/* ==============================================
   TOKENS — Variables design système
   Portfolio Elian SALOU v2
   Fond sombre charcoal + accent teal vif
   Apple-quality transitions & animations
   ============================================== */

:root {
  /* --- Fond --- */
  --c-bg: #101720;
  --c-surface: #171f2e;
  --c-surface-2: #1e2840;
  --c-surface-hover: #2a3850;

  /* --- Texte --- */
  --c-text: #eaf0fa;
  --c-text-2: #c0cfe0;
  --c-text-3: #8a9ab3;

  /* --- Accent --- */
  --c-accent: #2dd4bf;
  --c-accent-dim: #0d9488;
  --c-accent-bg: rgba(45, 212, 191, 0.12);
  --c-accent-bg-2: rgba(45, 212, 191, 0.06);
  --c-accent-border: rgba(45, 212, 191, 0.25);

  /* --- Secondaire --- */
  --c-blue: #60a5fa;
  --c-purple: #a78bfa;
  --c-orange: #fb923c;
  --c-rose: #fb7185;

  /* --- Bordures --- */
  --c-border: rgba(255, 255, 255, 0.09);
  --c-border-2: rgba(255, 255, 255, 0.12);

  /* --- Danger --- */
  --c-danger: #f87171;

  /* --- Ombres --- */
  --sh-sm: 0 1px 3px rgba(0,0,0,0.3);
  --sh-md: 0 4px 12px rgba(0,0,0,0.3);
  --sh-lg: 0 12px 32px rgba(0,0,0,0.35);
  --sh-glow: 0 0 24px rgba(45, 212, 191, 0.12);
  --sh-glow-lg: 0 0 60px rgba(45, 212, 191, 0.15);

  /* --- Rayons --- */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 999px;

  /* --- Transitions Apple-quality --- */
  --t-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
  --t-base: 0.28s cubic-bezier(0.25, 0.1, 0.25, 1);
  --t-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --t-apple: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --t-spring: 0.9s cubic-bezier(0.34, 1.56, 0.64, 1);
  --t-reveal: 1s cubic-bezier(0.16, 1, 0.3, 1);
  --t-hero: 1.2s cubic-bezier(0.16, 1, 0.3, 1);

  /* --- Typo --- */
  --f-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --f-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  --fs-xs: 0.75rem;
  --fs-sm: 0.8125rem;
  --fs-base: 0.9375rem;
  --fs-md: 1.0625rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.75rem;
  --fs-4xl: 3.5rem;
  --fs-5xl: 4.5rem;

  /* --- Layout --- */
  --max-w: 1120px;
  --header-h: 60px;
  --section-gap: 0;
}

/* ================================
   LARGE SCREENS — Scale up for 1440px+
   ================================ */
@media (min-width: 1440px) {
  :root {
    --max-w: 1320px;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.375rem;
    --fs-xl: 1.75rem;
    --fs-2xl: 2.25rem;
    --fs-3xl: 3rem;
    --fs-4xl: 4rem;
    --fs-5xl: 5rem;
  }
}

/* ================================
   EXTRA LARGE — 27" iMacs, ultrawide (1920px+)
   ================================ */
@media (min-width: 1920px) {
  :root {
    --max-w: 1520px;
    --fs-base: 1.0625rem;
    --fs-md: 1.1875rem;
    --fs-lg: 1.5rem;
    --fs-xl: 1.875rem;
    --fs-2xl: 2.5rem;
    --fs-3xl: 3.25rem;
    --fs-4xl: 4.5rem;
    --fs-5xl: 5.5rem;
    --header-h: 68px;
  }
}

/* ================================
   ULTRA LARGE — 4K (2560px+)
   ================================ */
@media (min-width: 2560px) {
  :root {
    --max-w: 1800px;
    --fs-base: 1.125rem;
    --fs-md: 1.25rem;
    --fs-lg: 1.625rem;
    --fs-xl: 2rem;
    --fs-2xl: 2.75rem;
    --fs-3xl: 3.5rem;
    --fs-5xl: 6rem;
  }
}