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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: box-shadow var(--transition), background var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-header h3 {
  font-size: 0.95rem;
  font-weight: 600;
}

.card-header .badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 99px;
  font-weight: 600;
}

.card-body {
  font-size: 0.9rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: var(--surface-alt);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--border-light);
}

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

.btn-ghost:hover {
  background: var(--surface-alt);
  color: var(--text);
}

.btn-danger {
  background: var(--danger-light);
  color: var(--danger);
  border-color: transparent;
}

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

.btn-success {
  background: var(--success-light);
  color: var(--success);
}

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

.btn-sm {
  padding: 5px 10px;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 10px 24px;
  font-size: 0.95rem;
}

/* ===== FORM CONTROLS ===== */

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.form-row {
  display: flex;
  gap: 12px;
  align-items: end;
}

.form-row .form-group {
  flex: 1;
}

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

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-table th {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 2px solid var(--border);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  white-space: nowrap;
}

.data-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition-fast);
}

.data-table tr:hover td {
  background: var(--surface-alt);
}

/* Result tables */
.result-table th {
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.85rem;
}

.result-table td.value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
}

/* ===== TOOLTIPS ===== */

[data-tooltip] {
  position: relative;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) scale(0.95);
  padding: 5px 10px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
  color: var(--text);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 200;
  box-shadow: var(--shadow);
}

[data-tooltip]:hover::after {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}

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

.toast-container {
  position: fixed;
  top: calc(var(--header-height) + 12px);
  right: 16px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  font-size: 0.85rem;
  min-width: 280px;
  max-width: 400px;
  animation: slideIn 0.3s ease;
}

.toast.toast-success { border-left: 3px solid var(--success); }
.toast.toast-error { border-left: 3px solid var(--danger); }
.toast.toast-warning { border-left: 3px solid var(--warning); }
.toast.toast-info { border-left: 3px solid var(--info); }

.toast.removing {
  animation: slideOut 0.3s ease forwards;
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100%); }
}

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

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: 99px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-info { background: var(--info-light); color: var(--info); }
.badge-accent { background: var(--accent-light); color: var(--accent); }

/* ===== DROPDOWN MENU ===== */

.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 180px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 4px;
  z-index: 300;
  display: none;
}

.dropdown-menu.show {
  display: block;
  animation: fadeIn 0.15s ease;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 0.85rem;
  border-radius: var(--radius-xs);
  color: var(--text-secondary);
  width: 100%;
  text-align: left;
}

.dropdown-item:hover {
  background: var(--surface-alt);
  color: var(--text);
}

/* ===== RESULT VALUES ===== */

.result-value {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.result-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.result-card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  text-align: center;
}

.result-card .result-value {
  font-size: 1.3rem;
  margin-bottom: 4px;
}

/* ===== INTERPRETATION BOX ===== */

.interpretation {
  padding: 14px 16px;
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text);
  margin-top: 12px;
}

.interpretation strong {
  color: var(--accent);
}

/* ===== EMPTY STATE ===== */

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  opacity: 0.4;
}

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

/* ===== LOADING SPINNER ===== */

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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