/* The two pages a visitor sees before there is a session: the sign-in form
   (_LOGIN_PAGE_HTML in api/app/main.py, served at /portal, /docs and every
   other gated page) and signup (web/signup.html).

   Laid out after the Kimi platform's sign-in: a top bar with the wordmark,
   an art panel on the left (auth.js draws a globe of glyphs into it) and a
   narrow form on the right -- grey filled inputs, one monochrome primary
   button, a grey secondary one. The panel drops away at tablet width.

   Same-origin, served by the API's /static route like shell.css, so nothing
   third-party can leave either page looking broken. Theme: <html
   data-theme> is set before first paint by the page's head snippet; these
   are the dark values, then the light ones. */

:root{
  --au-bg:#0F0F10; --au-panel:#151516; --au-fg:#F5F5F5; --au-muted:#A1A1A1;
  --au-faint:#6E6E73; --au-line:#242426; --au-fill:#1C1C1E; --au-fill-hover:#232326;
  --au-primary:#F5F5F5; --au-on-primary:#0A0A0A; --au-primary-hover:#D4D4D4;
  --au-accent:#3B8BFF; --au-accent-bg:rgba(59,139,255,.14);
  --au-bad:#F87171; --au-bad-bg:rgba(248,113,113,.1); --au-ok:#4ADE80; --au-ok-bg:rgba(74,222,128,.1);
  --au-font:'Inter',ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --au-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:dark;
}
:root[data-theme="light"]{
  --au-bg:#FFFFFF; --au-panel:#FAFAF9; --au-fg:#0A0A0A; --au-muted:#6B6B6B;
  --au-faint:#9A9A9A; --au-line:#EBEBEB; --au-fill:#F5F5F5; --au-fill-hover:#EFEFEF;
  --au-primary:#0A0A0A; --au-on-primary:#FFFFFF; --au-primary-hover:#262626;
  --au-accent:#1677FF; --au-accent-bg:#EAF3FF;
  --au-bad:#DC2626; --au-bad-bg:#FEF2F2; --au-ok:#16A34A; --au-ok-bg:#F0FDF4;
  color-scheme:light;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body.au{margin:0;background:var(--au-bg);color:var(--au-fg);font:14.5px/1.55 var(--au-font);
  -webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100vh}
.au a{color:var(--au-fg)}

/* ---------------------------------------------------------------- top bar */
.au-top{display:flex;align-items:center;gap:16px;height:72px;padding:0 24px;flex:none}
.au-mark{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--au-fg);min-width:0}
.au-mark img{height:22px;width:auto;flex:none;display:block}
.wordmark{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;white-space:nowrap}
.wordmark .w1{font-weight:700}
.wordmark .w2{color:var(--au-muted);margin-left:.34em}
.wordmark .w3{font-weight:600;background:linear-gradient(90deg,#77D0FC 0%,#1EAFFA 55%,#0092E6 100%);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
/* Kimi's ⟨Platform⟩: the product name in brackets, in the accent. */
.au-plat{color:var(--au-accent);font-size:17px;font-weight:500;letter-spacing:0;white-space:nowrap}
.au-nav{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:14px}
.au-nav a{color:var(--au-muted);text-decoration:none}
.au-nav a:hover{color:var(--au-fg)}
.au-nav a.au-pill{background:var(--au-primary);color:var(--au-on-primary);padding:7px 16px;border-radius:8px;font-weight:500}
.au-nav a.au-pill:hover{background:var(--au-primary-hover);color:var(--au-on-primary)}

/* ----------------------------------------------------------------- layout */
.au-main{flex:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;padding:0 16px 16px}
.au-art{position:relative;background:var(--au-panel);border-radius:16px;overflow:hidden;min-height:560px;display:flex;flex-direction:column}
.au-art canvas{flex:1;width:100%;min-height:0;display:block}
.au-art-foot{padding:0 32px 30px}
.au-art-foot p{margin:0;color:var(--au-muted);font-size:14.5px}
.au-art-foot .au-tags{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:14px;font-family:var(--au-mono);font-size:12.5px;color:var(--au-faint)}
.au-side{display:flex;align-items:center;justify-content:center;padding:32px 20px}
.au-form{width:100%;max-width:360px}

.au-badge{display:table;margin:0 auto 18px;background:var(--au-accent-bg);color:var(--au-accent);font-size:13px;padding:5px 12px;border-radius:999px}
.au-title{display:flex;align-items:baseline;justify-content:center;gap:8px;margin:0 0 6px;font-size:28px;font-weight:700;letter-spacing:-.01em}
.au-title .au-plat{font-size:28px;font-weight:500}
.au-sub{text-align:center;color:var(--au-muted);font-size:14px;margin:0 0 26px}

/* ------------------------------------------------------------------ steps */
/* Email -> Username -> Bind -> Secure, as a row of short bars. */
.au-steps{display:flex;gap:6px;margin:0 0 26px}
.au-step{flex:1;font-size:11.5px;color:var(--au-faint);padding-top:8px;border-top:3px solid var(--au-line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.au-step.active{color:var(--au-fg);border-top-color:var(--au-fg)}
.au-step.done{color:var(--au-muted);border-top-color:var(--au-ok)}

