/* =========================================================
   AdventureNET — Componente Globale
   =========================================================
   Autor: Negoiță Andreea Iuliana | Coordonator: conf.univ.dr. Toader Florentina
   
   Ce conține:
   - Butoane (primary, secondary, ghost, icon)
   - Carduri
   - Badges
   - Inputs & Forms (base)
   - Modale (base structure)
   - Toast notifications
   - Loading states
   ========================================================= */

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 44px; /* Tap target minim pentru mobil */
  white-space: nowrap;
}

.btn:focus-visible {
  box-shadow: var(--color-focus-ring);
}

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: white;
  box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--color-primary-rgb), 0.4);
  text-decoration: none;
}

.btn-primary:active {
  transform: translateY(0);
}

/* Success Button */
.btn-success {
  background: linear-gradient(135deg, var(--color-success), #16a34a);
  color: white;
  box-shadow: 0 4px 15px var(--color-success-glow);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--color-success-glow);
  text-decoration: none;
}

/* Secondary Button */
.btn-secondary {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid rgba(var(--color-primary-rgb), 0.25);
}

.btn-secondary:hover {
  background: rgba(var(--color-primary-rgb), 0.2);
  text-decoration: none;
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text);
  text-decoration: none;
}

/* Icon Button */
.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-lg);
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-icon:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  min-height: 36px;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  min-height: 52px;
}

/* ---------------------------------------------------------
   Cards
   --------------------------------------------------------- */
.card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
}

.card-sm {
  padding: var(--space-6);
  border-radius: var(--radius-xl);
}

.card-glass {
  background: rgba(30, 30, 60, 0.7);
  border-color: rgba(var(--color-success-rgb), 0.25);
}

/* ---------------------------------------------------------
   Badges
   --------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
}

.badge-success {
  background: var(--color-success-light);
  color: #86efac;
  border-color: rgba(var(--color-success-rgb), 0.3);
}

.badge-warning {
  background: var(--color-warning-light);
  color: #fcd34d;
  border-color: rgba(var(--color-warning-rgb), 0.3);
}

.badge-danger {
  background: var(--color-danger-light);
  color: #fda4af;
  border-color: rgba(var(--color-danger-rgb), 0.3);
}

.badge-info {
  background: var(--color-info-light);
  color: #93c5fd;
  border-color: rgba(var(--color-info-rgb), 0.3);
}

/* ---------------------------------------------------------
   Forms (Base)
   --------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-4);
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base); /* >= 16px pentru a evita zoom pe iOS */
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 44px;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--color-focus-ring);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

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

/* ---------------------------------------------------------
   Loading States
   --------------------------------------------------------- */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-surface) 25%,
    var(--color-surface-2) 50%,
    var(--color-surface) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

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

/* ---------------------------------------------------------
   Icons (Phosphor)
   --------------------------------------------------------- */
.icon {
  width: 1.25em;
  height: 1.25em;
  flex-shrink: 0;
}

.icon-sm {
  width: 1em;
  height: 1em;
}

.icon-lg {
  width: 1.5em;
  height: 1.5em;
}

.icon-xl {
  width: 2em;
  height: 2em;
}

/* ---------------------------------------------------------
   Backdrop / Overlay
   --------------------------------------------------------- */
.backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-backdrop);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
}

/* ---------------------------------------------------------
   PWA Install Button (Global)
   --------------------------------------------------------- */
.pwa-install-btn {
  display: none; /* Hidden by default, shown via JS */
  position: fixed;
  bottom: calc(var(--safe-area-bottom) + 80px);
  right: var(--space-4);
  z-index: var(--z-fixed);
}

.pwa-install-btn.visible {
  display: flex;
}

/* ---------------------------------------------------------
   Security Info (for auth pages)
   --------------------------------------------------------- */
.security-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(var(--color-success-rgb), 0.15);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.security-info i {
  color: var(--color-success);
}

/* ---------------------------------------------------------
   Chatbot FAB (Floating Action Button)
   --------------------------------------------------------- */
.chatbot-fab {
  position: fixed;
  bottom: calc(var(--safe-area-bottom) + 24px);
  right: var(--space-4);
  width: 60px;
  height: 60px;
  padding: 0;
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  z-index: var(--z-fixed);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.chatbot-fab:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 40px rgba(99, 102, 241, 0.5);
}

.chatbot-fab .icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

/* Hide desktop elements on mobile */
@media (max-width: 640px) {
  .hide-mobile {
    display: none !important;
  }
}

/* Hide mobile elements on desktop */
@media (min-width: 641px) {
  .hide-desktop {
    display: none !important;
  }
}