/* XPhoneUse website - one stylesheet for both languages.
   Brand tokens come from the app itself (src/index.css): tech blue #1677FF,
   dark surface #0f172a, light background #f8f8fa. */

:root {
  --brand: #1677ff;
  --brand-strong: #0958d0;
  --brand-soft: rgba(22, 119, 255, 0.12);

  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --bg-elevated: #ffffff;
  --text: #0b1220;
  --text-muted: #5b6478;
  --text-faint: #8b93a7;
  --border: #e5e9f2;
  --shadow: 0 18px 50px rgba(15, 23, 42, 0.10);
  --code-bg: #0f172a;
  --code-text: #e8eefc;

  --radius: 14px;
  --maxw: 1120px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", ui-monospace, "JetBrains Mono", Consolas, monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #080b14;
    --bg-soft: #0d1220;
    --bg-elevated: #111726;
    --text: #f3f6fc;
    --text-muted: #a3adc2;
    --text-faint: #76809a;
    --border: #1e2638;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
    --brand-soft: rgba(22, 119, 255, 0.18);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; letter-spacing: -0.01em; }
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; border-radius: 8px; }
.nav-links { display: flex; gap: 20px; margin-inline-start: auto; }
.nav-links a { color: var(--text-muted); font-size: 14px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 10px; }

.lang {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 13px;
  color: var(--text-muted);
  background: transparent;
}
.lang:hover { color: var(--text); text-decoration: none; border-color: var(--text-faint); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-strong); }
.btn-ghost { border-color: var(--border); color: var(--text); background: var(--bg-elevated); }
.btn-sm { padding: 8px 14px; font-size: 14px; border-radius: 9px; }

/* ---------- hero ---------- */
.hero {
  padding: 76px 0 40px;
  background:
    radial-gradient(900px 420px at 12% -10%, var(--brand-soft), transparent 70%),
    var(--bg);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-soft);
  border-radius: 999px;
  padding: 5px 13px;
  margin-bottom: 18px;
}
h1 {
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 18px;
}
.lead { font-size: clamp(16px, 1.6vw, 19px); color: var(--text-muted); margin: 0 0 28px; max-width: 46ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-note { margin-top: 16px; font-size: 13px; color: var(--text-faint); }

.shot-frame {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.shot-frame img { width: 100%; }

/* The hero screenshot is a tall phone frame: cap it so the hero stays a
   banner rather than a full page of phone. */
.hero .shot-frame { justify-self: center; }
.hero .shot-frame img { width: auto; max-height: 620px; }

/* ---------- sections ---------- */
section { padding: 72px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { max-width: 680px; margin-bottom: 40px; }
h2 { font-size: clamp(25px, 3vw, 34px); letter-spacing: -0.02em; margin: 0 0 12px; }
.section-head p { color: var(--text-muted); margin: 0; font-size: 16px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.card h3 { margin: 0 0 8px; font-size: 17px; letter-spacing: -0.01em; }
.card p { margin: 0; color: var(--text-muted); font-size: 14.5px; }
.card .ico {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--brand-soft);
  color: var(--brand);
  display: grid;
  place-items: center;
  font-size: 17px;
  margin-bottom: 14px;
}

/* ---------- agent band ---------- */
.agent { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.agent ul { margin: 0 0 22px; padding-inline-start: 20px; color: var(--text-muted); }
.agent li { margin-bottom: 6px; }
pre {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 12px;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
  margin: 0;
}
pre .c { color: #7c8ba3; }
pre .k { color: #6fb1ff; }

/* ---------- screens ---------- */
.screens { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.screen { text-align: center; }
.screen .shot-frame { display: inline-block; max-width: 380px; }
.screen figcaption { margin-top: 14px; color: var(--text-muted); font-size: 14px; }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
.step { background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
}
.step h3 { margin: 0 0 6px; font-size: 16px; }
.step p { margin: 0; color: var(--text-muted); font-size: 14.5px; }

