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

:root {
  --color-primary: #5D4037;
  --color-primary-dark: #3E2723;
  --color-primary-light: #8D6E63;
  --color-accent: #6D8A5E;
  --color-accent-dark: #4E6B40;
  --color-bg: #F5F0E8;
  --color-card: #FFFFFF;
  --color-text: #3E2723;
  --color-text-light: #8D6E63;
  --color-danger: #C62828;
  --color-danger-light: #FFEBEE;
  --color-shadow: rgba(62, 39, 35, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --swipe-threshold: 100;
}

[data-theme] {
  --color-primary: #2C2C2C;
  --color-primary-dark: #1A1A1A;
  --color-primary-light: #666;
  --color-accent: #7DA86E;
  --color-accent-dark: #5E8A4F;
  --color-bg: #1A1A1A;
  --color-card: #2C2C2C;
  --color-text: #E8E0D8;
  --color-text-light: #999;
  --color-danger: #EF5350;
  --color-danger-light: #4A1C1C;
  --color-shadow: rgba(0, 0, 0, 0.3);
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  touch-action: pan-y;
}

#app {
  height: 100dvh;
  display: flex;
  flex-direction: column;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

/* ─── Header ─── */
header {
  background: var(--color-primary);
  color: #fff;
  padding: 14px 20px 12px;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.header-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

header h1 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

header .subtitle {
  font-size: 0.75rem;
  opacity: 0.75;
  margin-top: 2px;
  font-family: var(--font-sans);
  letter-spacing: 0.3px;
}

.theme-toggle {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  transition: background 0.2s;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 2px;
}

.theme-toggle:hover {
  background: rgba(255,255,255,0.15);
}

/* ─── Views ─── */
.view {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  display: none;
  padding: 16px;
}

.view.active {
  display: block;
}

/* ─── List View ─── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-light);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--color-primary-light);
}

.empty-state p {
  font-size: 0.9rem;
}

/* ─── Card ─── */
.card-wrapper {
  position: relative;
  margin-bottom: 12px;
  border-radius: var(--radius);
  overflow: hidden;
}

.card-actions {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  padding-right: 16px;
  background: var(--color-danger);
  border-radius: 0 var(--radius) var(--radius) 0;
  z-index: 0;
}

.card-actions button {
  background: none;
  border: none;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 16px;
  cursor: pointer;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: 0 1px 4px var(--color-shadow);
  position: relative;
  z-index: 1;
  transition: transform var(--transition), box-shadow var(--transition);
  touch-action: pan-y;
  will-change: transform;
  cursor: pointer;
}

.card.swiping {
  transition: none;
  box-shadow: 0 2px 8px var(--color-shadow);
}

.card.removing {
  transition: transform 0.3s ease-out, opacity 0.3s ease-out;
  transform: translateX(-120%) !important;
  opacity: 0;
}

.card-content {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.card-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-bg);
}

.card-thumb-placeholder {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-text-light);
}

.card-body {
  flex: 1;
  min-width: 0;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-date {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.card-note {
  font-size: 0.82rem;
  color: var(--color-text-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-badges {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.card-badge {
  font-size: 0.65rem;
  background: var(--color-bg);
  color: var(--color-text-light);
  padding: 2px 8px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.card-has-audio::after {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
  margin-left: 4px;
}

/* ─── FAB ─── */
.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  border: none;
  font-size: 1.5rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  touch-action: manipulation;
}

.fab:active {
  transform: scale(0.92);
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

@media (min-width: 480px) {
  .fab {
    bottom: 32px;
    right: 32px;
  }
}

/* ─── Form View ─── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary-light);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid #ddd;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  background: var(--color-card);
  color: var(--color-text);
  transition: border-color var(--transition);
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(109, 138, 94, 0.15);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

/* ─── Action Buttons ─── */
.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 8px;
  border: 1.5px solid #ddd;
  border-radius: var(--radius-sm);
  background: var(--color-card);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-light);
  transition: all var(--transition);
  touch-action: manipulation;
  font-family: var(--font-sans);
}

.action-btn .icon {
  font-size: 1.3rem;
  line-height: 1;
}

.action-btn:active {
  transform: scale(0.96);
}

.action-btn.active {
  border-color: var(--color-accent);
  background: rgba(109, 138, 94, 0.08);
  color: var(--color-accent-dark);
}

.action-btn.active .icon {
  filter: none;
}

.action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ─── Preview areas ─── */
.preview-area {
  margin-bottom: 16px;
  display: none;
}

.preview-area.visible {
  display: block;
}

.preview-area img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1.5px solid #ddd;
}

.preview-area audio {
  width: 100%;
  border-radius: var(--radius-sm);
}

.gps-info {
  font-size: 0.82rem;
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: rgba(109, 138, 94, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.gps-info .coords {
  font-family: monospace;
  font-size: 0.78rem;
}

/* ─── Form Buttons ─── */
.form-buttons {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.btn {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  touch-action: manipulation;
  font-family: var(--font-sans);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
}

.btn-secondary {
  background: #e0e0e0;
  color: var(--color-text);
}

.btn-secondary:hover {
  background: #d0d0d0;
}

/* ─── Detail View ─── */
.detail-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.btn-back {
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--color-primary);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-sans);
  font-weight: 600;
}

.detail-photo {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1.5px solid #ddd;
}

.detail-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-primary-dark);
  margin-bottom: 4px;
}

.detail-date {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
}

.detail-note {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 16px;
  white-space: pre-wrap;
}

.detail-section {
  margin-bottom: 16px;
}

.detail-section h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.detail-section audio {
  width: 100%;
  border-radius: var(--radius-sm);
}

.detail-map-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-accent-dark);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 14px;
  background: rgba(109, 138, 94, 0.1);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.detail-map-link:hover {
  background: rgba(109, 138, 94, 0.2);
}

/* ─── Toast ─── */
.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-primary-dark);
  color: #fff;
  padding: 10px 24px;
  border-radius: 24px;
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  z-index: 100;
  opacity: 0;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ─── Loading spinner ─── */
.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ─── Scrollbar ─── */
.view::-webkit-scrollbar {
  width: 4px;
}

.view::-webkit-scrollbar-track {
  background: transparent;
}

.view::-webkit-scrollbar-thumb {
  background: var(--color-primary-light);
  border-radius: 2px;
}

/* ─── Confirm Dialog ─── */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.confirm-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.confirm-dialog {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 300px;
  width: 90%;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  transform: scale(0.9);
  transition: transform 0.2s;
}

.confirm-overlay.show .confirm-dialog {
  transform: scale(1);
}

.confirm-dialog p {
  margin-bottom: 20px;
  font-size: 0.95rem;
  color: var(--color-text);
}

.confirm-dialog .buttons {
  display: flex;
  gap: 8px;
}

.confirm-dialog .btn {
  flex: 1;
}