/* base.css — Reset & Design Tokens */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -moz-text-size-adjust: none;
  -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: 80px;
}

:root, [data-theme="light"] {
  /* 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);

  /* 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;

  /* Travel Weather Palette — Sky Blue + Warm Coral */
  --color-bg:             #f8fafb;
  --color-surface:        #ffffff;
  --color-surface-2:      #f1f5f9;
  --color-surface-offset: #e8f0f7;
  --color-divider:        #dce6ee;
  --color-border:         #c8d6e1;

  --color-text:           #1a2332;
  --color-text-muted:     #5f7082;
  --color-text-faint:     #94a3b5;
  --color-text-inverse:   #ffffff;

  --color-primary:        #0077b6;
  --color-primary-hover:  #005f94;
  --color-primary-active: #004a73;
  --color-primary-highlight: #d4eaf7;

  --color-accent:         #e85d3a;
  --color-accent-hover:   #d14a28;
  --color-accent-light:   #fef0ec;

  --color-warm:           #f59e0b;
  --color-warm-light:     #fef7e0;
  --color-hot:            #ef4444;
  --color-cool:           #3b82f6;
  --color-mild:           #10b981;

  --color-success:        #22c55e;
  --color-warning:        #f59e0b;
  --color-error:          #ef4444;

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

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

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  --font-display: 'Cabinet Grotesk', 'Inter', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
}

[data-theme="dark"] {
  --color-bg:             #0f1724;
  --color-surface:        #162033;
  --color-surface-2:      #1c2841;
  --color-surface-offset: #1a253d;
  --color-divider:        #243552;
  --color-border:         #2e4163;

  --color-text:           #e2e8f0;
  --color-text-muted:     #8fa0b8;
  --color-text-faint:     #5a6f87;
  --color-text-inverse:   #0f1724;

  --color-primary:        #38a8e0;
  --color-primary-hover:  #5dbbea;
  --color-primary-active: #2b8fc0;
  --color-primary-highlight: #1a3050;

  --color-accent:         #f08060;
  --color-accent-hover:   #f5967c;
  --color-accent-light:   #2d1f1a;

  --color-warm-light:     #2d2510;
  --color-hot:            #f87171;
  --color-cool:           #60a5fa;
  --color-mild:           #34d399;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:             #0f1724;
    --color-surface:        #162033;
    --color-surface-2:      #1c2841;
    --color-surface-offset: #1a253d;
    --color-divider:        #243552;
    --color-border:         #2e4163;
    --color-text:           #e2e8f0;
    --color-text-muted:     #8fa0b8;
    --color-text-faint:     #5a6f87;
    --color-text-inverse:   #0f1724;
    --color-primary:        #38a8e0;
    --color-primary-hover:  #5dbbea;
    --color-primary-active: #2b8fc0;
    --color-primary-highlight: #1a3050;
    --color-accent:         #f08060;
    --color-accent-hover:   #f5967c;
    --color-accent-light:   #2d1f1a;
    --color-warm-light:     #2d2510;
    --color-hot:            #f87171;
    --color-cool:           #60a5fa;
    --color-mild:           #34d399;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.4);
  }
}

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);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
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;
    scroll-behavior: auto !important;
  }
}

button { cursor: pointer; background: none; border: none; }
table { border-collapse: collapse; width: 100%; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); text-decoration: underline; }

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);
}

.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;
}