/* ClawHunt v5 — page layouts shared by every page type.
   .page-hero   story / content page opener (a shorter tank)
   .section-head  title + lede + optional action for a section
   .app         signed-in shell: sticky side nav + work area
   .prose       long-form reading (articles, legal, docs) */

/* ── subpage hero ──────────────────────────── */

.page-hero {
  position: relative;
  margin: var(--tank-inset);
  border-radius: var(--r-tank);
  overflow: clip;
  isolation: isolate;
  min-height: clamp(440px, 64svh, 680px);
  display: grid;
  align-items: end;
  background: var(--bg-deep);
}

.page-hero--short {
  min-height: clamp(320px, 44svh, 460px);
}

.page-hero__plate {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to top, color-mix(in oklab, var(--bg-deep) 92%, transparent) 0%, color-mix(in oklab, var(--bg-deep) 40%, transparent) 46%, transparent 78%),
    linear-gradient(90deg, color-mix(in oklab, var(--bg-deep) 70%, transparent), transparent 62%);
}

.page-hero--plain::before {
  display: none;
}

/* On phones the copy spans the full width, so a left-to-right fade would leave its
   right half on raw plate texture: veil the lower part of the frame instead. */
@media (max-width: 640px) {
  .page-hero::before {
    background: linear-gradient(to top, color-mix(in oklab, var(--bg-deep) 94%, transparent) 0%, color-mix(in oklab, var(--bg-deep) 72%, transparent) 55%, color-mix(in oklab, var(--bg-deep) 20%, transparent) 100%);
  }

  .page-hero--night::before {
    background: linear-gradient(to top, rgb(4 18 25 / 0.95) 0%, rgb(4 18 25 / 0.74) 55%, rgb(4 18 25 / 0.25) 100%);
  }
}

.page-hero--night {
  background: #041219;
  color: #e7eef0;
  --ink: #e7eef0;
  --ink-2: #b8c9cf;
  --ink-3: #8aa1a9;
}

.page-hero--night::before {
  background:
    linear-gradient(to top, rgb(4 18 25 / 0.94) 0%, rgb(4 18 25 / 0.5) 50%, transparent 80%),
    linear-gradient(90deg, rgb(4 18 25 / 0.82), transparent 66%);
}

.page-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  gap: 32px;
  align-items: end;
  padding-top: calc(var(--header-h) + 72px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-hero__copy {
  display: grid;
  gap: 18px;
  max-width: 820px;
}

.page-hero__label {
  font-size: 0.9375rem;
  font-weight: 620;
  color: var(--ink-2);
}

.page-hero__title {
  color: var(--ink);
  max-width: 16ch;
}

:lang(zh) .page-hero__title {
  max-width: 11em;
}

.page-hero__lede {
  font-size: var(--fs-body-l);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 54ch;
  text-wrap: pretty;
}

.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.page-hero__aside {
  justify-self: end;
  align-self: end;
}

.page-hero__object {
  width: min(320px, 28vw);
  filter: drop-shadow(0 30px 50px rgb(11 34 48 / 0.18));
}

@media (max-width: 900px) {
  .page-hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-hero__aside {
    justify-self: start;
  }

  .page-hero__object {
    width: 180px;
  }
}

/* ── section head ──────────────────────────── */

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 16px 32px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.section-head__lede {
  grid-column: 1;
  color: var(--ink-2);
  max-width: 60ch;
  margin-top: -4px;
}

.section-head__action {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: end;
}

@media (max-width: 700px) {
  .section-head {
    grid-template-columns: minmax(0, 1fr);
  }

  .section-head__action {
    grid-column: 1;
    grid-row: auto;
  }
}

/* ── signed-in app shell ───────────────────── */

.app {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  gap: 0;
  min-height: 100svh;
  padding-top: calc(var(--header-h) + var(--tank-inset) + 26px);
}

.app__side {
  position: sticky;
  top: calc(var(--header-h) + var(--tank-inset) + 26px);
  align-self: start;
  height: calc(100svh - var(--header-h) - var(--tank-inset) - 40px);
  overflow-y: auto;
  padding: 8px 12px 24px calc(var(--tank-inset) + 12px);
  display: grid;
  align-content: start;
  gap: 22px;
}

.app__nav-group {
  display: grid;
  gap: 2px;
}

.app__nav-label {
  padding: 0 12px 6px;
  font-size: 0.75rem;
  font-weight: 620;
  color: var(--ink-3);
}

.app__nav a,
.app__nav button {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  min-height: 40px;
  padding: 0 12px;
  border-radius: 12px;
  font-size: 0.9375rem;
  font-weight: 540;
  color: var(--ink-2);
  text-align: left;
  transition: background-color var(--t-fast), color var(--t-fast);
}

.app__nav a:hover,
.app__nav button:hover {
  background: color-mix(in oklab, var(--ink) 6%, transparent);
  color: var(--ink);
}

.app__nav a[aria-current="page"],
.app__nav button[aria-current="true"] {
  background: var(--surface);
  color: var(--ink);
  font-weight: 620;
  box-shadow: 0 1px 2px rgb(11 34 48 / 0.06), 0 0 0 1px var(--line-soft) inset;
}

