:root{
  color-scheme:dark;
  --bg:#08090a;
  --bg-elev:#0d0e10;
  --surface:rgba(255,255,255,.028);
  --surface-hover:rgba(255,255,255,.045);
  --border:rgba(255,255,255,.085);
  --border-strong:rgba(255,255,255,.14);
  --text:#f7f8f8;
  --text-2:#c9ccd1;
  --muted:#8a8f98;
  --muted-2:#62666d;
  --accent:#10a37f;
  --accent-2:#35c895;
  --accent-soft:rgba(16,163,127,.14);
  --ok:#4cb782;
  --danger:#eb5757;
  --radius:10px;
  --radius-lg:14px;
  --shadow:0 1px 0 rgba(255,255,255,.04) inset,0 8px 30px rgba(0,0,0,.42);
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;

  --accent-strong:#0d8a6b;
  --card:rgba(255,255,255,.032);
}
/* Light theme: the public site and app shell follow the OS preference. */
@media (prefers-color-scheme:light){
  :root{
    color-scheme:light;
    --bg:#ffffff;
    --bg-elev:#ffffff;
    --surface:rgba(9,9,11,.025);
    --surface-hover:rgba(9,9,11,.05);
    --border:rgba(9,9,11,.10);
    --border-strong:rgba(9,9,11,.18);
    --text:#0a0a0b;
    --text-2:#3f4147;
    --muted:#6b7075;
    --muted-2:#8b9096;
    --card:#ffffff;
    --accent:#0f9d78;
    --accent-strong:#0c8262;
    --accent-2:#0f9d78;
    --accent-soft:rgba(15,157,120,.10);
    --hairline:rgba(9,9,11,.07);
    --field:rgba(9,9,11,.02);
    --field-focus:rgba(15,157,120,.05);
    --shadow:0 1px 2px rgba(9,9,11,.06),0 12px 32px rgba(9,9,11,.07);
    --cat-power:#6b5cf6;--cat-power-bg:rgba(107,92,246,.10);--cat-power-bd:rgba(107,92,246,.28);
    --cat-flash:#1f9fd0;--cat-flash-bg:rgba(31,159,208,.10);--cat-flash-bd:rgba(31,159,208,.26);
    --cat-free:#0f9d78;--cat-free-bg:rgba(15,157,120,.10);--cat-free-bd:rgba(15,157,120,.26);
  }
  body::before{opacity:.5}
  .panel,.card,.hero-panel,.chat-shell,.conv-side{
    box-shadow:0 1px 2px rgba(9,9,11,.05),0 10px 30px rgba(9,9,11,.05);
  }
  .site-header{background:rgba(255,255,255,.82)}
  .feat:hover{box-shadow:0 12px 32px rgba(9,9,11,.09)}
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{min-height:100%}
body{
  font:14px/1.6 var(--sans);
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(1000px 500px at 50% -10%,rgba(16,163,127,.10),transparent 70%),
    radial-gradient(600px 400px at 90% 0%,rgba(56,217,185,.05),transparent 70%);
}
a{color:inherit;text-decoration:none}
.muted{color:var(--muted)}
strong{font-weight:600}
::selection{background:rgba(16,163,127,.35)}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.10);border:3px solid transparent;background-clip:content-box;border-radius:99px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.18);background-clip:content-box}
::-webkit-scrollbar-track{background:transparent}

/* ---------- Sidebar ---------- */
.sidebar{
  position:fixed;inset:0 auto 0 0;width:248px;
  display:flex;flex-direction:column;gap:22px;
  padding:20px 12px;
  background:rgba(10,11,13,.72);
  backdrop-filter:blur(20px) saturate(160%);
  border-right:1px solid var(--border);
  z-index:20;
}
.logo{
  display:flex;align-items:center;gap:10px;
  padding:6px 8px;font-size:14.5px;font-weight:600;letter-spacing:-.2px;
  color:var(--text);
}
.logo-mark{
  width:26px;height:26px;flex:0 0 26px;display:grid;place-items:center;
  border-radius:7px;font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(140deg,#10a37f,#56d9b5);
  box-shadow:0 4px 14px rgba(16,163,127,.4);
}
.side-nav{display:grid;gap:1px}
.nav-label{
  padding:0 8px 8px;font-family:var(--mono);font-size:10px;font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);
}
.side-nav a,.side-nav form button{
  display:flex;align-items:center;gap:10px;width:100%;
  padding:8px 10px;border:0;border-radius:8px;
  color:var(--muted);font:inherit;font-size:13.5px;font-weight:500;
  background:transparent;cursor:pointer;text-align:left;
  transition:background .12s ease,color .12s ease;
}
.side-nav a:hover,.side-nav form button:hover{color:var(--text);background:var(--surface-hover)}
.side-nav a.active{color:var(--text);background:var(--surface-hover)}
.side-nav svg{width:16px;height:16px;flex:0 0 16px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;opacity:.85}
.side-nav form{display:contents}
.side-foot{
  margin-top:auto;padding:12px 10px 4px;border-top:1px solid var(--border);
  color:var(--muted-2);font-size:11.5px;line-height:1.5;
}

/* ---------- Layout ---------- */
.shell{min-height:100vh;margin-left:248px;padding:42px 56px 120px;max-width:1280px}
header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:30px}
header h1{
  font-size:clamp(24px,2.6vw,30px);line-height:1.2;font-weight:600;letter-spacing:-.7px;
}
header .muted{margin-top:6px;font-size:13.5px}
.page-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border:1px solid var(--border);border-radius:99px;
  background:var(--surface);color:var(--muted);font-size:12px;font-weight:500;
}
.pill b{color:var(--text);font-weight:600}

/* ---------- Surfaces ---------- */
.panel,.card,.hero-panel,.chat-shell,.auth-stage,.conv-side{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.panel{padding:26px;max-width:720px}
.panel+.panel{margin-top:18px}
.panel.wide{max-width:1120px}
.panel h2{font-size:16px;font-weight:600;letter-spacing:-.2px;margin-bottom:4px}
.panel h1{font-size:22px;font-weight:600;letter-spacing:-.5px;margin-bottom:6px}

.eyebrow{
  display:inline-block;margin-bottom:12px;color:var(--accent-2);
  font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
}
.tag{
  display:inline-flex;align-self:flex-start;
  padding:3px 8px;border:1px solid var(--border);border-radius:6px;
  background:var(--surface-hover);color:var(--text-2);
  font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.08em;
}

/* ---------- Hero ---------- */
.hero-panel{
  padding:40px;max-width:1000px;margin-bottom:18px;overflow:hidden;
  background:linear-gradient(180deg,rgba(16,163,127,.10),rgba(255,255,255,.015));
}
.hero-panel::after{
  content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;
  border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(16,163,127,.30),transparent 68%);
}
.hero-panel h2{font-size:clamp(26px,3vw,34px);line-height:1.15;font-weight:600;letter-spacing:-1px;margin-bottom:10px;position:relative}
.hero-panel p{max-width:620px;color:var(--text-2);font-size:15px;position:relative}

/* ---------- Stats ---------- */
.status-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;max-width:1000px;margin-bottom:18px}
.status-grid .panel{padding:18px;max-width:none}
.status-grid span{display:block;color:var(--muted);font-size:11.5px;font-weight:500;letter-spacing:.02em}
.status-grid strong{display:block;margin-top:7px;font-size:20px;font-weight:600;letter-spacing:-.5px}

/* ---------- Cards / models ---------- */
.models{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:1120px}
.card{padding:20px;display:block;transition:background .14s ease,border-color .14s ease}
.card:hover{background:var(--surface-hover);border-color:var(--border-strong)}
.model{display:flex;flex-direction:column;gap:8px;padding:24px;overflow:hidden;transition:border-color .14s ease,background .14s ease}
.model:hover{border-color:var(--border-strong);background:var(--surface-hover)}
.model h2{font-size:18px;font-weight:600;letter-spacing:-.3px;margin:2px 0 0}
.model>p{color:var(--text-2);font-size:13.5px;line-height:1.6}
.model ul{margin:4px 0 2px 16px;color:var(--muted);font-size:13px}
.model li{margin:4px 0}
.model-api{
  align-self:flex-start;max-width:100%;padding:4px 8px;
  border:1px solid var(--border);border-radius:6px;
  background:rgba(0,0,0,.35);color:var(--muted);
  font-family:var(--mono);font-size:11px;word-break:break-all;
}
.model .price{color:var(--accent-2);font-family:var(--mono);font-size:11.5px;font-weight:500}

