/* ==========================================================================
   Design System & Variable Declarations (Wagashi Modern Theme)
   ========================================================================== */
:root {
  /* Color Palette - Elegant Traditional Japanese Wagashi Scheme */
  --primary-hue: 350; /* Azuki / Red Bean Dark Crimson */
  --primary: hsl(var(--primary-hue), 45%, 26%);
  --primary-light: hsl(var(--primary-hue), 42%, 38%);
  --primary-dark: hsl(var(--primary-hue), 50%, 15%);
  --primary-bg: hsl(var(--primary-hue), 45%, 96%); /* Pale Sakura Pink background */

  --accent-hue: 43; /* Miyabi Gold */
  --accent: hsl(var(--accent-hue), 85%, 44%);
  --accent-light: hsl(var(--accent-hue), 80%, 54%);
  --accent-dark: hsl(var(--accent-hue), 90%, 32%);
  --accent-bg: hsl(var(--accent-hue), 100%, 97%);

  --sakura-accent: hsl(350, 65%, 92%); /* Soft Sakura Accent */

  --neutral-dark: hsl(200, 15%, 12%); /* Urushi Black */
  --neutral-muted: hsl(200, 8%, 42%);
  --neutral-light: hsl(30, 10%, 91%);
  --neutral-bg: hsl(350, 25%, 98%); /* Washi Paper Off-white */
  --white: hsl(0, 0%, 100%);
  --error: hsl(0, 75%, 45%);
  --error-bg: hsl(0, 100%, 98%);
  
  /* Typography */
  --font-base: 'Noto Sans JP', sans-serif;
  --font-display: 'Outfit', 'Noto Sans JP', sans-serif;
  --font-serif: 'Shippori Mincho', 'Noto Sans JP', serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4.5rem;

  /* UI Tokens */
  --border-radius-sm: 3px;
  --border-radius-md: 6px;
  --border-radius-lg: 12px;
  --shadow-sm: 0 4px 8px rgba(40, 20, 20, 0.02);
  --shadow-md: 0 10px 24px rgba(40, 20, 20, 0.04);
  --shadow-lg: 0 20px 40px rgba(40, 20, 20, 0.08);
  
  /* Motion */
  --transition-fast: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px; /* Account for fixed header */
}

body {
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.85;
  color: var(--neutral-dark);
  background-color: var(--neutral-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

/* Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--primary);
  color: var(--white);
  padding: 0.8rem 1.6rem;
  border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
  z-index: 9999;
  font-weight: bold;
  transition: top var(--transition-fast);
  border: 1px solid var(--accent);
}

.skip-link:focus {
  top: 0;
  outline: 3px solid var(--neutral-dark);
}

*:focus-visible {
  outline: 3px dashed var(--accent);
  outline-offset: 4px;
}

/* ==========================================================================
   Reusable Components
   ========================================================================== */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

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

.section-subtitle {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.25em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--spacing-xs);
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 2.3rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.08em;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 30px;
  height: 1px;
  background-color: var(--accent);
  margin: 0.8rem auto 0 auto;
}

.section-header p {
  color: var(--neutral-muted);
  max-width: 650px;
  margin: var(--spacing-sm) auto 0 auto;
  font-size: 0.95rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2.4rem;
  font-weight: 700;
  border-radius: var(--border-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
}

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

.btn-primary:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(70, 20, 20, 0.1);
}

.btn-secondary {
  background-color: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.btn-secondary:hover {
  background-color: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(180, 110, 30, 0.15);
}

/* Badges */
.badge-accent {
  background-color: var(--primary-bg);
  color: var(--primary-light);
  border: 1px solid var(--sakura-accent);
  padding: 0.4rem 1.2rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  display: inline-block;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.08em;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(120, 30, 30, 0.05);
  transition: padding var(--transition-normal), box-shadow var(--transition-normal);
  padding: 1.4rem 0;
}

.main-header.scrolled {
  padding: 0.8rem 0;
  box-shadow: var(--shadow-sm);
  background-color: rgba(255, 255, 255, 0.98);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-dark);
}

.logo-icon {
  font-size: 1.6rem;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.main-nav a {
  font-weight: 700;
  color: var(--neutral-dark);
  font-size: 0.95rem;
}

