/* ============================================================
   NGUYỄN ROASTERY — COMPONENTS
   components.css — Nav, Footer, Buttons, Cards, Forms
   ============================================================ */

/* ── Navigation ─────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 900;
  display: flex;
  align-items: center;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  background: rgba(249, 246, 240, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.navbar.transparent {
  background: transparent;
}

.navbar.dark-nav {
  background: rgba(26, 18, 11, 0.92);
  backdrop-filter: blur(12px);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.navbar-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.navbar-logo img {
  height: 44px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--clr-text);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.nav-link:hover { color: var(--clr-accent-dark); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); transform-origin: left; }
.nav-link.active { color: var(--clr-accent-dark); }

.navbar.transparent .nav-link,
.navbar.dark-nav .nav-link { color: rgba(255,255,255,0.85); }
.navbar.transparent .nav-link:hover,
.navbar.dark-nav .nav-link:hover { color: var(--clr-accent); }

/* Nav actions (right side) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.nav-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text);
  transition: background var(--transition-fast), color var(--transition-fast);
  position: relative;
}

.nav-icon-btn:hover {
  background: var(--clr-accent-light);
  color: var(--clr-accent-dark);
}

.navbar.transparent .nav-icon-btn,
.navbar.dark-nav .nav-icon-btn { color: rgba(255,255,255,0.85); }
.navbar.transparent .nav-icon-btn:hover,
.navbar.dark-nav .nav-icon-btn:hover { background: rgba(255,255,255,0.12); color: var(--clr-accent); }

.cart-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  background: var(--clr-accent);
  color: var(--clr-white);
  border-radius: var(--radius-full);
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 3px;
  line-height: 1;
  border: 2px solid var(--clr-bg);
  transform: scale(0);
  transition: transform var(--transition-fast);
}

.cart-badge.visible { transform: scale(1); }

/* Language & Currency Toggle */
.lang-currency-toggle {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: 0.78rem;
  font-weight: 600;
  padding: var(--sp-1) var(--sp-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
  cursor: pointer;
  transition: all var(--transition-fast);
  background: transparent;
  color: var(--clr-text);
  letter-spacing: 0.04em;
}

.lang-currency-toggle:hover {
  background: var(--clr-accent-light);
  border-color: var(--clr-accent);
}

.navbar.transparent .lang-currency-toggle,
.navbar.dark-nav .lang-currency-toggle {
  color: rgba(255,255,255,0.85);
  border-color: rgba(255,255,255,0.3);
}

.lang-currency-toggle .divider-v {
  width: 1px;
  height: 12px;
  background: currentColor;
  opacity: 0.3;
  margin: 0 var(--sp-1);
}

/* Mobile hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.navbar.transparent .hamburger span,
.navbar.dark-nav .hamburger span { background: white; }

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--clr-bg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-lg);
  z-index: 899;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-slow);
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-link {
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 1rem;
  color: var(--clr-text);
  transition: background var(--transition-fast);
}

.mobile-nav-link:hover {
  background: var(--clr-accent-light);
  color: var(--clr-accent-dark);
}

.mobile-menu-footer {
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--clr-border);
  display: flex;
  gap: var(--sp-3);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .lang-currency-toggle .toggle-text { display: none; }
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--clr-dark);
  color: rgba(255,255,255,0.75);
  padding: var(--sp-16) 0 var(--sp-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-10);
  margin-bottom: var(--sp-12);
}

.footer-brand .footer-logo {
  height: 48px;
  margin-bottom: var(--sp-5);
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 280px;
}

.footer-socials {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: white;
}

.footer-heading {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--sp-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer-link {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  transition: color var(--transition-fast);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: var(--sp-3);
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--clr-accent);
}

.footer-bottom {
  padding-top: var(--sp-6);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
}
@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  white-space: nowrap;
  font-family: var(--font-sans);
  text-decoration: none;
}

.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-dark);
  border-color: var(--clr-accent);
}

.btn-primary:hover {
  background: var(--clr-accent-dark);
  border-color: var(--clr-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212, 163, 115, 0.4);
}