/* ---------- Forms ---------- */
label{display:block;margin:16px 0 7px;color:var(--text-2);font-size:12.5px;font-weight:500}
input,textarea,select{
  width:100%;padding:10px 12px;
  border:1px solid var(--border);border-radius:var(--radius);
  background:rgba(0,0,0,.32);color:var(--text);
  font:inherit;font-size:14px;outline:none;
  transition:border-color .12s ease,box-shadow .12s ease,background .12s ease;
}
input::placeholder,textarea::placeholder{color:var(--muted-2)}
input:focus,textarea:focus,select:focus{
  border-color:rgba(56,217,185,.55);
  background:rgba(0,0,0,.45);
  box-shadow:0 0 0 3px rgba(16,163,127,.16);
}
textarea{min-height:140px;resize:vertical;line-height:1.6}
select{appearance:none;cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 16px) 50%,calc(100% - 11px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
button,.button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  margin-top:18px;padding:9px 16px;
  border:1px solid rgba(255,255,255,.10);border-radius:var(--radius);
  background:linear-gradient(180deg,#24bb92,#1c9a78);
  color:#fff;font:inherit;font-size:13.5px;font-weight:550;
  cursor:pointer;
  box-shadow:0 1px 0 rgba(255,255,255,.14) inset,0 6px 20px rgba(16,163,127,.28);
  transition:filter .12s ease,transform .12s ease,opacity .12s ease;
}
button:hover,.button:hover{filter:brightness(1.09)}
button:active,.button:active{transform:translateY(1px)}
button:disabled{opacity:.55;cursor:wait;transform:none;filter:none}
.password-rule{margin-top:7px;color:var(--muted-2);font-size:12px}
.form-foot{margin-top:18px;color:var(--muted);font-size:13px}
.form-foot a{color:var(--accent-2);font-weight:500}
.form-foot a:hover{text-decoration:underline}

/* ---------- Notices ---------- */
.error,.message.error{
  border:1px solid rgba(235,87,87,.32);background:rgba(235,87,87,.10);color:#ffb4b4;
}
.error{padding:11px 14px;border-radius:var(--radius);margin:0 0 14px;font-size:13.5px}
.success{
  padding:13px 15px;border:1px solid rgba(76,183,130,.32);border-radius:var(--radius);
  background:rgba(76,183,130,.10);color:#a6e9c5;
  font-size:13.5px;word-break:break-word;margin-bottom:14px;
}
.answer{
  padding:16px;margin:16px 0;
  border:1px solid var(--border);border-radius:var(--radius);
  background:rgba(0,0,0,.3);
  color:var(--text-2);font-size:13.5px;white-space:pre-wrap;max-height:52vh;overflow:auto;
}
.code-block{
  overflow:auto;margin:18px 0;
  border:1px solid var(--border);border-radius:var(--radius);
  background:rgba(0,0,0,.45);
}
.code-block pre{padding:18px;color:#c7cee0;font:12.5px/1.7 var(--mono);white-space:pre}

/* ---------- API keys ---------- */
.api-list{margin-top:20px;border-top:1px solid var(--border)}
.api-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 2px;border-bottom:1px solid var(--border)}
.api-row div{display:grid;gap:2px;min-width:0}
.api-row b{font-size:13.5px;font-weight:500}
.api-row span{color:var(--muted);font-family:var(--mono);font-size:11.5px}
.badge{color:var(--muted-2);font-family:var(--mono);font-size:11px;white-space:nowrap}

/* ---------- Tables ---------- */
.table-wrap{overflow:auto;margin-top:16px;border:1px solid var(--border);border-radius:var(--radius)}
.usage-table{width:100%;border-collapse:collapse;font-size:13px}
.usage-table th,.usage-table td{padding:11px 14px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}
.usage-table th{position:sticky;top:0;color:var(--muted);background:#0d0e10;font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.usage-table td{color:var(--text-2)}
.usage-table tbody tr:last-child td{border-bottom:0}
.usage-table tbody tr:hover td{background:rgba(255,255,255,.025)}
.usage-table td.muted{color:var(--muted)}

/* ---------- Auth ---------- */
.auth-stage{display:flex;align-items:center;justify-content:center;padding:clamp(28px,6vh,72px) var(--hv);min-height:100vh}
.auth-visual{
  position:relative;display:flex;flex-direction:column;justify-content:center;gap:20px;
  padding:56px;overflow:hidden;
  border-right:1px solid var(--border);
  background:linear-gradient(160deg,rgba(16,163,127,.16),rgba(255,255,255,.012) 60%);
}
.auth-visual::after{
  content:"";position:absolute;width:460px;height:460px;right:-160px;top:-140px;border-radius:50%;
  background:radial-gradient(circle,rgba(16,163,127,.34),transparent 70%);
}
.auth-visual>*{position:relative}
.auth-visual h2{font-size:clamp(28px,3vw,40px);line-height:1.1;letter-spacing:-1.2px;font-weight:600}
.auth-visual p{max-width:460px;color:var(--text-2);font-size:15px}
.auth-visual ul{margin-left:18px;color:var(--muted);font-size:14px}
.auth-visual li{margin:6px 0}
.auth-visual.dark{background:linear-gradient(160deg,rgba(76,183,130,.12),rgba(16,163,127,.14))}
.auth-card{
  display:flex;flex-direction:column;justify-content:center;
  min-height:520px;padding:52px;max-width:none;
  border:0;border-radius:0;box-shadow:none;background:transparent;
}
.auth-card h1{font-size:26px;font-weight:600;letter-spacing:-.7px}
.auth-card p.muted{margin-top:6px;font-size:13.5px}
.auth-switch{margin-top:18px;color:var(--muted);font-size:13px}
.auth-switch a{color:var(--accent-2);font-weight:500}
.auth-switch a:hover{text-decoration:underline}

/* ---------- Chat ---------- */
.chat-layout{display:grid;grid-template-columns:250px 1fr;gap:16px;max-width:1240px;align-items:start}
.conv-side{
  position:sticky;top:20px;display:flex;flex-direction:column;gap:4px;
  padding:14px;max-height:76vh;overflow:auto;
}
.conv-side-head{padding:4px 6px 10px;color:var(--muted-2);font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase}
.conv-item{display:block;padding:9px 10px;border-radius:8px;transition:background .12s ease}
.conv-item:hover{background:var(--surface-hover)}
.conv-item.active{background:var(--accent-soft);box-shadow:0 0 0 1px rgba(16,163,127,.35) inset}
.conv-title{font-weight:500;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.conv-meta{color:var(--muted);font-size:11px;margin-top:2px}
.conv-ts{color:var(--muted-2);font-family:var(--mono);font-size:10px;margin-top:2px}
.conv-new{
  order:-1;margin-bottom:6px;padding:9px 12px;text-align:center;
  border:1px dashed var(--border-strong);border-radius:8px;
  color:var(--text-2);font-size:12.5px;font-weight:500;
  transition:background .12s ease,border-color .12s ease,color .12s ease;
}
.conv-new:hover{background:var(--surface-hover);border-color:var(--accent);color:var(--text)}
.conv-empty,.chat-empty{color:var(--muted-2);font-size:13px;padding:14px 8px;text-align:center}
.chat-shell{max-width:100%;padding:0;display:grid;grid-template-rows:auto 1fr auto;overflow:hidden;max-height:calc(100vh - 160px)}
.chat-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--border)}
.chat-head h2{font-size:14px;font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-model{font-family:var(--mono);font-size:10.5px;color:var(--accent-2);border:1px solid var(--border);background:var(--surface);padding:3px 8px;border-radius:6px;white-space:nowrap}
.chat-scroll{min-height:44vh;overflow:auto;padding:22px 20px}
.chat-empty{margin:auto}
.message{
  max-width:78%;margin:0 0 14px;padding:12px 15px;border-radius:12px;
  font-size:13.5px;line-height:1.65;white-space:pre-wrap;word-wrap:break-word;
}
.message.user{
  margin-left:auto;
  border:1px solid rgba(16,163,127,.35);border-bottom-right-radius:4px;
  background:rgba(16,163,127,.16);
}
.message.assistant{
  border:1px solid var(--border);border-bottom-left-radius:4px;
  background:rgba(0,0,0,.3);color:var(--text-2);
}
.message.error{max-width:100%}
.chat-shell form{padding:16px 20px 20px;border-top:1px solid var(--border);background:rgba(0,0,0,.22)}
.chat-shell form label{margin-top:0}
.chat-shell label+label{margin-top:12px}
.chat-shell textarea{min-height:76px}
.chat-shell button{margin-top:14px;width:100%}

/* ---------- Footer / misc ---------- */
.footer{margin-top:40px;color:var(--muted-2);font-size:12px}
.side-foot a:hover{color:var(--muted)}

/* ---------- Responsive ---------- */
@media(max-width:1180px){
  .shell{padding:36px 32px 100px}
  .status-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:1024px){
  .models{grid-template-columns:1fr}
  .chat-layout{grid-template-columns:1fr}
  .conv-side{position:static;max-height:34vh;order:2}
  .chat-shell{max-height:none}
}
@media(max-width:980px){
  .auth-stage{grid-template-columns:1fr;min-height:0}
  .auth-visual{min-height:320px;padding:40px;border-right:0;border-bottom:1px solid var(--border)}
  .auth-card{min-height:0;padding:36px}
}
@media(max-width:820px){
  .sidebar{
    position:sticky;top:0;width:100%;height:auto;
    flex-direction:row;align-items:center;gap:14px;
    padding:10px 14px;border-right:0;border-bottom:1px solid var(--border);
    overflow-x:auto;
  }
  .sidebar .logo{padding:0;flex-shrink:0}
  .side-nav{display:flex;gap:2px}
  .side-nav .nav-label{display:none}
  .side-nav span{display:none}
  .side-nav a,.side-nav form button{padding:8px;width:auto}
  .side-foot{display:none}
  .shell{margin:0;padding:26px 16px 80px;max-width:none}
  header{flex-direction:column;gap:12px;margin-bottom:24px}
  .hero-panel{padding:26px}
  .panel{padding:20px;max-width:none}
  .message{max-width:92%}
  .status-grid{grid-template-columns:1fr}
  .usage-table th,.usage-table td{padding:9px 11px}
  .auth-visual{padding:30px}
  .auth-card{padding:26px}
}
@media(max-width:520px){
  .models{grid-template-columns:1fr}
  .chat-shell form{padding:14px 14px 16px}
  .chat-head,.chat-scroll{padding-left:14px;padding-right:14px}
}