/* ---------- table ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
th, td { text-align: start; padding: 14px 18px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--bg-soft); font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-faint); }
tbody tr:last-child td { border-bottom: none; }
td strong { font-weight: 600; }

/* ---------- faq ---------- */
.faq { display: grid; gap: 14px; }
details {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
}
details[open] { border-color: color-mix(in srgb, var(--brand) 40%, var(--border)); }
summary { cursor: pointer; font-weight: 600; font-size: 15.5px; }
summary::marker { color: var(--brand); }
details p { margin: 12px 0 0; color: var(--text-muted); font-size: 14.5px; }

/* ---------- cta + footer ---------- */
.cta {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 20px;
  padding: 48px;
  text-align: center;
}
.cta h2 { color: #fff; }
.cta p { color: #b9c4d8; margin: 0 auto 26px; max-width: 52ch; }

footer { border-top: 1px solid var(--border); padding: 44px 0 30px; background: var(--bg-soft); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 28px; }
.foot-grid h4 { margin: 0 0 12px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-faint); }
.foot-grid a { display: block; color: var(--text-muted); font-size: 14.5px; margin-bottom: 8px; }
.foot-grid a:hover { color: var(--text); }
.foot-note { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--text-faint); font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Contact block on the home page: the QR sits beside its explanation, and the
   channels wrap to one column on a narrow screen. */
.contact { display: flex; align-items: flex-start; gap: 36px; flex-wrap: wrap; }
.contact > div { max-width: 42ch; }
.contact p { margin: 0 0 8px; font-size: 15px; }
.contact a { color: var(--brand); text-decoration: none; }
.contact a:hover { text-decoration: underline; }
.contact .contact-note { color: var(--text-muted); font-size: 14px; }
/* The QR is meant to be scanned off the screen, so it is sized for that (and
   is not a link): a phone needs a decent square of pixels, not a thumbnail. */
.contact-qr {
  display: block; width: 280px; height: auto; max-width: 100%;
  border: 1px solid var(--border); border-radius: var(--radius); background: #fff;
}

/* ---------- home showcase ----------
   A strip of case cards inside the page column (not bleed to the window),
   holding its cards several times over: the animation slides it by exactly one
   pass, which is the width of the repeated block, so the loop has no seam.
   Hovering or focusing stops it, and a reader who asked for less motion gets a
   plain horizontal scroll instead of movement. */
.showcase { padding: 40px 0 40px; }
.marquee {
  overflow: hidden; margin-bottom: 28px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 3%, #000 97%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 3%, #000 97%, transparent);
}
.marquee-track {
  display: flex; gap: 18px; width: max-content;
  animation: marquee 60s linear infinite;
  transform: translateX(0);
}
.marquee:hover .marquee-track, .marquee:focus-within .marquee-track { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(calc(-100% / var(--passes, 2))); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee { overflow-x: auto; }
  .marquee-track { animation: none; }
}
.marquee-card { width: 260px; flex: 0 0 auto; }
.marquee-link { display: flex; flex-direction: column; height: 100%; background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; color: inherit; text-decoration: none; transition: border-color .15s, transform .15s; }
.marquee-link:hover { border-color: var(--brand); transform: translateY(-2px); }
.marquee-shot { position: relative; aspect-ratio: 16 / 10; background: var(--surface-2, var(--bg-elevated)); display: grid; place-items: center; overflow: hidden; }
.marquee-shot img { width: 100%; height: 100%; object-fit: cover; display: block; }
.marquee-placeholder { padding: 0 16px; color: var(--text-muted); font-size: 14px; text-align: center; }
.marquee-play { position: absolute; right: 10px; bottom: 10px; width: 30px; height: 30px; border-radius: 999px; background: rgba(0,0,0,.6); color: #fff; display: grid; place-items: center; font-size: 12px; }
.marquee-body { padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 8px; }
.marquee-body h3 { margin: 0; font-size: 15px; line-height: 1.35; }
.marquee-meta { color: var(--text-faint); font-size: 12.5px; }
.case-video { display: inline-block; margin-top: 12px; color: var(--brand); font-size: 14px; text-decoration: none; }
.case-video:hover { text-decoration: underline; }

