/* ============================================================
   COMPONENTS.CSS — Shared UI Components
   All reusable components: navigation, footer, buttons,
   cards, modals, toasts, forms, breadcrumbs, tabs, etc.
   ============================================================ */

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  background: rgba(248, 247, 244, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.nav-logo img {
  width: 32px;
  height: 32px;
  border-radius: 7px;
}

.nav-logo-text {
  font-size: 15px;
  font-weight: 700;
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

/* Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Cart Button */
.nav-cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.nav-cart-btn:hover {
  background: var(--bg2);
}

.nav-cart-btn svg {
  width: 20px;
  height: 20px;
}

.cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* Auth Button */
.nav-auth-btn {
  font-size: 13px;
  font-weight: 500;
  color: #ffffff;
  background: var(--text);
  padding: 8px 16px;
  border-radius: 6px;
  transition: opacity var(--transition-fast);
}

.nav-auth-btn:hover {
  opacity: 0.82;
}

/* Language Toggle */
.nav-lang-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
}

.nav-lang-toggle button {
  font-size: 12px;
  font-weight: 500;
  padding: 5px 10px;
  color: var(--muted);
  background: transparent;
  transition: all var(--transition-fast);
}

.nav-lang-toggle button.active {
  background: var(--accent);
  color: #ffffff;
}

/* Hamburger (mobile) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Mobile Drawer */
.nav-mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--surface);
  z-index: 200;
  padding: 80px 32px 32px;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-lg);
}

.nav-mobile-drawer.open {
  transform: translateX(0);
}

.nav-mobile-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.nav-mobile-drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.nav-mobile-drawer .nav-links {
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.nav-mobile-drawer .nav-links a {
  font-size: 16px;
}

.nav-mobile-drawer .nav-actions {
  margin-top: 24px;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg2);
  padding: 40px 48px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  margin-bottom: 12px;
}

.footer-logo img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-disclaimer {
  font-size: 12px;
  color: var(--muted);
  max-width: 400px;
  line-height: 1.5;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 32px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text);
}

.footer-copy {
  width: 100%;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 20px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}

/* ═══════════════════════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════════════════════ */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: #ffffff;
  background: var(--text);
  padding: 13px 24px;
  border-radius: 8px;
  transition: opacity var(--transition-fast);
  text-decoration: none;
}

.btn-primary:hover {
  opacity: 0.82;
  color: #ffffff;
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: #ffffff;
  background: var(--accent);
  padding: 13px 24px;
  border-radius: 8px;
  transition: opacity var(--transition-fast);
  text-decoration: none;
}

.btn-accent:hover {
  opacity: 0.82;
  color: #ffffff;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  background: transparent;
  padding: 13px 24px;
  border-radius: 8px;
  transition: color var(--transition-fast);
  text-decoration: none;
}

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  padding: 13px 24px;
  border-radius: 8px;
  transition: border-color var(--transition-fast);
  text-decoration: none;
}

.btn-outline:hover {
  border-color: var(--accent);
}

/* Size Variants */
.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

/* ═══════════════════════════════════════════════════════════════
   CARDS
   ═══════════════════════════════════════════════════════════════ */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.card:hover {
  border-color: var(--accent);
}

.card-header {
  margin-bottom: 16px;
}

.card-body {
  margin-bottom: 16px;
}

.card-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ═══════════════════════════════════════════════════════════════
   MODALS (Login / Register)
   ═══════════════════════════════════════════════════════════════ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

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

.modal {
  background: var(--surface);
  border-radius: var(--radius-xl);
  max-width: 420px;
  width: 90%;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 700;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--muted);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg2);
  color: var(--text);
}

/* Tabs (Login / Register) */
.modal-tabs {
  display: flex;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.modal-tabs button {
  flex: 1;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.modal-tabs button.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* Form */
.modal-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-form label {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 4px;
  display: block;
}

.modal-form input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.modal-form input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.modal-form .error {
  font-size: 12px;
  color: #ef4444;
  margin-top: 4px;
}

.modal-form button[type="submit"] {
  width: 100%;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 500;
  color: #ffffff;
  background: var(--accent);
  padding: 13px 24px;
  border-radius: 8px;
  transition: opacity var(--transition-fast);
}

.modal-form button[type="submit"]:hover {
  opacity: 0.82;
}

/* Divider */
.modal-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 12px;
}

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

/* ═══════════════════════════════════════════════════════════════
   TOAST NOTIFICATIONS
   ═══════════════════════════════════════════════════════════════ */

.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--surface);
  border-left: 4px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  box-shadow: var(--shadow-md);
  transform: translateX(120%);
  transition: transform 0.3s ease;
  pointer-events: auto;
  min-width: 260px;
}

.toast.show {
  transform: translateX(0);
}

.toast.success {
  border-left-color: #22c55e;
}

.toast.error {
  border-left-color: #ef4444;
}

.toast.info {
  border-left-color: var(--accent);
}

.toast-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.toast-msg {
  font-size: 12px;
  color: var(--muted);
}

/* ═══════════════════════════════════════════════════════════════
   FORM INPUTS (Shared)
   ═══════════════════════════════════════════════════════════════ */

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

.form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  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='%237a7670' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--text);
  background: var(--surface);
  min-height: 100px;
  resize: vertical;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-row {
  display: flex;
  gap: 16px;
}

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

.form-error {
  font-size: 12px;
  color: #ef4444;
  margin-top: 4px;
}

/* ═══════════════════════════════════════════════════════════════
   BREADCRUMB
   ═══════════════════════════════════════════════════════════════ */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: var(--text);
}

.breadcrumb .separator {
  color: var(--border);
}

.breadcrumb .separator::after {
  content: '\203A'; /* › */
}

.breadcrumb .current {
  color: var(--text);
  font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════════
   TABS
   ═══════════════════════════════════════════════════════════════ */

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.tab {
  padding: 12px 20px;
  font-size: 14px;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

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

.tab.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

/* ═══════════════════════════════════════════════════════════════
   QUANTITY SELECTOR
   ═══════════════════════════════════════════════════════════════ */

.qty-selector {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.qty-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  transition: background var(--transition-fast);
}

.qty-btn:hover {
  background: var(--bg2);
}

.qty-value {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
}

/* ═══════════════════════════════════════════════════════════════
   GOOGLE PLAY BUTTON
   ═══════════════════════════════════════════════════════════════ */

.gplay-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--text);
  color: #ffffff;
  padding: 13px 22px;
  border-radius: 10px;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.gplay-btn:hover {
  opacity: 0.82;
  color: #ffffff;
}

.gplay-btn svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.gplay-btn-text {
  display: flex;
  flex-direction: column;
}

.gplay-btn-small {
  font-size: 10px;
  opacity: 0.55;
  line-height: 1.2;
}

.gplay-btn-big {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — Mobile (max-width: 860px)
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 860px) {
  /* Navigation */
  .site-nav {
    padding: 14px 24px;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  /* Footer */
  .site-footer {
    padding: 32px 24px;
  }

  .footer-top {
    flex-direction: column;
  }

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

  /* Forms */
  .form-row {
    flex-direction: column;
    gap: 0;
  }
}