/* ============================================================
   ANTIGRAVITY — Common / Shared Components
   ============================================================ */

/* ─── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 7px var(--space-4);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  transition: background var(--transition-fast), border-color var(--transition-fast),
              color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  user-select: none;
  border: 1px solid transparent;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

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

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border-color: var(--border-default);
}
.btn-secondary:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-emphasis);
}

.btn-danger {
  background: transparent;
  color: var(--color-error);
  border-color: var(--color-error-dim);
}
.btn-danger:hover {
  background: var(--color-error);
  color: #fff;
}

.btn-success {
  background: var(--color-success);
  color: var(--bg-primary);
  border-color: var(--color-success);
  font-weight: 600;
}
.btn-success:hover {
  background: var(--color-success-dim);
  box-shadow: var(--shadow-success);
}

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

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-sm);
}

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 10px var(--space-6); font-size: 14px; }

/* ─── Inputs ────────────────────────────────────────────────── */
.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.input-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.input-field {
  width: 100%;
  padding: 9px var(--space-3);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.input-field:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}
.input-field::placeholder {
  color: var(--text-disabled);
}
.input-field.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(255,0,0,0.15);
}
.input-field.success {
  border-color: var(--color-success);
}

.input-hint {
  font-size: 11px;
  color: var(--text-muted);
}
.input-hint.error { color: var(--color-error); }
.input-hint.success { color: var(--color-success); }

/* ─── Modal ─────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}
.modal-backdrop.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  width: 90%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: translateY(16px) scale(0.98);
  transition: transform var(--transition-normal);
}
.modal-backdrop.active .modal {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.modal-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-subtle);
}

/* ─── Toast Notifications ───────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 12px var(--space-4);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: 13px;
  color: var(--text-primary);
  pointer-events: all;
  min-width: 280px;
  max-width: 400px;
  transform: translateX(120%);
  transition: transform var(--transition-normal);
}
.toast.show { transform: translateX(0); }
.toast.hide { transform: translateX(120%); }

.toast-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.toast.success .toast-dot { background: var(--color-success); box-shadow: 0 0 6px var(--color-success); }
.toast.error .toast-dot   { background: var(--color-error); box-shadow: 0 0 6px var(--color-error); }
.toast.warning .toast-dot { background: var(--color-warning); box-shadow: 0 0 6px var(--color-warning); }
.toast.info .toast-dot    { background: var(--color-accent); box-shadow: 0 0 6px var(--color-accent); }

.toast-msg { flex: 1; }

/* ─── Context Menu ──────────────────────────────────────────── */
.context-menu {
  position: fixed;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-1);
  min-width: 160px;
  z-index: var(--z-tooltip);
  box-shadow: var(--shadow-lg);
  animation: ctx-appear 0.1s ease;
}

@keyframes ctx-appear {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

.ctx-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.ctx-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.ctx-item.danger:hover {
  background: rgba(255,0,0,0.12);
  color: var(--color-error);
}
.ctx-separator {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-1) 0;
}

/* ─── Status Dot ────────────────────────────────────────────── */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.saved    { background: var(--color-success); box-shadow: 0 0 5px var(--color-success); }
.status-dot.unsaved  { background: var(--color-warning); box-shadow: 0 0 5px var(--color-warning); }
.status-dot.error    { background: var(--color-error);   box-shadow: 0 0 5px var(--color-error); }
.status-dot.syncing  { background: var(--color-accent);  animation: pulse 1s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ─── Spinner ────────────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-default);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  flex-shrink: 0;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Badge ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
}
.badge-accent  { background: var(--color-accent-glow); color: var(--color-accent); }
.badge-success { background: rgba(136,252,3,0.15); color: var(--color-success); }
.badge-warning { background: rgba(252,215,3,0.15); color: var(--color-warning); }
.badge-error   { background: rgba(255,0,0,0.15); color: var(--color-error); }
.badge-muted   { background: var(--bg-tertiary); color: var(--text-muted); }

/* ─── Tabs ───────────────────────────────────────────────────── */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--border-default);
}
.tab-btn {
  padding: 10px var(--space-4);
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  font-weight: 500;
}
.tab-btn.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}
.tab-btn:hover:not(.active) {
  color: var(--text-secondary);
}
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ─── Empty State ────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-16);
  text-align: center;
  color: var(--text-muted);
}
.empty-state svg { opacity: 0.4; }
.empty-state h3  { font-size: 15px; color: var(--text-secondary); }
.empty-state p   { font-size: 13px; max-width: 280px; line-height: 1.6; }

/* ─── Loading Overlay ────────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-4);
  transition: opacity var(--transition-slow);
}
.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

/* ─── Toggle Switch ──────────────────────────────────────────── */
.toggle-switch { position: relative; width: 36px; height: 20px; display: inline-block; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute; inset: 0;
  background: var(--bg-quaternary, #30363d);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.toggle-track::after {
  content: '';
  position: absolute;
  left: 2px; top: 50%; transform: translateY(-50%);
  width: 14px; height: 14px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}
.toggle-switch input:checked + .toggle-track { background: var(--color-accent); border-color: var(--color-accent); }
.toggle-switch input:checked + .toggle-track::after { transform: translateY(-50%) translateX(16px); }

/* ─── Responsive (Mobile) ─── */
@media (max-width: 1024px) {
  .modal {
    width: 90vw;
    max-width: 90vw;
    margin: 20px auto;
    max-height: 90vh;
  }
  /* Modal adjustments for mobile */
  .modal-body {
    overflow-y: auto;
    flex: 1;
    min-height: 0;
  }
  /* Toast container adjusted for mobile */
  #toast-container {
    bottom: 20px;
    right: 50%;
    transform: translateX(50%);
    width: 90vw;
    max-width: 400px;
  }
  
  .toast {
    width: 100%;
    box-sizing: border-box;
  }
  
  .btn {
    padding: 8px 12px;
  }
}