/* ---------- hardware page ----------
   Two products, one per row: a photo block and its text, alternating nothing -
   the photos are what people came to look at, so they stay on the outside. */
.products { display: flex; flex-direction: column; gap: 40px; }
.product {
  display: grid; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); gap: 34px; align-items: start;
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
}
.product-shot img, .product-gallery img { width: 100%; height: auto; border-radius: calc(var(--radius) - 4px); display: block; }
.product-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.product-gallery img:first-child { grid-column: 1 / -1; }
.product-body h2 { margin: 6px 0 10px; }
.product-body p { color: var(--text-muted); }
.product-example { margin: 18px 0 4px; padding: 14px 16px; background: var(--bg); border: 1px solid var(--border); border-radius: calc(var(--radius) - 4px); }
.product-example .quote { margin: 8px 0 6px; font-size: 16px; color: var(--text); }
.product-example .note { margin: 0; }
.product-tag {
  display: inline-block; font-size: 12px; letter-spacing: .04em; text-transform: uppercase;
  color: var(--brand); border: 1px solid var(--border); border-radius: 999px; padding: 3px 10px;
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .agent, .screens, .cards, .steps, .foot-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
  .nav-links { display: none; }
  section { padding: 56px 0; }
  .cta { padding: 34px 22px; }
}

/* ============================================================
   Dynamic site additions: page heads, download cards, docs,
   community forms and the admin console.
   ============================================================ */

.page-head { padding: 64px 0 8px; background:
  radial-gradient(900px 380px at 12% -20%, var(--brand-soft), transparent 70%), var(--bg); }
.page-head h1 { font-size: clamp(30px, 3.6vw, 44px); margin-bottom: 10px; }
.page-head .lead { margin-bottom: 12px; }
.section-tight { padding: 40px 0; }
h2.tight { margin-top: 0; }
.center { text-align: center; margin-top: 28px; }
.muted { color: var(--text-muted); }
.small { font-size: 13.5px; }
.note { color: var(--text-faint); font-size: 13.5px; margin: 18px 0; }
.mark { font-size: 16px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.active { }

.version-chip { display: inline-flex; align-items: center; gap: 8px; color: var(--text-muted); font-size: 14px; }
.version-chip .dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; }

.flash { border-radius: 12px; padding: 13px 18px; margin: 18px 0; font-size: 14.5px; border: 1px solid transparent; }
.flash-ok { background: rgba(34, 197, 94, 0.12); border-color: rgba(34, 197, 94, 0.35); color: #15803d; }
.flash-err { background: rgba(239, 68, 68, 0.10); border-color: rgba(239, 68, 68, 0.32); color: #b91c1c; }
@media (prefers-color-scheme: dark) {
  .flash-ok { color: #4ade80; }
  .flash-err { color: #fca5a5; }
}

/* ---------- download ---------- */
.dl-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.dl-card { display: flex; flex-direction: column; gap: 16px; }
.dl-head { display: flex; align-items: center; gap: 14px; }
.dl-head .ico { margin: 0; }
.dl-head h3 { margin: 0; }
.dl-meta { display: flex; gap: 26px; margin: 0; flex-wrap: wrap; }
.dl-meta div { display: flex; flex-direction: column; gap: 2px; }
.dl-meta dt { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-faint); }
.dl-meta dd { margin: 0; font-size: 14.5px; font-variant-numeric: tabular-nums; }
.dl-card .btn { align-self: flex-start; }
.btn-disabled { background: var(--bg-soft); color: var(--text-faint); border-color: var(--border); cursor: default; }
.btn-disabled:hover { transform: none; }
.btn-danger { background: transparent; border-color: rgba(239, 68, 68, 0.4); color: #dc2626; }
.btn-danger:hover { background: rgba(239, 68, 68, 0.08); }