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

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

.btn-secondary:hover {
  background: var(--clr-text);
  color: var(--clr-white);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--clr-white);
  color: var(--clr-dark);
  border-color: var(--clr-white);
}

.btn-white:hover {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: var(--clr-dark);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--clr-white);
  border-color: rgba(255,255,255,0.5);
}

.btn-ghost:hover {
  border-color: var(--clr-white);
  background: rgba(255,255,255,0.1);
}

.btn-dark {
  background: var(--clr-dark);
  color: var(--clr-white);
  border-color: var(--clr-dark);
}

.btn-dark:hover {
  background: var(--clr-accent-dark);
  border-color: var(--clr-accent-dark);
  transform: translateY(-2px);
}

.btn-sm {
  padding: var(--sp-2) var(--sp-4);
  font-size: 0.8rem;
}

.btn-lg {
  padding: var(--sp-4) var(--sp-8);
  font-size: 1rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
  font-size: 1rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── Product Card ─────────────────────────────────────────── */
.product-card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-slow);
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.product-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--clr-bg-secondary);
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card-img img {
  transform: scale(1.08);
}

.product-card-badge {
  position: absolute;
  top: var(--sp-4);
  left: var(--sp-4);
}

.product-card-actions {
  position: absolute;
  top: var(--sp-4);
  right: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  opacity: 0;
  transform: translateX(8px);
  transition: all var(--transition-base);
}

.product-card:hover .product-card-actions {
  opacity: 1;
  transform: translateX(0);
}

.product-action-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: white;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text);
  transition: all var(--transition-fast);
}

.product-action-btn:hover {
  background: var(--clr-accent);
  color: white;
}

.product-card-body {
  padding: var(--sp-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-notes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
  margin-bottom: var(--sp-3);
}

.note-tag {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px var(--sp-2);
  background: var(--clr-accent-light);
  color: var(--clr-accent-dark);
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
}

.product-card-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: var(--sp-1);
  line-height: 1.3;
}

.product-card-desc {
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
  margin-bottom: var(--sp-4);
  flex: 1;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-top: auto;
}

.product-price {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--clr-text);
}

.product-price .price-label {
  font-size: 0.72rem;
  font-weight: 400;
  color: var(--clr-text-muted);
  margin-right: 2px;
  font-family: var(--font-sans);
}

/* ── Blog Card ───────────────────────────────────────────── */
.blog-card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.blog-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--clr-bg-secondary);
}

.blog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card-img img {
  transform: scale(1.05);
}

.blog-card-body {
  padding: var(--sp-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-category {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-accent-dark);
  margin-bottom: var(--sp-3);
}

.blog-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--clr-text);
  margin-bottom: var(--sp-3);
  transition: color var(--transition-fast);
}

.blog-card:hover .blog-card-title { color: var(--clr-accent-dark); }

.blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: var(--sp-4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  margin-top: auto;
}

.blog-card-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--clr-text-muted); }

/* ── Forms ───────────────────────────────────────────────── */
.form-group {
  margin-bottom: var(--sp-5);
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: var(--sp-2);
  color: var(--clr-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  background: var(--clr-white);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--clr-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  appearance: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(212,163,115,0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%232C1E16' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-error {
  font-size: 0.8rem;
  color: #e53e3e;
  margin-top: var(--sp-1);
}

/* ── Section Header ──────────────────────────────────────── */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--sp-12);
}

.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-accent-dark);
  margin-bottom: var(--sp-3);
  display: block;
}

.section-header h2 {
  margin-bottom: var(--sp-4);
}

.section-header p {
  font-size: 1.05rem;
}

/* ── Hero Banner (page banners) ──────────────────────────── */
.page-hero {
  background: var(--clr-dark);
  padding: var(--sp-16) 0 var(--sp-12);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(212,163,115,0.12) 0%, transparent 70%);
}

.page-hero h1 { color: white; position: relative; }
.page-hero p  { color: rgba(255,255,255,0.65); position: relative; margin-top: var(--sp-3); }

/* ── Quantity Selector ───────────────────────────────────── */
.qty-selector {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  width: fit-content;
}

