/* components.css - Buttons, Cards, Forms, Tables for AI Ethics Registry */

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-5);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

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

.btn-primary {
  background-color: var(--color-slate-900);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-slate-800);
}

.btn-secondary {
  background-color: white;
  color: var(--color-slate-700);
  border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-slate-50);
  border-color: var(--color-slate-300);
}

.btn-accent {
  background-color: var(--color-accent);
  color: white;
}

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

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  color: var(--color-text-primary);
  background: var(--color-slate-100);
}

.btn-sm {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-xs);
}

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

/* ========================================
   CARDS
   ======================================== */

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-body {
  padding: var(--spacing-6);
}

.card-header {
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-slate-50);
}

.card-footer {
  padding: var(--spacing-4) var(--spacing-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-slate-50);
}

/* Registry Entry Card */
.registry-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

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

.registry-card-header {
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.registry-card-body {
  padding: var(--spacing-6);
}

.registry-card-meta {
  display: flex;
  gap: var(--spacing-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* Stat Card */
.stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  text-align: center;
}

.stat-card .stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  font-family: var(--font-mono);
}

.stat-card .stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-2);
}

/* ========================================
   BADGES & TAGS
   ======================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  padding: var(--spacing-1) var(--spacing-2);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
}

.badge-verified {
  background: #dcfce7;
  color: #166534;
}

.badge-pending {
  background: #fef3c7;
  color: #92400e;
}

.badge-flagged {
  background: #fee2e2;
  color: #991b1b;
}

.badge-category {
  background: var(--color-slate-100);
  color: var(--color-slate-700);
}

/* ========================================
   FORMS
   ======================================== */

.form-group {
  margin-bottom: var(--spacing-6);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-slate-400);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.5rem;
  padding-right: 3rem;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--spacing-1);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-red-500);
  margin-top: var(--spacing-1);
}

.form-group.has-error .form-input,
.form-group.has-error .form-textarea,
.form-group.has-error .form-select {
  border-color: var(--color-red-500);
}

/* ========================================
   TABLES
   ======================================== */

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

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

.table th,
.table td {
  padding: var(--spacing-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-slate-50);
}

.table td {
  color: var(--color-text-secondary);
}

.table tbody tr:hover {
  background: var(--color-slate-50);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

/* ========================================
   MODALS
   ======================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
  overflow: hidden;
}

.modal.active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-4) var(--spacing-6);
  border-bottom: 1px solid var(--color-border);
}

.modal-body {
  padding: var(--spacing-6);
  overflow-y: auto;
  max-height: calc(90vh - 140px);
}

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

/* ========================================
   TOASTS
   ======================================== */

.toast {
  position: fixed;
  bottom: var(--spacing-6);
  right: var(--spacing-6);
  padding: var(--spacing-4) var(--spacing-6);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  z-index: var(--z-tooltip);
  animation: slideUp 0.3s ease;
  box-shadow: var(--shadow-lg);
}

.toast-success {
  border-left: 4px solid var(--color-green-500);
}

.toast-error {
  border-left: 4px solid var(--color-red-500);
}

.toast-info {
  border-left: 4px solid var(--color-accent);
}

/* ========================================
   EMPTY STATES
   ======================================== */

.empty-state {
  padding: var(--spacing-16) var(--spacing-8);
  text-align: center;
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-6);
  color: var(--color-slate-300);
}

.empty-state h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-2);
}

.empty-state p {
  max-width: 300px;
  margin: 0 auto;
}

/* ========================================
   SEARCH
   ======================================== */

.search-box {
  position: relative;
}

.search-box .search-icon {
  position: absolute;
  left: var(--spacing-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-slate-400);
  pointer-events: none;
}

.search-box .search-icon svg {
  width: 20px;
  height: 20px;
}

.search-box .form-input {
  padding-left: var(--spacing-12);
}