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

.main-nav a.nav-cta {
  background-color: var(--primary-bg);
  color: var(--primary);
  border: 1.5px solid var(--sakura-accent);
  padding: 0.5rem 1.4rem;
  border-radius: var(--border-radius-sm);
  font-weight: 700;
  transition: all var(--transition-fast);
}

.main-nav a.nav-cta:hover {
  background-color: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.mobile-menu-toggle .bar {
  width: 100%;
  height: 2px;
  background-color: var(--primary-dark);
  transition: all var(--transition-normal);
}

/* Mobile Navigation */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.98);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-menu[hidden] {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  display: flex;
}

.mobile-menu nav ul {
  list-style: none;
  text-align: center;
}

.mobile-menu nav li {
  margin-bottom: var(--spacing-md);
}

.mobile-menu nav a {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--neutral-dark);
  display: block;
}

.mobile-menu nav a.nav-cta {
  background-color: var(--primary);
  color: var(--white);
  padding: 0.8rem 2.2rem;
  border-radius: var(--border-radius-sm);
}

/* Mobile Toggle animations */
.mobile-menu-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   Hero Section (Japanese Modern style)
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-top: 110px;
  overflow: hidden;
  color: var(--white);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(40, 10, 12, 0.85) 0%, rgba(20, 5, 6, 0.7) 100%);
  z-index: -1;
}

.hero-content {
  max-width: 820px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
}

.hero-badge {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 0.4rem 1.4rem;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  display: inline-block;
  margin-bottom: var(--spacing-md);
  backdrop-filter: blur(5px);
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  line-height: 1.4;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-content .highlight {
  color: var(--sakura-accent);
  display: inline-block;
  background: linear-gradient(transparent 70%, rgba(255, 200, 205, 0.25) 70%);
}

.hero-content p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 680px;
  margin: 0 auto var(--spacing-lg) auto;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

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

.hero-actions .btn-secondary {
  background-color: var(--accent);
  border-color: var(--accent);
}

.hero-actions .btn-secondary:hover {
  background-color: var(--accent-light);
  border-color: var(--accent-light);
}

.hero-actions .btn-secondary:focus-visible {
  outline-color: var(--white);
}

/* Wave boundary styling */
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  transform: rotate(180deg);
}

.hero-wave svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 60px;
}

.hero-wave .shape-fill {
  fill: var(--neutral-bg);
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
  background-color: var(--neutral-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.about-card {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(120, 30, 30, 0.04);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--spacing-xs);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.about-card-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-xs);
}

.about-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--primary-dark);
  font-weight: 700;
}

.about-card p {
  color: var(--neutral-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Products Section (Menu List)
   ========================================================================== */
.products-section {
  background-color: var(--white);
}

.products-tab-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.menu-block {
  background-color: var(--neutral-bg);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(120, 30, 30, 0.04);
}

.menu-block-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  border-bottom: 1px solid var(--primary-light);
  padding-bottom: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.header-prefix {
  color: var(--accent);
  font-size: 0.85rem;
}

.menu-block-header h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--primary-dark);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-md);
}

.menu-item {
  background-color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.02);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.menu-item:hover {
  border-color: var(--sakura-accent);
  box-shadow: 0 4px 10px rgba(120, 30, 30, 0.05);
}

.menu-item-text {
  flex: 1;
}

.menu-item h4 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--neutral-dark);
  margin-bottom: 0.15rem;
}

.menu-item p {
  font-size: 0.85rem;
  color: var(--neutral-muted);
  line-height: 1.6;
}

.menu-item-price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary-light);
  white-space: nowrap;
}

.tax-in {
  font-size: 0.75rem;
  color: var(--neutral-muted);
  font-weight: 400;
  font-family: var(--font-base);
}

/* ==========================================================================
   Showcase Section (Matcha visual)
   ========================================================================== */
.gallery-showcase {
  background-color: var(--primary-bg);
}

.showcase-inner-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.showcase-image {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--white);
  cursor: zoom-in;
}

.zoomable-img {
  width: 100%;
  transition: transform var(--transition-normal);
}

.showcase-image:hover .zoomable-img {
  transform: scale(1.03);
}

.showcase-content h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  color: var(--primary-dark);
  margin-bottom: var(--spacing-sm);
  font-weight: 700;
}

