-ui, sans-serif;
  --font-heading-weight: 500;
  --font-body: "Inter", system-ui, sans-serif;

  --space-2: 5.6px;
  --space-3: 8.4px;
  --space-4: 11.2px;

  --radius-md: 8px;
  --radius-lg: 14px;

  --shadow-sm: 0 0 0 1px #3f424d;
  --shadow-md: 0 0 0 1px #595d6c, 0 6px 18px rgba(0,0,0,0.55);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
  font-family: var(--font-body);
  color: var(--color-text);
  text-wrap: pretty;
  background:
    radial-gradient(1100px 700px at 88% -180px, color-mix(in srgb, var(--color-accent-900) 70%, transparent), transparent 60%),
    radial-gradient(1000px 800px at -10% 105%, color-mix(in srgb, black 35%, transparent), transparent 55%),
    var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 var(--space-2);
}
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 25px; }
p { margin: 0 0 var(--space-3); }
a { color: var(--color-accent); text-underline-offset: 3px; }
img { display: block; max-width: 100%; }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 72px); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 1s cubic-bezier(.16,1,.3,1), transform 1s cubic-bezier(.16,1,.3,1); }
.reveal[data-in] { opacity: 1; transform: none; }

.trio { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: clamp(28px, 3.2vw, 52px); }
.split { display: grid; grid-template-columns: minmax(0,5fr) minmax(0,7fr); gap: clamp(28px, 5vw, 88px); align-items: center; }
.formgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap: 14px; }

@media (max-width: 900px) { .trio { grid-template-columns: 1fr; gap: 36px; } }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } .split .split-fig { order: -1; } }
@media (max-width: 620px) { .formgrid { grid-template-columns: 1fr; } }
@media (max-width: 760px) { .navlinks { display: none; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } }

.grain {
  position: fixed; inset: 0; z-index: 60; pointer-events: none; opacity: .05; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

.lighten { mix-blend-mode: lighten; background-color: transparent; }

/* — placeholders média (à remplacer par les vraies photos/vidéos) — */
.media-placeholder {
  display: flex; align-items: center; justify-content: center; text-align: center;
  width: 100%; height: 100%; padding: 16px;
  background: color-mix(in srgb, var(--color-surface) 80%, transparent);
  border: 1px dashed color-mix(in srgb, var(--color-text) 25%, transparent);
  color: color-mix(in srgb, var(--color-text) 50%, transparent);
  font-size: 12.5px; letter-spacing: .02em;
}

/* — boutons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid transparent;
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: var(--radius-md);
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { color: var(--color-accent); border-color: var(--color-accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--color-accent) 12%, transparent); }
.btn-primary:active { background: color-mix(in srgb, var(--color-accent) 22%, transparent); }
.btn-secondary { border-color: var(--color-divider); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }

/* — formulaire — */
.field > label { display: block; font-size: 12px; margin-bottom: 5px; color: color-mix(in srgb, var(--color-text) 70%, transparent); }
.input {
  width: 100%; min-height: 36px; padding: 6px 10px; font: inherit;
  font-size: 14px; color: var(--color-text); caret-color: var(--color-accent);
  background: var(--color-surface);
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
}
.input:hover { border-color: color-mix(in srgb, var(--color-text) 45%, transparent); }
.input:focus-visible { border-color: var(--color-accent); outline-offset: 0; }
textarea.input { min-height: 90px; resize: vertical; }