/* ==========================================================================
   MusePub - Classical Music Publishing E-Commerce
   A premium design system for saxophone books & sheet music
   ========================================================================== */

/* --------------------------------------------------------------------------
   Google Fonts
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Source+Sans+3:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400;1,500&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&display=swap');

/* --------------------------------------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Backgrounds */
  --color-bg: #FAF8F5;
  --color-bg-alt: #F3EDE4;
  --color-surface: #FFFFFF;

  /* Colors - Text */
  --color-text: #3D3530;
  --color-text-secondary: #7A6F66;
  --color-headings: #2C1810;

  /* Colors - Brand */
  --color-primary: #8B4513;
  --color-primary-hover: #A0522D;
  --color-primary-light: rgba(139, 69, 19, 0.08);
  --color-accent: #C9A96E;
  --color-accent-light: #E8D5A8;

  /* Colors - UI */
  --color-border: #E0D5C8;
  --color-success: #4A7C59;
  --color-danger: #9B2335;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', 'Segoe UI', Roboto, sans-serif;
  --font-accent: 'Cormorant Garamond', Georgia, serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.6;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --container-max: 1200px;
  --container-padding: var(--space-5);

  /* Borders & Radii */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(44, 24, 16, 0.06), 0 1px 2px rgba(44, 24, 16, 0.04);
  --shadow-md: 0 4px 12px rgba(44, 24, 16, 0.07), 0 2px 4px rgba(44, 24, 16, 0.04);
  --shadow-lg: 0 10px 30px rgba(44, 24, 16, 0.1), 0 4px 8px rgba(44, 24, 16, 0.05);
  --shadow-xl: 0 20px 50px rgba(44, 24, 16, 0.12), 0 8px 16px rgba(44, 24, 16, 0.06);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 500;
  --z-modal: 600;
  --z-toast: 700;
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* Focus styles for accessibility */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

::selection {
  background-color: var(--color-accent-light);
  color: var(--color-headings);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-headings);
  line-height: var(--leading-tight);
  font-weight: 600;
}

h1 {
  font-size: var(--text-3xl);
  letter-spacing: -0.01em;
}

h2 {
  font-size: var(--text-2xl);
}

h3 {
  font-size: var(--text-xl);
}

h4 {
  font-size: var(--text-lg);
}

@media (min-width: 768px) {
  h1 {
    font-size: var(--text-4xl);
  }

  h2 {
    font-size: var(--text-3xl);
  }

  h3 {
    font-size: var(--text-2xl);
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: var(--text-5xl);
    letter-spacing: -0.02em;
  }
}

p + p {
  margin-top: var(--space-4);
}

.text-secondary {
  color: var(--color-text-secondary);
}

.text-accent {
  font-family: var(--font-accent);
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Layout - Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

@media (min-width: 768px) {
  .container {
    --container-padding: var(--space-8);
  }
}

.section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--space-20);
    padding-bottom: var(--space-20);
  }
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Decorative divider under section headings */
.section-header h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  margin: var(--space-4) auto 0;
  border-radius: var(--radius-full);
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

/* Use ::before for the blurred background so backdrop-filter doesn't
   create a stacking context that traps position:fixed children (the
   mobile nav drawer). */
.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: -1;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

@media (min-width: 768px) {
  .site-header .container {
    height: 72px;
  }
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-headings);
  text-decoration: none;
  letter-spacing: 0.08em;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  color: var(--color-headings);
  opacity: 0.85;
}

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  color: var(--color-headings);
  letter-spacing: 0.08em;
  line-height: 1;
}

.logo-muse {
  font-weight: 700;
}

.logo-pub {
  font-weight: 300;
}

.logo-tagline {
  font-family: var(--font-accent);
  font-weight: 400;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-left: var(--space-1);
  display: none;
}

@media (min-width: 640px) {
  .logo-tagline {
    display: inline;
  }
}

/* Desktop Navigation */
.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
}

/* .main-nav: inline flex row on desktop, slide-in drawer on mobile */
@media (min-width: 768px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
  }
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

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

.nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
}

/* Header Actions (Cart, etc.) */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

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

.cart-btn:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.cart-btn svg {
  width: 22px;
  height: 22px;
}

