/* speeddates.com — design tokens & base styles
   See docs/UI_PLAN.md and docs/03_speeddates_brand_design.docx */

:root {
  /* ---------- Primitives (per docs/03_speeddates_brand_design.docx) ---------- */
  --color-burgundy-500: #8B1A4A;
  --color-champagne-500: #D4A96A;
  --color-cream-500: #F5ECD7;
  --color-plum-900: #2D1B2E;
  --color-offwhite-50: #FDFAF5;
  --color-gray-600: #5C5058;
  --color-gray-300: #E5D9C8;
  --color-gray-400: #B8A89A;
  --color-white: #FFFFFF;

  /* ---------- Semantic ---------- */
  --color-bg-page: var(--color-offwhite-50);
  --color-bg-card: var(--color-white);
  --color-bg-tag: var(--color-cream-500);
  --color-bg-cta: var(--color-burgundy-500);
  --color-bg-section: var(--color-cream-500);
  --color-text-primary: var(--color-plum-900);
  --color-text-body: var(--color-gray-600);
  --color-text-meta: var(--color-gray-600);   /* metadata uses body gray for AA contrast */
  --color-text-muted: var(--color-gray-400);  /* disabled / decorative only per doc 03 */
  --color-text-cta: var(--color-offwhite-50);
  --color-text-accent: var(--color-burgundy-500);
  --color-text-tag: var(--color-burgundy-500);
  --color-border-default: var(--color-gray-300);
  --color-border-focus: var(--color-burgundy-500);
  --color-accent-gold: var(--color-champagne-500);
  --color-focus-ring: rgba(139, 26, 74, 0.35);

  /* ---------- Spacing (8pt scale) ---------- */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  --spacing-4xl: 96px;

  /* ---------- Radius ---------- */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-pill: 999px;

  /* ---------- Effects ---------- */
  --shadow-card: 0 2px 12px rgba(45, 27, 46, 0.08);
  --shadow-card-hover: 0 8px 28px rgba(45, 27, 46, 0.12);
  --shadow-overlay: 0 -4px 24px rgba(45, 27, 46, 0.10);

  /* ---------- Layout ---------- */
  --content-max: 1200px;
  --gutter-desktop: 32px;
  --gutter-mobile: 20px;
  --nav-height: 72px;
  --tap-min: 44px;

  /* ---------- Motion ---------- */
  --motion-fast: 0.15s ease;
  --motion-base: 0.2s ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-text-body);
  background: var(--color-bg-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; padding: 0; }
input, select, textarea { font-family: inherit; }
::selection { background: var(--color-burgundy-500); color: var(--color-offwhite-50); }

/* ---------- Accessibility ---------- */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--color-border-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.btn:focus-visible,
.event-card:focus-visible {
  outline-offset: 3px;
}
.input:focus-visible {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; top: -40px; left: var(--spacing-md);
  background: var(--color-burgundy-500); color: var(--color-offwhite-50);
  padding: 8px 16px; border-radius: var(--radius-md); z-index: 1000;
  transition: top var(--motion-fast);
}
.skip-link:focus-visible { top: var(--spacing-md); }

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

/* ---------- Type ramp (fluid via clamp) ---------- */
.t-hero {
  font-size: clamp(40px, 6.5vw, 72px);
  font-weight: 700; line-height: 1.05; letter-spacing: -0.02em;
  color: var(--color-text-primary);
}
.t-hero-xl {
  font-size: clamp(44px, 9vw, 96px);
  font-weight: 700; line-height: 0.98; letter-spacing: -0.03em;
  color: var(--color-text-primary);
}
.t-page {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700; line-height: 1.15; letter-spacing: -0.015em;
  color: var(--color-text-primary);
}
.t-section {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 600; line-height: 1.25;
  color: var(--color-text-primary);
}
.t-card    { font-size: 18px; font-weight: 600; line-height: 1.35; color: var(--color-text-primary); }
.t-body    { font-size: 16px; font-weight: 400; line-height: 1.6;  color: var(--color-text-body); }
.t-sec     { font-size: 14px; font-weight: 400; line-height: 1.5;  color: var(--color-text-meta); }
.t-label   { font-size: 14px; font-weight: 600; line-height: 1.4;  letter-spacing: 0.01em; }
.t-eyebrow {
  font-size: 12px; font-weight: 600; line-height: 1.4;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-text-accent);
}