.download-row { flex-direction: row; align-items: center; justify-content: space-between; gap: 20px; }
.download-row h3 { margin: 0 0 4px; }
.download-row p { margin: 0; }

.ime-card {
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 30px;
}
.ime-card + .ime-card { margin-top: 18px; }
.ime-body h2 { margin: 0 0 8px; font-size: 21px; }
.ime-body p { margin: 0; color: var(--text-muted); font-size: 14.5px; max-width: 62ch; }

/* ---------- dongle page ---------- */
.dongle-top { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 40px; align-items: start; }
.dongle-shot { justify-self: center; max-width: 380px; }
.dongle-shot img { width: 100%; }
.dongle-list { margin: 0 0 4px; padding-inline-start: 20px; color: var(--text-muted); font-size: 15.5px; }
.dongle-list li { margin-bottom: 10px; }
.buy-card { padding: 32px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.buy-card p { margin: 0; color: var(--text-muted); max-width: 56ch; }
.buy-card .note { margin: 0; }

/* ---------- skill ---------- */
.install-card { padding: 28px 30px; }
.install-lead { margin: 0 0 14px; color: var(--text-muted); font-size: 15px; }
.install-cmd { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.install-cmd code {
  flex: 1 1 340px; min-width: 0; overflow-wrap: anywhere;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 9px;
  padding: 13px 16px; font-family: var(--mono); font-size: 13.4px; color: var(--text);
}
.install-cmd .btn { white-space: nowrap; }
.verify code, .card code, td code, .case-card code {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 5px;
  padding: 1px 6px; font-family: var(--mono); font-size: 12.8px;
}
.verify { margin-top: 22px; color: var(--text-muted); font-size: 14.5px; }

/* ---------- docs ---------- */
.docs-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 44px; padding-top: 44px; padding-bottom: 60px; }
.docs-side { position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 120px); overflow-y: auto; }
.docs-side h4 { margin: 0 0 12px; font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); }
.docs-side a { display: block; padding: 7px 12px; border-radius: 8px; color: var(--text-muted); font-size: 14.5px; border-inline-start: 2px solid transparent; }
.docs-side a:hover { background: var(--bg-soft); color: var(--text); text-decoration: none; }
.docs-side a.active { color: var(--brand); background: var(--brand-soft); border-inline-start-color: var(--brand); font-weight: 600; }
.docs-main { min-width: 0; }
.docs-toc { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--border); }
.docs-toc h4 { margin: 0 0 10px; font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); }
.docs-toc a { display: block; color: var(--text-muted); font-size: 13.5px; padding: 3px 0; }
.docs-toc a.lvl-3 { padding-inline-start: 16px; font-size: 13px; }

.prose { max-width: 74ch; }
.prose h1 { font-size: clamp(26px, 3vw, 36px); margin-bottom: 20px; }
.prose h2 { font-size: 24px; margin: 40px 0 12px; padding-top: 6px; }
.prose h3 { font-size: 18.5px; margin: 28px 0 8px; }
.prose h4 { font-size: 16px; margin: 22px 0 6px; }
.prose p, .prose li { color: var(--text-muted); font-size: 15.5px; }
.prose li { margin-bottom: 5px; }
.prose a { text-decoration: underline; text-underline-offset: 2px; }
.prose img { border-radius: 12px; border: 1px solid var(--border); margin: 18px 0; }
.prose blockquote {
  margin: 20px 0; padding: 4px 20px; border-inline-start: 3px solid var(--brand);
  background: var(--bg-soft); border-radius: 0 10px 10px 0; color: var(--text-muted);
}
.prose table { min-width: 0; }
.prose hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }
.prose :not(pre) > code { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 6px; padding: 2px 6px; font-family: var(--mono); font-size: 13.5px; color: var(--text); }
.prose pre { margin: 18px 0; }
.notice { background: var(--brand-soft); color: var(--brand); border-radius: 10px; padding: 10px 16px; font-size: 14px; }