.cart-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-surface);
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  line-height: 1;
}

/* Hamburger Toggle */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-toggle:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle-icon {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 20px;
}

.nav-toggle-icon span {
  display: block;
  height: 2px;
  background-color: currentColor;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-fast);
  transform-origin: center;
}

/* Hamburger open state */
.nav-toggle.open .nav-toggle-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open .nav-toggle-icon span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open .nav-toggle-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Groups the cart icon + hamburger together on the right side of the header */
.header-mobile-actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

@media (min-width: 768px) {
  .header-mobile-actions {
    display: none;
  }
}

/* Mobile cart icon button — shown only on mobile, hidden on desktop */
.mobile-cart-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 40px;
  height: 40px;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  text-decoration: none;
}

.mobile-cart-btn:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.mobile-cart-badge {
  display: none;
  position: absolute;
  top: 0;
  right: 0;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  font-size: 12px;
  font-weight: 700;
  line-height: 20px;
  text-align: center;
  color: #fff;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.mobile-nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

.nav-toggle:hover,
.mobile-nav-toggle:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

@media (min-width: 768px) {
  .nav-toggle,
  .mobile-nav-toggle {
    display: none;
  }
}

.nav-toggle-icon span,
.mobile-nav-toggle span {
  display: block;
  height: 2px;
  width: 20px;
  background-color: currentColor;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav-toggle.open .nav-toggle-icon span:nth-child(1),
.mobile-nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open .nav-toggle-icon span:nth-child(2),
.mobile-nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open .nav-toggle-icon span:nth-child(3),
.mobile-nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.nav-mobile {
  position: fixed;
  inset: 64px 0 0 0;
  z-index: var(--z-overlay);
  background-color: var(--color-surface);
  padding: var(--space-4);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  border-top: 1px solid var(--color-border);
}

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

@media (min-width: 768px) {
  .nav-mobile {
    display: none;
  }
}

.nav-mobile .nav-link {
  display: flex;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  border-radius: var(--radius-md);
}

.nav-mobile .nav-link + .nav-link {
  margin-top: var(--space-1);
}

/* .main-nav acts as mobile drawer on small screens */
@media (max-width: 767px) {
  .main-nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 64px 0 0 0;
    z-index: var(--z-overlay);
    background-color: var(--color-surface);
    padding: var(--space-4);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    border-top: 1px solid var(--color-border);
  }

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

  .main-nav .nav-link {
    display: flex;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-lg);
    border-radius: var(--radius-md);
  }

  .main-nav .nav-link + .nav-link {
    margin-top: var(--space-1);
  }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  padding: var(--space-16) var(--space-5);
  background-color: var(--color-bg-alt);
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    min-height: 480px;
    padding: var(--space-20) var(--space-8);
  }
}

@media (min-width: 1024px) {
  .hero {
    min-height: 560px;
    padding: var(--space-24) var(--space-8);
  }
}

/* Subtle gradient overlay for readability over background images */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(243, 237, 228, 0.6) 0%,
    rgba(232, 213, 168, 0.35) 100%
  );
  pointer-events: none;
}

.hero-inner {
  display: flex;
  justify-content: center;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero-content h1 {
  margin-bottom: var(--space-8);
  color: var(--color-headings);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

/* Hero button size */
.btn-hero {
  padding: var(--space-4) var(--space-10);
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: 0.02em;
}

@media (min-width: 768px) {
  .btn-hero {
    padding: var(--space-5) var(--space-12);
    font-size: var(--text-xl);
  }
}

/* Decorative treble clef / musical ornament (pure CSS) */
.hero-ornament {
  position: absolute;
  right: -40px;
  bottom: -20px;
  width: 200px;
  height: 200px;
  opacity: 0.04;
  font-size: 180px;
  font-family: var(--font-heading);
  color: var(--color-headings);
  pointer-events: none;
  user-select: none;
}

@media (min-width: 1024px) {
  .hero-ornament {
    right: 40px;
    bottom: 20px;
    width: 280px;
    height: 280px;
    font-size: 260px;
    opacity: 0.05;
  }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
@keyframes btn-pop {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}

