/* =========================================================
   KovAPI — Design System  ·  「青黛靛」Indigo + Jade
   Chinese traditional palette: 靛青 indigo, 竹青 jade, 黛 ink-blue,
   on warm rice-paper. Calm & premium, with lively micro-motion.
   ========================================================= */

:root{
  --bg:#FAF8F4;            /* 米纸 warm rice-paper — kept */
  --bg-2:#F1EEE7;          /* slightly deeper panel */
  --surface:#FFFFFF;
  --ink:#1C2226;           /* 黛 cool ink for text */
  --ink-panel:#1C2226;     /* 黛 dark surface (hero / sidebar / toast) */
  --ink-panel-2:#262F35;   /* hover / elevated */
  --ink-2:#3C474E;
  --muted:#6E767C;         /* cool grey */
  --soft:#9AA1A6;
  --line:#E8E4DC;          /* warm hairline */
  --line-2:#D9D3C8;
  --accent:#1F6F8B;        /* 靛青 indigo — brand / interactive */
  --accent-ink:#17566B;    /* 黛蓝 deep indigo */
  --accent-soft:rgba(31,111,139,.10);
  --accent-line:rgba(31,111,139,.26);
  --jade:#5E8C6A;          /* 竹青 jade — positive / success */
  --jade-ink:#48715A;
  --jade-soft:rgba(94,140,106,.12);
  --danger:#B23A3A;
  --ok:#5E8C6A;
  --shadow-sm:0 1px 2px rgba(20,28,34,.03),0 2px 6px rgba(20,28,34,.04);
  --shadow:0 16px 36px -26px rgba(20,28,34,.24),0 6px 16px -16px rgba(20,28,34,.12);
  --radius:14px;
  --radius-lg:22px;
  --radius-sm:9px;
  --sans:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1440px;   /* widened from 1320 to tighten the empty L/R gutters (topbar+content stay aligned) */
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);
  font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;
  font-feature-settings:'cv02','cv03','cv11';min-height:100vh;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;font-weight:800;line-height:1.1}
p{margin:0}
::selection{background:var(--accent-soft)}

/* paper grain backdrop */
body:before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:radial-gradient(circle at 1px 1px,rgba(20,18,12,.025) 1px,transparent 0);
  background-size:22px 22px;
}

.wrap{width:min(var(--maxw),100%);margin:0 auto;padding:0 40px}
.muted{color:var(--muted)}
.mono{font-family:var(--mono)}
.hidden{display:none!important}
.center{text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
  background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:999px;padding:6px 12px}

/* ---------------- Top bar + nav ---------------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(250,248,244,.82);
  backdrop-filter:blur(16px) saturate(1.2);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:28px;height:70px;width:min(var(--maxw),100%);margin:0 auto;padding:0}  /* no h-padding: topbar content aligns with the hero block's left/right edges */
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.03em}
.brand .mark{width:30px;height:30px;object-fit:cover;border-radius:7px}
.brand small{display:block;font-size:10px;font-weight:700;letter-spacing:.22em;color:var(--muted);margin-top:-3px}
.nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link,.nav-trigger{display:inline-flex;align-items:center;gap:5px;padding:8px 12px;border-radius:9px;
  font-weight:600;font-size:14px;color:var(--ink-2);background:none;border:0;cursor:pointer;font-family:inherit}
.nav-link:hover,.nav-trigger:hover,.nav-link.active{color:var(--ink);background:var(--bg-2)}
.nav-spacer{flex:1}
.nav-right{display:flex;align-items:center;gap:8px}
.nav-icon{width:38px;height:38px;display:grid;place-items:center;border-radius:9px;color:var(--muted);cursor:pointer}
.nav-icon:hover{background:var(--bg-2);color:var(--ink)}
.nav-user{font-size:13px;color:var(--muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface)}
.nav-user:before{content:'';width:7px;height:7px;border-radius:50%;background:var(--accent)}

/* dropdown */
.dropdown{position:relative}
.dropdown-menu{position:absolute;top:calc(100% + 10px);left:0;min-width:230px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.16s;z-index:60}
.dropdown.open .dropdown-menu{opacity:1;visibility:visible;transform:none}
.dropdown-menu a{display:flex;flex-direction:column;gap:2px;padding:9px 11px;border-radius:9px}
.dropdown-menu a:hover{background:var(--bg-2)}
.dropdown-menu a b{font-size:14px}
.dropdown-menu a span{font-size:12px;color:var(--muted)}
.caret{width:14px;height:14px;transition:transform .16s}
.dropdown.open .caret{transform:rotate(180deg)}

/* ---------------- Buttons ---------------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;border:1px solid transparent;
  font-family:inherit;font-weight:700;font-size:14px;padding:11px 18px;border-radius:11px;transition:.15s;white-space:nowrap;line-height:1}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:none}
.btn-primary{background:var(--ink-panel);color:#fff}
.btn-primary:hover{background:var(--ink-panel-2)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 12px 26px -14px var(--accent)}
.btn-accent:hover{background:var(--accent-ink)}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--ink);background:var(--surface)}
.btn-block{width:100%}
.btn-sm{padding:8px 13px;font-size:13px;border-radius:9px}
.btn-lg{padding:14px 24px;font-size:15px}
.btn[disabled],button[disabled]{opacity:.55;pointer-events:none}
/* Loading state: calm 3-dot pulse (one pseudo-element + box-shadow draws the two side dots). */
button.loading{position:relative;color:transparent!important;pointer-events:none}
button.loading:after{content:"";position:absolute;top:50%;left:50%;width:5px;height:5px;margin:-2.5px 0 0 -2.5px;
  border-radius:50%;color:#fff;background:currentColor;box-shadow:-8px 0 0 currentColor,8px 0 0 currentColor;
  animation:nzpulse 1.1s ease-in-out infinite}
.btn-ghost.loading:after,.mini-btn.loading:after{color:var(--ink-2)}
@keyframes nzpulse{0%,100%{opacity:.28}50%{opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}

/* link button (for google etc) */
.oauth-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px 16px;border:1px solid var(--line-2);
  background:var(--surface);border-radius:11px;font-weight:600;cursor:pointer;font-family:inherit;font-size:14px;color:var(--ink)}
.oauth-btn:hover{border-color:var(--ink)}
.oauth-btn svg{width:18px;height:18px}
.oauth-btn + .oauth-btn{margin-top:10px}   /* gap between stacked Google / GitHub buttons */

