:root,
html[data-theme="light"] {
  color-scheme: light;
  --canvas: #ffffff;
  --surface: #f4f6fa;
  --canvas-strong: #ffffff;
  --fg: #1a2332;
  --fg-muted: #5c6675;
  --brand: #0c2e8a;
  --brand-hover: #082466;
  --on-brand: #ffffff;
  --accent: #2f9a3f;
  --accent-hover: #237832;
  --on-accent: #ffffff;
  --warm: #d28c38;
  --warm-hover: #b37428;
  --on-warm: #1b1408;
  --line: #e5e8ef;
  --danger: #b42318;
  --ok: #157a42;
  --cpf: #8f1d2c;
  --cpf-hover: #6f1522;
  --on-cpf: #ffffff;
  --hero-fg: #ffffff;
  --hero-muted: #e8edf5;
  --shadow: 0 12px 40px rgb(12 46 138 / 6%);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #0b1220;
  --surface: #141c2c;
  --canvas-strong: #161e30;
  --fg: #f3f6fb;
  --fg-muted: #a8b3c4;
  --brand: #8fb0ff;
  --brand-hover: #b3c8ff;
  --on-brand: #081226;
  --accent: #4cbe62;
  --accent-hover: #6ad07d;
  --on-accent: #06210d;
  --warm: #e0a04a;
  --warm-hover: #f0b65f;
  --on-warm: #1b1408;
  --line: #2a3548;
  --danger: #f97066;
  --ok: #4ade80;
  --cpf: #d46a76;
  --cpf-hover: #e18993;
  --on-cpf: #1a0a0d;
  --hero-fg: #ffffff;
  --hero-muted: #e8edf5;
  --shadow: 0 12px 40px rgb(0 0 0 / 35%);
}

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  background: var(--canvas);
  color: var(--fg);
  font-family: Geist, ui-sans-serif, system-ui, sans-serif;
  transition: background-color 200ms ease, color 200ms ease;
}

::selection {
  background: color-mix(in srgb, var(--brand) 18%, var(--canvas));
  color: var(--fg);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.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;
}

.surface-card {
  background: var(--canvas-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

html[data-theme="dark"] .site-logo {
  filter: drop-shadow(0 1px 1px rgb(0 0 0 / 40%));
}

html[data-theme="light"] .theme-when-dark,
html[data-theme="dark"] .theme-when-light {
  display: none;
}

html[data-theme="dark"] .theme-when-dark,
html[data-theme="light"] .theme-when-light {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.interactive-card {
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.interactive-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--brand) 35%, var(--line));
  box-shadow: 0 16px 36px rgb(12 46 138 / 10%);
}

.chip {
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.chip:hover {
  border-color: var(--brand);
  color: var(--fg);
  background: var(--canvas);
}

[data-site-header].is-scrolled {
  border-color: var(--line);
  box-shadow: 0 4px 16px rgb(12 46 138 / 8%);
}

[data-mobile-nav].is-open {
  display: block;
}

.hero-slide {
  opacity: 0;
  transform: scale(1);
  transition: opacity 700ms ease, transform 700ms ease;
}

.hero-slide.is-active {
  opacity: 1;
  transform: scale(1.05);
}

.field-input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 18%, transparent);
}

.volunteer-input {
  border: 1px solid var(--line);
  background: var(--canvas);
  color: var(--fg);
}

.volunteer-input:focus {
  border-color: var(--cpf);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--cpf) 16%, transparent);
}

.photo-drop {
  border: 1.5px dashed color-mix(in srgb, var(--line) 70%, var(--fg-muted));
  background: color-mix(in srgb, var(--surface) 70%, var(--canvas));
}

.photo-drop.is-active,
.photo-drop:hover {
  border-color: var(--cpf);
  background: color-mix(in srgb, var(--cpf) 6%, var(--canvas));
}

@media (min-width: 1024px) {
  [data-mobile-nav].is-open {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .interactive-card,
  .chip,
  .hero-slide {
    transition: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}