.btn-added {
  background-color: var(--color-success) !important;
  border-color: var(--color-success) !important;
  color: #fff !important;
  animation: btn-pop 0.3s ease-out forwards;
  pointer-events: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.4;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  text-decoration: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Primary */
.btn-primary {
  color: var(--color-surface);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-surface);
  box-shadow: 0 4px 14px rgba(139, 69, 19, 0.25);
}

/* Secondary (outline) */
.btn-secondary {
  color: var(--color-primary);
  background-color: transparent;
  border-color: var(--color-primary);
}

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

/* Outline */
.btn-outline {
  color: var(--color-primary);
  background-color: transparent;
  border-color: var(--color-primary);
}

.btn-outline:hover {
  color: var(--color-surface);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(139, 69, 19, 0.25);
}

/* Accent / Gold */
.btn-accent {
  color: var(--color-headings);
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-light);
}

.btn-accent:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 4px 14px rgba(201, 169, 110, 0.3);
}

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

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

/* Danger */
.btn-danger {
  color: var(--color-surface);
  background-color: var(--color-danger);
  border-color: var(--color-danger);
}

.btn-danger:hover {
  background-color: #b42a3e;
  border-color: #b42a3e;
  box-shadow: 0 4px 14px rgba(155, 35, 53, 0.25);
}

/* Add to Cart */
.btn-add-to-cart {
  color: var(--color-surface);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  width: 100%;
  padding: var(--space-3) var(--space-5);
}

.btn-add-to-cart:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-surface);
  box-shadow: 0 4px 14px rgba(139, 69, 19, 0.25);
}

.btn-add-to-cart svg {
  width: 18px;
  height: 18px;
}

/* Size Variants */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

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

/* Disabled */
.btn:disabled,
.btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Icon-only button */
.btn-icon {
  padding: var(--space-2);
  width: 40px;
  height: 40px;
}

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

/* --------------------------------------------------------------------------
   Product Grid
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

/* --------------------------------------------------------------------------
   Product Card
   -------------------------------------------------------------------------- */
.product-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

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

.product-card-image {
  display: block;
  position: relative;
  width: 100%;
  padding-top: 130%; /* ~4:5 aspect for book covers */
  background-color: var(--color-bg-alt);
  overflow: hidden;
}

.product-card-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card-image img {
  transform: scale(1.03);
}

/* Badge on card image */
.product-card-image .badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 1;
}

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

.product-card-category {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

.product-card-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-headings);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-1);
}

.product-card-title a {
  color: inherit;
  text-decoration: none;
}

.product-card-title a:hover {
  color: var(--color-primary);
}

.product-card-author {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
}

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

.product-card-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Price Display
   -------------------------------------------------------------------------- */
.price {
  font-family: var(--font-accent);
  font-weight: 600;
  color: var(--color-headings);
}

.price-current {
  font-size: var(--text-2xl);
  line-height: 1;
}

.price-original {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  text-decoration: line-through;
  font-weight: 400;
  margin-left: var(--space-2);
}

.price-sale {
  color: var(--color-danger);
}

.price-group {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

/* Large price (for detail pages) */
.price-lg .price-current {
  font-size: var(--text-3xl);
}

/* --------------------------------------------------------------------------
   Badges / Tags
   -------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.4;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-primary {
  color: var(--color-surface);
  background-color: var(--color-primary);
}

.badge-accent {
  color: var(--color-headings);
  background-color: var(--color-accent-light);
}

.badge-success {
  color: var(--color-surface);
  background-color: var(--color-success);
}

.badge-danger {
  color: var(--color-surface);
  background-color: var(--color-danger);
}

.badge-outline {
  color: var(--color-text-secondary);
  background-color: transparent;
  border: 1px solid var(--color-border);
}

/* Tag (smaller, more compact) */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

a.tag-link {
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

a.tag-link:hover {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

/* --------------------------------------------------------------------------
   Category Filter Pills
   -------------------------------------------------------------------------- */
.filter-bar {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.filter-bar::-webkit-scrollbar {
  display: none;
}