/* ----------------------------------------------------------------- fields */
.au-field{margin-bottom:14px}
.au-field > label{display:block;font-size:12.5px;font-weight:500;color:var(--au-muted);margin:0 0 6px}
.au input:not([type=checkbox]){width:100%;height:46px;background:var(--au-fill);border:1px solid transparent;color:var(--au-fg);
  border-radius:10px;padding:0 14px;font:inherit;font-size:14.5px;transition:border-color .12s,background .12s;margin:0}
.au input:not([type=checkbox])::placeholder{color:var(--au-faint)}
.au input:not([type=checkbox]):hover{background:var(--au-fill-hover)}
.au input:not([type=checkbox]):focus{outline:none;border-color:var(--au-accent);background:var(--au-bg)}
.au input.bad{border-color:var(--au-bad)}
.au-hint{font-size:12px;color:var(--au-faint);margin-top:6px;line-height:1.5}
/* An input with a button inside its right edge: Kimi's "Send code". */
.au-inline{position:relative}
.au-inline input{padding-right:118px!important}
.au-inline .au-inbtn{position:absolute;right:6px;top:6px;bottom:6px;width:auto;padding:0 12px;border:0;border-left:1px solid var(--au-line);
  border-radius:0 8px 8px 0;background:transparent;color:var(--au-muted);font:inherit;font-size:14px;cursor:pointer}
.au-inline .au-inbtn:hover:not(:disabled){color:var(--au-fg)}
.au-inline .au-inbtn:disabled{opacity:.5;cursor:not-allowed}
/* The username being picked, as it will be shown: @name. */
.au-at{position:relative}
.au-at::before{content:"@";position:absolute;left:14px;top:0;line-height:46px;color:var(--au-faint);pointer-events:none}
.au-at input{padding-left:30px!important}
.au-code{font-family:var(--au-mono)!important;font-size:22px!important;letter-spacing:.4em;text-align:center}
.au-check{display:flex;align-items:center;justify-content:center;gap:8px;font-size:12.5px;color:var(--au-muted);margin:18px 0 0;cursor:pointer}
.au-check input{width:15px;height:15px;margin:0;accent-color:var(--au-fg)}
.au-check a{color:var(--au-fg);text-decoration:none}
.au-check a:hover{text-decoration:underline}

/* ---------------------------------------------------------------- buttons */
.au-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;height:46px;border:0;border-radius:10px;
  background:var(--au-primary);color:var(--au-on-primary);font:inherit;font-size:15px;font-weight:500;cursor:pointer;
  text-decoration:none;transition:background .12s,opacity .12s;margin-top:6px}
.au-btn:hover:not(:disabled){background:var(--au-primary-hover)}
.au-btn:disabled{opacity:.35;cursor:not-allowed}
.au-btn.ghost{background:var(--au-fill);color:var(--au-fg);font-size:14px}
.au-btn.ghost:hover:not(:disabled){background:var(--au-fill-hover)}
.au-btn svg{width:18px;height:18px;flex:none}
.au-or{display:flex;align-items:center;gap:14px;margin:22px 0;color:var(--au-faint);font-size:12px}
.au-or::before,.au-or::after{content:"";flex:1;height:1px;background:var(--au-line)}
.au-link{background:none;border:0;padding:0;color:var(--au-muted);font:inherit;font-size:13px;cursor:pointer;text-decoration:none}
.au-link:hover:not(:disabled){color:var(--au-fg)}
.au-link:disabled{opacity:.6;cursor:not-allowed}
.au-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:14px;font-size:13px;color:var(--au-muted)}
.au-row.center{justify-content:center}
.au-foot{text-align:center;font-size:13px;color:var(--au-muted);margin-top:22px}
.au-foot a{text-decoration:none;font-weight:500}
.au-foot a:hover{text-decoration:underline}

/* --------------------------------------------------------------- messages */
.au-msg{border-radius:10px;padding:10px 12px;font-size:13px;margin:0 0 16px;line-height:1.5;background:var(--au-fill);color:var(--au-fg)}
.au-msg.err{background:var(--au-bad-bg);color:var(--au-bad)}
.au-msg.good{background:var(--au-ok-bg);color:var(--au-ok)}
.au-msg.info{background:var(--au-accent-bg);color:var(--au-accent)}
#err:empty{display:none}

/* The account being bound: @name <- address, the step's whole point. */
.au-bind{display:flex;align-items:center;gap:10px;background:var(--au-fill);border-radius:12px;padding:14px;margin:0 0 18px;font-size:14px;min-width:0}
.au-bind b,.au-bind span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.au-bind .au-arrow{color:var(--au-faint);flex:none}
.au-bind .au-avatar{flex:none;width:30px;height:30px;border-radius:50%;background:var(--au-fg);color:var(--au-bg);
  display:flex;align-items:center;justify-content:center;font-weight:600;font-size:13px;text-transform:uppercase}

.au :focus-visible{outline:2px solid var(--au-accent);outline-offset:2px}

/* ------------------------------------------------------------------ small */
@media (max-width:900px){
  .au-main{grid-template-columns:1fr;padding:0}
  .au-art{display:none}
  .au-side{align-items:flex-start;padding:24px 16px 48px}
  .au-nav a:not(.au-pill){display:none}
}
@media (max-width:480px){
  .au-top{padding:0 16px;height:60px}
  .wordmark{font-size:11px;letter-spacing:.1em}
  .au-top .au-plat{display:none}
  .au-title{font-size:24px}
  .au-title .au-plat{font-size:24px}
}