/* ==========================================================================
   layout.css — header、側欄、Hero、頁尾
   ========================================================================== */

/* --- Header ------------------------------------------------------------- */

.AppHeader {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: var(--base-size-16);
  padding: 0 var(--base-size-16);
  background-color: color-mix(in srgb, var(--bgColor-muted) 92%, transparent);
  border-bottom: 1px solid var(--borderColor-default);
  backdrop-filter: saturate(180%) blur(8px);
}

.AppHeader__brand {
  display: flex;
  align-items: center;
  gap: var(--base-size-8);
  font-size: 15px;
  font-weight: 600;
  color: var(--fgColor-default);
}

.AppHeader__brand:hover {
  text-decoration: none;
}

.AppHeader__brand svg {
  color: var(--fgColor-accent);
}

.AppHeader__spacer {
  flex: 1;
}

.AppHeader__actions {
  display: flex;
  align-items: center;
  gap: var(--base-size-8);
}

/* --- SearchBox ---------------------------------------------------------- */

.SearchBox {
  position: relative;
  display: flex;
  align-items: center;
  width: 260px;
}

.SearchBox > svg {
  position: absolute;
  left: 8px;
  color: var(--fgColor-muted);
  pointer-events: none;
}

.SearchBox input {
  width: 100%;
  padding: 5px 28px 5px 30px;
  font: inherit;
  font-size: 14px;
  line-height: 20px;
  color: var(--fgColor-default);
  background-color: var(--bgColor-default);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
}

.SearchBox input::placeholder {
  color: var(--fgColor-muted);
}

.SearchBox input:focus {
  outline: none;
  border-color: var(--borderColor-accent-emphasis);
  box-shadow: 0 0 0 3px var(--bgColor-accent-muted);
}

.SearchBox__clear {
  position: absolute;
  right: 4px;
  display: none;
  padding: 3px;
  border: 0;
  border-radius: var(--borderRadius-full);
  background: transparent;
  color: var(--fgColor-muted);
}

.SearchBox__clear:hover {
  background-color: var(--bgColor-neutral-muted);
  color: var(--fgColor-default);
}

.SearchBox.has-value .SearchBox__clear {
  display: block;
}

/* --- Hero --------------------------------------------------------------- */

.Hero {
  padding: var(--base-size-40) 0 var(--base-size-32);
  border-bottom: 1px solid var(--borderColor-default);
  background: radial-gradient(
      ellipse 70% 60% at 20% 0%,
      var(--bgColor-accent-muted),
      transparent 70%
    ),
    var(--bgColor-default);
}

.Hero h1 {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.Hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--base-size-4);
  margin-bottom: var(--base-size-12);
}

.Hero__lede {
  margin-top: var(--base-size-12);
  max-width: 62ch;
  font-size: 16px;
  color: var(--fgColor-muted);
}

.Hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--base-size-32);
  margin-top: var(--base-size-24);
  padding-top: var(--base-size-24);
  border-top: 1px solid var(--borderColor-muted);
}

.Stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.Stat__value {
  display: flex;
  align-items: center;
  gap: var(--base-size-4);
  font-size: 20px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.Stat__value svg {
  color: var(--fgColor-muted);
}

.Stat__value .rating {
  color: var(--fgColor-attention);
}

.Stat__label {
  font-size: 12px;
  color: var(--fgColor-muted);
}

/* --- Layout ------------------------------------------------------------- */

.Layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  gap: var(--base-size-24);
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--base-size-24) var(--base-size-16);
  align-items: start;
}

.Layout__sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--base-size-24));
  max-height: calc(100vh - var(--header-height) - var(--base-size-40));
  overflow-y: auto;
  overscroll-behavior: contain;
  padding-right: var(--base-size-4);
}

.Layout__main {
  min-width: 0;
}

/* --- Progress panel ----------------------------------------------------- */

.ProgressPanel {
  padding: var(--base-size-12);
  margin-bottom: var(--base-size-16);
  background-color: var(--bgColor-muted);
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
}

