/* NAIQ Health AI — Lung Nodule Assessment
   Visual system inherited from naiq.in (Okta-indigo apple-glass). */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --bg:#ffffff; --bg-soft:#f6f4ff; --bg-card:#fcfbff;
  --text:#14121f; --text-2:#3a3850; --text-3:#565270; --text-4:#7c7895;
  --border:rgba(74,24,224,0.10); --border-2:rgba(74,24,224,0.22);
  --accent:#4a18e0; --accent-h:#5b2bff; --blue:#2b1bff; --orange:#ff7438;
  --grad:linear-gradient(135deg,#4a18e0 0%,#6b3df6 38%,#b16ad6 66%,#ff9e6d 100%);
  --grad-soft:linear-gradient(135deg,rgba(74,24,224,.08),rgba(255,116,56,.08));
  --radius:18px; --radius-sm:12px; --nav-h:60px;
  --font:"Inter","SF Pro Text",-apple-system,BlinkMacSystemFont,Helvetica,Arial,sans-serif;
  --serif:"Fraunces",Georgia,serif;
  --shadow:0 8px 30px rgba(74,24,224,.08);
  --shadow-lg:0 20px 60px rgba(74,24,224,.14);
  --ok:#1b998b; --warn:#e0870b; --risk:#d64550;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;line-height:1.55;padding-top:var(--nav-h)}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-h)}

/* ---------- glass nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(16px,4vw,40px);
  background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(20px);
  -webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px}
.brand img{width:26px;height:26px;border-radius:7px}
.brand .sub{font-weight:500;color:var(--text-3);font-size:13px;
  padding-left:10px;margin-left:4px;border-left:1px solid var(--border-2)}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:500}
.nav-links a{color:var(--text-2)}
.nav-links .pill{background:var(--grad-soft);border:1px solid var(--border-2);
  color:var(--accent);padding:5px 12px;border-radius:100px;font-size:12.5px;font-weight:600}
@media(max-width:720px){.nav-links a:not(.pill){display:none}.brand .sub{display:none}}

/* ---------- hero ---------- */
.hero{max-width:1100px;margin:0 auto;padding:56px clamp(16px,4vw,40px) 20px;text-align:center}
.tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--accent);background:var(--grad-soft);border:1px solid var(--border-2);
  padding:7px 15px;border-radius:100px;margin-bottom:18px}
.tag .dot{width:7px;height:7px;border-radius:50%;background:var(--orange);
  box-shadow:0 0 0 4px rgba(255,116,56,.18)}
h1{font-family:var(--serif);font-weight:500;font-size:clamp(30px,5vw,50px);
  line-height:1.08;letter-spacing:-.02em;margin-bottom:14px}
h1 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--text-3);font-size:clamp(15px,2vw,18px);max-width:640px;margin:0 auto}

/* ---------- workspace ---------- */
.wrap{max-width:1100px;margin:0 auto;padding:20px clamp(16px,4vw,40px) 40px}
.grid{display:grid;grid-template-columns:1.35fr 1fr;gap:22px}
@media(max-width:900px){.grid{grid-template-columns:1fr}}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px}
.card h3{font-size:15px;font-weight:700;margin-bottom:4px;display:flex;align-items:center;gap:8px}
.card .hint{font-size:13px;color:var(--text-4);margin-bottom:14px}

/* dropzone + canvas */
.stage{position:relative;border-radius:var(--radius-sm);overflow:hidden;
  background:#0b0a12;min-height:340px;display:flex;align-items:center;justify-content:center}
.stage.empty{background:var(--bg-soft);border:1.5px dashed var(--border-2);cursor:pointer}
.stage canvas{display:block;max-width:100%;touch-action:none;cursor:crosshair}
.drop-inner{text-align:center;color:var(--text-3);padding:30px}
.drop-inner .ic{font-size:34px;margin-bottom:8px}
.drop-inner b{color:var(--accent)}
.filetypes{font-size:12px;color:var(--text-4);margin-top:8px}