.qty-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--clr-text);
  transition: background var(--transition-fast);
  user-select: none;
}

.qty-btn:hover { background: var(--clr-accent-light); }

.qty-input {
  width: 48px;
  height: 36px;
  text-align: center;
  border: none;
  border-left: 1.5px solid var(--clr-border);
  border-right: 1.5px solid var(--clr-border);
  font-size: 0.95rem;
  font-weight: 600;
  background: transparent;
  -moz-appearance: textfield;
  outline: none;
}

.qty-input::-webkit-inner-spin-button,
.qty-input::-webkit-outer-spin-button { -webkit-appearance: none; }

/* ── Weight Selector ─────────────────────────────────────── */
.weight-options {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.weight-option {
  padding: var(--sp-2) var(--sp-4);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.weight-option:hover { border-color: var(--clr-accent); color: var(--clr-accent-dark); }
.weight-option.selected {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: var(--clr-dark);
  font-weight: 700;
}

/* ── Roast Level Bar ─────────────────────────────────────── */
.roast-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.roast-track {
  flex: 1;
  height: 6px;
  background: var(--clr-bg-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.roast-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-accent-light), var(--clr-accent-dark));
  border-radius: var(--radius-full);
  transition: width 1s ease;
}

.roast-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  min-width: 60px;
}

/* ── Cart Item ───────────────────────────────────────────── */
.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--sp-4);
  align-items: center;
  padding: var(--sp-5) 0;
  border-bottom: 1px solid var(--clr-border);
}

.cart-item-img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  object-fit: cover;
  background: var(--clr-bg-secondary);
}

.cart-item-info h4 {
  font-size: 1rem;
  margin-bottom: var(--sp-1);
}

.cart-item-variant {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-3);
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.cart-item-remove {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  text-decoration: underline;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.cart-item-remove:hover { color: #e53e3e; }

.cart-item-price {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}

/* ── Payment Method ──────────────────────────────────────── */
.payment-method {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: var(--sp-3);
}

.payment-method:hover { border-color: var(--clr-accent); }
.payment-method.selected {
  border-color: var(--clr-accent);
  background: var(--clr-accent-light);
}

.payment-method input[type="radio"] { accent-color: var(--clr-accent); }

.payment-method-icon {
  width: 40px;
  height: 28px;
  object-fit: contain;
  flex-shrink: 0;
}

/* ── Category Filter Tabs ────────────────────────────────── */
.filter-tabs {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--sp-8);
}

.filter-tab {
  padding: var(--sp-2) var(--sp-5);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: white;
  color: var(--clr-text);
}

.filter-tab:hover { border-color: var(--clr-accent); color: var(--clr-accent-dark); }
.filter-tab.active {
  background: var(--clr-dark);
  border-color: var(--clr-dark);
  color: white;
}

/* ── Breadcrumb ──────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.82rem;
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-6);
}

.breadcrumb a { transition: color var(--transition-fast); }
.breadcrumb a:hover { color: var(--clr-accent-dark); }
.breadcrumb-sep { color: var(--clr-border); }

/* ── Order Summary Box ───────────────────────────────────── */
.order-summary-box {
  background: var(--clr-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
}

.order-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-3) 0;
  font-size: 0.9rem;
}

.order-summary-row.total {
  font-size: 1.15rem;
  font-weight: 700;
  font-family: var(--font-serif);
  border-top: 1.5px solid var(--clr-border);
  margin-top: var(--sp-2);
  padding-top: var(--sp-4);
}

/* ── Empty State ─────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--sp-16) var(--sp-6);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--sp-4);
  opacity: 0.4;
}

/* ── Back to top button ──────────────────────────────────── */
#back-to-top {
  position: fixed;
  bottom: var(--sp-8);
  left: var(--sp-6);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--clr-accent);
  color: var(--clr-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-base);
  z-index: 800;
  cursor: pointer;
}

#back-to-top.visible {
  opacity: 1;
  pointer-events: all;
}

#back-to-top:hover {
  background: var(--clr-accent-dark);
  transform: translateY(-3px);
}