/* ---------------- Cards ---------------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm)}
.card-kicker{display:inline-flex;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin-bottom:10px}
.card h2{font-size:22px;margin-bottom:6px}

/* ---------------- Segmented control (category tabs) ---------------- */
.seg{display:inline-flex;background:var(--bg-2);border:1px solid var(--line);border-radius:999px;padding:4px;gap:2px}
.seg button{border:0;background:none;font-family:inherit;font-weight:700;font-size:13px;color:var(--muted);
  padding:8px 18px;border-radius:999px;cursor:pointer;transition:.15s;display:inline-flex;align-items:center;gap:7px}
.seg button:hover{color:var(--ink)}
.seg button.active{background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm)}
.seg button .count{font-size:11px;color:var(--soft);font-weight:600}
.seg button .soon{font-size:10px;background:var(--accent-soft);color:var(--accent);padding:1px 6px;border-radius:999px}

/* ---------------- Tabs (code/doc) ---------------- */
.tabgroup .tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin:8px 0 14px}
.tab{cursor:pointer;border:0;background:none;font-family:inherit;font-weight:700;font-size:13px;color:var(--muted);
  padding:9px 14px;border-bottom:2px solid transparent;transition:.15s}
.tab:hover{color:var(--ink)}
.tab.active{color:var(--accent);border-bottom-color:var(--accent)}
.tab-panel.hidden{display:none}

/* ---------------- Pills / tags / status ---------------- */
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
  background:var(--bg-2);border:1px solid var(--line);color:var(--ink-2)}
.tag{font-family:var(--mono);font-size:12px;background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:3px 8px;color:var(--ink-2)}
.status{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px}
.status.ok{background:var(--jade-soft);color:var(--jade-ink)}
.status.off{background:#F0EEE8;color:var(--soft)}
.dot{width:9px;height:9px;border-radius:50%;flex:none}
.dot.on{background:var(--jade);box-shadow:0 0 0 4px var(--jade-soft)}
.dot.off{background:#C9C4B8;box-shadow:0 0 0 4px rgba(150,145,130,.12)}
.kbd{font-family:var(--mono);font-size:12px;background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:2px 7px}

/* ---------------- Forms ---------------- */
label{display:block;font-weight:700;font-size:13px;color:var(--ink-2);margin:14px 0 6px}
.input,textarea.input,select.input{width:100%;border:1px solid var(--line-2);border-radius:11px;padding:11px 13px;
  font:inherit;font-size:14px;color:var(--ink);background:var(--surface);outline:none;transition:.15s}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
textarea.input{resize:vertical;min-height:96px}
.input.compact{padding:8px 10px;border-radius:8px}
.input.mini{width:84px;padding:7px 9px}
.field-hint{font-size:12px;color:var(--soft);margin-top:5px}

/* ---------------- Alerts ---------------- */
.alert{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:15px 16px;margin:14px 0;font-size:14px}
.alert.error{border-color:#E9C9C9;background:#FBF1F1;color:#8E2F2F}
.alert.accent{border-color:var(--accent-line);background:var(--accent-soft)}
.alert.elevated{box-shadow:var(--shadow)}

/* ---------------- Tables ---------------- */
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.table{width:100%;border-collapse:collapse;min-width:680px}
.table th{text-align:left;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--soft);
  font-weight:700;background:var(--bg-2);padding:12px 14px;border-bottom:1px solid var(--line)}
.table td{padding:13px 14px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:middle}
.table tr:last-child td{border-bottom:0}
.mini-btn{border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2);border-radius:8px;
  padding:6px 11px;font-weight:700;font-size:13px;cursor:pointer;font-family:inherit}
.mini-btn:hover{border-color:var(--ink);color:var(--ink)}
.mini-btn.danger{color:var(--danger);border-color:#E9C9C9}
.mini-btn.danger:hover{background:#FBF1F1;border-color:var(--danger)}
.mini-btn.accent{color:var(--accent);border-color:var(--accent-line)}
.mini-btn.accent:hover{background:var(--accent-soft);border-color:var(--accent)}
.inline-form,.actions{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
.empty{text-align:center;color:var(--soft);padding:34px!important}
.empty b{display:block;color:var(--ink);font-size:15px;margin-bottom:3px}

/* ---------------- Code blocks ---------------- */
.codebox{background:#15140F;border:1px solid #262318;border-radius:14px;overflow:hidden;margin:12px 0}
.codebar{display:flex;justify-content:space-between;align-items:center;padding:9px 13px;background:#1C1A12;
  color:#B8B3A4;font-family:var(--mono);font-size:12px;border-bottom:1px solid #262318}
.codebox pre{margin:0;padding:15px;overflow:auto;color:#EAE6DA;font-family:var(--mono);font-size:13px;line-height:1.7;white-space:pre-wrap}
.copy-btn{border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;border-radius:8px;
  padding:5px 10px;font-weight:700;font-size:12px;cursor:pointer;font-family:inherit;display:inline-flex;align-items:center;gap:6px}
.copy-btn:hover{background:rgba(255,255,255,.12)}
.copy-btn.copied{background:var(--accent);border-color:var(--accent)}

/* ---------------- Modal ---------------- */
.modal-overlay{position:fixed;inset:0;z-index:100;background:rgba(14,14,12,.42);backdrop-filter:blur(4px);
  display:flex;align-items:flex-start;justify-content:center;padding:20px;overflow-y:auto;opacity:0;visibility:hidden;transition:.2s}
.modal-overlay.open{opacity:1;visibility:visible}
.modal{width:100%;max-width:420px;margin:auto;background:var(--surface);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow);padding:30px;transform:translateY(14px) scale(.98);transition:.2s}
.modal-overlay.open .modal{transform:none}
.modal-close{position:absolute;top:16px;right:18px;background:none;border:0;cursor:pointer;color:var(--muted);font-size:20px;line-height:1}
.modal h2{font-size:25px;text-align:center;margin-bottom:4px}
.modal .sub{text-align:center;color:var(--muted);font-size:14px;margin-bottom:20px}
.modal .divider{display:flex;align-items:center;gap:12px;color:var(--soft);font-size:12px;margin:18px 0}
.modal .divider:before,.modal .divider:after{content:"";flex:1;height:1px;background:var(--line)}
.modal-switch{text-align:center;font-size:13px;color:var(--muted);margin-top:16px}
.modal-switch a{color:var(--accent);font-weight:700;cursor:pointer}
.input-reveal{position:relative}
.input-reveal .eye{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:none;border:0;cursor:pointer;color:var(--soft);padding:4px}

