/* ============================================
   AQUASPORT DIVING - Design Tokens
   ============================================ */

:root {
  /* Colors - Primary */
  --color-deep-ocean: #0B2545;
  --color-atlantic-blue: #1B6B9E;
  --color-cyan-bright: #00B4D8;
  --color-sand-white: #FAFAF5;
  --color-warm-sand: #F5E6D3;

  /* Colors - Secondary */
  --color-lava-black: #1A1A2E;
  --color-coral-gold: #E8A838;
  --color-coral-gold-hover: #F5C563;
  --color-sea-foam: #E0F7FA;
  --color-volcanic-grey: #4A5568;
  --color-light-grey: #E2E8F0;

  /* Colors - Semantic */
  --color-text-primary: var(--color-lava-black);
  --color-text-secondary: var(--color-volcanic-grey);
  --color-text-on-dark: #FFFFFF;
  --color-text-on-dark-muted: rgba(255, 255, 255, 0.8);
  --color-bg-primary: var(--color-sand-white);
  --color-bg-secondary: var(--color-warm-sand);
  --color-bg-dark: var(--color-deep-ocean);
  --color-link: var(--color-atlantic-blue);
  --color-link-hover: var(--color-cyan-bright);

  /* Gradients */
  --gradient-hero-overlay: linear-gradient(180deg, rgba(11,37,69,0.2) 0%, rgba(11,37,69,0.7) 100%);
  --gradient-cta-hover: linear-gradient(135deg, #E8A838 0%, #F5C563 100%);
  --gradient-ocean: linear-gradient(180deg, #0B2545 0%, #1B6B9E 100%);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-accent: 'Caveat', cursive;

  /* Font Sizes */
  --text-xs: 0.8125rem;    /* 13px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1.125rem;   /* 18px */
  --text-lg: 1.25rem;      /* 20px */
  --text-xl: 1.375rem;     /* 22px */
  --text-2xl: 1.75rem;     /* 28px */
  --text-3xl: 2.625rem;    /* 42px */
  --text-4xl: 3.5rem;      /* 56px */
  --text-baseline: 2rem;   /* 32px */

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

  /* Line Heights */
  --leading-tight: 1.2;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  /* Spacing */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-30: 7.5rem;   /* 120px */

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-card-hover: 0 12px 48px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease-out;

  /* Layout */
  --container-max: 1440px;
  --container-padding: var(--space-6);
  --section-padding-y: var(--space-20);
  --header-height: 80px;

  /* Z-index */
  --z-header: 100;
  --z-overlay: 50;
  --z-modal: 200;
}

/* Mobile overrides */
@media (max-width: 767px) {
  :root {
    --text-4xl: 2.25rem;   /* 36px */
    --text-3xl: 1.75rem;   /* 28px */
    --text-2xl: 1.375rem;  /* 22px */
    --text-xl: 1.125rem;   /* 18px */
    --text-base: 1rem;     /* 16px */
    --text-baseline: 1.5rem; /* 24px */
    --section-padding-y: var(--space-12);
    --container-padding: var(--space-4);
    --header-height: 64px;
  }
}

/* Tablet overrides */
@media (min-width: 768px) and (max-width: 1024px) {
  :root {
    --text-4xl: 2.75rem;
    --text-3xl: 2rem;
    --section-padding-y: var(--space-16);
  }
}