:root {
  --bg-top: #eaf3ff;
  --bg-bottom: #ffffff;
  --card-bg: #ffffff;
  --text: #1c2733;
  --text-muted: #5b6b7c;
  --accent: #2f6fd1;
  --accent-soft: #e5f0ff;
  --border: #dbe6f3;
  --error: #d1453b;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-top: #0f1720;
    --bg-bottom: #060a10;
    --card-bg: #151f2b;
    --text: #e7edf3;
    --text-muted: #93a3b3;
    --accent: #6fa4ef;
    --accent-soft: #17273c;
    --border: #253242;
    --error: #ff6b61;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, var(--bg-top), var(--bg-bottom) 60%);
  min-height: 100vh;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.app-header {
  text-align: center;
}

.app-header h1 {
  margin: 0;
  font-size: 1.6rem;
}

.subtitle {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.search-form {
  display: flex;
  gap: 8px;
}

#place-input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  font-size: 1rem;
}

#search-button {
  padding: 12px 18px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

#search-button:active {
  opacity: 0.85;
}

.mode-toggle {
  display: flex;
  gap: 8px;
}

.mode-btn {
  flex: 1;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-muted);
  font-size: 0.9rem;
  cursor: pointer;
}

.mode-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}

.result {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.placeholder {
  text-align: center;
  color: var(--text-muted);
  padding: 32px 0;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

.card-title {
  margin: 0 0 12px;
  font-size: 1.1rem;
  font-weight: 700;
}

.day-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.day-row:last-child {
  border-bottom: none;
}

.day-emoji {
  font-size: 1.4rem;
  width: 32px;
  text-align: center;
}

.day-label {
  width: 64px;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}

.day-weather {
  flex: 1;
  font-size: 0.92rem;
  line-height: 1.4;
}

.week-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 96px;
}

.chip-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.78rem;
  white-space: nowrap;
}

.section-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 4px 0 2px;
}

.sibling-list {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sibling-btn {
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
  cursor: pointer;
}

.candidate-btn {
  display: block;
  width: 100%;
  text-align: left;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  border-radius: 10px;
  padding: 12px;
  margin-bottom: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}

.error-box {
  background: var(--accent-soft);
  border: 1px solid var(--error);
  color: var(--error);
  border-radius: 12px;
  padding: 14px;
  font-size: 0.9rem;
}

.loading {
  text-align: center;
  color: var(--text-muted);
  padding: 24px 0;
}

.app-footer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}