/* Extra padding so first/last pills don't touch edges on scroll */
.filter-bar::before,
.filter-bar::after {
  content: '';
  flex-shrink: 0;
  width: 1px;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  white-space: nowrap;
  cursor: pointer;
  flex-shrink: 0;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.filter-pill:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.filter-pill.active {
  color: var(--color-surface);
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.filter-pill:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.filter-pill .count {
  font-size: var(--text-xs);
  opacity: 0.7;
}

/* Aliases for app.js class names */
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  margin-bottom: var(--space-4);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  white-space: nowrap;
  cursor: pointer;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast);
}

.pill:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.pill-active {
  color: var(--color-surface) !important;
  background-color: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
}

/* --------------------------------------------------------------------------
   Cart Summary
   -------------------------------------------------------------------------- */
.cart-summary {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.cart-summary-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-headings);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

/* Legacy cart item styles removed — active styles live in the Cart Page
   section further below. */

/* Quantity Stepper */
.qty-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.qty-stepper button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.qty-stepper button:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
}

.qty-stepper input {
  width: 40px;
  height: 32px;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
  border: none;
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  background: transparent;
  -moz-appearance: textfield;
}

.qty-stepper input::-webkit-outer-spin-button,
.qty-stepper input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Cart Totals */
.cart-totals {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 2px solid var(--color-border);
}

.cart-totals-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.cart-totals-row.total {
  padding-top: var(--space-3);
  margin-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-headings);
}

.cart-totals-row.total .price {
  font-size: var(--text-2xl);
}

.cart-actions {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   Form Inputs
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-headings);
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--color-danger);
  margin-left: 2px;
}

.form-input {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form-input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.6;
}

.form-input:hover {
  border-color: var(--color-accent-light);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 169, 110, 0.15);
}

.form-input.error {
  border-color: var(--color-danger);
}

.form-input.error:focus {
  box-shadow: 0 0 0 3px rgba(155, 35, 53, 0.1);
}

/* Select */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%237A6F66' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
}

/* Textarea */
textarea.form-input {
  min-height: 100px;
  resize: vertical;
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  margin-top: var(--space-1);
}


/* Inline form (e.g. order lookup) */
.form-inline {
  display: flex;
  gap: var(--space-3);
}

.form-inline .form-input {
  flex: 1;
}

@media (max-width: 639px) {
  .form-inline {
    flex-direction: column;
  }

  .form-inline .btn {
    width: 100%;
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--color-headings);
  color: rgba(250, 248, 245, 0.7);
  padding-top: var(--space-16);
  padding-bottom: var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
  }
}

.footer-brand {
  max-width: 280px;
  margin-bottom: var(--space-2);
}

.footer-brand .logo {
  color: var(--color-bg);
  margin-bottom: var(--space-4);
  font-size: var(--text-2xl);
}

.footer-brand .logo:hover {
  color: var(--color-bg);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  margin-bottom: var(--space-3);
}

.footer-logo .logo-text {
  font-family: var(--font-body);
  font-size: var(--text-2xl);
  color: var(--color-bg);
  letter-spacing: 0.08em;
  line-height: 1;
}

.footer-logo .logo-muse {
  font-weight: 700;
}

.footer-logo .logo-pub {
  font-weight: 300;
}

.footer-logo:hover .logo-text {
  opacity: 0.85;
}

.footer-logo-icon {
  width: 32px;
  height: 32px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  color: rgba(250, 248, 245, 0.55);
  margin: 0;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-bg);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(250, 248, 245, 0.6);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(250, 248, 245, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: rgba(250, 248, 245, 0.4);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  color: rgba(250, 248, 245, 0.5);
  border: 1px solid rgba(250, 248, 245, 0.15);
  transition:
    color var(--transition-fast),
    border-color var(--transition-fast),
    background-color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: rgba(201, 169, 110, 0.1);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

/* --------------------------------------------------------------------------
   Modal Overlay
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  background-color: rgba(44, 24, 16, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  position: relative;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: translateY(16px) scale(0.97);
  transition: transform var(--transition-base);
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: var(--text-lg);
}

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

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

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  max-height: calc(90vh - 140px);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg);
}

/* --------------------------------------------------------------------------
   Toast / Notification
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

@media (max-width: 639px) {
  .toast-container {
    left: var(--space-4);
    right: var(--space-4);
    top: var(--space-4);
    align-items: stretch;
  }
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  max-width: 380px;
  animation: toast-slide-in var(--transition-spring) forwards;
}