/* ---- Batch 1: conversation rows, empty state, stop button, markdown ---- */
.conv-row{position:relative;display:flex;align-items:flex-start;gap:4px}
.conv-row .conv-item{flex:1;min-width:0}
.conv-del{
  flex:none;width:22px;height:22px;margin-top:7px;display:grid;place-items:center;
  border-radius:6px;color:var(--muted-2);font-size:11px;line-height:1;
  opacity:0;transition:opacity .12s ease,background .12s ease,color .12s ease;
}
.conv-row:hover .conv-del,.conv-del:focus-visible{opacity:1}
.conv-del:hover{background:rgba(224,86,86,.16);color:#e05656}

.chat-empty{display:flex;flex-direction:column;align-items:center;gap:8px;padding:38px 16px}
.empty-title{font-size:19px;font-weight:560;color:var(--text);letter-spacing:-.01em}
.empty-sub{font-size:13px;color:var(--muted)}
.chat-chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:12px;max-width:520px}
.chat-chip{
  padding:8px 13px;border:1px solid var(--border-strong);border-radius:999px;
  background:var(--surface);color:var(--text-2);font-size:12.5px;cursor:pointer;
  transition:background .12s ease,border-color .12s ease,color .12s ease,transform .12s ease;
}
.chat-chip:hover{background:var(--surface-hover);border-color:var(--accent);color:var(--text);transform:translateY(-1px)}

.chat-actions{display:flex;gap:8px;align-items:center}
.chat-actions button{flex:none}
#chat-stop{
  background:transparent;border:1px solid var(--border-strong);color:var(--text-2);
  padding:0 16px;border-radius:8px;font-size:13px;cursor:pointer;
  transition:background .12s ease,border-color .12s ease,color .12s ease;
}
#chat-stop:hover{background:rgba(224,86,86,.14);border-color:#e05656;color:#ffb4b4}

.message-body{display:block}
.message-body p{margin:0 0 8px}
.message-body p:last-child{margin-bottom:0}
.message-body ul,.message-body ol{margin:6px 0;padding-left:20px}
.message-body li{margin:3px 0}
.message-body code{
  font-family:var(--mono);font-size:12px;background:rgba(255,255,255,.07);
  padding:1.5px 5px;border-radius:4px;
}
.md-code{
  margin:8px 0;padding:11px 13px;overflow:auto;border-radius:8px;
  background:rgba(0,0,0,.42);border:1px solid var(--border);
}
.md-code code{background:none;padding:0;font-size:12px;line-height:1.6}
.md-h{font-weight:600;color:var(--text);margin:10px 0 6px;font-size:14px}
.message-body a{color:var(--accent-2);text-decoration:underline;text-underline-offset:2px}

.message.user .message-body{white-space:pre-wrap;word-wrap:break-word}

/* ==========================================================================
   BATCH 3 — DESIGN & MOTION
   Type as architecture, whisper-quiet layering, orchestrated motion.
   ========================================================================== */

/* ---- 3.0 Motion tokens (custom easing only; no default ease/linear) ---- */
:root{
  --e-out:cubic-bezier(.16,1,.3,1);          /* expo out  — entrances */
  --e-in-out:cubic-bezier(.87,0,.13,1);      /* expo io  — transitions */
  --e-soft:cubic-bezier(.25,1,.5,1);         /* quart out — hover */
  --t-fast:.18s;--t-mid:.32s;--t-slow:.6s;
}

/* ---- 3.1 Entrance choreography -------------------------------------------
   Structure settles first, then the header, then content cascades.
   Stagger is driven by --i set inline on children. */
@media (prefers-reduced-motion:no-preference){
  @keyframes kx-rise{from{opacity:0;transform:translate3d(0,10px,0)}to{opacity:1;transform:none}}
  @keyframes kx-fade{from{opacity:0}to{opacity:1}}
  @keyframes kx-strip{from{opacity:0;transform:translate3d(-6px,0,0)}to{opacity:1;transform:none}}
  @keyframes kx-pop{from{opacity:0;transform:translate3d(0,6px,0) scale(.985)}to{opacity:1;transform:none}}

  .sidebar{animation:kx-fade var(--t-slow) var(--e-out) both}
  .shell>header{animation:kx-rise var(--t-mid) var(--e-out) both;animation-delay:.06s}
  .shell>header>*{animation:kx-fade .4s var(--e-out) both}
  .shell>header>*:nth-child(2){animation-delay:.12s}
  .panel,.card,.model,.chat-shell,.conv-side,.auth-stage,.hero-panel{
    animation:kx-rise var(--t-mid) var(--e-out) both;
    animation-delay:calc(.14s + (var(--i,0) * 45ms));
  }
  .status-grid>*{animation:kx-pop .42s var(--e-out) both;animation-delay:calc(.2s + (var(--i,0) * 55ms))}
  .conv-row{animation:kx-strip .34s var(--e-out) both;animation-delay:calc(.1s + (var(--i,0) * 30ms))}
  .models>.model{animation-delay:calc(.16s + (var(--i,0) * 50ms))}
  .message{animation:kx-pop .3s var(--e-out) both}
}

/* ---- 3.2 Typography as architecture -------------------------------------
   Page titles get real presence; the eyebrow becomes a system marker. */
header h1{
  font-size:clamp(26px,3.2vw,38px);line-height:1.06;font-weight:600;
  letter-spacing:-.035em;text-wrap:balance;
}
header .muted{
  margin-top:9px;font-size:13.5px;color:var(--muted);letter-spacing:.005em;
  text-wrap:pretty;
}
/* Meta labels: mono, tracked, consistent everywhere */
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--accent-2);font-family:var(--mono);font-size:10px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;
}
.eyebrow::before{
  content:"";width:14px;height:1px;background:currentColor;opacity:.5;
}
.nav-label,.conv-side-head{letter-spacing:.14em}
/* Numerals align in tables and stats */
.status-grid strong,.usage-table td{
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;
}

/* ---- 3.3 Layering: one depth language, invalidation-free ---------------- */
.panel,.card,.hero-panel,.chat-shell,.auth-stage,.conv-side{
  transition:border-color var(--t-fast) var(--e-soft),background var(--t-fast) var(--e-soft),
             box-shadow var(--t-mid) var(--e-soft),transform var(--t-mid) var(--e-out);
}
.card:hover,.model:hover{
  transform:translate3d(0,-2px,0);
  box-shadow:var(--shadow),0 0 0 1px rgba(16,163,127,.16);
}
.card:active,.model:active{transform:translate3d(0,-1px,0)}

/* Focus: visible AND on-brand (keyboard only) */
:where(a,button,input,textarea,select,[tabindex]):focus-visible{
  outline:2px solid var(--accent-2);outline-offset:2px;border-radius:6px;
}

/* Branded selection already set; reinforce on dark surfaces */
.message ::selection,.md-code ::selection{background:rgba(56,217,185,.34)}

/* ---- 3.4 Model categories become a color system -------------------------
   POWER = violet (the heavy one), FLASH = cyan (fast), FREE = green (no cost).
   Color now carries meaning, not decoration. */
:root{
  --cat-power:#8b7bff;--cat-power-bg:rgba(56,217,185,.12);--cat-power-bd:rgba(56,217,185,.34);
  --cat-flash:#4fc3e8;--cat-flash-bg:rgba(79,195,232,.11);--cat-flash-bd:rgba(79,195,232,.30);
  --cat-free:#4cb782;--cat-free-bg:rgba(76,183,130,.11);--cat-free-bd:rgba(76,183,130,.30);
}
.tag{transition:background var(--t-fast) var(--e-soft),border-color var(--t-fast) var(--e-soft),color var(--t-fast) var(--e-soft)}
.tag[data-cat="POWER"]{color:var(--cat-power);background:var(--cat-power-bg);border-color:var(--cat-power-bd)}
.tag[data-cat="FLASH"]{color:var(--cat-flash);background:var(--cat-flash-bg);border-color:var(--cat-flash-bd)}
.tag[data-cat="FREE"]{color:var(--cat-free);background:var(--cat-free-bg);border-color:var(--cat-free-bd)}
/* Category rail: a 2px accent edge appears on hover */
.model::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  border-radius:0 3px 3px 0;background:transparent;
  transform:scaleY(.4);transform-origin:50% 50%;
  transition:background var(--t-mid) var(--e-soft),transform var(--t-mid) var(--e-out);
}
.model:hover::before{transform:scaleY(1)}
.model[data-cat="POWER"]:hover::before{background:var(--cat-power)}
.model[data-cat="FLASH"]:hover::before{background:var(--cat-flash)}
.model[data-cat="FREE"]:hover::before{background:var(--cat-free)}

