/* ===== Reset / Base ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --color-primary: #4285f4;
  --color-primary-dark: #3367d6;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;
  --color-muted: #6b7280;
  --color-bg: #f5f7fa;
  --color-card: #ffffff;
  --color-border: #e5e7eb;
  --color-text: #1f2937;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC",
    "Microsoft JhengHei", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== Layout ===== */
.app-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  padding: 16px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.app-header h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.app-main {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

/* ===== Search Section ===== */
.search-section {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
}

.search-form { display: flex; flex-direction: column; gap: 10px; }

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

.search-input {
  flex: 1;
  padding: 12px 14px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  min-width: 0;
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 18px;
  font-size: 0.95rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s, transform 0.05s;
  white-space: nowrap;
  font-family: inherit;
}

.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background-color: var(--color-primary-dark); }

.btn-secondary {
  background-color: #f3f4f6;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover:not(:disabled) { background-color: #e5e7eb; }

.btn-geo { width: 100%; }

/* ===== Message Area ===== */
.message-area:empty { display: none; }

.message-area {
  margin-bottom: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.message-area.info {
  background-color: #eff6ff;
  color: #1e40af;
  border: 1px solid #bfdbfe;
}

.message-area.error {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.message-area.loading {
  background-color: #fffbeb;
  color: #92400e;
  border: 1px solid #fde68a;
}

/* ===== Map ===== */
.map-section { margin-bottom: 16px; }

.map {
  width: 100%;
  height: 320px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: #ddd;
}

/* ===== Results ===== */
.results-section {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
}

.results-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.results-header h2 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.results-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.checkbox-label,
.select-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.select-label select {
  padding: 4px 6px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.9rem;
  background: #fff;
}

.parking-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ===== Parking Card ===== */
.parking-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px;
  background: #fff;
  transition: box-shadow 0.15s, border-color 0.15s;
  cursor: pointer;
}

.parking-card:hover { box-shadow: var(--shadow-md); border-color: #cbd5e1; }
.parking-card.active { border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(66,133,244,0.18); }

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-row {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin: 4px 0;
  font-size: 0.92rem;
  color: var(--color-text);
}

.card-row .icon {
  flex-shrink: 0;
  width: 1.2em;
  text-align: center;
}

.card-row.muted { color: var(--color-muted); font-size: 0.88rem; }

.card-row.pay {
  white-space: pre-line;
  word-break: break-word;
}

/* 剩餘車位顏色 */
.surplus { font-weight: 600; }
.surplus-green { color: var(--color-success); }
.surplus-yellow { color: var(--color-warning); }
.surplus-red { color: var(--color-danger); }
.surplus-gray { color: var(--color-muted); font-weight: 500; }

.card-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.card-actions .btn {
  flex: 1;
  padding: 10px 12px;
  font-size: 0.9rem;
  min-width: 120px;
}

/* ===== Footer ===== */
.app-footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-muted);
  padding: 20px 16px 32px;
  line-height: 1.7;
}

.app-footer a { color: var(--color-muted); text-decoration: underline; }

/* ===== Leaflet popup ===== */
.leaflet-popup-content { font-family: inherit; font-size: 0.9rem; margin: 8px 12px; }
.leaflet-popup-content b { color: var(--color-primary); }

/* 自訂目的地圖標 (CSS-based, 不依賴外部圖片) */
.dest-marker {
  background: var(--color-danger);
  width: 22px;
  height: 22px;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  border: 3px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}

.parking-marker {
  background: var(--color-primary);
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 14px;
  border: 2px solid #fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

/* ===== Responsive (Desktop) ===== */
@media (min-width: 768px) {
  .app-main { max-width: 960px; padding: 24px; }
  .map { height: 420px; }
  .app-header h1 { font-size: 1.5rem; }
  .btn-geo { width: auto; align-self: flex-start; }
}

/* ===== Loading spinner ===== */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: -3px;
  margin-right: 6px;
}

@keyframes spin { to { transform: rotate(360deg); } }