.toast.toast-exit {
  animation: toast-slide-out var(--transition-base) forwards;
}

@keyframes toast-slide-in {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toast-slide-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(24px);
  }
}

@media (max-width: 639px) {
  @keyframes toast-slide-in {
    from {
      opacity: 0;
      transform: translateY(-16px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes toast-slide-out {
    from {
      opacity: 1;
      transform: translateY(0);
    }
    to {
      opacity: 0;
      transform: translateY(-16px);
    }
  }
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
}

.toast-content {
  flex: 1;
  min-width: 0;
}

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

.toast-message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-snug);
}

.toast-dismiss {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.toast-dismiss:hover {
  color: var(--color-text);
  background-color: var(--color-bg-alt);
}

/* Toast variants */
.toast-success {
  border-left: 3px solid var(--color-success);
}

.toast-success .toast-icon {
  color: var(--color-success);
}

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

.toast-error .toast-icon {
  color: var(--color-danger);
}

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

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

/* --------------------------------------------------------------------------
   Loading Spinner
   -------------------------------------------------------------------------- */
.spinner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.spinner::after {
  content: '';
  width: 24px;
  height: 24px;
  border: 2.5px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-sm::after {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-lg::after {
  width: 36px;
  height: 36px;
  border-width: 3px;
}

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

/* Full-page loading state */
.loading-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-16) var(--space-5);
  min-height: 300px;
}

.loading-screen .spinner::after {
  width: 36px;
  height: 36px;
  border-width: 3px;
}

.loading-screen p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Inline loading for buttons */
.btn .spinner::after {
  width: 16px;
  height: 16px;
  border-width: 2px;
  border-color: rgba(255, 255, 255, 0.3);
  border-top-color: currentColor;
}

/* --------------------------------------------------------------------------
   Empty State
   -------------------------------------------------------------------------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--space-5);
  min-height: 300px;
}

.empty-state-icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-accent-light);
}

.empty-state-icon svg {
  width: 48px;
  height: 48px;
  stroke-width: 1.5;
}

.empty-state h3 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-headings);
  margin-bottom: var(--space-2);
}

.empty-state p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  max-width: 360px;
  margin-bottom: var(--space-6);
}

/* --------------------------------------------------------------------------
   Breadcrumbs
   -------------------------------------------------------------------------- */
.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.breadcrumbs a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--color-primary);
}

.breadcrumbs .separator {
  margin: 0 var(--space-1);
  opacity: 0.4;
  font-size: var(--text-xs);
}

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

/* --------------------------------------------------------------------------
   Pagination
   -------------------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-8) 0;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.pagination-btn:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.pagination-btn.active {
  color: var(--color-surface);
  background-color: var(--color-primary);
  font-weight: 600;
}

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 40px;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   Alert / Message Box
   -------------------------------------------------------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.alert-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
}

.alert-info {
  color: var(--color-headings);
  background-color: var(--color-accent-light);
  border: 1px solid var(--color-accent);
}

.alert-success {
  color: #2d5a3a;
  background-color: #e8f5ed;
  border: 1px solid #a8d5b8;
}

.alert-danger {
  color: #7d1d2c;
  background-color: #fae8eb;
  border: 1px solid #e8b0b9;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */

/* Visually hidden, screen-reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* Margin utilities */
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Display */
.hidden { display: none; }

@media (min-width: 640px) {
  .sm\:hidden { display: none; }
  .sm\:block { display: block; }
  .sm\:flex { display: flex; }
}

@media (min-width: 768px) {
  .md\:hidden { display: none; }
  .md\:block { display: block; }
  .md\:flex { display: flex; }
}

@media (min-width: 1024px) {
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
  .lg\:flex { display: flex; }
}

/* Width */
.w-full { width: 100%; }

/* Background */
.bg-alt {
  background-color: var(--color-bg-alt);
}

/* Divider */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-6) 0;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.animate-fade-in {
  animation: fade-in var(--transition-base) ease forwards;
}

.animate-fade-in-up {
  animation: fade-in-up var(--transition-base) ease forwards;
}