.showcase-content p {
  color: var(--neutral-dark);
  margin-bottom: var(--spacing-md);
}

.matcha-grade {
  display: inline-flex;
  flex-direction: column;
  background-color: var(--primary);
  color: var(--white);
  padding: 0.8rem 2.2rem;
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--accent);
}

.grade-label {
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.85;
}

.grade-val {
  font-size: 1.25rem;
  font-weight: 800;
}

/* ==========================================================================
   Seasonal Section (until-found)
   ========================================================================== */
.seasonal-section {
  background-color: var(--white);
}

.seasonal-tabs-wrapper {
  max-width: 800px;
  margin: var(--spacing-lg) auto 0 auto;
  background-color: var(--neutral-bg);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(120,30,30,0.05);
}

.tab-buttons {
  display: flex;
  gap: 0.4rem;
  border-bottom: 2px solid var(--neutral-light);
  padding-bottom: 0.8rem;
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
  -scrollbar-width: none;
}

.tab-buttons::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  background: var(--white);
  border: 1px solid var(--neutral-light);
  padding: 0.6rem 1.4rem;
  font-weight: 700;
  color: var(--neutral-muted);
  cursor: pointer;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  font-family: var(--font-serif);
}

.tab-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.tab-btn.active {
  color: var(--white);
  background-color: var(--primary);
  border-color: var(--primary);
}

/* Panel */
.tab-panel {
  display: none;
}

.tab-panel:not([hidden]) {
  display: block;
}

.seasonal-card {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
  border-top: 5px solid var(--accent);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

.seasonal-bg-icon {
  position: absolute;
  bottom: -25px;
  right: -15px;
  font-size: 7rem;
  opacity: 0.06;
  user-select: none;
  color: var(--primary);
}

.seasonal-card h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--primary-dark);
  font-weight: 700;
}

.seasonal-desc {
  color: var(--neutral-dark);
  font-size: 0.95rem;
  max-width: 90%;
}

.seasonal-period {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-top: 0.3rem;
}

/* ==========================================================================
   Shop Info & Access Section
   ========================================================================== */
.shop-section {
  background-color: var(--white);
}

.shop-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: var(--spacing-lg);
  align-items: start;
}

.shop-visual-card {
  background-color: var(--neutral-bg);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-light);
}

.shop-img {
  width: 100%;
}

.shop-quote {
  padding: var(--spacing-md);
  background-color: var(--white);
}

.shop-quote p {
  font-style: italic;
  font-size: 0.95rem;
  color: var(--neutral-dark);
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.quote-author {
  font-weight: 700;
  color: var(--primary);
  font-size: 0.85rem;
}

.shop-details-wrapper {
  background-color: var(--white);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th, .info-table td {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--neutral-light);
  text-align: left;
}

.info-table th {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--primary-dark);
  width: 28%;
}

.phone-link-large {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--primary-light);
  font-family: var(--font-display);
}

.table-sub-note {
  font-size: 0.8rem;
  color: var(--neutral-muted);
}

.info-table tr:last-child th, .info-table tr:last-child td {
  border-bottom: none;
}

/* ==========================================================================
   Reserve Form Section (:has() based validation)
   ========================================================================== */
.reserve-form-section {
  background-color: var(--neutral-bg);
}

.form-wrapper-container {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  max-width: 700px;
  margin: 0 auto;
  border: 1px solid rgba(120,30,30,0.05);
}

.wagashi-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form-group-grid {
  display: flex;
  flex-direction: column;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: var(--spacing-md);
}

.field-group label {
  font-weight: 700;
  color: var(--neutral-dark);
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.required {
  background-color: var(--error);
  color: var(--white);
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

.input-wrapper {
  position: relative;
}

.field-group input, .field-group textarea, .field-group select {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: var(--border-radius-sm);
  border: 1.5px solid var(--neutral-muted);
  background-color: var(--white);
  transition: all var(--transition-fast);
  outline: none;
}

.field-group textarea {
  resize: vertical;
}

.field-group input::placeholder, .field-group textarea::placeholder {
  color: var(--neutral-muted);
  opacity: 0.55;
}

.field-group input:focus, .field-group textarea:focus, .field-group select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(120, 30, 30, 0.1);
}