/* ---------------- Footer ---------------- */
.footer{border-top:1px solid var(--line);margin-top:80px;padding:46px 0 60px}
.footer-inner{display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;align-items:flex-start}
.footer .brand small{color:var(--soft)}
.footer-cols{display:flex;gap:60px;flex-wrap:wrap}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--soft);margin-bottom:12px}
.footer-col a{display:block;color:var(--muted);font-size:14px;padding:4px 0}
.footer-col a:hover{color:var(--ink)}

/* ---------------- Toast ---------------- */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink-panel);color:#fff;
  padding:12px 20px;border-radius:12px;font-weight:600;font-size:14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;
  transition:.2s;z-index:200}
.toast.show{opacity:1;visibility:visible;transform:translateX(-50%)}

/* ================= Page sections ================= */

/* hero — fills the first screen; content TOP-aligned so the title, buttons and the feature checks all
   stay in view on shorter screens (centering pushed the buttons below the fold) */
.hero{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:start;
  min-height:calc(100svh - 70px);padding:34px 0 40px}
.hero-copy{position:relative;z-index:1}
.hero h1{font-size:clamp(44px,5.6vw,76px);font-weight:900;letter-spacing:-.042em;line-height:1.04;margin:18px 0 18px}
.hero-title{display:flex;flex-direction:column;gap:.12em}   /* slightly looser gap between the two lines */
.hero .lead{font-size:19px;color:var(--muted);max-width:580px;line-height:1.75}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-checks{display:flex;gap:20px;flex-wrap:wrap;margin-top:26px}
.hero-checks span{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink-2)}
.hero-checks span:before{content:"";width:16px;height:16px;border-radius:50%;background:var(--accent-soft);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235E8C6A' stroke-width='3'><path d='M5 12l5 5L20 7'/></svg>");background-size:11px;background-repeat:no-repeat;background-position:center}

/* art collage */
.collage{columns:2;column-gap:18px}
.collage figure{margin:0 0 18px;break-inside:avoid;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  background:var(--bg-2);box-shadow:var(--shadow-sm)}
.collage img{width:100%;height:auto;display:block;transition:transform .5s}
.collage figure:hover img{transform:scale(1.04)}
/* desktop: collage becomes a height-bounded bento that always fills the first
   screen (no overflow, all 5 images visible) and scales with the viewport.
   columns:2 masonry above is kept for <=980px (stacked below the copy). */
@media(min-width:981px){
  .hero{align-items:stretch}
  .hero-copy{align-self:center}
  .collage{
    columns:auto;
    display:grid;
    grid-template-columns:1fr 1fr;
    grid-template-rows:repeat(6,1fr);
    gap:16px;
    height:calc(100svh - 70px - 74px);   /* viewport - topbar(70) - hero padding(34+40) */
    min-height:0;
  }
  .collage figure{margin:0;width:100%;height:100%;min-height:0}
  .collage img{width:100%;height:100%;object-fit:cover;object-position:center}
  .collage figure:nth-child(1){grid-area:1/1/4/2}              /* bust  — tall, left-top    */
  .collage figure:nth-child(1) img{object-position:center 22%}/* bias to keep the face     */
  .collage figure:nth-child(4){grid-area:4/1/7/2}              /* drape — tall, left-bottom  */
  .collage figure:nth-child(3){grid-area:1/2/3/3}             /* crane — right-top          */
  .collage figure:nth-child(2){grid-area:3/2/5/3}             /* cloud — right-middle       */
  .collage figure:nth-child(5){grid-area:5/2/7/3}             /* peak  — right-bottom       */
}
.ph{aspect-ratio:1;background:linear-gradient(135deg,#EDEAE2,#E0DCD1)}
.ph.tall{aspect-ratio:2/3}
.ph.wide{aspect-ratio:3/2}

/* section heading */
.section{padding:58px 0}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:24px}
.section-head h2{font-size:clamp(26px,3vw,38px);font-weight:900;letter-spacing:-.03em}
.section-head p{color:var(--muted);margin-top:6px}

/* stats strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden}
.stats div{background:var(--surface);padding:30px 26px}
.stats b{display:block;font-size:38px;font-weight:900;letter-spacing:-.04em}
.stats b em{font-size:16px;font-style:normal;color:var(--accent)}
.stats span{color:var(--muted);font-size:13px;font-weight:600}

/* model card grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.mcard{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:.18s}
.mcard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-2)}
.mcard .thumb{aspect-ratio:3/2;overflow:hidden;background:var(--bg-2);position:relative}
.mcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.mcard:hover .thumb img{transform:scale(1.05)}
.mcard .thumb .cat{position:absolute;top:12px;left:12px}
.mcard .body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.mcard .body h3{font-size:18px;display:flex;align-items:center;gap:8px}
.mcard .body .mid{font-family:var(--mono);font-size:12px;color:var(--soft);margin-top:2px}
.mcard .body p{color:var(--muted);font-size:13.5px;margin:10px 0 14px;flex:1;line-height:1.6}
.mcard .foot{display:flex;align-items:center;justify-content:space-between;gap:10px}
.mcard .price{font-weight:800;font-size:14px}
.mcard .price s{color:var(--soft);font-weight:500;margin-left:6px}

/* coming soon panel */
.soon-panel{border:1.5px dashed var(--line-2);border-radius:var(--radius-lg);padding:60px 30px;text-align:center;color:var(--muted)}
.soon-panel .big{font-size:22px;font-weight:800;color:var(--ink);margin:10px 0 6px}