.animate-scale-in {
  animation: scale-in var(--transition-base) ease forwards;
}

/* Stagger animation for grid children */
.stagger-children > * {
  opacity: 0;
  animation: fade-in-up var(--transition-base) ease forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 60ms; }
.stagger-children > *:nth-child(3) { animation-delay: 120ms; }
.stagger-children > *:nth-child(4) { animation-delay: 180ms; }
.stagger-children > *:nth-child(5) { animation-delay: 240ms; }
.stagger-children > *:nth-child(6) { animation-delay: 300ms; }
.stagger-children > *:nth-child(7) { animation-delay: 360ms; }
.stagger-children > *:nth-child(8) { animation-delay: 420ms; }
.stagger-children > *:nth-child(9) { animation-delay: 480ms; }

/* --------------------------------------------------------------------------
   Reduced Motion Preference
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .product-card:hover {
    transform: none;
  }

  .product-card:hover .product-card-image img {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .site-header,
  .site-footer,
  .nav-mobile,
  .toast-container,
  .modal-overlay,
  .filter-bar,
  .cart-actions .btn,
  .btn-add-to-cart {
    display: none !important;
  }

  body {
    background: white;
    color: black;
    font-size: 12pt;
  }

  .product-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }

  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 0.8em;
    color: #666;
  }
}

/* --------------------------------------------------------------------------
   Page Layout Utilities (used by app.js)
   -------------------------------------------------------------------------- */
.page-section {
  padding-top: var(--space-8);
  padding-bottom: var(--space-16);
}

.page-title {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-headings);
  margin-bottom: var(--space-2);
}

.page-description {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  max-width: 640px;
}

.back-link {
  display: inline-block;
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.error-message {
  color: var(--color-danger);
  padding: var(--space-4);
  background: rgba(155, 35, 53, 0.06);
  border-radius: var(--radius-md);
}

.processing-message {
  text-align: center;
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
}

/* --------------------------------------------------------------------------
   Product Detail Page
   -------------------------------------------------------------------------- */
.product-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}

@media (min-width: 768px) {
  .product-detail {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.detail-image-col {
  position: relative;
}

.detail-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: opacity 0.2s ease;
}

/* Product image gallery thumbnails */
.gallery-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.gallery-thumb {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md, 6px);
  border: 2px solid transparent;
  padding: 0;
  cursor: pointer;
  overflow: hidden;
  background: #f5f5f5;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.gallery-thumb:hover {
  border-color: var(--color-primary, #8B4513);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.gallery-thumb-active {
  border-color: var(--color-primary, #8B4513);
  box-shadow: 0 0 0 2px rgba(139, 69, 19, 0.25);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.detail-info-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.detail-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-headings);
  line-height: var(--leading-tight);
}

@media (min-width: 768px) {
  .detail-title {
    font-size: var(--text-4xl);
  }
}

.detail-composer {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin: 0;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.detail-description {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: var(--leading-normal);
}

.detail-description p {
  margin-bottom: var(--space-4);
}

.detail-description p:last-child {
  margin-bottom: 0;
}

.detail-description strong {
  font-weight: 700;
  color: var(--color-headings);
}

.detail-description em {
  font-style: italic;
}

/* Product detail metadata (Composer, Instrumentation, etc.) */
.detail-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2) var(--space-4);
  margin: var(--space-6) 0;
  padding: var(--space-5);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.detail-meta dt {
  font-weight: 700;
  color: var(--color-headings);
  white-space: nowrap;
}

.detail-meta dd {
  margin: 0;
  color: var(--color-text);
}

.detail-meta dd a {
  color: var(--color-primary);
  text-decoration: underline;
}

.detail-meta dd a:hover {
  color: var(--color-primary-hover);
}

.detail-price {
  font-family: var(--font-accent);
  font-size: var(--text-3xl);
  font-weight: 600;
  color: var(--color-primary);
}

.detail-price.free {
  color: var(--color-success);
  font-size: var(--text-xl);
}

.digital-note {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-style: italic;
  margin: 0;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-2);
}