.controls{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.btn{font-family:var(--font);font-weight:600;font-size:14px;border:none;cursor:pointer;
  padding:11px 20px;border-radius:100px;transition:.18s;display:inline-flex;align-items:center;gap:8px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(43,27,255,.28)}
.btn-primary:hover{background:var(--accent-h);transform:translateY(-1px)}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--text-2);border:1px solid var(--border-2)}
.btn-ghost:hover{background:var(--bg-soft)}

/* result */
.result{min-height:340px;display:flex;flex-direction:column}
.placeholder{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;color:var(--text-4);gap:10px}
.placeholder .ic{font-size:30px;opacity:.5}
.ring-wrap{display:flex;align-items:center;gap:18px;margin:6px 0 14px}
.ring{position:relative;width:104px;height:104px;flex:none}
.ring svg{transform:rotate(-90deg)}
.ring .val{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;
  justify-content:center;font-weight:700}
.ring .val .n{font-size:24px;line-height:1}
.ring .val .l{font-size:10px;color:var(--text-4);text-transform:uppercase;letter-spacing:.06em}
.assess{font-family:var(--serif);font-size:20px;font-weight:500;margin-bottom:2px}
.assess.low{color:var(--ok)} .assess.high{color:var(--risk)}
.meta-row{font-size:13px;color:var(--text-3);margin-top:3px}
.note{font-size:12.5px;color:var(--warn);background:rgba(224,135,11,.08);
  border:1px solid rgba(224,135,11,.2);border-radius:10px;padding:9px 12px;margin-top:12px}
.spinner{width:34px;height:34px;border:3px solid var(--border-2);border-top-color:var(--accent);
  border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* disclaimer strip */
.disclaimer{max-width:1100px;margin:8px auto 0;padding:0 clamp(16px,4vw,40px)}
.disclaimer .box{background:var(--grad-soft);border:1px solid var(--border-2);
  border-radius:var(--radius-sm);padding:14px 18px;font-size:13px;color:var(--text-2);
  display:flex;gap:12px;align-items:flex-start}
.disclaimer .box b{color:var(--text)}
.disclaimer .box .ic{color:var(--orange);font-size:18px;flex:none}

/* footer */
footer{margin-top:40px;border-top:1px solid var(--border);background:var(--bg-soft)}
.foot{max-width:1100px;margin:0 auto;padding:32px clamp(16px,4vw,40px);
  display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:13.5px;color:var(--text-3)}
.foot .col b{color:var(--text);display:block;margin-bottom:8px;font-size:14px}
.foot a{display:block;color:var(--text-3);margin-bottom:5px}
.foot .brandline{max-width:320px}
.foot .brandline .lg{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--text);margin-bottom:8px}
.foot .brandline img{width:22px;height:22px;border-radius:6px}
.copy{text-align:center;padding:14px;font-size:12.5px;color:var(--text-4);border-top:1px solid var(--border)}

/* legal pages */
.legal{max-width:820px;margin:0 auto;padding:40px clamp(16px,4vw,40px)}
.legal h1{font-size:34px;text-align:left;margin-bottom:6px}
.legal .upd{color:var(--text-4);font-size:13px;margin-bottom:24px}
.legal h2{font-family:var(--font);font-size:19px;font-weight:700;margin:26px 0 8px;color:var(--text)}
.legal h3{font-size:15px;font-weight:600;margin:16px 0 6px}
.legal p,.legal li{color:var(--text-2);font-size:15px;margin-bottom:10px}
.legal ul{padding-left:22px} .legal li{margin-bottom:6px}
.legal .back{display:inline-block;margin-bottom:20px;font-weight:600}
.legal .callout{background:var(--grad-soft);border:1px solid var(--border-2);
  border-radius:12px;padding:16px 18px;margin:18px 0}