:root {
  --primary: #8fd3ce;
  --primary-dark: #6fbab4;
  --primary-light: #e0f2f1;
  --accent-indigo: #2c3e50;
  --wood-cedar: #f4ece1;
  --shoji-white: #ffffff;
  --text-main: #2d3436;
  --text-muted: #636e72;
  --bg-light: #f9fbfb;

  /* Compat aliases for checkout/payment pages */
  --color-bg: var(--bg-light);
  --color-surface: var(--shoji-white);
  --color-border: var(--primary-light);
  --color-mint-deep: var(--primary-dark);
  --color-mint-subtle: var(--primary-light);
  --color-text: var(--text-main);
  --color-accent: var(--accent-indigo);
  --color-muted: var(--text-muted);

  --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;

  --font-xs: 0.8125rem;
  --font-sm: 0.9375rem;
  --font-base: 1rem;
  --font-md: 1.25rem;
  --font-lg: 1.75rem;
  --font-xl: 2.25rem;

  --touch-target: 48px;
  --lh-tight: 1.25;
  --lh-base: 1.65;
  --lh-loose: 2.0;
  --shadow-shoji: 0 4px 20px -5px rgba(0, 0, 0, 0.08);
  --radius-minimal: 4px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-smooth: 16px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --space-10: 3rem;
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
}

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

@media (min-width: 768px) {
  :root {
    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2rem;
    --space-5: 2.5rem;
    --space-6: 3rem;
    --space-8: 4rem;
    --font-xs: 0.875rem;
    --font-sm: 1rem;
    --font-base: 1.125rem;
    --font-md: 1.5rem;
    --font-lg: 2rem;
    --font-xl: 2.75rem;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-main);
  background: #f9fbfb;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 300;
  line-height: var(--lh-tight);
  color: var(--accent-indigo);
  letter-spacing: 0.05em;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* --- Layout --- */
.container {
  max-width: 1100px;
  margin: var(--space-8) auto;
  background: var(--shoji-white);
  border-radius: var(--radius-minimal);
  overflow: hidden;
  box-shadow: var(--shadow-shoji);
  border: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
}

.container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary);
}

.container-inner,
.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* --- Navigation --- */
.main-header {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--primary-light);
  padding: var(--space-3) 0;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--space-4);
}

.logo {
  font-family: 'Inter', sans-serif;
  font-weight: 900;
  font-size: var(--font-md);
  color: var(--primary);
  letter-spacing: -0.05em;
  text-transform: uppercase;
  text-decoration: none;
  display: flex;
  align-items: center;
}

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

@media (min-width: 768px) {
  .logo-img {
    height: 56px;
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-links a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  font-size: var(--font-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: var(--transition);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 32px;
  height: 32px;
  padding: 4px;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.nav-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.nav-open span:nth-child(2) { opacity: 0; }
.nav-toggle.nav-open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: white;
    border-bottom: 1px solid var(--primary-light);
    padding: var(--space-4);
    gap: var(--space-3);
    box-shadow: var(--shadow-shoji);
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
  }
  .nav-links.nav-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a { font-size: var(--font-sm); }
}

/* --- Badge --- */
.badge {
  background: var(--primary);
  color: white;
  font-size: 0.7rem;
  font-weight: 900;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  margin-left: var(--space-1);
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: white;
  min-height: var(--touch-target);
  padding: var(--space-2) var(--space-6);
  font-weight: 500;
  border: 1px solid transparent;
  border-radius: var(--radius-minimal);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-size: var(--font-sm);
}

.btn-primary:hover {
  background: var(--shoji-white);
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: var(--shadow-shoji);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary);
  min-height: var(--touch-target);
  padding: var(--space-2) var(--space-6);
  font-weight: 500;
  border: 1px solid var(--primary);
  border-radius: var(--radius-minimal);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-size: var(--font-sm);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
  box-shadow: var(--shadow-shoji);
}