/* ---------- community ---------- */
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 20px; }
.case-card {
  background: var(--bg-elevated); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column;
}
/* A card with screenshots drops its own padding so the image runs edge to edge,
   and puts it back on the text below. */
.case-card.has-shots { padding: 0; overflow: hidden; }
.case-card.has-shots .case-body { padding: 18px 20px 20px; }
.case-body { display: flex; flex-direction: column; gap: 12px; flex: 1; }
.case-card h3 { margin: 0; font-size: 17px; }
.case-card p { margin: 0; color: var(--text-muted); font-size: 14.5px; }

/* Screenshots lead the card: one cover, or a cover over a row of tiles. */
.case-shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; background: var(--border); }
.case-shots > a { position: relative; display: block; overflow: hidden; background: var(--bg-soft); }
.case-shots img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center top; display: block; transition: transform 0.25s ease; }
.case-shots > a:hover img { transform: scale(1.03); }
/* One screenshot gets the whole card, not half of a two-column grid. */
.case-shots.single { grid-template-columns: 1fr; }
.case-shots.single > a img { aspect-ratio: 16 / 10; }
/* Three or more: the first one spans the card, the other two sit below it. */
.case-shots > a:first-child:nth-last-child(n + 3) { grid-column: 1 / -1; }
.case-shots > a:first-child:nth-last-child(n + 3) img { aspect-ratio: 16 / 9; }
.case-shots .more {
  position: absolute; right: 10px; bottom: 10px;
  background: rgba(15, 23, 42, 0.72); color: #fff; border-radius: 999px;
  padding: 3px 10px; font-size: 12.5px; font-weight: 600;
}
.case-shots.big { grid-template-columns: repeat(2, 1fr); gap: 8px; background: none; }
.case-shots.big > a img { aspect-ratio: 4 / 3; border-radius: 8px; border: 1px solid var(--border); }
.case-prompt { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.case-label { display: block; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); margin-bottom: 6px; }
.case-prompt code { background: none; border: none; padding: 0; font-family: var(--mono); font-size: 13px; color: var(--text); white-space: pre-wrap; word-break: break-word; }
.case-meta { display: flex; justify-content: space-between; gap: 12px; color: var(--text-faint); font-size: 13px; margin-top: auto; flex-wrap: wrap; }
.case-meta .tool { color: var(--brand); background: var(--brand-soft); border-radius: 999px; padding: 1px 9px; font-weight: 500; }

.forms { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.form-col { min-width: 0; }
.form { display: flex; flex-direction: column; gap: 16px; padding: 24px; }
.form label, .doc-form label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 600; color: var(--text); }
.form input, .form textarea, .form select,
.doc-form input, .doc-form textarea, .doc-form select,
.inline-form input {
  font: inherit; font-weight: 400; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 9px; padding: 10px 12px; width: 100%;
}
.form input:focus, .form textarea:focus, .doc-form input:focus, .doc-form textarea:focus {
  outline: 2px solid var(--brand-soft); border-color: var(--brand);
}
.form textarea { resize: vertical; }
.form .hint, .hint { font-weight: 400; color: var(--text-faint); font-size: 12.5px; }

/* ============================================================
   Admin console
   ============================================================ */
body.admin { background: var(--bg-soft); }
.admin-bar { background: var(--bg); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20; }
.admin-bar-inner { display: flex; align-items: center; gap: 24px; height: 60px; }
.admin-bar nav { display: flex; gap: 4px; margin-inline-start: auto; }
.admin-bar nav a { padding: 7px 12px; border-radius: 8px; color: var(--text-muted); font-size: 14px; font-weight: 500; }
.admin-bar nav a:hover { background: var(--bg-soft); color: var(--text); text-decoration: none; }
.admin-bar nav a.active { background: var(--brand-soft); color: var(--brand); }
.admin-who { display: flex; align-items: center; gap: 14px; font-size: 13.5px; color: var(--text-faint); }
.admin-who a { color: var(--text-muted); }
.admin-who .link { background: none; border: none; color: var(--brand); font: inherit; cursor: pointer; padding: 0; }

