/* ═══════════════════════════════════════════════════════════
   灵犀漆语 · 组件样式库
   Buttons, Cards, Forms, Badges, Modals, Tables, etc.
   ═══════════════════════════════════════════════════════════ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
}

.btn > span {
  display: inline-flex;
  align-items: center;
  line-height: 1;
}

.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-text-inverse);
  border: none;
}
.btn-primary:hover:not(:disabled) {
  box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}

.btn-danger {
  background: var(--gradient-vermillion);
  color: #fff;
  border: none;
}
.btn-danger:hover:not(:disabled) {
  box-shadow: var(--shadow-vermillion);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-gold);
  border-color: var(--color-border-active);
}
.btn-outline:hover:not(:disabled) {
  background: var(--color-gold-glow);
  border-color: var(--color-gold);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border: none;
  padding: var(--space-2) var(--space-3);
}
.btn-ghost:hover { color: var(--color-text-primary); background: var(--color-bg-hover); }

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-round {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  padding: 0;
  font-size: var(--text-xl);
}

/* ── Cards ── */
.card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.card:hover {
  border-color: var(--color-border-active);
  box-shadow: var(--shadow-md);
}

.card-flat {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}

.card-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
}

.card-body { }
.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-divider);
}

/* Stat Card */
.stat-card {
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.stat-card .stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.stat-card .stat-value {
  font-size: var(--text-3xl);
  font-weight: 900;
  font-family: var(--font-serif);
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-card .stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* ── Forms ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px var(--color-gold-glow);
}

.form-input::placeholder { color: var(--color-text-muted); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-select { cursor: pointer; }
.form-select option { background: var(--color-bg-secondary); color: var(--color-text-primary); }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px 10px;
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  line-height: 1.6;
}

.badge-gold { background: var(--color-gold-glow); color: var(--color-gold); border: 1px solid rgba(212,168,83,0.2); }
.badge-vermillion { background: var(--color-vermillion-glow); color: var(--color-vermillion-light); border: 1px solid rgba(194,54,22,0.2); }
.badge-jade { background: var(--color-jade-glow); color: var(--color-jade); border: 1px solid rgba(46,204,113,0.2); }
.badge-azure { background: var(--color-azure-glow); color: var(--color-azure); border: 1px solid rgba(52,152,219,0.2); }
.badge-muted { background: rgba(255,255,255,0.05); color: var(--color-text-muted); border: 1px solid var(--color-divider); }

/* ── Tables ── */
.table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.data-table th {
  background: var(--color-bg-elevated);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text-primary);
}

.data-table tr:hover td { background: var(--color-bg-hover); }
.data-table tr:last-child td { border-bottom: none; }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  padding: var(--space-4);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(20px);
  transition: transform var(--transition-spring);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}

.modal-header h3 {
  font-size: var(--text-lg);
}

.modal-body { padding: var(--space-6); }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-divider);
}

/* ── Toast ── */
.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  min-width: 280px;
  max-width: 400px;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  pointer-events: auto;
  animation: slideInRight 0.4s ease forwards;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border: 1px solid;
}

.toast-icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.toast-icon {
  width: 18px;
  height: 18px;
}

.toast-success { background: rgba(46, 204, 113, 0.12); border-color: rgba(46, 204, 113, 0.25); color: var(--color-jade); }
.toast-error { background: rgba(194, 54, 22, 0.12); border-color: rgba(194, 54, 22, 0.25); color: var(--color-vermillion-light); }
.toast-info { background: rgba(52, 152, 219, 0.12); border-color: rgba(52, 152, 219, 0.25); color: var(--color-azure); }
.toast-warning { background: rgba(212, 168, 83, 0.12); border-color: rgba(212, 168, 83, 0.25); color: var(--color-gold); }

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ── Loading Spinner ── */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-lg { width: 40px; height: 40px; border-width: 4px; }

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-16);
  color: var(--color-text-muted);
}

/* ── Empty State ── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-8);
  text-align: center;
}

.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-state .empty-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.empty-state .empty-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 360px;
}

/* ── Tag ── */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
  background: var(--color-bg-hover);
  color: var(--color-text-secondary);
  gap: var(--space-1);
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--color-divider);
  margin: var(--space-6) 0;
}

/* ── Timeline ── */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-gold), var(--color-vermillion), var(--color-border));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-8) + 5px);
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 3px solid var(--color-bg-primary);
  z-index: 1;
}

.timeline-date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.timeline-content {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}

/* ── Voice Recording Indicator ── */
.recording-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-vermillion-glow);
  border: 1px solid rgba(194, 54, 22, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-vermillion-light);
  font-size: var(--text-sm);
}

.recording-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-vermillion);
  animation: breathe 1.5s ease-in-out infinite;
}

/* ── Waveform visualization ── */
.waveform-container {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 40px;
  padding: 0 var(--space-4);
}

.waveform-bar {
  width: 3px;
  height: 100%;
  background: var(--color-gold);
  border-radius: 2px;
  transform-origin: bottom;
  animation: waveform 1.2s ease-in-out infinite;
}

@keyframes waveform {
  0%, 100% { transform: scaleY(0.2); }
  50% { transform: scaleY(1); }
}

.waveform-bar:nth-child(2) { animation-delay: 0.1s; }
.waveform-bar:nth-child(3) { animation-delay: 0.2s; }
.waveform-bar:nth-child(4) { animation-delay: 0.3s; }
.waveform-bar:nth-child(5) { animation-delay: 0.15s; }
.waveform-bar:nth-child(6) { animation-delay: 0.25s; }
.waveform-bar:nth-child(7) { animation-delay: 0.35s; }
.waveform-bar:nth-child(8) { animation-delay: 0.05s; }

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--color-divider);
  margin-bottom: var(--space-6);
  overflow-x: auto;
}

.tab-item {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-item:hover { color: var(--color-text-secondary); }
.tab-item.active {
  color: var(--color-gold);
  border-bottom-color: var(--color-gold);
}