/* --- Utility Classes --- */
.page-section {
  padding: var(--space-8);
}

.page-title {
  font-weight: 300;
  letter-spacing: 0.1em;
  margin-top: var(--space-4);
}

.page-subtitle {
  max-width: 700px;
  margin: var(--space-4) auto;
  font-weight: 300;
  line-height: 2;
}

.text-center { text-align: center; }

/* --- Tags --- */
.scent-tag {
  display: inline-flex;
  align-items: center;
  background: var(--primary-light);
  color: var(--accent-indigo);
  padding: 4px 12px;
  border-radius: 100px;
  font-weight: 600;
  font-size: var(--font-xs);
}

/* --- Inputs --- */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
  font-size: 16px !important;
  min-height: var(--touch-target);
  padding: 12px 16px;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-minimal);
  background-color: white;
  color: var(--text-main);
  transition: var(--transition);
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

a:focus,
button:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* --- Product Grid --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  padding: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

/* --- Product Detail --- */
.product-hero {
  padding: var(--space-8);
}

.product-gallery {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.product-gallery img {
  width: 100%;
  display: block;
  transition: transform 0.5s ease;
}

.product-gallery:hover img {
  transform: scale(1.05);
}

.price-display {
  font-size: var(--font-lg);
  font-weight: 800;
  color: var(--text-main);
  margin: var(--space-2) 0;
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

.price-display small {
  font-size: var(--font-sm);
  color: var(--text-muted);
  font-weight: 400;
}

.cta-section {
  margin: var(--space-4) 0;
  padding: var(--space-4) 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.qty-input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.qty-input-wrapper input {
  width: 64px;
  padding: var(--space-1) var(--space-2);
  border: 2px solid #e2e8f0;
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-align: center;
}

/* --- Footer --- */
.main-footer {
  background: #f8fafc;
  margin-top: var(--space-8);
  border-top: 1px solid var(--primary-light);
  font-weight: 300;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  padding: var(--space-8) 0;
}

.footer-brand .logo {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-weight: 300;
  letter-spacing: 0.3em;
}

.footer-brand p {
  max-width: 300px;
  font-size: var(--font-sm);
  color: var(--text-muted);
}

.footer-nav h4,
.footer-contact h4 {
  font-size: var(--font-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary-dark);
  margin-bottom: var(--space-3);
  font-weight: 600;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--space-1);
}

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

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-contact p {
  font-size: var(--font-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-1);
}

.footer-bottom {
  background: white;
  padding: var(--space-4) 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  text-align: center;
}

.footer-bottom-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.footer-bottom p {
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin: 0;
}

.footer-legal {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
}

.footer-legal a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: var(--font-xs);
  transition: var(--transition);
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .footer-brand {
    grid-column: span 2;
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .container {
    margin: var(--space-4) var(--space-2);
  }
}

@media (max-width: 640px) {
  h1 {
    font-size: var(--font-lg);
  }

  .product-hero {
    padding: var(--space-4);
  }

  .grid-2 {
    padding: var(--space-2);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand {
    grid-column: span 1;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .footer-brand p {
    margin: var(--space-2) auto;
  }

  .footer-legal {
    flex-direction: column;
    gap: var(--space-1);
  }
}

/* --- Toast Notification --- */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
  max-width: 90vw;
}

.toast {
  pointer-events: auto;
  background: var(--accent-indigo);
  color: white;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-minimal);
  font-size: var(--font-xs);
  font-weight: 500;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.5s forwards;
  white-space: nowrap;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(12px); }
}

@media (max-width: 640px) {
  .toast { white-space: normal; text-align: center; }
}

/* --- Skeleton Loading --- */
.skeleton-page {
  padding: var(--space-8);
  max-width: 800px;
  margin: 0 auto;
}

.skeleton-block {
  background: linear-gradient(90deg, var(--primary-light) 25%, #e8f0e8 50%, var(--primary-light) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-minimal);
  margin-bottom: var(--space-3);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* --- Page Transitions --- */
#router-view {
  transition: opacity 0.2s ease;
}