.help-text {
  font-size: 0.8rem;
  color: var(--neutral-muted);
  margin-top: 0.1rem;
}

/* Validation */
.error-message {
  color: var(--error);
  font-size: 0.8rem;
  font-weight: 500;
  display: none;
  margin-top: 0.2rem;
}

.validation-icon {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  pointer-events: none;
}

.field-group textarea + .validation-icon {
  top: 24px;
}

/* Parent :has() user-invalid styling */
.field-group:has(:user-invalid) input,
.field-group:has(:user-invalid) textarea,
.field-group:has(:user-invalid) select {
  border-color: var(--error);
  background-color: var(--error-bg);
}

.field-group:has(:user-invalid) input:focus,
.field-group:has(:user-invalid) textarea:focus,
.field-group:has(:user-invalid) select:focus {
  box-shadow: 0 0 0 4px rgba(217, 48, 37, 0.15);
}

.field-group:has(:user-invalid) .error-message {
  display: block;
}

.field-group:has(:user-invalid) .validation-icon::after {
  content: '⚠️';
}

/* Fallback class */
.field-group.has-error-fallback input,
.field-group.has-error-fallback textarea,
.field-group.has-error-fallback select {
  border-color: var(--error);
  background-color: var(--error-bg);
}

.field-group.has-error-fallback .error-message {
  display: block;
}

.field-group.has-error-fallback .validation-icon::after {
  content: '⚠️';
}

/* Submit Actions */
.btn-submit {
  background-color: var(--primary);
  color: var(--white);
  width: 100%;
  padding: 1.1rem;
  border-radius: var(--border-radius-sm);
  font-size: 1.1rem;
  position: relative;
  overflow: hidden;
  border-color: var(--primary);
}

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

.spinner {
  display: none;
  width: 22px;
  height: 22px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--white);
  animation: spin 0.85s linear infinite;
  position: absolute;
}

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

.btn-submit.loading .btn-text {
  visibility: hidden;
}

.btn-submit.loading .spinner {
  display: block;
}

/* Success Card */
.form-success-message {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--primary-bg);
  border-radius: var(--border-radius-md);
  border: 1px dashed var(--sakura-accent);
  margin-top: var(--spacing-sm);
}

.success-icon {
  width: 60px;
  height: 60px;
  background-color: var(--primary);
  color: var(--white);
  font-size: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm) auto;
  border: 2px solid var(--accent);
}

.form-success-message h3 {
  color: var(--primary-dark);
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.form-success-message p {
  font-size: 0.95rem;
  color: var(--neutral-dark);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.main-footer {
  background-color: var(--primary-dark);
  color: var(--sakura-accent);
  padding: var(--spacing-xl) 0 var(--spacing-md) 0;
  border-top: 3px solid var(--accent);
}

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

.footer-info {
  margin-bottom: var(--spacing-md);
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.footer-info p {
  opacity: 0.8;
  color: var(--white);
  font-size: 0.9rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--sakura-accent);
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.6;
}

/* ==========================================================================
   Modal (Zoom Viewer)
   ========================================================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  max-width: 90%;
  max-height: 90%;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

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

.modal-content img {
  border-radius: var(--border-radius-sm);
  max-height: 85vh;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  color: var(--white);
  background: transparent;
  border: none;
  font-size: 3rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition-fast);
}

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

/* ==========================================================================
   Scroll-driven Fade/Translate Animation (Native & Fallback)
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    @keyframes fade-and-letter-space {
      from {
        opacity: 0;
        transform: translateY(40px);
        letter-spacing: -0.05em;
      }
      to {
        opacity: 1;
        transform: translateY(0);
        letter-spacing: normal;
      }
    }

    .scroll-trigger {
      animation: fade-and-letter-space auto linear forwards;
      animation-timeline: view();
      animation-range: entry 5% entry 35%;
    }
  }
}

/* JS Fallback style */
.js-scroll-animate {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.js-scroll-animate.animated {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */
@media (max-width: 992px) {
  .hero-content h1 {
    font-size: 2.6rem;
  }
  
  .showcase-inner-container, .shop-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .showcase-image, .shop-visual-card {
    max-width: 600px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-section {
    min-height: 70vh;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .section-container {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .menu-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .tab-btn {
    padding: 0.5rem 1rem;
  }
}