/* BUV Flow — public pages (landing, sign in, legal). Same tokens as the app. */
:root{
  --paper:#F0F3F8;--sheet:#FFFFFF;--sheet-2:#F6F8FB;--hover:#EEF2F9;--ink:#131E36;--ink-2:#3A465E;--muted:#6B778C;
  --line:#DDE3EC;--line-strong:#C3CCDB;--blue:#1E4FD0;--blue-deep:#173C9E;--blue-soft:#E3EAFB;--amber:#C1780F;--amber-soft:#F6E9D4;
  --on-accent:#FFFFFF;--s-done:#1E9B63;--s-blocked:#E04E5F;--s-doing:#F2A33C;--s-review:#7B5AD6;
  --shadow:0 1px 2px rgba(19,30,54,.06),0 10px 30px -14px rgba(19,30,54,.22);
  --f-display:"Archivo",system-ui,sans-serif;--f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;--f-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
:root[data-theme="dark"]{
  --paper:#0C1324;--sheet:#141E36;--sheet-2:#0F1830;--hover:#1A2644;--ink:#E9EDF6;--ink-2:#C0C9DD;--muted:#93A0BA;
  --line:#26314D;--line-strong:#33405F;--blue:#6E9BFF;--blue-deep:#9BB9FF;--blue-soft:#1B2952;--amber:#E3A44E;--amber-soft:#3A2E1A;--on-accent:#0C1324;color-scheme:dark;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0C1324;--sheet:#141E36;--sheet-2:#0F1830;--hover:#1A2644;--ink:#E9EDF6;--ink-2:#C0C9DD;--muted:#93A0BA;
  --line:#26314D;--line-strong:#33405F;--blue:#6E9BFF;--blue-deep:#9BB9FF;--blue-soft:#1B2952;--amber:#E3A44E;--amber-soft:#3A2E1A;--on-accent:#0C1324;color-scheme:dark;
}}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--f-display);font-weight:700;line-height:1.15;letter-spacing:-.01em;margin:0;text-wrap:balance}
a{color:var(--blue)}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px}
.eyebrow{font-family:var(--f-mono);text-transform:uppercase;letter-spacing:.18em;font-size:10.5px;font-weight:600;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.45em;border:1px solid transparent;border-radius:8px;padding:.6em 1.1em;font-weight:600;white-space:nowrap;background:none;cursor:pointer;text-decoration:none;transition:background .15s,border-color .15s,color .15s}
.btn-primary{background:var(--blue);color:var(--on-accent)}
.btn-primary:hover{background:var(--blue-deep)}
.btn-line{color:var(--ink);border-color:var(--line-strong);background:var(--sheet)}
.btn-line:hover{border-color:var(--blue);color:var(--blue)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
/* nav */
.nav{display:flex;align-items:center;gap:14px;padding:18px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand .mark{width:32px;height:32px;border:1.5px solid var(--blue);border-radius:8px;display:grid;place-items:center;font-family:var(--f-display);font-weight:800;color:var(--blue)}
.brand b{font-family:var(--f-display);font-size:1.05rem}
.brand small{display:block;color:var(--muted);font-size:.72rem;line-height:1}
.nav .sp{margin-left:auto;display:flex;gap:8px;align-items:center}
/* hero */
.hero{padding:56px 0 40px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px;align-items:center}
.hero h1{font-size:clamp(2rem,4.5vw,3.2rem)}
.hero p.lead{font-size:1.1rem;color:var(--ink-2);max-width:52ch}
.hero .cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.hero .note{font-size:.82rem;color:var(--muted);margin-top:10px}
.shot{background:var(--sheet);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:14px;display:flex;flex-direction:column;gap:8px}
.shot .row{display:grid;grid-template-columns:6px minmax(0,1fr) 110px 84px;gap:10px;align-items:center;font-size:.82rem;border:1px solid var(--line);border-radius:8px;padding:8px 10px;background:var(--sheet-2)}
.shot .row i{display:block;height:28px;border-radius:3px;background:var(--c)}
.shot .st{color:#fff;border-radius:6px;padding:2px 8px;font-weight:600;font-size:.74rem;text-align:center;background:var(--c)}
.shot .d{font-family:var(--f-mono);font-size:.72rem;color:var(--muted);text-align:right}
.shot .g{font-family:var(--f-display);font-weight:700;color:var(--c);font-size:.9rem;margin-top:6px}
/* sections */
section{padding:36px 0}