/* ---------- Container ---------- */
.container { max-width: var(--content-max); margin: 0 auto; padding: 0 var(--gutter-desktop); width: 100%; }
@media (max-width: 768px) { .container { padding: 0 var(--gutter-mobile); } }

/* ---------- Site nav ---------- */
.site-nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--spacing-lg);
  padding: var(--spacing-md) var(--gutter-desktop);
  max-width: var(--content-max); margin: 0 auto;
  min-height: var(--nav-height);
}
.site-nav .brand {
  font-weight: 700; font-size: 19px; color: var(--color-text-primary);
  letter-spacing: -0.01em; flex-shrink: 0;
}
.site-nav .brand .dot { color: var(--color-text-accent); }
.site-nav .links { display: flex; align-items: center; gap: var(--spacing-xl); }
.site-nav .links a:not(.btn) {
  font-size: 14px; font-weight: 500;
  color: var(--color-text-body);
  padding: var(--spacing-sm) 0;
  position: relative;
}
.site-nav .links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 2px;
  height: 1px; background: var(--color-accent-gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--motion-fast);
}
.site-nav .links a:not(.btn):hover { color: var(--color-text-primary); }
.site-nav .links a:not(.btn):hover::after { transform: scaleX(1); }
.site-nav.on-dark .brand,
.site-nav.on-dark .links a:not(.btn) { color: var(--color-offwhite-50); }
.site-nav.on-dark .brand .dot { color: var(--color-champagne-500); }

/* Mobile nav toggle (hamburger) */
.nav-toggle {
  display: none;
  width: var(--tap-min); height: var(--tap-min);
  align-items: center; justify-content: center;
  border-radius: var(--radius-md); flex-shrink: 0;
  color: var(--color-text-primary);
}
.nav-toggle:hover { background: var(--color-cream-500); }
.site-nav.on-dark .nav-toggle { color: var(--color-offwhite-50); }
.site-nav.on-dark .nav-toggle:hover { background: rgba(253, 250, 245, 0.12); }
.nav-toggle .icon-close { display: none; }

@media (max-width: 768px) {
  .site-nav { padding: var(--spacing-sm) var(--gutter-mobile); }
  .nav-toggle { display: inline-flex; }
  .site-nav .links {
    position: fixed; inset: 0; top: 56px;
    background: var(--color-bg-page);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: var(--spacing-lg) var(--gutter-mobile);
    transform: translateX(100%);
    transition: transform var(--motion-base);
    z-index: 50;
  }
  .site-nav .links a:not(.btn) {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border-default);
    font-size: 17px;
    color: var(--color-text-primary);
  }
  .site-nav .links a.btn { margin-top: var(--spacing-md); justify-content: center; }
  .site-nav[data-open="true"] .links { transform: translateX(0); }
  .site-nav[data-open="true"] .nav-toggle .icon-open { display: none; }
  .site-nav[data-open="true"] .nav-toggle .icon-close { display: inline-flex; }
  .site-nav.on-dark[data-open="true"] .links {
    background: var(--color-bg-page);
  }
  .site-nav.on-dark[data-open="true"] .links a:not(.btn) {
    color: var(--color-text-primary);
  }
}