/* Pills in the catalog header pick up category hue */
.pill{transition:border-color var(--t-fast) var(--e-soft),background var(--t-fast) var(--e-soft)}
.pill:hover{border-color:var(--border-strong);background:var(--surface-hover)}
.pill[data-cat="POWER"] b{color:var(--cat-power)}
.pill[data-cat="FLASH"] b{color:var(--cat-flash)}
.pill[data-cat="FREE"] b{color:var(--cat-free)}

/* ---- 3.5 Online / status signal -----------------------------------------
   A living dot: the only place a "breathing" animation is permitted. */
.live{display:inline-flex;align-items:center;gap:7px;color:var(--muted);font-size:12px;font-weight:500}
.live-dot{
  position:relative;width:7px;height:7px;flex:none;border-radius:50%;
  background:var(--ok);box-shadow:0 0 0 1px rgba(76,183,130,.28);
}
.live[data-state="down"] .live-dot{background:var(--danger);box-shadow:0 0 0 1px rgba(235,87,87,.28)}
@media (prefers-reduced-motion:no-preference){
  @keyframes kx-pulse{
    0%{transform:scale(1);opacity:.55}
    70%{transform:scale(2.6);opacity:0}
    100%{transform:scale(2.6);opacity:0}
  }
  .live-dot::after{
    content:"";position:absolute;inset:0;border-radius:50%;background:inherit;
    animation:kx-pulse 2.6s var(--e-out) infinite;
  }
}

/* ---- 3.6 Sidebar nav refinement ----------------------------------------- */
.side-nav a,.side-nav form button{position:relative;transition:background var(--t-fast) var(--e-soft),color var(--t-fast) var(--e-soft),transform var(--t-fast) var(--e-out)}
.side-nav a:hover,.side-nav form button:hover{transform:translate3d(2px,0,0)}
.side-nav a svg,.side-nav form button svg{transition:transform var(--t-mid) var(--e-out),opacity var(--t-fast) var(--e-soft)}
.side-nav a:hover svg,.side-nav form button:hover svg{transform:scale(1.08)}
.side-nav a.active{position:relative}
.side-nav a.active::before{
  content:"";position:absolute;left:-12px;top:50%;width:2px;height:16px;margin-top:-8px;
  border-radius:0 2px 2px 0;background:var(--accent-2);
  animation:kx-fade .4s var(--e-out) both;
}

/* ---- 3.7 Chat: the signature surface ------------------------------------
   User messages get a real gradient edge; assistant stays quiet paper. */
.message{
  position:relative;
  transition:border-color var(--t-fast) var(--e-soft),background var(--t-fast) var(--e-soft);
}
.message.user{
  background:linear-gradient(135deg,rgba(16,163,127,.22),rgba(56,217,185,.10));
  border-color:rgba(56,217,185,.30);
}
.message.assistant{background:rgba(255,255,255,.026);border-color:var(--border)}
/* Streaming caret — signals life without layout shift */
.stream-caret{
  display:inline-block;width:7px;height:2px;margin-left:2px;vertical-align:baseline;
  background:var(--accent-2);border-radius:1px;
}
@media (prefers-reduced-motion:no-preference){
  @keyframes kx-blink{0%,45%{opacity:1}55%,100%{opacity:.15}}
  .stream-caret{animation:kx-blink 1s steps(1,end) infinite}
}

/* Scrollbar inside the chat fades until hovered */
.chat-scroll{scrollbar-width:thin;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){.chat-scroll{scroll-behavior:auto}}

/* Empty state gets a quiet focal glow */
.chat-empty{position:relative}
.chat-empty::before{
  content:"";position:absolute;top:-30px;left:50%;width:280px;height:280px;margin-left:-140px;
  border-radius:50%;pointer-events:none;z-index:-1;
  background:radial-gradient(circle,rgba(16,163,127,.14),transparent 66%);
}
.empty-title{font-size:clamp(20px,2.4vw,26px);font-weight:600;letter-spacing:-.03em;text-wrap:balance}

/* ---- 3.8 Buttons: magnetic-feel press feedback -------------------------- */
button,.btn{transition:background var(--t-fast) var(--e-soft),border-color var(--t-fast) var(--e-soft),
                       color var(--t-fast) var(--e-soft),transform var(--t-fast) var(--e-out),
                       box-shadow var(--t-mid) var(--e-soft)}
button:hover,.btn:hover{box-shadow:0 0 0 1px rgba(56,217,185,.18),0 6px 18px rgba(16,163,127,.18)}
button:active,.btn:active{transform:translate3d(0,1px,0) scale(.995)}

/* ---- 3.9 Skeletons (used by Batch 4 loaders, harmless if absent) -------- */
@media (prefers-reduced-motion:no-preference){
  @keyframes kx-shimmer{from{background-position:-160% 0}to{background-position:260% 0}}
  .skeleton,.skel{
    border-radius:7px;background:linear-gradient(90deg,rgba(255,255,255,.045) 25%,rgba(255,255,255,.09) 37%,rgba(255,255,255,.045) 63%);
    background-size:220% 100%;animation:kx-shimmer 1.5s var(--e-in-out) infinite;
  }
}

/* ---- 3.10 Global reduced-motion contract -------------------------------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
}

/* ==========================================================================
   BATCH 6 — LOGIN & DASHBOARD REDESIGN
   Direction: "deep-space control room". One focal point per screen,
   atmosphere instead of empty fields, depth through light not borders.
   ========================================================================== */

/* ---- 6.0 New tokens: the redesign runs on these ------------------------- */
:root{
  --field:rgba(255,255,255,.034);
  --field-focus:rgba(56,217,185,.055);
  --hairline:rgba(255,255,255,.06);
  --glow-a:rgba(16,163,127,.55);
  --glow-b:rgba(79,195,232,.30);
  --hv:clamp(30px,4.4vw,64px);           /* dashboard gutter */
}

/* ==========================================================================
   6.1 AUTH — a single lit card in deep space
   Replaces the split panel with one focused composition. The atmosphere
   lives in the background so the card can stay calm.
   ========================================================================== */
.auth-stage{
  display:block;position:relative;
  min-height:100vh;
  padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;
  overflow:hidden;
}
/* Layered nebula: two offset radial fields + a faint grid for scale */
.auth-stage::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(760px 520px at 18% 12%,rgba(16,163,127,.20),transparent 62%),
    radial-gradient(680px 560px at 84% 88%,rgba(79,195,232,.13),transparent 64%),
    radial-gradient(1100px 700px at 50% 120%,rgba(56,217,185,.10),transparent 70%);
}
.auth-stage::after{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(620px 480px at 50% 44%,#000,transparent 72%);
          mask-image:radial-gradient(620px 480px at 50% 44%,#000,transparent 72%);
}
.auth-shell{width:100%;max-width:452px;margin:0 auto}
/* Left column: brand narrative, no card chrome */
.auth-brand{display:flex;flex-direction:column;gap:26px;max-width:520px;animation:kx-rise .6s var(--e-out) both}
.auth-lockup{display:flex;align-items:center;gap:11px;font-size:15px;font-weight:600;letter-spacing:-.02em}
.auth-brand h2{
  font-size:clamp(34px,4.6vw,58px);line-height:1.02;font-weight:600;
  letter-spacing:-.04em;text-wrap:balance;
}
.auth-brand .lede{color:var(--text-2);font-size:clamp(15px,1.5vw,17px);line-height:1.62;max-width:460px;text-wrap:pretty}
.auth-points{display:grid;gap:13px;margin-top:4px}
.auth-point{display:flex;align-items:flex-start;gap:11px;color:var(--text-2);font-size:14px}
.auth-point svg{width:17px;height:17px;flex:none;margin-top:2px;fill:none;stroke:var(--accent-2);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.auth-proof{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px;color:var(--muted-2);font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase}
.auth-proof span{display:inline-flex;align-items:center;gap:7px}
.auth-proof i{width:3px;height:3px;border-radius:50%;background:var(--muted-2);font-style:normal}

