:root{
  color-scheme:dark;
  --bg:#041d2b;
  --surface:#0b3042;
  --surface2:#113c4f;
  --ink:#f5fbff;
  --muted:#9db7c5;
  --cyan:#25c9e2;
  --cyan2:#35b6f2;
  --accent:#00d4e8;
  --ok:#3ddc97;
  --warn:#ffb020;
  --danger:#ff6b6b;
  --line:rgba(125,211,252,.18);
  --shadow:0 18px 50px rgba(0,0,0,.35);
  --radius:18px;
  --font:ui-sans-serif,system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:var(--font);background:
  radial-gradient(circle at 18% -5%,#0d4b61 0,transparent 42%),
  radial-gradient(circle at 90% 10%,#0a3a55 0,transparent 35%),
  linear-gradient(160deg,#041d2b,#062637 55%,#031821);
color:var(--ink)}
button,input,select{font:inherit}
button{cursor:pointer}
a{color:var(--cyan2)}
.hidden{display:none!important}
.ambient{position:fixed;inset:auto;pointer-events:none;filter:blur(60px);opacity:.45;z-index:0}
.ambient-a{width:280px;height:280px;left:-40px;top:10%;background:#1aa6c4}
.ambient-b{width:320px;height:320px;right:-60px;bottom:5%;background:#0d6f8f}

/* Auth */
.auth-layout{position:relative;z-index:1;min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr;gap:2.5rem;align-items:center;padding:3rem clamp(1.2rem,4vw,4rem);max-width:1180px;margin:0 auto}
.auth-brand .brand-row{display:flex;align-items:center;gap:.85rem;margin-bottom:1.2rem}
.auth-brand .brand-mark{width:64px;height:64px;border-radius:18px;background:linear-gradient(135deg,var(--cyan),#0a7ea4);display:grid;place-items:center;box-shadow:var(--shadow);flex:0 0 auto}
.auth-brand .brand-mark span{width:28px;height:28px;border:3px solid #fff;border-radius:50%;border-top-color:transparent;transform:rotate(25deg)}
.auth-brand .hospital-mark{height:64px;width:auto;max-width:220px;object-fit:contain;display:block;background:transparent;flex:0 0 auto}
.eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);font-size:.78rem;margin:0 0 .6rem}
.auth-brand h1{font-size:clamp(2.6rem,6vw,4.2rem);margin:0 0 .5rem;line-height:1.05}
.lead{color:var(--muted);font-size:1.1rem;margin:0 0 1.4rem;max-width:28rem}
.trust-list{display:flex;flex-wrap:wrap;gap:.55rem}
.trust-list span{border:1px solid var(--line);background:rgba(255,255,255,.03);padding:.35rem .7rem;border-radius:999px;color:var(--muted);font-size:.85rem}
.auth-card{background:rgba(11,48,66,.72);border:1px solid var(--line);border-radius:24px;padding:1.6rem 1.5rem 1.3rem;box-shadow:var(--shadow);backdrop-filter:blur(14px)}
.auth-card h2{margin:0 0 1rem;font-size:1.25rem}
.form-stack{display:grid;gap:.85rem}
.form-stack label{display:grid;gap:.35rem;color:var(--muted);font-size:.9rem}
.form-stack input,.form-stack select,.field input,.field select{
  width:100%;border-radius:12px;border:1px solid var(--line);background:#082636;color:var(--ink);
  padding:.85rem .95rem;outline:none}
.form-stack input:focus,.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(37,201,226,.15)}
.primary{border:0;border-radius:12px;padding:.95rem 1rem;background:linear-gradient(135deg,var(--cyan2),var(--cyan));color:#03202c;font-weight:700}
.primary:hover{filter:brightness(1.05)}
.ghost{border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:10px;padding:.55rem .85rem}
.message{min-height:1.2rem;color:var(--warn);font-size:.9rem;margin:.4rem 0 0}
.privacy-note{color:var(--muted);font-size:.8rem;margin:1rem 0 0;line-height:1.5}

/* App shell */
.app{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:1rem 1.1rem 2.5rem}
.topbar{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;margin-bottom:1rem}
.compact-brand{display:flex;gap:.7rem;align-items:center;text-decoration:none;color:inherit}
.mini-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--cyan),#0a7ea4)}
.brand-copy b{display:block}
.brand-copy small{color:var(--muted)}
.brand-copy em{display:block;font-style:normal;color:var(--muted);font-size:.75rem}
.user-area{display:flex;gap:.55rem;align-items:center;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.8rem;margin-bottom:1rem}
.stat{background:rgba(11,48,66,.75);border:1px solid var(--line);border-radius:16px;padding:1rem}
.stat .k{color:var(--muted);font-size:.82rem}
.stat .v{font-size:1.6rem;font-weight:700;margin-top:.25rem}
.layout{display:grid;grid-template-columns:320px 1fr;gap:1rem;min-height:60vh}
.panel{background:rgba(11,48,66,.72);border:1px solid var(--line);border-radius:18px;padding:1rem;box-shadow:var(--shadow)}
.panel h3{margin:.1rem 0 .8rem;font-size:1rem}
.list{display:grid;gap:.55rem;max-height:70vh;overflow:auto}
.patient-card{border:1px solid var(--line);border-radius:14px;padding:.75rem .85rem;background:rgba(0,0,0,.12);cursor:pointer;text-align:left;color:inherit;width:100%}
.patient-card.active,.patient-card:hover{border-color:rgba(37,201,226,.55);background:rgba(37,201,226,.08)}
.patient-card .row{display:flex;justify-content:space-between;gap:.5rem;align-items:center}
.badge{display:inline-flex;align-items:center;gap:.3rem;border-radius:999px;padding:.15rem .55rem;font-size:.75rem;border:1px solid var(--line)}
.badge.on{color:var(--ok);border-color:rgba(61,220,151,.35);background:rgba(61,220,151,.08)}
.badge.off{color:var(--muted)}
.meta{color:var(--muted);font-size:.8rem;margin-top:.25rem}
.toolbar{display:flex;flex-wrap:wrap;gap:.55rem;align-items:center;margin-bottom:.85rem}
.segmented{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.segmented button{border:0;background:transparent;color:var(--muted);padding:.45rem .8rem}
.segmented button.active{background:rgba(37,201,226,.18);color:var(--ink)}
.vitals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.7rem;margin-bottom:1rem}
.vital{background:rgba(0,0,0,.14);border:1px solid var(--line);border-radius:14px;padding:.8rem}
.vital .label{color:var(--muted);font-size:.8rem}
.vital .value{font-size:1.35rem;font-weight:700;margin-top:.2rem}
.vital .unit{color:var(--muted);font-size:.85rem;font-weight:500}
.chart-box{height:280px;position:relative}
.chart-box canvas{width:100%!important;height:100%!important}
.rehab-bar{height:12px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin:.5rem 0}
.rehab-bar > i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan2),var(--ok));width:0}
.empty{color:var(--muted);padding:2rem 1rem;text-align:center}
.admin-box{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--line)}
.field{display:grid;gap:.35rem;margin-bottom:.7rem;color:var(--muted);font-size:.88rem}
@media(max-width:960px){
  .auth-layout{grid-template-columns:1fr;padding:2rem 1rem}
  .layout{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .vitals{grid-template-columns:repeat(2,minmax(0,1fr))}
}