.admin-main { padding: 34px 24px 80px; }
.admin-main h1 { font-size: 26px; margin: 0 0 22px; }
.admin-main h2 { font-size: 19px; margin: 34px 0 14px; }
.admin-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-bottom: 20px; }
.admin-head h1 { margin: 0; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tabs a { padding: 6px 13px; border-radius: 999px; font-size: 13.5px; color: var(--text-muted); border: 1px solid var(--border); }
.tabs a:hover { text-decoration: none; color: var(--text); }
.tabs a.active { background: var(--brand); border-color: var(--brand); color: #fff; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat { display: flex; flex-direction: column; gap: 4px; color: inherit; }
.stat:hover { text-decoration: none; border-color: var(--brand); }
.stat-n { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat-l { color: var(--text-muted); font-size: 13.5px; }
.quick { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; }

.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12.5px; background: var(--bg-soft); color: var(--text-muted); border: 1px solid var(--border); }
.pill-ok { background: rgba(34, 197, 94, 0.12); color: #15803d; border-color: rgba(34, 197, 94, 0.3); }
.pill-bad { background: rgba(239, 68, 68, 0.1); color: #b91c1c; border-color: rgba(239, 68, 68, 0.3); }
.row-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row-actions form, .inline-form { display: flex; gap: 8px; align-items: center; }
.inline-form.wide { padding: 20px; }
.inline-form input { width: auto; min-width: 180px; }
tr.unread td { font-weight: 600; }
.body-cell { max-width: 44ch; white-space: pre-wrap; }
.admin-note { margin-top: 6px; color: var(--text-faint); font-size: 13px; font-weight: 400; }

.mod-card { margin-bottom: 18px; }
.mod-card header { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.mod-card h3 { margin: 0; }
.mod-card .meta { color: var(--text-faint); font-size: 13.5px; margin: 6px 0 14px; }
.mod-card .body { white-space: pre-wrap; color: var(--text-muted); font-size: 14.5px; }
.mod-actions { display: flex; gap: 10px; align-items: center; margin-top: 16px; flex-wrap: wrap; }
.mod-actions input[type=text] { flex: 1; min-width: 200px; font: inherit; border: 1px solid var(--border); border-radius: 9px; padding: 8px 12px; background: var(--bg); }

.doc-form { display: flex; flex-direction: column; gap: 20px; }
.doc-form .row { display: grid; grid-template-columns: 2fr 1.4fr 0.9fr 0.7fr auto; gap: 14px; align-items: end; }
.doc-form .check { flex-direction: row; align-items: center; gap: 8px; padding-bottom: 10px; font-weight: 500; }
.doc-form .check input { width: auto; }
.editor { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.editor textarea { font-family: var(--mono); font-size: 13.5px; line-height: 1.6; min-height: 460px; }
.preview-col { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
.preview-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-faint); }
.preview { max-height: 520px; overflow-y: auto; }
.form-actions { display: flex; gap: 12px; }

/* ICP filing line: present on Chinese pages only, muted like the rest of the
   fine print. */
.foot-note .icp { color: var(--text-faint); margin-inline-start: 8px; }
.foot-note .icp:hover { color: var(--text-muted); }

.login-wrap { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.login-card { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 16px; padding: 30px; }
.login-card h1 { font-size: 20px; margin: 0; }
.login-card .brand { margin-bottom: 4px; }

@media (max-width: 900px) {
  .dl-grid, .forms, .stat-grid, .editor, .doc-form .row, .dongle-top, .product { grid-template-columns: 1fr; }
  .docs-layout { grid-template-columns: 1fr; gap: 24px; }
  .docs-side { position: static; max-height: none; }
  .ime-card, .download-row { flex-direction: column; align-items: flex-start; }
  .admin-bar-inner { flex-wrap: wrap; height: auto; padding: 12px 0; }
  .admin-bar nav { margin: 0; flex-wrap: wrap; }
  .nav-links { display: none; }
}