/* shared.css — styles common to index.html and events/index.html */

:root {
  color-scheme: dark;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --indigo-400: #818cf8;
  --indigo-300: #a5b4fc;
  --amber-300: #fcd34d;
  --amber-400: #fbbf24;
  --font: system-ui, -apple-system, sans-serif;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --dur-fast: 80ms;
  --dur-normal: 150ms;
  --dur-slow: 300ms;
  --ease: cubic-bezier(0.165, 0.85, 0.45, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background-color: var(--slate-900);
  color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100dvh;
}

:focus-visible {
  outline: 2px solid var(--indigo-400);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.page { padding: 3rem 1rem; }
.container { max-width: 80rem; margin: 0 auto; }

header { margin-bottom: 2rem; }

.site-id {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.site-sep {
  font-size: 1rem;
  color: var(--slate-600);
}
.site-alt {
  font-size: 1rem;
  font-weight: 500;
  color: var(--slate-500);
  text-decoration: none;
  transition: color var(--dur-normal);
}
.site-alt:hover { color: #fff; }

.grant-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--slate-500);
  font-size: 0.875rem;
  text-decoration: none;
  margin-top: 0.4rem;
  transition: color var(--dur-normal);
}
.grant-badge:hover { color: var(--slate-400); }

.grant-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--slate-600);
  flex-shrink: 0;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.2;
}

.filter-tab {
  padding: 0.625rem 1rem;
  min-height: 44px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font);
  border: 1px solid rgba(51, 65, 85, 0.5);
  background: rgba(30, 41, 59, 0.4);
  color: var(--slate-400);
  cursor: pointer;
  transition: background-color var(--dur-normal), color var(--dur-normal), border-color var(--dur-normal);
}
.filter-tab:hover {
  background: rgba(51, 65, 85, 0.5);
  color: #fff;
  border-color: var(--slate-600);
}
.filter-tab[aria-pressed="true"] {
  background: rgba(99, 102, 241, 0.1);
  color: var(--indigo-300);
  border-color: var(--indigo-400);
}

footer {
  margin-top: 6rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--slate-800);
  text-align: center;
}
footer p { color: var(--slate-500); font-size: 0.875rem; }
footer a {
  color: var(--indigo-400);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--dur-normal);
}
footer a:hover { color: var(--indigo-300); }

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contribute-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-sm);
  color: var(--amber-300);
  font-size: 0.8125rem;
  text-decoration: none;
  transition: background-color var(--dur-normal), border-color var(--dur-normal);
  white-space: nowrap;
}
.contribute-banner:hover {
  background: rgba(245, 158, 11, 0.14);
  border-color: rgba(245, 158, 11, 0.55);
  color: var(--amber-300);
}
.contribute-banner svg {
  width: 0.875rem;
  height: 0.875rem;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .page { padding: 3rem 1.5rem; }
}

@media (min-width: 1024px) {
  .page { padding: 3rem 2rem; }
}