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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--step-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
}

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

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

ul {
  list-style: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.section {
  padding: var(--space-8) var(--space-5);
}

.section-inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-6);
}

.section-eyebrow {
  color: var(--color-accent);
  font-weight: 600;
  font-size: var(--step-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.section-head h2 {
  font-size: var(--step-2xl);
  margin-top: var(--space-2);
}

.section-head p {
  color: var(--color-text-muted);
  margin-top: var(--space-3);
  font-size: var(--step-md);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.7rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.15s ease;
}

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

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

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

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

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

/* header / nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  max-width: var(--content-width);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--step-md);
}

.brand img {
  height: 36px;
  width: 36px;
  object-fit: contain;
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  font-size: 1.4rem;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-text);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-links a {
  font-weight: 500;
  color: var(--color-text-muted);
}

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

.nav-cta {
  margin-left: var(--space-2);
}

/* .nav-links a { color: var(--color-text-muted) } outranks .btn-primary's
   color on specificity, so the CTA needs an explicit, more specific rule. */
.btn.btn-primary.nav-cta {
  color: var(--color-accent-contrast);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4) var(--space-5);
    gap: var(--space-3);
    display: none;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-cta {
    margin-left: 0;
  }
}

/* catalog grid + card (shared by home preview and full catalog page) */
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-5);
}

.catalog-loading {
  grid-column: 1 / -1;
  padding: var(--space-6);
  text-align: center;
  color: var(--color-text-muted);
}

.catalog-card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.catalog-card:hover,
.catalog-card:focus-visible {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

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

.catalog-card-img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-surface-muted);
}

.catalog-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-2);
}

.catalog-card-body {
  padding: var(--space-4);
  padding-bottom: var(--space-7);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.catalog-card-category {
  font-size: var(--step-sm);
  color: var(--color-accent);
  font-weight: 600;
}

.catalog-card-name {
  font-size: var(--step-md);
}

.catalog-card-price {
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.catalog-card-cta {
  position: absolute;
  right: var(--space-4);
  bottom: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--step-sm);
  font-weight: 600;
  color: var(--color-accent);
}

/* item detail dialog */
.item-dialog {
  /* set explicitly rather than relying on the UA dialog:modal default,
     which some browsers center inconsistently once padding/border are reset */
  position: fixed;
  inset: 0;
  margin: auto;
  border: none;
  border-radius: var(--radius-lg);
  padding: 0;
  width: min(420px, calc(100vw - var(--space-6)));
  max-height: min(600px, calc(100vh - var(--space-6)));
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.item-dialog::backdrop {
  background: rgba(35, 31, 26, 0.5);
}

.item-dialog-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
}

.item-dialog-close button {
  border: none;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  font-size: 1.1rem;
  cursor: pointer;
}

.item-dialog-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-5);
  max-height: min(600px, calc(100vh - var(--space-6)));
  overflow-y: auto;
}

.item-dialog-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  padding: var(--space-2);
  background: var(--color-surface-muted);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-2);
}

.item-dialog-category {
  font-size: var(--step-sm);
  color: var(--color-accent);
  font-weight: 600;
}

.item-dialog-name {
  font-size: var(--step-lg);
}

.item-dialog-price {
  color: var(--color-text-muted);
}

.item-dialog-body .btn {
  align-self: flex-start;
  margin-top: var(--space-2);
}

/* footer */
.site-footer {
  background: var(--color-surface-muted);
  border-top: 1px solid var(--color-border);
  padding: var(--space-8) var(--space-5) var(--space-6);
}

.footer-grid {
  max-width: var(--content-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-6);
}

.footer-brand h2 {
  font-size: var(--step-lg);
  margin-bottom: var(--space-2);
}

.footer-brand p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer-col h3 {
  font-size: var(--step-base);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.footer-col p {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-7);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.footer-social a:hover {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

.footer-copyright {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--step-sm);
  margin-top: var(--space-5);
}

@media (max-width: 780px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .footer-col p {
    justify-content: flex-start;
  }
}