.ProgressPanel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--base-size-8);
  margin-bottom: var(--base-size-8);
}

.ProgressPanel__title {
  font-size: 12px;
  font-weight: 600;
  color: var(--fgColor-muted);
}

.ProgressPanel__value {
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.ProgressPanel__reset {
  margin-top: var(--base-size-8);
  font-size: 12px;
  padding: 3px 8px;
}

/* --- NavList ------------------------------------------------------------ */

.NavList {
  font-size: 14px;
}

.NavList__group-title {
  padding: var(--base-size-12) var(--base-size-12) var(--base-size-4);
  font-size: 12px;
  font-weight: 600;
  color: var(--fgColor-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.NavList__item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--base-size-8);
  padding: 6px var(--base-size-12);
  border-radius: var(--borderRadius-medium);
  color: var(--fgColor-default);
  line-height: 20px;
}

.NavList__item:hover {
  background-color: var(--bgColor-neutral-muted);
  text-decoration: none;
}

.NavList__item.is-active {
  background-color: var(--bgColor-neutral-muted);
  font-weight: 600;
}

.NavList__item.is-active::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 20px;
  background-color: var(--fgColor-accent);
  border-radius: var(--borderRadius-full);
}

.NavList__icon {
  color: var(--fgColor-muted);
}

.NavList__item.is-active .NavList__icon {
  color: var(--fgColor-accent);
}

.NavList__label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- FilterBar ---------------------------------------------------------- */

.FilterBar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--base-size-8);
  margin-bottom: var(--base-size-16);
}

.FilterBar__group {
  display: flex;
  align-items: center;
  border: 1px solid var(--borderColor-default);
  border-radius: var(--borderRadius-medium);
  overflow: hidden;
}

.FilterBar__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--base-size-4);
  padding: 5px 10px;
  font-size: 13px;
  background-color: var(--bgColor-default);
  border: 0;
  border-left: 1px solid var(--borderColor-default);
  color: var(--fgColor-muted);
}

.FilterBar__btn:first-child {
  border-left: 0;
}

.FilterBar__btn:hover {
  background-color: var(--bgColor-muted);
}

.FilterBar__btn.is-active {
  background-color: var(--bgColor-accent-muted);
  color: var(--fgColor-accent);
  font-weight: 600;
}

.FilterBar__spacer {
  flex: 1;
}

.FilterBar__count {
  font-size: 12px;
  color: var(--fgColor-muted);
  font-variant-numeric: tabular-nums;
}

/* --- Footer ------------------------------------------------------------- */

.AppFooter {
  padding: var(--base-size-24) var(--base-size-16);
  margin-top: var(--base-size-40);
  border-top: 1px solid var(--borderColor-default);
  background-color: var(--bgColor-muted);
  font-size: 12px;
  color: var(--fgColor-muted);
}

.AppFooter__inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--base-size-16);
  align-items: center;
}

.AppFooter__disclaimer {
  flex-basis: 100%;
  max-width: 80ch;
  line-height: 1.6;
}

/* --- Responsive --------------------------------------------------------- */

@media (max-width: 1012px) {
  .Layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .Layout__sidebar {
    position: static;
    max-height: none;
  }

  .SearchBox {
    width: 200px;
  }
}

@media (max-width: 767px) {
  .Hero {
    padding: var(--base-size-24) 0;
  }

  .Hero h1 {
    font-size: 24px;
  }

  .Hero__stats {
    gap: var(--base-size-16) var(--base-size-24);
  }

  .SearchBox {
    width: 100%;
    min-width: 0;
  }

  .AppHeader {
    gap: var(--base-size-8);
  }

  .AppHeader__brand span {
    display: none;
  }
}

@media print {
  .AppHeader,
  .Layout__sidebar,
  .FilterBar,
  .ProgressPanel {
    display: none;
  }

  .Layout {
    grid-template-columns: minmax(0, 1fr);
  }
}