/* model detail */
.model-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;padding:38px 0 12px;align-items:start}
.model-hero .title{display:flex;align-items:center;gap:12px}
.model-hero h1{font-size:clamp(30px,4vw,46px);font-weight:900}
.model-hero .copyid{cursor:pointer;color:var(--soft)}
.model-hero .lead{color:var(--muted);font-size:16px;line-height:1.7;margin:16px 0 18px;max-width:600px}
.model-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.highlights{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm)}
.highlights h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--soft);margin-bottom:14px}
.highlights ul{list-style:none;margin:0;padding:0;display:grid;gap:13px}
.highlights li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2)}
.highlights li:before{content:"";width:18px;height:18px;flex:none;margin-top:1px;border-radius:50%;background:var(--accent-soft);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235E8C6A' stroke-width='3'><path d='M5 12l5 5L20 7'/></svg>");background-size:12px;background-repeat:no-repeat;background-position:center}

/* playground */
.pg{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:8px}
.pg .pane{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px}
.pg .pane-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.pg .pane-head h3{font-size:16px}
.pg .out{background:var(--bg);border:1px solid var(--line);border-radius:12px;min-height:240px;max-height:60vh;
  padding:16px;color:var(--ink);font-family:var(--mono);font-size:13px;white-space:pre-wrap;overflow:auto;
  user-select:text;-webkit-user-select:text}
.pg .out img{border-radius:10px;max-width:100%}
.pg .out .placeholder{color:var(--soft)}

/* ===== Chat Playground (conversational test bench for chat models) ===== */
.pg-chat{grid-template-columns:312px minmax(0,1fr)}
.seg-sm button{padding:6px 14px;font-size:13px}
.pg-side label{margin-top:0}
.pg-adv{margin-top:16px;border-top:1px solid var(--line);padding-top:14px}
.pg-adv summary{display:flex;align-items:center;gap:8px;cursor:pointer;color:var(--muted);font-size:13px;font-weight:700;list-style:none}
.pg-adv summary::-webkit-details-marker{display:none}
.pg-adv summary svg{width:15px;height:15px}
.pg-adv-body{margin-top:14px;display:flex;flex-direction:column;gap:6px}
.pg-rangelabel{display:flex;justify-content:space-between;align-items:baseline;font-size:12.5px;color:var(--muted);margin:6px 0 0}
.pg-rangelabel b{font-family:var(--mono);color:var(--ink);font-weight:700}
.pg-range{width:100%;accent-color:var(--accent);cursor:pointer}
.pg-switchrow{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--muted);margin-top:12px}
.switch{position:relative;display:inline-block;width:40px;height:22px;flex:none}
.switch input{opacity:0;width:0;height:0}
.switch .slider{position:absolute;inset:0;background:var(--line);border-radius:22px;transition:background .2s ease;cursor:pointer}
.switch .slider:before{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;background:#fff;border-radius:50%;transition:transform .2s ease;box-shadow:0 1px 2px rgba(0,0,0,.2)}
.switch input:checked + .slider{background:var(--accent)}
.switch input:checked + .slider:before{transform:translateX(18px)}
.pg-jsonbox{min-height:340px;font-size:12.5px;line-height:1.6;white-space:pre;overflow:auto}
.pg-convo{display:flex;flex-direction:column}
.chatlog{flex:1;display:flex;flex-direction:column;gap:12px;padding:16px;background:var(--bg);border:1px solid var(--line);
  border-radius:14px;height:50vh;min-height:300px;max-height:560px;overflow-y:auto}
.chat-empty{margin:auto;display:flex;flex-direction:column;align-items:center;gap:7px;color:var(--soft);text-align:center;padding:24px}
.chat-empty svg{width:40px;height:40px;color:var(--accent-line)}
.chat-empty b{color:var(--muted);font-size:15px;font-weight:800}
.chat-empty span{font-size:13px}
.chat-msg{max-width:84%;padding:10px 14px;border-radius:15px;font-size:14px;line-height:1.6;white-space:pre-wrap;word-break:break-word;user-select:text}
.chat-msg.user{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:5px}
.chat-msg.assistant{align-self:flex-start;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-bottom-left-radius:5px;box-shadow:var(--shadow-sm)}
.chat-msg.pending{color:var(--soft)}
.chat-think{align-self:flex-start;max-width:84%;border:1px solid var(--line);border-radius:12px;background:var(--bg-2);font-size:13px;overflow:hidden}
.chat-think>summary{cursor:pointer;padding:8px 13px;color:var(--muted);font-weight:600;list-style:none;user-select:none}
.chat-think>summary::-webkit-details-marker{display:none}
.chat-think>summary::before{content:'\25B8';display:inline-block;margin-right:7px;transition:transform .15s}
.chat-think[open]>summary::before{transform:rotate(90deg)}
.chat-think-body{padding:2px 13px 11px;white-space:pre-wrap;word-break:break-word;color:var(--muted);line-height:1.6;border-top:1px solid var(--line);margin-top:2px;padding-top:9px}
.chat-input{display:flex;align-items:flex-end;gap:8px;margin-top:12px;border:1px solid var(--line);border-radius:14px;
  padding:8px 8px 8px 14px;background:var(--surface);transition:border-color .15s ease,box-shadow .15s ease}
.chat-input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.chat-ta{flex:1;border:0;outline:0;resize:none;background:transparent;font:inherit;font-size:14px;line-height:1.5;color:var(--ink);max-height:160px;padding:6px 0}
.chat-send{flex:none;width:38px;height:38px;border-radius:11px;border:0;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s ease,opacity .15s ease}
.chat-send svg{width:18px;height:18px}
.chat-send:hover{background:var(--accent-ink)}
.chat-send:disabled{opacity:.5;cursor:default}
.chat-attach{flex:none;width:38px;height:38px;border-radius:11px;border:0;background:transparent;color:var(--soft);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s ease,color .15s ease}
.chat-attach svg{width:18px;height:18px}
.chat-attach:hover{background:var(--accent-soft);color:var(--accent)}
.chat-attach:disabled{opacity:.5;cursor:default}
.chat-attach-preview{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.chat-attach-preview .thumb{position:relative;width:64px;height:64px;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.chat-attach-preview .thumb img{width:100%;height:100%;object-fit:cover}
.chat-attach-preview .thumb button{position:absolute;top:2px;right:2px;width:18px;height:18px;border:0;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;font-size:12px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}
.chat-msg img.chat-img{max-width:220px;max-height:220px;border-radius:10px;margin-top:6px;display:block}
@media(max-width:980px){.pg-chat{grid-template-columns:1fr}.chatlog{height:46vh}}