/* The card: calm surface, gradient hairline that lights on hover */
.auth-card{
  position:relative;
  display:flex;flex-direction:column;justify-content:center;
  min-height:0;max-width:486px;width:100%;justify-self:end;
  padding:clamp(30px,3.4vw,42px);
  border:1px solid var(--border);border-radius:20px;
  background:linear-gradient(180deg,rgba(255,255,255,.052),rgba(255,255,255,.018));
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 30px 80px rgba(0,0,0,.55);
  backdrop-filter:blur(22px) saturate(150%);
  animation:kx-rise .6s var(--e-out) both;animation-delay:.08s;
  transition:border-color var(--t-mid) var(--e-soft),box-shadow var(--t-mid) var(--e-soft);
}
.auth-card:hover{border-color:var(--border-strong);box-shadow:0 1px 0 rgba(255,255,255,.08) inset,0 34px 92px rgba(0,0,0,.6),0 0 0 1px rgba(56,217,185,.10)}
.auth-card h1{font-size:clamp(24px,2.4vw,29px);font-weight:600;letter-spacing:-.035em}
.auth-card p.muted{margin-top:9px;font-size:13.5px;line-height:1.6;color:var(--muted)}
.auth-form{display:flex;flex-direction:column;margin-top:6px}
.auth-field{position:relative;display:flex;flex-direction:column}
.auth-field label{margin:20px 0 8px;color:var(--text-2);font-size:12.5px;font-weight:500;letter-spacing:.005em}
.auth-field input{
  padding:12px 14px;border-radius:11px;
  border:1px solid var(--border);background:var(--field);
  font-size:14.5px;
  transition:border-color var(--t-fast) var(--e-soft),background var(--t-fast) var(--e-soft),box-shadow var(--t-fast) var(--e-soft);
}
.auth-field input:hover{border-color:var(--border-strong)}
.auth-field input:focus{
  border-color:rgba(56,217,185,.62);background:var(--field-focus);
  box-shadow:0 0 0 3.5px rgba(16,163,127,.16);
}
.auth-field input:not(:placeholder-shown):valid{border-color:rgba(56,217,185,.30)}
/* Password reveal — CSS-only toggle, CSP-safe (no inline JS) */
.pw-wrap{position:relative;display:flex;align-items:center}
.pw-wrap input{padding-right:46px}
.pw-toggle{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;display:grid;place-items:center;
  margin:0;padding:0;border:0;border-radius:8px;background:transparent;
  color:var(--muted-2);cursor:pointer;box-shadow:none;
}
.pw-toggle:hover{background:var(--surface-hover);color:var(--text-2);box-shadow:none;transform:translateY(-50%)}
.pw-toggle svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pw-toggle .eye-off{display:none}
.auth-form[data-pw="show"] .pw-toggle .eye-on{display:none}
.auth-form[data-pw="show"] .pw-toggle .eye-off{display:block}
.auth-form[data-pw="show"] .pw-wrap input{-webkit-text-security:none}

.auth-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px}
.auth-check{display:inline-flex;align-items:center;gap:8px;margin:0;color:var(--muted);font-size:12.5px;font-weight:400;cursor:pointer}
.auth-check input{width:15px;height:15px;padding:0;flex:none;accent-color:var(--accent);cursor:pointer}
.auth-meta a{color:var(--muted);font-size:12.5px}
.auth-meta a:hover{color:var(--accent-2)}

.auth-card button[type=submit]{
  margin-top:22px;padding:12px 18px;border-radius:11px;
  font-size:14px;font-weight:550;letter-spacing:-.005em;
  background:linear-gradient(180deg,#6f7be6,#5a66cb);
  box-shadow:0 1px 0 rgba(255,255,255,.18) inset,0 10px 26px rgba(16,163,127,.30);
}
.auth-card button[type=submit]:hover{
  box-shadow:0 1px 0 rgba(255,255,255,.22) inset,0 0 0 1px rgba(56,217,185,.22),0 12px 32px rgba(16,163,127,.36);
}
.auth-divider{display:flex;align-items:center;gap:12px;margin:24px 0 20px;color:var(--muted-2);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.auth-divider::before,.auth-divider::after{content:"";height:1px;flex:1;background:var(--hairline)}
.auth-switch{margin-top:0;color:var(--muted);font-size:13px;text-align:center}
.auth-switch a{color:var(--accent-2);font-weight:500}
.auth-switch a:hover{text-decoration:underline;text-underline-offset:3px}
.auth-legal{margin-top:18px;color:var(--muted-2);font-size:11.5px;line-height:1.6;text-align:center}

/* Auth form chrome must not inherit the global button margin/width */
.auth-form .pw-toggle{margin-top:0;width:32px}
.auth-card .error+.auth-form{margin-top:18px}

/* ==========================================================================
   6.2 SIDEBAR — grouped, quieter, still the anchor
   ========================================================================== */
.sidebar{gap:18px;padding:22px 13px 18px}
.logo{padding:4px 9px 2px}
.logo-mark{width:27px;height:27px;flex:0 0 27px;border-radius:8px}
.side-nav{gap:2px}
.nav-label{padding:0 9px 7px;font-size:9.5px}
.side-nav a,.side-nav form button{padding:8.5px 10px;border-radius:9px}
.side-sep{height:1px;margin:11px 9px;background:var(--hairline);border:0}
.side-foot{padding:14px 10px 2px;gap:9px;display:flex;flex-direction:column}
.side-foot .live{font-size:11.5px}

/* Tooltips for the icon-only mobile rail, and rich hint on desktop */
.side-nav a[data-tip]{position:relative}
@media (min-width:861px){
  .side-nav a[data-tip]:hover::after{
    content:attr(data-tip);position:absolute;left:calc(100% + 10px);top:50%;
    transform:translateY(-50%) translateX(-4px);
    padding:5px 9px;border-radius:7px;white-space:nowrap;
    border:1px solid var(--border-strong);background:#15161a;color:var(--text);
    font-size:11.5px;font-weight:500;letter-spacing:.005em;
    box-shadow:0 8px 24px rgba(0,0,0,.5);
    opacity:0;pointer-events:none;z-index:40;
    transition:opacity var(--t-fast) var(--e-soft),transform var(--t-fast) var(--e-out);
  }
  .side-nav a[data-tip]:hover::after{opacity:1;transform:translateY(-50%) translateX(0)}
}

/* ==========================================================================
   6.3 DASHBOARD — asymmetric bento with one true focal point
   ========================================================================== */
.dash{display:flex;flex-direction:column;gap:14px;max-width:1180px}

/* Row 1: balance hero (focal) + supporting rail */
.dash-top{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:14px}

.balance{
  position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:space-between;gap:22px;
  padding:clamp(24px,2.6vw,32px);
  border:1px solid var(--border);border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(16,163,127,.18),rgba(79,195,232,.06) 55%,rgba(255,255,255,.014));
  box-shadow:var(--shadow);
}
.balance::after{
  content:"";position:absolute;right:-140px;top:-170px;width:420px;height:420px;border-radius:50%;
  pointer-events:none;background:radial-gradient(circle,rgba(56,217,185,.30),transparent 68%);
}
.balance>*{position:relative}
.balance-head{display:flex;align-items:center;justify-content:space-between;gap:14px}
.balance-label{color:var(--muted);font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.16em;text-transform:uppercase}
.balance-value{
  display:flex;align-items:baseline;gap:3px;
  font-size:clamp(42px,6vw,66px);line-height:1;font-weight:600;letter-spacing:-.045em;
  font-variant-numeric:tabular-nums;
}
.balance-value .cur{font-size:.42em;font-weight:500;color:var(--text-2);letter-spacing:-.02em}
.balance-value .dec{font-size:.5em;color:var(--muted);font-weight:500}
.balance-note{color:var(--text-2);font-size:13.5px;max-width:380px;line-height:1.6}
.balance-actions{display:flex;gap:9px;flex-wrap:wrap}
.balance-actions .button{margin-top:0;padding:9px 15px;font-size:13px}
.button.ghost{
  background:var(--surface);color:var(--text-2);
  border:1px solid var(--border-strong);box-shadow:none;
}
.button.ghost:hover{background:var(--surface-hover);color:var(--text);border-color:var(--accent);box-shadow:none}

/* Supporting metrics rail */
.metrics{display:grid;grid-template-rows:repeat(3,1fr);gap:14px}
.metric{
  position:relative;display:flex;align-items:center;gap:14px;
  padding:16px 18px;
  border:1px solid var(--border);border-radius:var(--radius-lg);
  background:var(--surface);box-shadow:var(--shadow);
  transition:border-color var(--t-fast) var(--e-soft),background var(--t-fast) var(--e-soft),transform var(--t-mid) var(--e-out);
}
.metric:hover{border-color:var(--border-strong);background:var(--surface-hover);transform:translate3d(0,-2px,0)}
.metric-ico{
  width:34px;height:34px;flex:none;display:grid;place-items:center;border-radius:10px;
  background:rgba(56,217,185,.11);border:1px solid rgba(56,217,185,.20);
}
.metric-ico svg{width:16px;height:16px;fill:none;stroke:var(--accent-2);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.metric-body{display:grid;gap:2px;min-width:0}
.metric-lab{color:var(--muted);font-size:11.5px;font-weight:500;letter-spacing:.01em}
.metric-val{font-size:19px;font-weight:600;letter-spacing:-.03em;font-variant-numeric:tabular-nums}

/* Row 2: token flow — the only place a chart belongs */
.flow{
  padding:clamp(20px,2.2vw,26px);
  border:1px solid var(--border);border-radius:var(--radius-lg);
  background:var(--surface);box-shadow:var(--shadow);
}
.flow-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.flow-head h2{font-size:15.5px;font-weight:600;letter-spacing:-.02em}
.flow-head p{color:var(--muted);font-size:12.5px;margin-top:4px}
.flow-total{color:var(--text-2);font-family:var(--mono);font-size:11.5px;text-align:right;line-height:1.7}
.flow-total b{color:var(--text);font-weight:600}
/* Bars are proportional via --w (set inline). Semantic colors: in/out/cache. */
.flow-bars{display:grid;gap:14px}
.flow-row{display:grid;grid-template-columns:88px minmax(0,1fr) auto;align-items:center;gap:14px}
.flow-key{color:var(--muted);font-size:12.5px;font-weight:500}
.flow-track{height:9px;border-radius:99px;background:rgba(255,255,255,.05);overflow:hidden}
.flow-fill{
  height:100%;width:var(--w,0%);border-radius:99px;min-width:3px;
  background:linear-gradient(90deg,var(--c1),var(--c2));
  transform-origin:left center;
  animation:kx-grow .9s var(--e-out) both;animation-delay:.24s;
}
.flow-row[data-k="in"]{--c1:#10a37f;--c2:#56d9b5}
.flow-row[data-k="out"]{--c1:#3f9fd4;--c2:#6fd0ee}
.flow-row[data-k="cache"]{--c1:#2f8f66;--c2:#5fc99a}
.flow-num{color:var(--text-2);font-family:var(--mono);font-size:12px;font-variant-numeric:tabular-nums;min-width:64px;text-align:right}
@keyframes kx-grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}

