/* ============================================================
   OPERAÇÃO MARÍTIMO — Design Tokens v1.0
   IDENTIDADE NÁUTICO-OPERACIONAL

   Paleta: Ocean Navy (#020B18) + Cyan (#00C9E8) + Brass (#C5A028)
   Tom: Naval, náutico, profundo, técnico, imponente
   ============================================================ */

:root {
  /* ─────────────────────────────────────
     COLORS — Primary (Ocean Navy Dominant)
     ───────────────────────────────────── */
  --color-black: #010810;
  --color-black-900: #020B18;
  --color-black-800: #030F20;
  --color-black-700: #051428;
  --color-black-600: #081A32;
  --color-black-500: #0C223C;
  --color-black-400: #112A46;

  /* ─────────────────────────────────────
     COLORS — Ocean Cyan (Primary Accent)
     ───────────────────────────────────── */
  --color-gold: #00C9E8;
  --color-gold-light: #48D9F0;
  --color-gold-dark: #0096C7;
  --color-gold-muted: #007BA8;
  --color-gold-subtle: rgba(0, 201, 232, 0.08);

  /* Alias — keep --color-ocean for semantic clarity */
  --color-ocean: #00C9E8;
  --color-ocean-light: #48D9F0;
  --color-ocean-dark: #0096C7;
  --color-ocean-subtle: rgba(0, 201, 232, 0.08);

  /* ─────────────────────────────────────
     COLORS — Nautical Brass (Secondary Accent)
     ───────────────────────────────────── */
  --color-brass: #C5A028;
  --color-brass-light: #D4B444;
  --color-brass-dark: #9E7F1A;
  --color-brass-subtle: rgba(197, 160, 40, 0.08);

  /* ─────────────────────────────────────
     COLORS — Institutional Navy
     ───────────────────────────────────── */
  --color-navy: #0D1B3E;
  --color-navy-light: #152952;
  --color-navy-dark: #08112A;

  /* ─────────────────────────────────────
     COLORS — Support
     ───────────────────────────────────── */
  --color-white: #FFFFFF;
  --color-gray-100: #E8F4F8;
  --color-gray-200: #C2D8E4;
  --color-gray-300: #8BAFC0;
  --color-gray-400: #607D8E;
  --color-gray-500: #4A6272;
  --color-gray-600: #334F60;
  --color-gray-700: #1E3545;

  --color-green: #00E5A0;
  --color-green-dark: #00B87A;
  --color-red: #FF3D71;
  --color-red-dark: #D42B5A;

  /* ─────────────────────────────────────
     COLORS — Semantic
     ───────────────────────────────────── */
  --color-bg: var(--color-black);
  --color-bg-alt: var(--color-black-900);
  --color-bg-card: var(--color-black-700);
  --color-bg-card-hover: var(--color-black-600);
  --color-text: var(--color-white);
  --color-text-secondary: var(--color-gray-300);
  --color-text-muted: var(--color-gray-500);
  --color-accent: var(--color-ocean);
  --color-border: rgba(0, 201, 232, 0.12);
  --color-border-strong: rgba(0, 201, 232, 0.30);
  --color-border-subtle: rgba(0, 201, 232, 0.06);

  /* ─────────────────────────────────────
     COLORS — Per-Curso
     ───────────────────────────────────── */
  --color-efomm: #00C9E8;
  --color-ason: #C5A028;
  --color-outros: #7C3AED;

  /* ─────────────────────────────────────
     TYPOGRAPHY — Teko (Condensed Headings)
     ───────────────────────────────────── */
  --font-heading: 'Teko', 'Barlow Condensed', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-accent: 'Barlow Condensed', 'Teko', sans-serif;

  /* Font Sizes — Fluid */
  --text-display: clamp(3.5rem, 8vw, 6rem);
  --text-hero: clamp(2.5rem, 6vw, 4.5rem);
  --text-h1: clamp(2.25rem, 5vw, 3.5rem);
  --text-h2: clamp(1.75rem, 3.5vw, 2.5rem);
  --text-h3: clamp(1.25rem, 2.5vw, 1.75rem);
  --text-h4: clamp(1.125rem, 2vw, 1.375rem);
  --text-body-lg: clamp(1.0625rem, 1.5vw, 1.25rem);
  --text-body: clamp(0.9375rem, 1.25vw, 1.0625rem);
  --text-sm: 0.875rem;
  --text-xs: 0.75rem;
  --text-badge: 0.6875rem;

  /* Font Weights */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-extrabold: 800;
  --weight-black: 900;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.1;
  --leading-snug: 1.25;
  --leading-normal: 1.5;
  --leading-relaxed: 1.65;

  /* Letter Spacing */
  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.08em;
  --tracking-wider: 0.15em;
  --tracking-widest: 0.25em;

  /* ─────────────────────────────────────
     SPACING — 4px base
     ───────────────────────────────────── */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --section-padding: clamp(5rem, 10vw, 8rem);

  /* ─────────────────────────────────────
     LAYOUT
     ───────────────────────────────────── */
  --container-max: 1280px;
  --container-padding: clamp(1.25rem, 4vw, 2rem);
  --grid-gap: clamp(1rem, 2vw, 1.5rem);

  /* ─────────────────────────────────────
     BORDER RADIUS
     ───────────────────────────────────── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* ─────────────────────────────────────
     SHADOWS — Dark ocean + Cyan glow
     ───────────────────────────────────── */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.6);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.8);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.9);
  --shadow-ocean: 0 0 30px rgba(0, 201, 232, 0.12);
  --shadow-ocean-strong: 0 0 40px rgba(0, 201, 232, 0.22);
  --shadow-ocean-btn: 0 4px 20px rgba(0, 201, 232, 0.30);
  --shadow-brass: 0 0 24px rgba(197, 160, 40, 0.15);

  /* ─────────────────────────────────────
     GRADIENTS
     ───────────────────────────────────── */
  --gradient-hero: linear-gradient(180deg, rgba(2,11,24,0.3) 0%, rgba(2,11,24,0.95) 100%);
  --gradient-card: linear-gradient(160deg, var(--color-black-600) 0%, var(--color-black-800) 100%);
  --gradient-ocean: linear-gradient(135deg, #00C9E8 0%, #0096C7 100%);
  --gradient-ocean-text: linear-gradient(135deg, #48D9F0 0%, #00C9E8 50%, #0096C7 100%);
  --gradient-brass: linear-gradient(135deg, #D4B444 0%, #C5A028 50%, #9E7F1A 100%);
  --gradient-dark: linear-gradient(180deg, var(--color-black) 0%, var(--color-black-900) 100%);
  --gradient-smoke: radial-gradient(ellipse at center, rgba(0,201,232,0.03) 0%, transparent 70%);
  --gradient-depth: linear-gradient(180deg,
    #020B18 0%,
    #030F20 40%,
    #04122A 70%,
    #020B18 100%
  );

  /* ─────────────────────────────────────
     TRANSITIONS
     ───────────────────────────────────── */
  --transition-fast: 150ms ease;
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 600ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ─────────────────────────────────────
     Z-INDEX
     ───────────────────────────────────── */
  --z-behind: -1;
  --z-base: 0;
  --z-above: 1;
  --z-sticky: 100;
  --z-nav: 200;
  --z-overlay: 300;
  --z-modal: 400;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-base: 0ms;
    --transition-slow: 0ms;
    --transition-spring: 0ms;
  }
}