/* docs layout */
.doc-shell{display:grid;grid-template-columns:210px minmax(0,1fr);gap:38px;padding:34px 0}
.doc-toc{position:sticky;top:84px;align-self:start;display:flex;flex-direction:column;gap:2px}
.doc-toc a{padding:7px 11px;border-radius:8px;font-size:14px;color:var(--muted)}
.doc-toc a:hover,.doc-toc a.active{background:var(--bg-2);color:var(--ink)}
.doc-toc .toc-group{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--soft);font-weight:800;margin:16px 0 4px;padding:0 11px}
.lang-dd .dropdown-menu a b{font-weight:600}
.doc-content{min-width:0}
.doc-content section{margin-bottom:26px;scroll-margin-top:80px}
.doc-content h2{font-size:24px;margin-bottom:6px}
.doc-content h3{font-size:16px;margin:18px 0 6px}
.doc-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:10px}
.copy-page .dropdown-menu{left:auto;right:0;min-width:250px}
.copy-page .dropdown-menu a{flex-direction:row;align-items:center;gap:10px}
.copy-page .dropdown-menu .ic{width:18px;text-align:center}

/* dashboard / console shell */
.shell{display:grid;grid-template-columns:232px minmax(0,1fr);gap:28px;padding:30px 0}
/* Full-height left rail: pinned at its natural top (70px topbar + 30px shell pad = 100px) so it does
   NOT shift on the first scroll, and fills to the viewport bottom. Stays put while content scrolls;
   future nav items scroll inside it (overflow-y:auto). */
.side{position:sticky;top:100px;align-self:start;display:flex;flex-direction:column;gap:2px;
  background:linear-gradient(160deg,#103f3c 0%,#0f3a47 46%,#122e49 100%);color:#fff;
  border-radius:var(--radius-lg);padding:18px 14px 16px;
  height:calc(100vh - 116px);overflow-y:auto;will-change:transform}
.side a{display:flex;align-items:center;padding:11px 13px;border-radius:10px;color:rgba(255,255,255,.64);
  font-weight:600;font-size:14px;transition:background .15s ease,color .15s ease}
.side a:hover{background:rgba(255,255,255,.06);color:#fff}
.side a.active{background:rgba(255,255,255,.12);color:#fff}
.work{min-width:0}
.page-hero{background:linear-gradient(135deg,var(--accent-soft),var(--surface));color:var(--ink);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 30px;margin-bottom:20px;box-shadow:var(--shadow-sm)}
.page-hero h1{font-size:28px;font-weight:900;letter-spacing:-.02em}
.page-hero p{color:var(--muted);margin-top:8px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.metric-grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.metric{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-sm)}
.metric span{color:var(--muted);font-size:13px;font-weight:600}
.metric b{display:block;font-size:28px;font-weight:900;letter-spacing:-.03em;margin:6px 0 2px}
.metric small{color:var(--soft);font-size:12px}
.dash-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;margin-bottom:20px}
.status-list{display:grid;gap:12px}
.status-row{display:flex;align-items:center;gap:10px}
.status-row b{flex:1;font-weight:700;font-size:14px}
.section-title{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:12px}
.section-title h2{font-size:19px}
.model-list{display:grid;gap:10px}
.model-list a{display:flex;justify-content:space-between;align-items:center;padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:var(--bg);}
.model-list a:hover{border-color:var(--line-2)}
.model-list b{font-size:15px}
.model-list span{color:var(--muted);font-size:13px}
.checklist{display:grid;gap:11px}
.checklist .c{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.checklist .c:before{content:"";width:18px;height:18px;flex:none;border-radius:50%;background:var(--accent-soft);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235E8C6A' stroke-width='3'><path d='M5 12l5 5L20 7'/></svg>");background-size:11px;background-repeat:no-repeat;background-position:center}

/* ---- status warn + nav badge ---- */
.status.warn{background:#FBF1D9;color:#8A6D1B}
.nav-badge{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;padding:0 5px;
  border-radius:999px;background:#E0574A;color:#fff;font-size:11px;font-weight:800;margin-left:4px}

/* ---- billing ---- */
.pkg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.pkg{position:relative;text-align:center;padding:18px 12px;border:1.5px solid var(--line);border-radius:14px;
  background:var(--surface);cursor:pointer;transition:.15s;font:inherit}
.pkg:hover{border-color:var(--accent)}
.pkg.active{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 3px var(--accent-soft)}
.pkg b{display:block;font-size:24px;font-weight:900;letter-spacing:-.02em;color:var(--ink)}
.pkg b span{font-size:12px;font-weight:700;color:var(--muted)}
.pkg .pkg-price{display:block;margin-top:6px;font-size:15px;font-weight:800;color:var(--accent-ink)}
.pkg .pkg-tag{position:absolute;top:-9px;right:8px;background:var(--accent);color:#fff;font-size:10px;font-weight:800;padding:2px 8px;border-radius:999px}
.pay-qr{display:block;width:200px;height:200px;object-fit:contain;margin:14px auto 0;border-radius:12px;border:1px solid var(--line);background:#fff}
.pay-qr.placeholder{display:flex;align-items:center;justify-content:center;padding:14px;text-align:center;color:var(--soft);font-size:13px}
.pay-amount{margin-top:14px;font-size:15px;color:var(--muted)}
.pay-amount b{font-size:22px;font-weight:900;color:var(--ink);margin-left:6px}

@media(max-width:980px){
  .hero,.model-hero,.pg,.dash-grid{grid-template-columns:1fr}
  .hero{padding:56px 0 36px;gap:36px}
  .stats,.metric-grid{grid-template-columns:repeat(2,1fr)}
  .collage{margin-top:8px}
  .shell{grid-template-columns:1fr}
  .side{position:relative;top:0;height:auto;overflow:visible;min-height:auto;flex-direction:row;flex-wrap:wrap}
  .keyname-edit-btn{opacity:.55}
  .wrap,.topbar-inner{padding-left:20px;padding-right:20px}
}
@media(max-width:860px){
  .nav{display:none}
  .footer-cols{gap:34px}
}

