/* ============================================================
   FRENZA — Components
   Reusable UI component styles
   ============================================================ */

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.25);
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px) scale(1.02);
  filter: brightness(1.1);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.2);
}

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

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

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

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

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.btn-icon:hover {
  background: var(--surface);
  color: var(--text-primary);
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn-google {
  background: #ffffff;
  color: #1f1f1f;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-weight: var(--weight-medium);
  gap: var(--space-sm);
  width: 100%;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
}

.btn-google:hover {
  background: #f0f0f0;
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.btn-google svg,
.btn-google img {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--surface-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: var(--space-lg);
}

.card-title {
  font-size: var(--text-lg);
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.card-description {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-normal);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-md);
}

.card-price {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card-category {
  display: inline-block;
  text-transform: uppercase;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--primary-light);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.card-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  align-items: center;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--surface-border);
  transition: background var(--transition-base);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  list-style: none;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
  padding: var(--space-xs) 0;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-auth-btn {
  /* Combines .btn .btn-primary .btn-sm — apply those classes in HTML */
}

.nav-cart-btn {
  position: relative;
}

.cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: #ffffff;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-full);
  padding: 0 5px;
  line-height: 1;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-md);
  transition: background var(--transition-base);
}

.nav-user:hover {
  background: var(--surface);
}

.nav-user-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
}

.nav-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--surface-border);
}

.mobile-menu-btn {
  display: none;
}

.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  top: 72px;
  z-index: 49;
  background: rgba(10, 10, 15, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-xl);
  flex-direction: column;
  gap: var(--space-lg);
}

.nav-mobile.active {
  display: flex;
}

.nav-mobile .nav-link {
  font-size: var(--text-lg);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--surface-border);
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--bg-secondary);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  max-width: 440px;
  width: 90%;
  padding: var(--space-2xl);
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-lg);
}

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

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

.modal-title {
  font-size: var(--text-2xl);
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
}

.modal-close {
  color: var(--text-secondary);
  transition: color var(--transition-base);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  /* Content area */
}

/* ============================================================
   AUTH FORM
   ============================================================ */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.auth-input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.auth-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: var(--weight-medium);
}

.auth-input {
  background: var(--bg-tertiary);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  width: 100%;
}

.auth-input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

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

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-sm) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--surface-border);
}

.auth-divider span {
  color: var(--text-muted);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.auth-error {
  font-size: var(--text-sm);
  color: var(--error);
  margin-top: var(--space-xs);
}

.auth-switch {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-align: center;
  margin-top: var(--space-sm);
}

.auth-switch a {
  color: var(--accent);
  font-weight: var(--weight-medium);
}

.auth-switch a:hover {
  color: var(--accent-light);
  text-decoration: underline;
}

/* ============================================================
   FORMS
   ============================================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: var(--weight-medium);
}

.form-input,
.form-textarea,
.form-select {
  background: var(--bg-tertiary);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  width: 100%;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: var(--leading-normal);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238888a0' d='M6 8.825a.5.5 0 0 1-.354-.146L2.12 5.154a.5.5 0 1 1 .708-.708L6 7.618l3.171-3.171a.5.5 0 1 1 .708.708L6.354 8.679A.5.5 0 0 1 6 8.825z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  padding-right: var(--space-2xl);
  cursor: pointer;
}

.form-error {
  font-size: var(--text-xs);
  color: var(--error);
}

/* ============================================================
   BADGES & TAGS
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  line-height: 1;
}

.badge-primary {
  background: rgba(124, 58, 237, 0.2);
  color: var(--primary-light);
}

.badge-success {
  background: rgba(34, 197, 94, 0.2);
  color: var(--success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  border: 1px solid var(--surface-border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
  line-height: 1;
}

.tag:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(124, 58, 237, 0.1);
}

/* ============================================================
   EMPTY STATES
   ============================================================ */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.empty-state-icon {
  font-size: var(--text-5xl);
  color: var(--text-muted);
  line-height: 1;
}

.empty-state-title {
  font-size: var(--text-xl);
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: var(--weight-semibold);
}

.empty-state-text {
  color: var(--text-secondary);
  max-width: 360px;
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

/* ============================================================
   LOADING
   ============================================================ */
.skeleton {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.04) 50%,
    transparent 100%
  );
  animation: shimmer 1.5s infinite;
  transform: translateX(-100%);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--surface-border);
  border-top-color: var(--primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 4px;
}

/* ============================================================
   TOAST
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--surface-border);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  animation: slideInRight 0.3s ease forwards;
  pointer-events: auto;
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  max-width: 420px;
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--text-primary);
  flex: 1;
}

.toast-close {
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
  flex-shrink: 0;
}

.toast-close:hover {
  color: var(--text-primary);
}

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

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

.toast-info {
  border-left: 3px solid var(--accent);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--surface-border);
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-xl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2xl);
}

.footer-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

.footer-brand-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  line-height: var(--leading-normal);
}

.footer-title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  list-style: none;
}

.footer-link {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
  padding: 2px 0;
}

.footer-link:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--surface-border);
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: var(--space-md);
}

.footer-social-link {
  color: var(--text-muted);
  transition: color var(--transition-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
}

.footer-social-link:hover {
  color: var(--primary-light);
  background: var(--surface);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .nav-container {
    padding: 0 var(--space-md);
  }

  .nav-logo {
    font-size: var(--text-lg);
  }

  .nav-logo img {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
  }

  .nav-actions {
    gap: var(--space-xs);
  }

  .lang-selector-btn {
    padding: 4px 6px !important;
    font-size: 12px !important;
    gap: 4px !important;
  }

  .lang-label-name {
    display: none;
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .toast-container {
    left: var(--space-md);
    right: var(--space-md);
    bottom: var(--space-md);
  }

  .toast {
    min-width: 0;
    max-width: none;
  }
}

/* LANGUAGE SELECTOR DROPDOWN */
.lang-selector-dropdown {
  position: relative;
  display: inline-block;
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: rgba(18, 18, 26, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  min-width: 140px;
  max-height: 250px;
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px) scale(0.95);
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 1000;
  padding: var(--space-xs) 0;
}

/* RTL layouts for Arabic */
[dir="rtl"] .lang-dropdown-menu {
  left: 0;
  right: auto;
}

.lang-dropdown-menu.active {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.lang-dropdown-item {
  width: 100%;
  padding: 8px 16px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all var(--transition-fast);
  text-align: left;
}

[dir="rtl"] .lang-dropdown-item {
  text-align: right;
}

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

.lang-dropdown-item.active {
  background: rgba(124, 58, 237, 0.15);
  color: var(--primary-light);
  font-weight: var(--weight-semibold);
}

/* Scrollbar styling for language menu */
.lang-dropdown-menu::-webkit-scrollbar {
  width: 4px;
}
.lang-dropdown-menu::-webkit-scrollbar-track {
  background: transparent;
}
.lang-dropdown-menu::-webkit-scrollbar-thumb {
  background: var(--surface-border);
  border-radius: 2px;
}

/* Hide label on smaller screens to prevent overflow */
@media (max-width: 600px) {
  .lang-label-name {
    display: none;
  }
}