/* Shared chrome for the archive pages. */
:root {
  color-scheme: dark;
}

[hidden] {
  display: none !important;
}

.site-shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1200px;
  min-height: 100vh;
  margin: 0 auto;
  padding: 32px 40px 32px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-gold-soft);
}

.site-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--color-ivory);
  text-decoration: none;
}

.site-brand__cn {
  font-family: var(--font-display);
  font-size: 24px;
  letter-spacing: 0.16em;
  line-height: 1.25;
}

.site-brand__en {
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 9px;
  letter-spacing: 0.26em;
  line-height: 1.4;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-nav a {
  position: relative;
  padding: 6px 0;
  color: var(--text-muted);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-decoration: none;
  transition: color 180ms ease-out;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 180ms ease-out;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-ivory);
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav__cart {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

[data-cart-count] {
  display: inline-grid;
  place-items: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border: 1px solid var(--line-gold);
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0;
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--line-gold-soft);
  color: var(--text-faint);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.site-footer p {
  margin: 0;
}

/* Shared controls */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid var(--line-gold);
  border-radius: 0;
  background: transparent;
  color: var(--color-ivory);
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.14em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 180ms ease-out, border-color 180ms ease-out,
    color 180ms ease-out;
}

.btn:hover {
  border-color: var(--color-gold);
  background: rgba(212, 175, 55, 0.08);
}

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

.btn--primary:hover {
  background: #e8c954;
  border-color: #e8c954;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn--small {
  min-height: 34px;
  padding: 0 12px;
  font-size: 11px;
  letter-spacing: 0.1em;
}

.field {
  display: grid;
  align-content: start;
  gap: 7px;
  min-width: 0;
}

.field > span,
.field__label {
  color: var(--color-gold);
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.2em;
  line-height: 1.4;
  text-transform: uppercase;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 44px;
  padding: 9px 12px;
  border: 1px solid var(--line-gold-soft);
  border-radius: 0;
  outline: none;
  background: rgba(255, 255, 255, 0.025);
  color: var(--color-ivory);
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.5;
  transition: border-color 160ms ease-out, background-color 160ms ease-out;
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(245, 245, 220, 0.34);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--color-gold);
  background: rgba(255, 255, 255, 0.04);
}

.field textarea {
  min-height: 96px;
  resize: vertical;
}

.field select {
  cursor: pointer;
}

.field__hint {
  color: var(--text-faint);
  font-size: 11px;
  line-height: 1.6;
}

.field__error {
  margin: 0;
  color: #f08b9b;
  font-size: 12px;
  line-height: 1.6;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 2px 8px;
  border: 1px solid var(--line-gold-soft);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
  white-space: nowrap;
}

.badge--basic {
  border-color: rgba(46, 158, 107, 0.7);
  background: rgba(46, 158, 107, 0.12);
  color: #6fd8a8;
}

.badge--advanced {
  border-color: rgba(201, 162, 39, 0.75);
  background: rgba(201, 162, 39, 0.12);
  color: #e3c45d;
}

.badge--expert {
  border-color: rgba(179, 36, 59, 0.8);
  background: rgba(179, 36, 59, 0.14);
  color: #e5798a;
}

.badge--master {
  border-color: rgba(125, 91, 166, 0.8);
  background: rgba(125, 91, 166, 0.14);
  color: #b9a0dd;
}

/* Toast region is injected by site.js. */
.toast-region {
  position: fixed;
  bottom: 28px;
  left: 50%;
  z-index: 90;
  display: grid;
  gap: 8px;
  width: min(420px, calc(100vw - 48px));
  transform: translateX(-50%);
  pointer-events: none;
}

.toast {
  padding: 12px 16px;
  border: 1px solid var(--line-gold);
  background: var(--surface-slate);
  color: var(--color-ivory);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  animation: toast-in 220ms ease-out both;
}

.toast--error {
  border-color: rgba(179, 36, 59, 0.9);
  color: #ffd9df;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .site-shell {
    padding: 20px 20px 24px;
  }

  .site-header {
    align-items: flex-start;
    gap: 16px;
    padding-bottom: 16px;
  }

  .site-brand__cn {
    font-size: 20px;
  }

  .site-brand__en {
    font-size: 8px;
    letter-spacing: 0.2em;
  }

  .site-nav {
    gap: 14px;
    padding-top: 4px;
  }

  .site-nav a {
    font-size: 11px;
    letter-spacing: 0.1em;
  }

  .site-footer {
    margin-top: 40px;
  }
}

@media (max-width: 420px) {
  .site-shell {
    padding-right: 16px;
    padding-left: 16px;
  }

  .site-header {
    flex-direction: column;
    gap: 12px;
  }

  .site-nav {
    width: 100%;
    justify-content: space-between;
  }
}