/* ---------- Gold rule ---------- */
.gold-rule {
  display: block; width: 120px; height: 1px; background: var(--color-accent-gold);
  margin: var(--spacing-lg) 0;
}
.gold-rule.full { width: 100%; opacity: 0.6; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--spacing-sm); padding: 12px 24px;
  border-radius: var(--radius-md); font-size: 14px; font-weight: 600;
  letter-spacing: 0.01em; min-height: var(--tap-min);
  transition: background-color var(--motion-fast), box-shadow var(--motion-fast), transform var(--motion-fast);
  white-space: nowrap;
}
.btn-primary { background: var(--color-bg-cta); color: var(--color-text-cta); }
.btn-primary:hover { filter: brightness(0.92); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost {
  background: transparent; color: var(--color-text-accent);
  box-shadow: inset 0 0 0 1.5px currentColor;
}
.btn-ghost:hover { background: var(--color-cream-500); }
.btn-ghost.on-dark { color: var(--color-offwhite-50); }
.btn-ghost.on-dark:hover { background: rgba(253, 250, 245, 0.1); }
.btn-lg { padding: 16px 32px; font-size: 15px; min-height: 52px; }
.btn-sm { padding: 8px 18px; font-size: 13px; min-height: 36px; }

/* ---------- Tag / pill ---------- */
.tag {
  display: inline-flex; align-items: center;
  padding: 4px 10px; border-radius: var(--radius-pill);
  background: var(--color-bg-tag); color: var(--color-text-tag);
  font-size: 12px; font-weight: 600; letter-spacing: 0.01em; white-space: nowrap;
}
.tag-dark { background: var(--color-burgundy-500); color: var(--color-offwhite-50); }
.tag-outline { background: transparent; box-shadow: inset 0 0 0 1px var(--color-border-default); color: var(--color-text-body); }

/* ---------- Input ---------- */
.input {
  width: 100%; min-height: var(--tap-min);
  padding: 12px 16px;
  border: 1px solid var(--color-border-default);
  background: var(--color-bg-card); border-radius: var(--radius-md);
  font-size: 15px; color: var(--color-text-primary);
  transition: border-color var(--motion-fast), box-shadow var(--motion-fast);
}
.input::placeholder { color: var(--color-text-muted); }

/* ---------- Icons ---------- */
.icon { width: 20px; height: 20px; stroke: currentColor; fill: none;
        stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.icon-sm { width: 16px; height: 16px; }
.icon-lg { width: 24px; height: 24px; }

/* ---------- Event card ---------- */
.event-card {
  display: flex; flex-direction: column;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform var(--motion-fast), box-shadow var(--motion-fast);
}
.event-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}
.event-card .photo {
  aspect-ratio: 16 / 10;
  background: var(--color-cream-500);
  overflow: hidden; position: relative;
}
.event-card .photo img { width: 100%; height: 100%; object-fit: cover; }
.event-card .photo .sold-out {
  position: absolute; top: var(--spacing-md); right: var(--spacing-md);
}
.event-card .body {
  padding: var(--spacing-lg);
  display: flex; flex-direction: column; gap: var(--spacing-xs);
  flex-grow: 1;
}
.event-card .meta {
  display: flex; gap: var(--spacing-xs); align-items: center;
  font-size: 13px; color: var(--color-text-meta);
}
.event-card .meta .sep { color: var(--color-text-muted); }
.event-card .title {
  font-size: 18px; font-weight: 600; color: var(--color-text-primary);
  line-height: 1.3; margin-top: var(--spacing-xs);
}
.event-card .date {
  font-size: 14px; color: var(--color-text-meta);
  margin-top: var(--spacing-xs);
  display: flex; align-items: center; gap: var(--spacing-xs);
}
.event-card .tags {
  display: flex; gap: var(--spacing-xs); margin-top: var(--spacing-sm); flex-wrap: wrap;
}

/* ---------- Grids ---------- */
.event-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-lg); }
@media (max-width: 1024px) { .event-grid { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-md); } }
@media (max-width: 560px)  { .event-grid { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer {
  padding: var(--spacing-3xl) 0;
  text-align: center; color: var(--color-text-meta);
  font-size: 13px;
  margin-top: var(--spacing-4xl);
}
.site-footer .links {
  display: inline-flex; gap: var(--spacing-md);
  margin-top: var(--spacing-sm); flex-wrap: wrap; justify-content: center;
}
.site-footer .links a {
  padding: 8px 6px;
  display: inline-flex; align-items: center; min-height: var(--tap-min);
}
.site-footer .links a:hover { color: var(--color-text-accent); }