/* ================= Motion layer (青黛靛) ================= */
@keyframes floatUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hero,.page-hero,.model-hero{animation:floatUp .55s cubic-bezier(.2,.7,.2,1) both}
.metric{transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.metric:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent-line)}
.mcard,.model-list a,.pkg{will-change:transform}
.side a{position:relative}
.side a.active:before{content:"";position:absolute;left:3px;top:50%;transform:translateY(-50%);
  width:3px;height:15px;border-radius:3px;background:var(--jade)}
/* sheen sweep on the primary CTA */
.btn-accent{position:relative;overflow:hidden}
.btn-accent:after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(120deg,transparent 35%,rgba(255,255,255,.22) 50%,transparent 65%);
  transform:translateX(-130%)}
.btn-accent:hover:after{transform:translateX(130%);transition:transform .6s ease}
@media (prefers-reduced-motion: reduce){
  *,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ================= RTL (Arabic) ================= */
[dir=rtl] body{direction:rtl}
[dir=rtl] .nav{margin-left:0;margin-right:6px}
[dir=rtl] .side a.active:before{left:auto;right:3px}
[dir=rtl] .dropdown-menu{left:auto;right:0;text-align:right}
[dir=rtl] .copy-page .dropdown-menu{right:auto;left:0}
[dir=rtl] .lang-dd .dropdown-menu{right:auto;left:0}
[dir=rtl] label,[dir=rtl] .doc-toc,[dir=rtl] .section-head{text-align:right}
[dir=rtl] .hero-checks span,[dir=rtl] .checklist .c,[dir=rtl] .highlights li{flex-direction:row-reverse;text-align:right}
/* code / identifiers stay LTR even on RTL pages */
[dir=rtl] .codebox,[dir=rtl] .codebox pre,[dir=rtl] .mono,[dir=rtl] .kbd,[dir=rtl] .tag,[dir=rtl] code{direction:ltr;text-align:left;unicode-bidi:embed}

/* ================= Call-log input/output detail + playground billing line ================= */
.log-detail > td{background:var(--accent-soft);padding:14px 16px}
.log-io{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.log-io-label{display:block;font-size:12px;font-weight:700;color:var(--accent-ink);margin-bottom:5px;letter-spacing:.04em}
.log-io-body{margin:0;white-space:pre-wrap;word-break:break-word;max-height:260px;overflow:auto;
  font-size:13px;line-height:1.55;background:var(--surface);border:1px solid var(--line);
  border-radius:10px;padding:10px 12px;font-family:var(--mono)}
[data-log-toggle].active{color:var(--accent-ink);font-weight:700}
@media (max-width:720px){.log-io{grid-template-columns:1fr}}
.pg-bill{margin-top:10px;font-size:13px;font-weight:600;color:var(--jade-ink)}
[dir=rtl] .log-io-body{direction:ltr;text-align:left;unicode-bidi:embed}

/* Call-log input/output: a 2-line preview is always visible; click to expand to the full content. */
.log-detail .log-io-body{max-height:3.4em;overflow:hidden;cursor:pointer;transition:max-height .2s ease}
.log-detail.open .log-io-body{max-height:360px;overflow:auto;cursor:auto}
/* Clean wrapped chip row (docs quick-start model list) */
.chip-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
/* Reveal-on-button panel (e.g. the create-API-key form) */
.key-create{margin:14px 0 4px;padding:16px;border:1px dashed var(--line);border-radius:14px;background:var(--bg)}

/* API-key inline rename: click the pencil to edit the name in place (text -> input + check/cancel).
   Editing toggles `td.editing` (a class, not the `hidden` attr, which .keyname's display would override). */
.keyname{display:inline-flex;align-items:center;gap:7px}
.keyname-text{font-weight:500}
.keyname-edit-btn{display:inline-flex;align-items:center;justify-content:center;width:25px;height:25px;padding:0;
  border:none;background:transparent;color:var(--soft);border-radius:7px;cursor:pointer;opacity:0;
  transition:opacity .15s ease,background .15s ease,color .15s ease}
tr:hover .keyname-edit-btn{opacity:1}
.keyname-edit-btn:hover{background:var(--bg-2);color:var(--accent)}
.keyname-edit-btn svg{width:14px;height:14px}
.keyname-form{display:none;align-items:center;gap:6px}
.keyname-input{width:148px;padding:6px 10px;margin:0;font:inherit;font-size:14px;line-height:1.3;
  border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);outline:none;
  transition:border-color .15s ease,box-shadow .15s ease}
.keyname-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.keyname-act{display:inline-flex;align-items:center;justify-content:center;width:29px;height:29px;padding:0;
  border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--soft);cursor:pointer;
  transition:background .15s ease,border-color .15s ease,color .15s ease}
.keyname-act svg{width:15px;height:15px}
.keyname-act.save{color:var(--accent);border-color:var(--accent-line)}
.keyname-act.save:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.keyname-act.cancel:hover{background:var(--bg-2);color:var(--ink)}
td.editing .keyname{display:none}
td.editing .keyname-form{display:inline-flex}

/* Usage-trend table (call logs): mute zero-activity days so the active ones read first */
.trend-table{min-width:0}
.trend-table td{font-variant-numeric:tabular-nums}
.trend-table tr.trend-zero td{color:var(--soft)}