/* Row 3: requests table gets real presence */
.requests{
  padding:0;overflow:hidden;
  border:1px solid var(--border);border-radius:var(--radius-lg);
  background:var(--surface);box-shadow:var(--shadow);
}
.requests-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px 24px 16px;border-bottom:1px solid var(--hairline)}
.requests-head h2{font-size:15.5px;font-weight:600;letter-spacing:-.02em}
.requests-head p{color:var(--muted);font-size:12.5px;margin-top:4px}
.requests .table-wrap{margin:0;border:0;border-radius:0;max-height:440px}
.requests .usage-table th{background:rgba(13,14,16,.94);backdrop-filter:blur(8px)}
.requests .usage-table td:first-child,.requests .usage-table th:first-child{padding-left:24px}
.requests .usage-table td:last-child,.requests .usage-table th:last-child{padding-right:24px;text-align:right}
.requests .usage-table td:last-child{color:var(--text)}
.requests-empty{display:flex;flex-direction:column;align-items:center;gap:9px;padding:48px 24px;text-align:center}
.requests-empty strong{font-size:15px;font-weight:560;letter-spacing:-.02em}
.requests-empty span{color:var(--muted);font-size:13px}
.requests-empty .button{margin-top:6px}

/* ==========================================================================
   6.4 Responsive
   ========================================================================== */
@media (max-width:1080px){
  .auth-shell{grid-template-columns:1fr;max-width:520px;gap:34px;padding:44px 24px;align-content:center}
  .auth-brand{align-items:flex-start}
  .auth-brand h2{font-size:clamp(30px,7vw,40px)}
  .auth-points,.auth-proof{display:none}
  .auth-card{justify-self:stretch}
  .dash-top{grid-template-columns:1fr}
  .metrics{grid-template-rows:none;grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:860px){
  .auth-shell{padding:34px 18px}
  .auth-card{padding:26px 22px;border-radius:16px}
  .metrics{grid-template-columns:1fr}
  .flow-row{grid-template-columns:70px minmax(0,1fr) auto;gap:10px}
}
@media (max-width:560px){
  .auth-brand h2{font-size:clamp(27px,8vw,34px)}
  .balance{padding:22px}
  .balance-value{font-size:clamp(38px,13vw,52px)}
  .balance-actions{width:100%}
  .balance-actions .button{flex:1}
  .requests-head{flex-direction:column;align-items:flex-start;padding:18px}
  .flow-num{min-width:0}
}


/* ============================================================
   BATCH 8 — centered auth card (pattern studied from g0i.ai
   and openrouter.ai; markup + styling authored for KrakenSNOS)
   ============================================================ */

/* stage: dark field with a soft top glow, like both references */
.auth-stage{position:relative;overflow:hidden}
.auth-stage::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 340px at 50% -10%,var(--glow-a),transparent 70%);
  opacity:.28;
}
.auth-stage::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 220px at 50% 0%,var(--glow-b),transparent 72%);
  opacity:.16;
}

/* the card itself: single centered column, hairline border */
.auth-card{
  position:relative;z-index:1;width:100%;max-width:452px;margin:0 auto;
  display:flex;flex-direction:column;
  padding:clamp(28px,5vw,40px);
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012));
  border:1px solid var(--hairline);border-radius:18px;
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 30px 80px rgba(0,0,0,.55);
  animation:kx-rise .55s var(--e-out) both;
}

/* logo lockup on top, centered — matches g0i + OpenRouter */
.auth-lockup{
  display:inline-flex;align-items:center;gap:10px;align-self:center;
  margin-bottom:26px;text-decoration:none;color:var(--text);
}
.auth-lockup .logo-mark{width:30px;height:30px;font-size:15px;border-radius:9px}
.auth-lockup-text{font-size:14.5px;font-weight:600;letter-spacing:-.02em}
.auth-lockup:hover{opacity:.88}

/* single declarative heading, sentence case with a period (g0i voice) */
.auth-card h1{
  font-size:clamp(23px,2.3vw,27px);font-weight:600;letter-spacing:-.035em;
  text-align:center;line-height:1.18;
}
.auth-sub{
  margin:10px auto 0;max-width:340px;text-align:center;
  color:var(--muted);font-size:13.5px;line-height:1.6;text-wrap:pretty;
}

/* provider block (our honest equivalent of their passkey/oauth buttons) */
.auth-providers{display:flex;flex-direction:column;gap:10px;margin-top:26px}
.auth-provider{
  display:flex;align-items:center;justify-content:center;gap:10px;width:100%;
  height:42px;padding:0 16px;
  font-family:var(--sans);font-size:13.5px;font-weight:500;color:var(--text);
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  cursor:pointer;transition:background var(--t-fast) var(--e-soft),border-color var(--t-fast) var(--e-soft),transform var(--t-fast) var(--e-soft);
}
.auth-provider:hover{background:var(--surface-hover);border-color:var(--border-strong);transform:translateY(-1px)}
.auth-provider:active{transform:translateY(0)}
.auth-provider svg{width:16px;height:16px;flex:none;fill:currentColor}

/* "or with email" divider — present in both references */
.auth-divider{
  display:flex;align-items:center;gap:12px;margin:20px 0 4px;
  color:var(--muted-2);font-size:11px;letter-spacing:.06em;text-transform:uppercase;
}
.auth-divider::before,.auth-divider::after{content:"";height:1px;flex:1;background:var(--hairline)}
.auth-divider span{white-space:nowrap}

/* form spacing tuned for the narrower centered card */
.auth-card .auth-form{margin-top:8px}
.auth-field label{margin:16px 0 7px}
.auth-card button[type=submit],.auth-submit{
  width:100%;height:42px;margin-top:22px;
  font-family:var(--sans);font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(180deg,var(--accent-2),var(--accent));
  border:0;border-radius:var(--radius);cursor:pointer;
  box-shadow:0 1px 0 rgba(255,255,255,.18) inset,0 8px 24px rgba(16,163,127,.28);
  transition:filter var(--t-fast) var(--e-soft),transform var(--t-fast) var(--e-soft),box-shadow var(--t-fast) var(--e-soft);
}
.auth-card button[type=submit]:hover,.auth-submit:hover{
  filter:brightness(1.08);transform:translateY(-1px);
  box-shadow:0 1px 0 rgba(255,255,255,.22) inset,0 12px 30px rgba(16,163,127,.36);
}
.auth-card button[type=submit]:active,.auth-submit:active{transform:translateY(0)}

/* model-family chips — the g0i signature block */
.auth-families{margin-top:26px;padding-top:20px;border-top:1px solid var(--hairline)}
.auth-families-label{
  display:block;text-align:center;color:var(--muted-2);
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
}
.auth-chips{display:flex;flex-wrap:wrap;gap:7px;justify-content:center;margin-top:11px}
.auth-chips .chip{
  padding:4px 10px;border:1px solid var(--border);border-radius:999px;
  background:var(--surface);color:var(--text-2);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.04em;
}

.auth-switch{margin-top:22px;text-align:center;color:var(--muted);font-size:13px}
.auth-switch a{color:var(--accent-2);font-weight:500}
.auth-switch a:hover{text-decoration:underline}
.auth-legal{margin-top:14px;text-align:center;color:var(--muted-2);font-size:11.5px;line-height:1.55}

/* focus rings for keyboard users (was missing entirely) */
.auth-card a:focus-visible,.auth-card button:focus-visible,
.auth-card input:focus-visible,.auth-card .auth-provider:focus-visible{
  outline:2px solid var(--accent-2);outline-offset:2px;border-radius:6px;
}

/* ---------- mobile: real phone layout ---------- */
@media (max-width:640px){
  .auth-stage{padding:24px 18px 40px;align-items:flex-start;min-height:100vh}
  .auth-card{
    max-width:100%;padding:26px 20px;border-radius:16px;
    margin-top:max(8px,6vh);
  }
  .auth-lockup{margin-bottom:22px}
  .auth-card h1{font-size:22px}
  .auth-sub{font-size:13px}
  .auth-providers{margin-top:22px}
  .auth-provider{height:46px}           /* 46px: comfortable touch target */
  .auth-card button[type=submit],.auth-submit{height:46px}
  .auth-card input{height:44px}         /* touch-friendly fields */
  .auth-chips{gap:6px}
  .auth-chips .chip{font-size:10px;padding:4px 9px}
}
@media (max-width:400px){
  .auth-stage{padding:18px 14px 32px}
  .auth-card{padding:22px 16px}
  .auth-card h1{font-size:20px}
  .auth-chips .chip{font-size:9.5px;padding:3px 8px}
}