.detail-actions .btn {
  min-width: 200px;
}

/* --------------------------------------------------------------------------
   Type Badge (used by app.js)
   -------------------------------------------------------------------------- */
.type-badge {
  display: inline-block;
  padding: 2px var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Cart Page Layout (app.js classes)
   -------------------------------------------------------------------------- */
.cart-page {
  min-height: 50vh;
  overflow-x: hidden;
}

.cart-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  min-width: 0;
}

@media (min-width: 768px) {
  .cart-layout {
    grid-template-columns: 1fr 360px;
  }
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  min-width: 0;
}

/* Cart item: always two rows — image+info on top, controls below */
.cart-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.cart-item-image-link {
  flex-shrink: 0;
}

.cart-item-image {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-title {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-headings);
  text-decoration: none;
  margin-bottom: var(--space-1);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cart-item-title:hover {
  color: var(--color-primary);
}

.cart-item-price {
  font-family: var(--font-accent);
  font-size: var(--text-base);
  color: var(--color-primary);
}

/* Controls always on their own full-width row */
.cart-item-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-basis: 100%;
  justify-content: flex-end;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
}

.cart-item-qty-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

@media (min-width: 768px) {
  .cart-item {
    padding: var(--space-4);
    gap: var(--space-4);
  }

  .cart-item-image {
    width: 80px;
    height: 80px;
  }

  .cart-item-price {
    font-size: var(--text-lg);
  }

  .cart-summary {
    position: sticky;
    top: 100px;
  }
}

.cart-qty-select {
  padding: var(--space-1) var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  background: var(--color-surface);
}

.cart-remove-btn {
  background: none;
  border: none;
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-1);
  line-height: 1;
  transition: color var(--transition-fast);
}

.cart-remove-btn:hover {
  color: var(--color-danger);
}

.cart-summary {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
}

.cart-summary-heading {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-headings);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  font-size: var(--text-base);
  color: var(--color-text);
}

.cart-total-row {
  font-weight: 700;
  font-size: var(--text-lg);
  border-top: 2px solid var(--color-border);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: var(--space-6);
}

.checkout-btn {
  font-size: var(--text-lg);
  padding: var(--space-4) var(--space-8);
}

.price {
  font-family: var(--font-accent);
  font-weight: 600;
  color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   Empty State (extend existing)
   -------------------------------------------------------------------------- */
.empty-state-text {
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
}

/* --------------------------------------------------------------------------
   Order Details & Lookup
   -------------------------------------------------------------------------- */
.lookup-form {
  max-width: 480px;
  margin-bottom: var(--space-8);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.form-input {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  transition: border-color var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.order-details {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--space-6);
  max-width: 640px;
}

.order-meta {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.order-meta p {
  margin-bottom: var(--space-2);
}

.order-items {
  margin-bottom: var(--space-6);
}

.order-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.order-item:last-child {
  border-bottom: none;
}

.order-item-info {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.order-item-title {
  font-weight: 600;
}

.order-item-qty {
  color: var(--color-text-secondary);
}

.order-item-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.order-summary-row {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-base);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
}

.order-total {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xl);
  font-weight: 700;
  padding-top: var(--space-4);
  border-top: 2px solid var(--color-border);
  margin-top: var(--space-2);
}

.download-link {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  text-decoration: none;
}

.download-note {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   Section Headings on Home Page
   -------------------------------------------------------------------------- */
.section-heading {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-headings);
  text-align: center;
  margin-bottom: var(--space-8);
  position: relative;
  padding-bottom: var(--space-3);
}

.section-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.section-link {
  display: block;
  text-align: center;
  margin-top: var(--space-6);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}

.section-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Contact Page
   -------------------------------------------------------------------------- */
.contact-page {
  max-width: 640px;
  margin: 0 auto;
}

.contact-header {
  margin-bottom: var(--space-8);
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.contact-form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .contact-form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-form .form-group label .required {
  color: var(--color-danger);
}

.contact-form .form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M4 6l4 4 4-4' stroke='%237A6F66' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
  cursor: pointer;
}

.contact-submit-btn {
  width: 100%;
  margin-top: var(--space-2);
}

.contact-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-16) var(--space-4);
}

.contact-success-icon {
  font-size: 4rem;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  line-height: 1;
}

.contact-success .page-title {
  margin-bottom: var(--space-4);
}

.contact-success .page-description {
  margin-bottom: var(--space-8);
  max-width: 400px;
}

