/**
 * GuideIT Solutions Component Library Architecture
 * Enterprise Reusable Components Built on CSS Tokens
 */

/* ─── Buttons ─────────────────────────────────────────────── */
.gs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  user-select: none;
  white-space: nowrap;
}

.gs-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.gs-btn-primary {
  background-color: var(--gs-primary);
  color: #ffffff;
  border-color: var(--gs-primary);
}
.gs-btn-primary:hover:not(:disabled) {
  background-color: var(--gs-primary-hover);
  border-color: var(--gs-primary-hover);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
}

.gs-btn-secondary {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.gs-btn-secondary:hover:not(:disabled) {
  background-color: var(--border-color);
  border-color: var(--border-hover);
}

.gs-btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}
.gs-btn-outline:hover:not(:disabled) {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-hover);
}

.gs-btn-success {
  background-color: var(--gs-success);
  color: #ffffff;
}
.gs-btn-success:hover:not(:disabled) {
  background-color: #059669;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

.gs-btn-danger {
  background-color: var(--gs-error);
  color: #ffffff;
}
.gs-btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
}

.gs-btn-sm {
  font-size: 11px;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
}

.gs-btn-icon {
  padding: 8px;
  border-radius: var(--radius-md);
}

/* ─── Cards & Glass Surfaces ──────────────────────────────── */
.gs-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.gs-card-glass {
  background: var(--bg-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-glass);
}

.gs-card-hover:hover {
  border-color: var(--border-hover);
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.2);
}

/* ─── Inputs & Forms ──────────────────────────────────────── */
.gs-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.gs-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.gs-input, .gs-select, .gs-textarea {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--text-primary);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  outline: none;
  transition: border-color 150ms ease, box-shadow 150ms ease;
  width: 100%;
}

.gs-input:focus, .gs-select:focus, .gs-textarea:focus {
  border-color: var(--gs-primary);
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}

.gs-input::placeholder, .gs-textarea::placeholder {
  color: var(--text-muted);
}

.gs-input-error {
  border-color: var(--gs-error) !important;
}

.gs-error-msg {
  font-size: 11px;
  color: var(--gs-error);
  margin-top: 2px;
}

/* ─── Badges & Tags ───────────────────────────────────────── */
.gs-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
}

.gs-badge-primary {
  background-color: rgba(2, 132, 199, 0.12);
  color: var(--gs-primary);
  border-color: rgba(2, 132, 199, 0.25);
}

.gs-badge-success {
  background-color: var(--gs-success-bg);
  color: var(--gs-success);
  border-color: rgba(16, 185, 129, 0.25);
}

.gs-badge-warning {
  background-color: var(--gs-warning-bg);
  color: var(--gs-warning);
  border-color: rgba(245, 158, 11, 0.25);
}

.gs-badge-neutral {
  background-color: var(--bg-surface-elevated);
  color: var(--text-secondary);
  border-color: var(--border-color);
}

/* ─── Navigation Tabs ─────────────────────────────────────── */
.gs-tabs {
  display: flex;
  gap: var(--space-2);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2px;
}

.gs-tab {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 150ms ease;
}

.gs-tab:hover {
  color: var(--text-primary);
}

.gs-tab.active {
  color: var(--gs-primary);
  border-bottom-color: var(--gs-primary);
}

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

.gs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

.gs-table th {
  background-color: var(--bg-surface-elevated);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-color);
}

.gs-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

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

.gs-table tr:hover td {
  background-color: rgba(255, 255, 255, 0.02);
}

/* ─── Modals & Drawers ────────────────────────────────────── */
.gs-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: var(--modal-overlay);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease, visibility 200ms ease;
  padding: var(--space-4);
}

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

.gs-modal {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 540px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  transform: scale(0.95);
  transition: transform 200ms cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.gs-modal-overlay.open .gs-modal {
  transform: scale(1);
}

.gs-modal-header {
  padding: var(--space-5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gs-modal-body {
  padding: var(--space-5);
  max-height: 75vh;
  overflow-y: auto;
}

.gs-modal-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  background-color: var(--bg-surface-elevated);
}

/* ─── Notifications & Toasts ──────────────────────────────── */
.gs-toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
  pointer-events: none;
}

.gs-toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  animation: slideIn 200ms ease;
}

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

.gs-toast-success {
  border-color: var(--gs-success);
}
.gs-toast-error {
  border-color: var(--gs-error);
}

/* ─── Empty & Loading States ──────────────────────────────── */
.gs-empty-state {
  text-align: center;
  padding: var(--space-10) var(--space-4);
  color: var(--text-muted);
}
.gs-empty-state-icon {
  font-size: 36px;
  margin-bottom: var(--space-2);
  display: block;
}

.gs-skeleton {
  background: linear-gradient(90deg, var(--bg-surface-elevated) 25%, var(--border-color) 50%, var(--bg-surface-elevated) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}