/* ==========================================================================
   BATCH 7 — LIQUID GLASS + EMERALD IDENTITY
   Green is now the brand. Glass gives depth without adding borders:
   light passes through surfaces instead of stopping at them.
   ========================================================================== */
:root{
  --ok:#3fd39a;                /* success reads brighter than brand green */
  --cat-free:#7fd4a8;          /* free is mint: distinct from success and brand */
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.062);
  --glass-bd:rgba(255,255,255,.11);
  --glass-hi:rgba(255,255,255,.30);
  --glass-blur:blur(22px) saturate(150%);
  --glass-lift:0 1px 0 rgba(255,255,255,.09) inset,0 18px 48px rgba(0,0,0,.52);
}

/* ---- 7.1 Glass surfaces: the panel family -------------------------------
   Applied selectively. Hero, auth and chat become glass; dense data
   tables stay solid so numbers keep their contrast. */
.hero-panel,.auth-stage,.chat-shell,.conv-side{
  background:var(--glass);
  border-color:var(--glass-bd);
  box-shadow:var(--glass-lift);
  backdrop-filter:var(--glass-blur);
  -webkit-backdrop-filter:var(--glass-blur);
}
.auth-card{
  background:var(--glass-2);
  border-color:var(--glass-bd);
  box-shadow:var(--glass-lift);
  backdrop-filter:var(--glass-blur);
  -webkit-backdrop-filter:var(--glass-blur);
}
.hero-panel::before,.auth-card::before,.chat-shell::before{
  content:"";position:absolute;left:10%;right:10%;top:0;height:1px;
  pointer-events:none;border-radius:2px;
  background:linear-gradient(90deg,transparent,var(--glass-hi),transparent);
  opacity:.7;transition:opacity var(--t-mid) var(--e-soft);
}
.hero-panel:hover::before,.auth-card:hover::before{opacity:1}

/* ---- 7.2 Living gradient: the page breathes ------------------------------
   Two slow-drifting emerald fields behind everything. 20s, ease-in-out,
   transform-only so it never triggers layout. */
body::before{
  content:"";position:fixed;inset:-20vmax;z-index:-1;pointer-events:none;
  background:
    radial-gradient(46vmax 34vmax at 22% 14%,rgba(16,163,127,.16),transparent 62%),
    radial-gradient(40vmax 30vmax at 82% 78%,rgba(56,217,185,.10),transparent 64%),
    radial-gradient(52vmax 38vmax at 60% -6%,rgba(79,195,232,.07),transparent 66%);
}
@media (prefers-reduced-motion:no-preference){
  @keyframes kx-drift{
    0%,100%{transform:translate3d(0,0,0) scale(1)}
    33%{transform:translate3d(2.2%,-1.6%,0) scale(1.05)}
    66%{transform:translate3d(-1.8%,1.9%,0) scale(1.03)}
  }
  body::before{animation:kx-drift 20s var(--e-in-out) infinite;will-change:transform}
}

/* ---- 7.3 Cards lift on hover: tactility without borders ------------------ */
.card,.model{
  backdrop-filter:blur(10px) saturate(130%);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
  transition:transform var(--t-mid) var(--e-out),background var(--t-fast) var(--e-soft),border-color var(--t-fast) var(--e-soft),box-shadow var(--t-mid) var(--e-soft);
}
.card:hover,.model:hover{transform:translate3d(0,-3px,0);box-shadow:0 1px 0 rgba(255,255,255,.07) inset,0 16px 40px rgba(0,0,0,.5)}
.model[data-cat="POWER"]:hover{box-shadow:0 16px 40px rgba(0,0,0,.5),0 0 0 1px var(--cat-power-bd)}
.model[data-cat="FLASH"]:hover{box-shadow:0 16px 40px rgba(0,0,0,.5),0 0 0 1px var(--cat-flash-bd)}
.model[data-cat="FREE"]:hover{box-shadow:0 16px 40px rgba(0,0,0,.5),0 0 0 1px var(--cat-free-bd)}

/* ---- 7.4 Brand glow: emerald replaces indigo everywhere it was lighting -- */
.logo-mark{background:linear-gradient(140deg,#10a37f,#56d9b5);box-shadow:0 4px 14px rgba(16,163,127,.42)}
.side-nav a.active::before{background:var(--accent-2);box-shadow:0 0 12px rgba(56,217,185,.55)}
::selection{background:rgba(16,163,127,.34)}
.message ::selection,.md-code ::selection{background:rgba(56,217,185,.32)}

/* ==========================================================================
   BATCH 9 — PUBLIC SITE (OpenRouter-grade)
   Light-first marketing surface: airy whitespace, hairline borders, compact
   type scale, one vivid primary. Dark theme inherits automatically through
   the shared design tokens above.
   ========================================================================== */

/* ---------- 9.1 Public shell: header, nav, footer ------------------------- */
.site-wrap{display:flex;flex-direction:column;min-height:100vh}
.site-main{flex:1}
.site-header{
  position:sticky;top:0;z-index:40;
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:blur(14px) saturate(160%);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid var(--border);
}
.site-header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:650;letter-spacing:-.02em;font-size:16px;color:var(--text)}
.brand-name{white-space:nowrap}
.site-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.site-nav a{
  padding:8px 12px;border-radius:8px;font-size:14px;color:var(--muted);
  transition:color .16s ease,background .16s ease;
}
.site-nav a:hover{color:var(--text);background:var(--surface-hover)}
.site-cta{margin-left:auto;display:flex;align-items:center;gap:8px}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;padding:8px;flex-direction:column;gap:4px;cursor:pointer}
.nav-toggle span{width:20px;height:2px;background:var(--text);border-radius:2px}

/* ---------- 9.2 Buttons --------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:8px;border:1px solid transparent;
  font:inherit;font-size:14px;font-weight:550;cursor:pointer;white-space:nowrap;
  transition:background .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
}
.btn:active{transform:translateY(1px)}
.btn-sm{height:34px;padding:0 14px;font-size:13.5px}
.btn-lg{height:48px;padding:0 24px;font-size:15px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 1px 2px rgba(0,0,0,.18)}
.btn-primary:hover{background:var(--accent-strong)}
.btn-outline{background:transparent;border-color:var(--border-strong);color:var(--text)}
.btn-outline:hover{background:var(--surface-hover);border-color:var(--muted)}
.btn-ghost{background:transparent;color:var(--muted)}
.btn-ghost:hover{background:var(--surface-hover);color:var(--text)}

/* ---------- 9.3 Hero ------------------------------------------------------ */
.hero{padding:clamp(44px,6vw,76px) 24px clamp(30px,4vw,48px);text-align:center}
.hero-inner{max-width:920px;margin:0 auto}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--border);background:var(--surface);
  font-size:12.5px;font-weight:550;letter-spacing:.01em;color:var(--muted);
}
.hero h1{
  margin:22px 0 0;font-size:clamp(38px,6.2vw,68px);line-height:1.04;
  font-weight:700;letter-spacing:-.035em;color:var(--text);
}
.hero-sub{margin:20px auto 0;max-width:560px;font-size:clamp(15px,1.5vw,18px);line-height:1.55;color:var(--muted)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:30px}

.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  max-width:760px;margin:clamp(30px,4vw,44px) auto 0;text-align:center;
}
.stat-v{font-size:clamp(26px,3.4vw,38px);font-weight:680;letter-spacing:-.03em}
.stat-l{margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- 9.4 Sections -------------------------------------------------- */
.section{padding:clamp(38px,5vw,60px) 24px;max-width:1200px;margin:0 auto}
.section.narrow{max-width:900px}
.section-head{text-align:center;margin-bottom:clamp(28px,4vw,44px)}
.overline{
  display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent);
}
.section-head h2{margin:12px 0 0;font-size:clamp(24px,3.2vw,38px);font-weight:680;letter-spacing:-.03em}
.section-head p{margin:12px auto 0;max-width:560px;color:var(--muted);font-size:15px;line-height:1.6}
.section-cta{display:flex;justify-content:center;margin-top:32px}

/* ---------- 9.5 Feature grid --------------------------------------------- */
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.feat{
  padding:24px;border-radius:var(--radius-lg);border:1px solid var(--border);
  background:var(--card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.feat:hover{transform:translateY(-3px);border-color:var(--border-strong);box-shadow:0 12px 32px rgba(0,0,0,.10)}
.feat-ico{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:9px;background:var(--accent-soft);color:var(--accent);margin-bottom:14px;
}
.feat-ico svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feat h3{margin:0 0 8px;font-size:15.5px;font-weight:620;letter-spacing:-.01em}
.feat p{margin:0;font-size:13.5px;line-height:1.6;color:var(--muted)}