.app__nav .badge {
  margin-left: auto;
}

.app__main {
  min-width: 0;
  padding: 0 calc(var(--tank-inset) + clamp(12px, 2.4vw, 40px)) 80px clamp(12px, 2vw, 28px);
}

.app__head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 16px 24px;
  margin-bottom: 28px;
}

.app__title {
  font-size: clamp(2rem, 3.2vw, 2.75rem);
  line-height: 1.02;
  font-weight: 660;
  font-stretch: 86%;
  letter-spacing: -0.03em;
}

.app__sub {
  margin-top: 8px;
  color: var(--ink-2);
  max-width: 64ch;
}

.app__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.app__grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.app__grid > .span-12 { grid-column: span 12; }
.app__grid > .span-8 { grid-column: span 8; }
.app__grid > .span-7 { grid-column: span 7; }
.app__grid > .span-6 { grid-column: span 6; }
.app__grid > .span-5 { grid-column: span 5; }
.app__grid > .span-4 { grid-column: span 4; }
.app__grid > .span-3 { grid-column: span 3; }

@media (max-width: 1100px) {
  .app__grid > [class*="span-"] {
    grid-column: span 12;
  }
}

.app-card {
  background: var(--surface);
  border-radius: var(--r-panel);
  padding: clamp(18px, 2vw, 26px);
  min-width: 0;
}

.app-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.app-card__title {
  font-size: 1.0625rem;
  font-weight: 640;
}

.kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.kpi {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border-radius: 20px;
  background: var(--surface);
}

.kpi__label {
  font-size: 0.8125rem;
  color: var(--ink-2);
  font-weight: 560;
}

.kpi__value {
  font-size: clamp(1.6rem, 2.6vw, 2.25rem);
  font-weight: 440;
  font-stretch: 86%;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
  line-height: 1.05;
}

.kpi__note {
  font-size: 0.8125rem;
  color: var(--ink-3);
}

@media (max-width: 1100px) {
  .kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .app {
    grid-template-columns: minmax(0, 1fr);
  }

  .app__side {
    position: static;
    height: auto;
    overflow-x: auto;
    padding: 0 var(--margin) 12px;
  }

  .app__nav {
    display: flex;
    gap: 6px;
  }

  .app__nav-group {
    display: flex;
    gap: 4px;
  }

  .app__nav-label {
    display: none;
  }

  .app__nav a,
  .app__nav button {
    white-space: nowrap;
    width: auto;
  }

  .app__main {
    padding: 0 var(--margin) 64px;
  }
}

/* the gate shown in place of private content */
.gate {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 14px;
  padding: clamp(48px, 8vw, 96px) 24px;
  border-radius: var(--r-panel);
  background: var(--surface);
}

.gate img {
  width: 120px;
  height: 120px;
  object-fit: contain;
}

/* ── long-form prose ───────────────────────── */

.prose {
  font-family: var(--font-read);
  font-size: 1.1875rem;
  line-height: 1.7;
  color: var(--ink);
  max-width: 68ch;
}

.prose > * + * {
  margin-top: 1.05em;
}

.prose h2,
.prose h3,
.prose h4 {
  font-family: var(--font-sans);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin-top: 2.1em;
  scroll-margin-top: calc(var(--header-h) + 40px);
}

.prose h2 {
  font-size: 1.75rem;
  font-weight: 650;
  font-stretch: 90%;
}

.prose h3 {
  font-size: 1.3125rem;
  font-weight: 640;
}

.prose h4 {
  font-size: 1.0625rem;
  font-weight: 640;
}

.prose h2 + *,
.prose h3 + *,
.prose h4 + * {
  margin-top: 0.6em;
}

.prose a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

.prose ul,
.prose ol {
  padding-left: 1.3em;
}

.prose li + li {
  margin-top: 0.4em;
}

.prose li::marker {
  color: var(--ink-3);
}

.prose blockquote {
  margin-left: 0;
  padding-left: 1.2em;
  border-left: 2px solid var(--accent);
  font-style: italic;
  color: var(--ink-2);
}

.prose figure img {
  border-radius: var(--r-card);
  width: 100%;
}

.prose figcaption {
  margin-top: 10px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--ink-3);
}

.prose table {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--surface);
}

.prose th,
.prose td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-soft);
  text-align: left;
  vertical-align: top;
}

.prose th {
  font-weight: 620;
  color: var(--ink-2);
}

.prose pre {
  font-size: 0.8125rem;
  padding: 18px 20px;
  border-radius: var(--r-card);
  background: #0b2230;
  color: #d8e6e8;
  overflow-x: auto;
  line-height: 1.6;
}

.prose hr {
  margin: 2.4em 0;
}

.prose .callout {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 18px 20px;
  border-radius: var(--r-card);
  background: var(--held-soft);
}

:lang(zh) .prose {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.85;
}

/* table of contents beside prose */
.toc {
  position: sticky;
  top: calc(var(--header-h) + 40px);
  display: grid;
  gap: 2px;
  font-size: 0.875rem;
}

.toc a {
  display: block;
  padding: 6px 0 6px 14px;
  border-left: 1px solid var(--line);
  color: var(--ink-3);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.toc a:hover {
  color: var(--ink);
}

.toc a.is-active {
  color: var(--ink);
  border-left: 2px solid var(--accent);
  padding-left: 13px;
}