/* --------------------------------------------------------------------------
   Listing Page Layout (filter sidebar + main content)
   -------------------------------------------------------------------------- */
.listing-header {
  margin-bottom: var(--space-4);
}

.listing-layout {
  display: flex;
  gap: var(--space-8);
  align-items: flex-start;
}

.listing-main {
  flex: 1;
  min-width: 0;
}

/* -- Filter Sidebar -- */
.filter-sidebar {
  width: 240px;
  flex-shrink: 0;
  position: sticky;
  top: var(--space-4);
  max-height: calc(100vh - var(--space-8));
  overflow-y: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.filter-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.filter-sidebar-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-headings);
  margin: 0;
}

.filter-sidebar-close {
  display: none;
  background: none;
  border: none;
  font-size: var(--text-2xl);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.filter-sidebar-close:hover {
  color: var(--color-text);
}

/* Filter Groups */
.filter-group {
  margin-bottom: var(--space-4);
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-group-title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 var(--space-3) 0;
}

.filter-group-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* Checkbox filters */
.filter-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.filter-checkbox:hover {
  background-color: var(--color-primary-light);
}

.filter-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.filter-checkbox-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.filter-checkbox-count {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  background: var(--color-bg-alt);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

/* -- Active Filter Tags -- */
.active-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.active-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-primary);
  background: var(--color-primary-light);
  border: 1px solid rgba(139, 69, 19, 0.2);
  border-radius: var(--radius-full);
}

.active-filter-remove {
  background: none;
  border: none;
  font-size: var(--text-base);
  color: var(--color-primary);
  cursor: pointer;
  padding: 0;
  line-height: 1;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.active-filter-remove:hover {
  opacity: 1;
}

.active-filter-clear {
  background: none;
  border: none;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.active-filter-clear:hover {
  color: var(--color-danger);
}

/* -- Toolbar (result count + sort) -- */
.listing-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.listing-result-count {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  flex: 1;
}

.listing-sort {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

.listing-sort-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.listing-sort-select {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-2) var(--space-6) var(--space-2) var(--space-3);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%237A6F66' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  transition: border-color var(--transition-fast);
}

.listing-sort-select:hover,
.listing-sort-select:focus {
  border-color: var(--color-primary);
  outline: none;
}

/* -- Mobile Filter Button -- */
.filter-mobile-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

.filter-mobile-toggle:hover {
  border-color: var(--color-primary);
}

.filter-mobile-toggle svg {
  flex-shrink: 0;
}

.filter-mobile-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-surface);
  background: var(--color-primary);
  border-radius: 50%;
}

/* -- Overlay (mobile) -- */
.filter-overlay {
  display: none;
}

/* -- Mobile breakpoint (<768px): sidebar becomes slide-in overlay -- */
@media (max-width: 767px) {
  .listing-toolbar {
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .listing-result-count {
    order: 3;
    flex-basis: 100%;
    padding-top: var(--space-1);
  }

  .filter-mobile-toggle {
    order: 1;
  }

  .listing-sort {
    order: 2;
    margin-left: auto;
  }

  .filter-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 300px;
    max-width: 85vw;
    max-height: 100vh;
    z-index: var(--z-modal);
    border: none;
    border-radius: 0;
    padding: var(--space-6);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    box-shadow: none;
  }

  .filter-sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .filter-sidebar-close {
    display: block;
  }

  .filter-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: calc(var(--z-modal) - 1);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
  }

  .filter-overlay.open {
    opacity: 1;
    pointer-events: auto;
  }

  .filter-mobile-toggle {
    display: inline-flex;
  }

  .listing-layout {
    gap: 0;
  }

  /* Larger touch targets on mobile */
  .filter-checkbox {
    padding: var(--space-3) var(--space-2);
    font-size: var(--text-base);
  }

  .filter-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
  }
}

/* --------------------------------------------------------------------------
   Loading Spinner (app.js)
   -------------------------------------------------------------------------- */
.spinner {
  display: flex;
  justify-content: center;
  padding: var(--space-12) 0;
}

.spinner::after {
  content: '';
  width: 36px;
  height: 36px;
  border: 3px 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); }
}