:root {
  --bg: #f4f6f5;
  --card: #ffffff;
  --text: #10231b;
  --muted: #5b6a63;
  --border: #e3e8e5;
  --accent: #16a34a;
  --accent-soft: #dcfce7;
  --shadow: 0 1px 3px rgba(16, 35, 27, 0.08), 0 1px 2px rgba(16, 35, 27, 0.06);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1713;
    --card: #16201a;
    --text: #eaf3ee;
    --muted: #9fb3a8;
    --border: #263229;
    --accent: #22c55e;
    --accent-soft: #143423;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

main {
  max-width: 560px;
  margin: 0 auto;
  padding: 20px 16px 60px;
}

header {
  text-align: center;
  padding: 12px 0 20px;
}

header h1 {
  font-size: 1.4rem;
  margin: 0 0 4px;
}

header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.banner {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 16px;
}

.hero {
  text-align: center;
  padding: 28px 18px;
}

.hero .emoji {
  font-size: 2.6rem;
  line-height: 1;
}

.hero .rel {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 8px 0 2px;
}

.hero .date {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero .types {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-soft);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.section-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0 0 10px;
}

.upcoming-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.upcoming-item:last-child { border-bottom: none; }

.upcoming-item .icon { font-size: 1.4rem; }

.upcoming-item .info { flex: 1; }

.upcoming-item .name { font-weight: 600; font-size: 0.95rem; }

.upcoming-item .when { color: var(--muted); font-size: 0.85rem; }

fieldset {
  border: none;
  padding: 0;
  margin: 0 0 16px;
}

legend {
  font-weight: 600;
  margin-bottom: 8px;
  padding: 0;
}

label.check {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.95rem;
  cursor: pointer;
}

label.check input { width: 18px; height: 18px; accent-color: var(--accent); }

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
}

.row input[type="time"] {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 8px;
  font-size: 0.95rem;
}

button {
  font: inherit;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  cursor: pointer;
  background: var(--accent);
  color: white;
  font-weight: 600;
}

button.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

button:disabled {
  opacity: 0.5;
  cursor: default;
}

.btn-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.status {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 10px;
}

.status.ok { color: var(--accent); }
.status.warn { color: #d97706; }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 20px 0;
}

details > summary {
  cursor: pointer;
  font-weight: 600;
  padding: 4px 0;
}

.hint {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.4;
  margin-top: 4px;
}