/* ================= Dark mode (opt-in via topbar toggle; choice saved to localStorage) =================
   The whole system is var-driven, so dark mode mostly re-defines the :root tokens; the rest of these
   rules patch the few surfaces that hardcode a light colour. */
:root[data-theme="dark"]{
  --bg:#0F1417; --bg-2:#161D21; --surface:#181F23;
  --ink:#E8EAE7; --ink-panel:#0B1013; --ink-panel-2:#151C20; --ink-2:#BBC2C4;
  --muted:#8A9296; --soft:#69716F;
  --line:#28302F; --line-2:#343D3C;
  --accent:#46A6C6; --accent-ink:#62B8D6; --accent-soft:rgba(70,166,198,.15); --accent-line:rgba(70,166,198,.34);
  --jade:#6FA47C; --jade-ink:#90C89D; --jade-soft:rgba(111,164,124,.16);
  --danger:#D86A6A; --ok:#6FA47C;
  --shadow-sm:0 1px 2px rgba(0,0,0,.35),0 2px 6px rgba(0,0,0,.35);
  --shadow:0 18px 40px -22px rgba(0,0,0,.75),0 8px 18px -14px rgba(0,0,0,.55);
}
:root[data-theme="dark"] body:before{opacity:.22}
:root[data-theme="dark"] .topbar{background:rgba(15,20,23,.82);border-bottom-color:var(--line)}
:root[data-theme="dark"] .alert.error{border-color:#5e2b2b;background:#241616;color:#e6a9a9}
:root[data-theme="dark"] .status.off{background:#262d2c;color:var(--soft)}
:root[data-theme="dark"] .dot.off{background:#3a4341;box-shadow:0 0 0 4px rgba(255,255,255,.05)}
:root[data-theme="dark"] .mini-btn.danger{border-color:#5e2b2b}
:root[data-theme="dark"] .mini-btn.danger:hover{background:#241616;border-color:var(--danger)}
:root[data-theme="dark"] .ph,:root[data-theme="dark"] .ph.tall,:root[data-theme="dark"] .ph.wide{background:linear-gradient(135deg,#1a2125,#11171a)}
/* topbar theme-toggle: borderless icon button; show moon in light mode, sun in dark */
.theme-toggle{border:0;background:none;padding:0}
.theme-toggle .ic-sun{display:none}
:root[data-theme="dark"] .theme-toggle .ic-moon{display:none}
:root[data-theme="dark"] .theme-toggle .ic-sun{display:block}

/* Smooth cross-document page transitions — no white flash when switching console pages. The fixed
   topbar + sidebar are named so they stay put (morph) while only the content area crossfades. */
@view-transition{navigation:auto}
.topbar{view-transition-name:nz-topbar}
.side{view-transition-name:nz-side}

/* ================= Hero animated background (ink wash + drifting aurora, behind the title) ======= */
.hero-band{position:relative}   /* full-width band so the hero bg can fill the screen edge-to-edge (no boxed gutters / no h-overflow) */
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none;
  -webkit-mask-image:radial-gradient(128% 108% at 32% 42%,#000 48%,transparent 100%);
  mask-image:radial-gradient(128% 108% at 32% 42%,#000 48%,transparent 100%)}
.aurora{position:absolute;border-radius:50%;filter:blur(66px);opacity:.55;mix-blend-mode:multiply;will-change:transform}
.aurora.a1{width:42vw;height:42vw;left:-4%;top:-8%;background:radial-gradient(circle at 35% 35%,var(--accent),transparent 68%);animation:aur1 17s ease-in-out infinite alternate}
.aurora.a2{width:38vw;height:38vw;left:30%;top:0;background:radial-gradient(circle at 50% 50%,var(--jade),transparent 68%);animation:aur2 21s ease-in-out infinite alternate}
.aurora.a3{width:34vw;height:34vw;left:8%;top:34%;background:radial-gradient(circle at 50% 50%,#7C6BBE,transparent 70%);animation:aur3 25s ease-in-out infinite alternate}
/* fractal-noise ink wash overlay (static texture; the aurora supplies the motion) */
.hero-bg:after{content:"";position:absolute;inset:0;opacity:.05;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.011' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:320px}
@keyframes aur1{from{transform:translate(0,0) scale(1)}to{transform:translate(7%,5%) scale(1.16)}}
@keyframes aur2{from{transform:translate(0,0) scale(1.05)}to{transform:translate(-6%,4%) scale(.92)}}
@keyframes aur3{from{transform:translate(0,0) scale(.95)}to{transform:translate(5%,-6%) scale(1.18)}}
:root[data-theme="dark"] .aurora{mix-blend-mode:screen;opacity:.42}
:root[data-theme="dark"] .hero-bg:after{mix-blend-mode:screen;opacity:.07}
@media(max-width:980px){.hero{min-height:auto}}  /* hero-bg stays inset:0 — no negative h-bleed (avoids mobile h-overflow) */
@media (prefers-reduced-motion: reduce){.aurora{animation:none!important}}

/* ================= FAQ accordion ================= */
.faq{display:flex;flex-direction:column;gap:12px;max-width:880px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:border-color .15s}
.faq-item[open]{border-color:var(--accent-line)}
.faq-item summary{display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;
  padding:18px 22px;font-weight:700;font-size:16px;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{font-size:24px;line-height:1;color:var(--accent);transition:transform .2s;flex:none}
.faq-item[open] .faq-ico{transform:rotate(45deg)}
.faq-a{padding:0 22px 20px;color:var(--muted);font-size:14.5px;line-height:1.75}