section h2{font-size:1.6rem;margin-bottom:8px}
section p.sub{color:var(--muted);max-width:60ch;margin:0 0 22px}
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.feat{background:var(--sheet);border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:var(--shadow)}
.feat .ic{width:34px;height:34px;border-radius:8px;background:var(--blue-soft);color:var(--blue-deep);display:grid;place-items:center;font-weight:700;margin-bottom:10px}
.feat h3{font-size:1rem;margin-bottom:6px}
.feat p{margin:0;color:var(--muted);font-size:.9rem}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;counter-reset:s}
.step{position:relative;padding:18px 18px 18px 56px;background:var(--sheet);border:1px solid var(--line);border-radius:12px}
.step::before{counter-increment:s;content:counter(s);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:50%;background:var(--blue);color:var(--on-accent);display:grid;place-items:center;font-weight:700;font-family:var(--f-display)}
.step h3{font-size:.98rem;margin-bottom:4px}
.step p{margin:0;color:var(--muted);font-size:.88rem}
.sec{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.sec div{border-left:3px solid var(--s-done);padding:4px 0 4px 14px;font-size:.9rem;color:var(--ink-2)}
.sec b{display:block;color:var(--ink)}
.cta-band{background:var(--sheet);border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.cta-band h2{font-size:1.3rem;margin:0;flex:1;min-width:240px}
footer{padding:26px 0 40px;color:var(--muted);font-size:.8rem;display:flex;gap:16px;flex-wrap:wrap;align-items:center;border-top:1px solid var(--line);margin-top:20px}
footer .sp{margin-left:auto;display:flex;gap:14px}
footer a{color:var(--muted)}
/* auth card */
.auth{min-height:100vh;display:grid;place-items:center;padding:24px 16px}
.card{background:var(--sheet);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:28px;width:min(420px,100%);display:flex;flex-direction:column;gap:14px}
.card h1{font-size:1.4rem}
.card .who{color:var(--muted);font-size:.86rem;margin:0}
.card label{display:block;font-size:.8rem;font-weight:600;color:var(--ink-2);margin-bottom:5px}
.card input[type=email],.card input[type=password],.card input[type=text]{width:100%;border:1px solid var(--line-strong);border-radius:8px;padding:10px 12px;background:var(--sheet);font-size:1rem}
.card input:focus{border-color:var(--blue);outline:none}
.card .chk{display:flex;gap:8px;align-items:flex-start;font-size:.86rem;color:var(--ink-2)}
.card .chk input{margin-top:3px}
.card .err{color:var(--s-blocked);font-size:.86rem;font-weight:600;min-height:1.2em}
.card .ok{color:var(--s-done);font-size:.86rem;font-weight:600}
.card .note{font-size:.8rem;color:var(--muted);margin:0}
.card .links{display:flex;justify-content:space-between;font-size:.84rem}
.card .btn{width:100%}
.rules{list-style:none;padding:0;margin:0;font-size:.82rem;color:var(--muted);display:flex;flex-direction:column;gap:3px}
.rules li::before{content:"○ ";color:var(--line-strong)}
.rules li.ok{color:var(--s-done)}
.rules li.ok::before{content:"● "}
.code{font-family:var(--f-mono);font-size:1.4rem;letter-spacing:.3em;text-align:center}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
/* legal */
.legal{max-width:760px;margin:0 auto;padding:30px 16px 60px}
.legal h1{font-size:2rem;margin-bottom:6px}
.legal h2{font-size:1.2rem;margin:28px 0 8px}
.legal p,.legal li{color:var(--ink-2);font-size:.95rem}
.legal .draft{background:var(--amber-soft);border:1px solid color-mix(in srgb,var(--amber) 45%,var(--line));color:var(--amber);border-radius:10px;padding:10px 14px;font-size:.86rem;font-weight:600}
.legal table{border-collapse:collapse;width:100%;font-size:.88rem}
.legal td,.legal th{border:1px solid var(--line);padding:6px 10px;text-align:left;vertical-align:top}
@media(max-width:860px){.hero{grid-template-columns:1fr;padding-top:30px}.shot{order:-1}}