/* ---------- 9.6 Model list (table-like rows) ----------------------------- */
.mlist{border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:var(--card)}
.mrow{
  display:grid;grid-template-columns:minmax(0,1.7fr) 92px 110px 110px 28px;
  align-items:center;gap:14px;padding:14px 20px;
  border-bottom:1px solid var(--border);color:inherit;
  transition:background .16s ease;
}
.mrow:last-child{border-bottom:0}
.mrow:hover{background:var(--surface-hover)}
.m-id{display:flex;align-items:center;gap:12px;min-width:0}
.m-avatar{
  flex:none;width:32px;height:32px;border-radius:8px;display:grid;place-items:center;
  font-weight:650;font-size:14px;background:var(--surface-hover);color:var(--text);
  border:1px solid var(--border);
}
.m-avatar[data-cat=POWER]{background:var(--cat-power-bg);color:var(--cat-power);border-color:var(--cat-power-bd)}
.m-avatar[data-cat=FLASH]{background:var(--cat-flash-bg);color:var(--cat-flash);border-color:var(--cat-flash-bd)}
.m-avatar[data-cat=FREE]{background:var(--cat-free-bg);color:var(--cat-free);border-color:var(--cat-free-bd)}
.m-name{display:flex;flex-direction:column;gap:2px;min-width:0}
.m-name b{font-size:14.5px;font-weight:600;letter-spacing:-.01em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.m-name code{font-family:var(--mono);font-size:11.5px;color:var(--muted-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.m-cat{
  justify-self:start;padding:3px 9px;border-radius:999px;font-size:10.5px;font-weight:600;letter-spacing:.06em;
  border:1px solid var(--border);background:var(--surface-hover);color:var(--muted);
}
.m-cat[data-cat=POWER]{background:var(--cat-power-bg);color:var(--cat-power);border-color:var(--cat-power-bd)}
.m-cat[data-cat=FLASH]{background:var(--cat-flash-bg);color:var(--cat-flash);border-color:var(--cat-flash-bd)}
.m-cat[data-cat=FREE]{background:var(--cat-free-bg);color:var(--cat-free);border-color:var(--cat-free-bd)}
.m-price{display:flex;flex-direction:column;gap:2px;text-align:right}
.m-price b{font-size:13.5px;font-weight:600;font-variant-numeric:tabular-nums}
.m-price i{font-style:normal;font-size:11px;color:var(--muted-2)}
.m-arrow{color:var(--muted-2);text-align:right;transition:transform .16s ease,color .16s ease}
.mrow:hover .m-arrow{color:var(--accent);transform:translateX(3px)}

/* ---------- 9.7 Pricing --------------------------------------------------- */
.price-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:start}
.price-card{
  padding:26px;border-radius:var(--radius-lg);border:1px solid var(--border);
  background:var(--card);display:flex;flex-direction:column;gap:12px;position:relative;
}
.price-card.featured{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 18px 44px rgba(0,0,0,.14)}
.price-tag{
  position:absolute;top:-11px;left:26px;padding:3px 10px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:10.5px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
}
.price-card h3{margin:0;font-size:16px;font-weight:620}
.price-value{font-size:30px;font-weight:680;letter-spacing:-.03em}
.price-value i{font-style:normal;font-size:13px;font-weight:500;color:var(--muted)}
.price-card p{margin:0;font-size:13.5px;line-height:1.6;color:var(--muted)}
.price-card ul{list-style:none;margin:4px 0 8px;padding:0;display:flex;flex-direction:column;gap:9px}
.price-card li{position:relative;padding-left:24px;font-size:13.5px;color:var(--text-2)}
.price-card li::before{
  content:"";position:absolute;left:0;top:4px;width:14px;height:14px;border-radius:50%;
  background:var(--accent-soft);
}
.price-card li::after{
  content:"";position:absolute;left:4.5px;top:8px;width:5px;height:2.5px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg);
}

/* ---------- 9.8 FAQ ------------------------------------------------------- */
.faqs{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card);overflow:hidden}
.faq{border-bottom:1px solid var(--border)}
.faq:last-child{border-bottom:0}
.faq summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:14.5px;font-weight:560;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none}
.faq-sign{position:relative;flex:none;width:14px;height:14px}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--muted);border-radius:2px}
.faq-sign::before{left:0;top:6px;width:14px;height:2px}
.faq-sign::after{left:6px;top:0;width:2px;height:14px;transition:transform .18s ease}
.faq[open] .faq-sign::after{transform:scaleY(0)}
.faq p{margin:0;padding:0 22px 20px;color:var(--muted);font-size:13.5px;line-height:1.65}

/* ---------- 9.9 CTA band + footer ---------------------------------------- */
.cta-band{padding:clamp(44px,6vw,72px) 24px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface)}
.cta-band-inner{max-width:720px;margin:0 auto;text-align:center}
.cta-band h2{margin:0;font-size:clamp(24px,3.2vw,36px);font-weight:680;letter-spacing:-.03em}
.cta-band p{margin:12px auto 0;color:var(--muted);font-size:15px}
.site-footer{border-top:1px solid var(--border);padding:clamp(36px,5vw,56px) 24px 28px;background:var(--bg)}
.site-footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.4fr 2fr;gap:40px}
.footer-brand p{margin:14px 0 0;max-width:320px;font-size:13.5px;line-height:1.65;color:var(--muted)}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-col{display:flex;flex-direction:column;gap:10px}
.footer-col h4{margin:0 0 2px;font-size:12px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--muted-2)}
.footer-col a{font-size:13.5px;color:var(--muted);transition:color .16s ease}
.footer-col a:hover{color:var(--text)}
.footer-bottom{
  max-width:1200px;margin:32px auto 0;padding-top:20px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:var(--muted-2);
}

/* ---------- 9.10 Responsive ---------------------------------------------- */
@media (max-width:1024px){
  .feats{grid-template-columns:repeat(2,1fr)}
  .site-footer-inner{grid-template-columns:1fr;gap:28px}
}
@media (max-width:820px){
  .site-nav{display:none}
  .nav-toggle{display:flex}
  .site-cta .btn-ghost{display:none}
  .price-cards{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr);gap:26px}
  .mrow{grid-template-columns:minmax(0,1fr) 92px 28px;gap:12px}
  .mrow .m-price{display:none}
}
@media (max-width:560px){
  .site-header-inner{padding:0 16px;gap:16px}
  .feats{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:1fr 1fr}
  .hero-cta .btn{flex:1 1 auto}
  .m-cat{display:none}
  .mrow{grid-template-columns:minmax(0,1fr) 24px;padding:13px 16px}
}

/* ---------- 9.11 Section head inside app shell (models page) ------------ */
.shell .section-head h2{font-size:clamp(20px,2.4vw,26px)}
.shell .section-head p{max-width:640px;margin-left:0}
.shell .mlist{background:var(--panel,rgba(255,255,255,.03))}

/* ---------- 9.12 App shell polish: match public design language ---------- */
.shell{padding-top:34px}
.shell>header{margin-bottom:22px}
.shell>header h1{font-size:clamp(24px,2.6vw,30px);font-weight:680;letter-spacing:-.03em}
.shell>header .muted{font-size:13.5px}
.dash .metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;align-content:start}
.metrics .metric{
  padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius-lg);
  background:var(--card);display:flex;align-items:center;gap:14px;
}
.metric-ico{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;flex:none;border-radius:9px;background:var(--accent-soft);color:var(--accent)}
.metric-ico svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.metric-body{display:flex;flex-direction:column;gap:2px;min-width:0}
.metric-lab{font-size:12px;color:var(--muted)}
.metric-val{font-size:19px;font-weight:660;letter-spacing:-.02em}
.flow,.requests{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card);padding:22px 24px}
.flow-head h2,.requests-head h2{font-size:17px;font-weight:640;letter-spacing:-.02em}
.flow-head p,.requests-head p{font-size:13px;color:var(--muted);margin-top:4px}
.chat-shell{border:1px solid var(--border);border-radius:var(--radius-lg)}
.conv-side{border:1px solid var(--border);border-radius:var(--radius-lg)}
@media (max-width:1024px){.dash .metrics{grid-template-columns:1fr}}

/* ---------- 9.13 Form fields in the app shell (light + dark) ------------ */
.panel input,.panel textarea,.panel select,.shell input,.shell textarea,.shell select{
  width:100%;background:var(--field);border:1px solid var(--border);color:var(--text);
  border-radius:var(--radius);padding:11px 13px;font:inherit;font-size:14px;
  transition:border-color .16s ease,background .16s ease,box-shadow .16s ease;
}
.panel input:focus,.panel textarea:focus,.panel select:focus,
.shell input:focus,.shell textarea:focus,.shell select:focus{
  outline:none;border-color:var(--accent);background:var(--field-focus);
  box-shadow:0 0 0 3px var(--accent-soft);
}
.panel label,.shell label{display:block;margin:14px 0 6px;font-size:13px;font-weight:550;color:var(--text-2)}
.panel button,.shell button{font:inherit}
.panel{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card)}
.code-block,.panel pre{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-2)}
@media (prefers-color-scheme:light){
  .code-block,.panel pre{background:#f6f7f8}
}

/* ---------- 9.14 "How it works" steps ----------------------------------- */
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:clamp(24px,3vw,36px);
}
.step{
  padding:22px 24px;border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--card);
}
.step-n{
  display:grid;place-items:center;width:28px;height:28px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:13px;font-weight:650;margin-bottom:14px;
}
.step h3{margin:0 0 6px;font-size:15px;font-weight:620;letter-spacing:-.01em}
.step p{margin:0;font-size:13.5px;line-height:1.6;color:var(--muted)}
@media (max-width:820px){.steps{grid-template-columns:1fr}}