/* ===== Admin console rebuild (2026-07-04): health bar, charts, drawer, sortable tables ===== */
.adm-hero{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.adm-hero h1{font-size:22px;margin:0}
.adm-hero p{color:var(--muted);font-size:13px;margin:4px 0 0}
.adm-tools{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
/* health status bar */
.healthbar{display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:14px;margin-bottom:20px;font-size:14px;font-weight:600;border:1px solid}
.healthbar.ok{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent)}
.healthbar.red{background:#fef2f2;border-color:#fecaca;color:#b91c1c}
.healthbar.amber{background:#fffbeb;border-color:#fde68a;color:#b45309}
.healthbar .hb-ico{font-size:18px;line-height:1}
.healthbar .hb-list{display:flex;flex-direction:column;gap:3px;flex:1;min-width:0}
.healthbar a.hb-jump{margin-left:auto;font-size:12px;font-weight:700;white-space:nowrap;text-decoration:none;padding:5px 12px;border-radius:999px;border:1px solid currentColor;opacity:.9}
.healthbar a.hb-jump:hover{opacity:1}
/* metric group titles + window chips */
.mgroup-title{font-size:12px;font-weight:800;letter-spacing:.04em;color:var(--soft);text-transform:uppercase;margin:8px 2px 10px}
.metric .win{float:right;font-size:10px;font-weight:800;letter-spacing:.03em;color:var(--soft);background:var(--bg-2);border:1px solid var(--line);border-radius:999px;padding:1px 8px}
/* 30d bar charts */
.nz-charts{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;margin-top:12px}
.nz-chart h4{margin:0 0 8px;font-size:13px;color:var(--muted);font-weight:600}
.nz-bars{display:flex;align-items:flex-end;gap:2px;height:92px;border-bottom:1px solid var(--line);padding-bottom:1px}
.nz-bar{flex:1;min-width:2px;background:var(--accent);opacity:.78;border-radius:2px 2px 0 0}
.nz-bar:hover{opacity:1}
.nz-rev .nz-bar{background:#b45309}
.nz-nu .nz-bar{background:#3b5bdb}
.nz-axis{display:flex;justify-content:space-between;font-size:11px;color:var(--soft);margin-top:5px}
.nz-mini{height:4px;background:var(--line);border-radius:2px;margin-top:5px;min-width:60px}
.nz-mini i{display:block;height:100%;background:var(--accent);border-radius:2px}
/* sortable headers */
.table th[data-sort]{cursor:pointer;user-select:none;white-space:nowrap}
.table th[data-sort]:hover{color:var(--accent)}
.table th[data-sort].nz-asc::after{content:' ↑'}
.table th[data-sort].nz-desc::after{content:' ↓'}
/* success-rate pill */
.rate-pill{display:inline-block;font-weight:800;font-size:12px;padding:2px 9px;border-radius:999px}
.rate-pill.g{background:var(--accent-soft);color:var(--accent)}
.rate-pill.y{background:#fffbeb;color:#b45309;border:1px solid #fde68a}
.rate-pill.r{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.rate-pill.n{background:var(--bg-2);color:var(--soft)}
.mapbadge{display:inline-block;font-size:10px;font-weight:800;padding:1px 6px;border-radius:999px;background:#fffbeb;color:#b45309;border:1px solid #fde68a;margin-left:6px;cursor:help}
.warnbox{background:#fffbeb;border:1px solid #fde68a;color:#b45309;border-radius:12px;padding:10px 14px;font-size:13px;margin-bottom:14px}
/* right-side drawer */
.drawer-scrim{position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:1300;opacity:0;pointer-events:none;transition:opacity .2s}
.drawer-scrim.open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100vh;width:min(460px,94vw);background:var(--surface);border-left:1px solid var(--line);
  box-shadow:-20px 0 60px rgba(2,6,23,.28);z-index:1301;transform:translateX(100%);transition:transform .24s ease;
  display:flex;flex-direction:column}
.drawer.open{transform:none}
.drawer-top{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-top b{font-size:16px}
.drawer-x{border:0;background:none;font-size:24px;line-height:1;cursor:pointer;color:var(--soft)}
.drawer-x:hover{color:var(--ink)}
.drawer-body{padding:16px 20px;overflow:auto;flex:1}
.drawer-field{margin-bottom:14px}
.drawer-field label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:5px}
.drawer-field .hint{font-weight:400;color:var(--soft);font-size:11px}
.drawer-field input,.drawer-field select{width:100%;box-sizing:border-box}
.drawer-field .keymono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}
.drawer-row{display:flex;gap:10px}
.drawer-row>div{flex:1}
.drawer-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end}
.copyline{display:flex;gap:6px;align-items:center}
.copyline input{flex:1}
.rowclick{cursor:pointer}
.rowclick:hover{background:var(--bg-2)}

/* ===== 2026-07-04d fixes: width overflow, health dot, sparkline trend cards ===== */
/* Root cause of page-level horizontal scroll: flexible grid tracks not allowed to shrink below their
   table's min-width. minmax(0,..)+min-width:0 lets the .table-wrap scroll internally instead. */
.shell{max-width:100%}
.dash-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}
.dash-grid>*{min-width:0}
.metric-grid>*{min-width:0}
.card{overflow:hidden}
.hdot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:7px;vertical-align:middle}
/* sparkline trend cards (clearer than thin bars: headline number + area line + period delta) */
.trend-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:12px}
.trend-card{border:1px solid var(--line);border-radius:14px;padding:16px 16px 8px;background:var(--surface);min-width:0}
.trend-card .tc-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin-bottom:2px}
.trend-card .tc-title{font-size:13px;color:var(--muted);font-weight:700}
.trend-card .tc-delta{font-size:12px;font-weight:800;padding:1px 8px;border-radius:999px}
.trend-card .tc-delta.up{background:var(--accent-soft);color:var(--accent)}
.trend-card .tc-delta.down{background:#fef2f2;color:#b91c1c}
.trend-card .tc-delta.flat{background:var(--bg-2);color:var(--soft)}
.trend-card .tc-big{font-size:30px;font-weight:900;letter-spacing:-.03em;line-height:1.1}
.trend-card .tc-sub{font-size:11px;color:var(--soft);margin-bottom:8px}
.trend-card svg{display:block;width:100%;height:70px;overflow:visible}
.trend-card .tc-axis{display:flex;justify-content:space-between;font-size:11px;color:var(--soft);margin-top:4px}

/* ---- mobile topbar + hero (2026-09-10). At 390px the topbar overflowed by 41-50px (two 28px gaps + 20px paddings
   + a login link that duplicates Get-API-Key), which made the whole page scroll sideways; and both hero CTAs sat
   below the fold (zh 625 / en 745 vs ~667 visible). Owner decision: hide the login link on phones. ---- */
@media(max-width:600px){
  .topbar-inner{gap:12px;padding-left:14px;padding-right:14px}
  .nav-right{gap:6px}
  .nav-right a[data-auth="login"]{display:none}
  .hero{padding:26px 0 22px;gap:22px}
  .hero h1{font-size:clamp(34px,9.5vw,44px);margin:8px 0 10px}
  .hero .lead{font-size:16px;line-height:1.55}
  .hero-actions{margin-top:18px;gap:10px}
  .hero-checks{margin-top:18px;gap:12px}
}

/* 2026-09-25 header: items never wrap. ja/ko/es labels used to fold into vertical stacks between the
   860px hamburger breakpoint and ~1290px; now spacing tightens and flowith.js fitNav() hides the
   optional items (Resources, Contact, FAQ: all also in the footer) while the row would overflow. */
.topbar .nav-link,.topbar .nav-trigger,.topbar .nav-right .btn{white-space:nowrap}
.topbar .nav > *{flex-shrink:0}
.topbar [data-nav-opt].nav-opt-off{display:none!important}
@media(max-width:1320px){
  .topbar-inner{gap:18px}
  .topbar .nav-link,.topbar .nav-trigger{padding:8px 9px}
}