/* ========================================
   BASE CSS — OJ Golf Cart Rentals
   ======================================== */

/* --- Design Tokens --- */
:root {
  /* Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 8rem);

  /* Spacing */
  --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;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-display: 'Clash Display', 'Plus Jakarta Sans', sans-serif;
  --font-body: 'General Sans', 'Inter', sans-serif;
}

/* --- Light Mode (default) --- */
:root, [data-theme='light'] {
  /* Surfaces — warm off-white, Caribbean inspired */
  --color-bg: #FAF8F4;
  --color-surface: #FFFFFF;
  --color-surface-2: #F3EFE8;
  --color-surface-offset: #EDE9E0;
  --color-divider: #DDD9CF;
  --color-border: #CCC8BC;

  /* Text */
  --color-text: #1A1A18;
  --color-text-muted: #6B6960;
  --color-text-faint: #B0ADA4;
  --color-text-inverse: #FAFAF8;

  /* Primary — deep ocean teal */
  --color-primary: #0A7E8C;
  --color-primary-hover: #08646F;
  --color-primary-active: #064C55;
  --color-primary-subtle: #D0EDEF;

  /* Accent — warm sand/gold */
  --color-accent: #D4A017;
  --color-accent-hover: #B8880E;
  --color-accent-subtle: #FBF0D0;

  /* Success */
  --color-success: #2E7D32;
  --color-success-subtle: #C8E6C9;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.14);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.18);
}

/* --- Dark Mode --- */
[data-theme='dark'] {
  --color-bg: #0D1B2A;
  --color-surface: #132233;
  --color-surface-2: #1A2C3F;
  --color-surface-offset: #1F3347;
  --color-divider: #2A3F52;
  --color-border: #354D62;

  --color-text: #E8E4DA;
  --color-text-muted: #8FA3B1;
  --color-text-faint: #4F6478;
  --color-text-inverse: #0D1B2A;

  --color-primary: #3DC2D0;
  --color-primary-hover: #52CDD9;
  --color-primary-active: #6BD9E4;
  --color-primary-subtle: #0F3040;

  --color-accent: #F5C842;
  --color-accent-hover: #FFD966;
  --color-accent-subtle: #2A220A;

  --color-success: #66BB6A;
  --color-success-subtle: #1B3A1C;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.6);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0D1B2A;
    --color-surface: #132233;
    --color-surface-2: #1A2C3F;
    --color-surface-offset: #1F3347;
    --color-divider: #2A3F52;
    --color-border: #354D62;
    --color-text: #E8E4DA;
    --color-text-muted: #8FA3B1;
    --color-text-faint: #4F6478;
    --color-text-inverse: #0D1B2A;
    --color-primary: #3DC2D0;
    --color-primary-hover: #52CDD9;
    --color-primary-active: #6BD9E4;
    --color-primary-subtle: #0F3040;
    --color-accent: #F5C842;
    --color-accent-hover: #FFD966;
    --color-accent-subtle: #2A220A;
    --color-success: #66BB6A;
    --color-success-subtle: #1B3A1C;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
    --shadow-xl: 0 24px 64px rgba(0,0,0,0.6);
  }
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

img, picture, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.15;
  font-family: var(--font-display);
}

p, li, figcaption {
  text-wrap: pretty;
  max-width: 72ch;
}

::selection {
  background: color-mix(in srgb, var(--color-primary) 25%, transparent);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

button { cursor: pointer; background: none; border: none; }

a, button, [role='button'], input, textarea, select {
  transition: color var(--transition-interactive),
              background var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              opacity var(--transition-interactive);
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}