:root{--bg:#f4f6f5;--ink:#173830;--muted:#62756e;--accent:#137c5e;--border:#dde6e1;--card:#fff}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,Segoe UI,sans-serif}h1,h2,h3,p{margin-top:0}h1{font-size:32px;letter-spacing:-1px;margin-bottom:8px}h2{font-size:21px;margin-bottom:4px}h3{font-size:18px}a{color:inherit;text-decoration:none}header{padding:20px 4%;background:#fff;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-weight:750;font-size:19px}.brand-mark{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--accent);color:#fff;font-size:23px;font-weight:800}nav{display:flex;align-items:center;gap:24px;font-size:14px}.dashboard{max-width:1250px;margin:auto;padding:40px 28px}.title-row,.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:750;color:var(--accent);margin-bottom:12px}.muted{color:var(--muted)}.small{font-size:12px}.mode{background:#e2eee7;border:1px solid #c9ded2;border-radius:20px;padding:8px 14px;font-size:12px;font-weight:650}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:20px 0 12px}.metric{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:22px}.metric strong{display:block;font-size:32px;margin-top:5px}.metric span{color:var(--muted);font-size:13px}section{margin-top:32px;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px}.section-heading{margin-bottom:24px}.section-heading p{margin-bottom:0;font-size:13px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.session-card{border:1px solid var(--border);border-radius:12px;padding:20px}.session-card h3{margin-bottom:6px}.session-actions{display:flex;flex-wrap:wrap;gap:7px;margin-top:18px}.session-actions button{font-size:12px;padding:7px 10px}.badge{display:inline-block;font-size:11px;border-radius:12px;padding:3px 9px;background:#edf0ef;color:#52665e}.connected,.sent{color:#136b48;background:#dcf3e5}.failed,.error,.disconnected,.uncertain{color:#9a482b;background:#fcebe1}.queued,.starting,.waiting_qr{color:#826414;background:#fff3cf}button{background:var(--accent);color:white;border:1px solid transparent;border-radius:8px;padding:10px 16px;font:600 13px system-ui;cursor:pointer}button:hover{filter:brightness(.94)}button:disabled{opacity:.5;cursor:wait}.ghost{background:white;border-color:var(--border);color:var(--ink)}label{display:block;font-size:13px;font-weight:600}input,select{display:block;width:100%;margin-top:6px;padding:11px;border:1px solid #ccd8d1;border-radius:7px;background:white;font:14px system-ui;color:var(--ink)}input:focus,select:focus,button:focus-visible{outline:2px solid #73b99c;outline-offset:2px}.inline-form{display:flex;align-items:end;gap:14px;flex-wrap:wrap;margin-bottom:22px;padding:18px;background:var(--bg);border-radius:10px}.inline-form label{flex:1;min-width:140px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left;white-space:nowrap}td,th{padding:14px 12px;border-bottom:1px solid #edf1ef}th{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);background:#f8faf9}.empty{padding:26px;text-align:center;color:var(--muted);border:1px dashed var(--border);border-radius:10px;grid-column:1/-1}.login-page{display:grid;min-height:100vh;place-items:center}.login-card{width:min(450px,calc(100% - 32px));background:white;border:1px solid var(--border);border-radius:20px;padding:38px}.login-card .brand-mark{margin-bottom:25px}.login-card h1{font-size:26px}.login-card label{margin-top:20px}.login-card button{margin-top:24px;width:100%}#feedback:not(:empty){padding:12px 16px;background:#e6f0eb;border-radius:8px;overflow-wrap:anywhere}#feedback.error{background:#fcebe1;color:#9a482b}.qr-panel{text-align:center;padding:24px;border:1px solid var(--border);margin-top:20px;border-radius:10px}.qr-panel img{display:block;width:250px;max-width:100%;margin:20px auto}#key-panel{background:#e6f2ea;border-radius:10px;padding:20px;margin-bottom:20px}code{display:block;white-space:normal;overflow-wrap:anywhere;padding:12px;background:white;border-radius:8px;margin-bottom:12px}.pagination{display:flex;justify-content:flex-end;align-items:center;gap:12px;margin-top:16px;font-size:12px}footer{padding:28px 0;color:var(--muted);font-size:12px}[hidden]{display:none!important}@media(max-width:850px){nav{gap:12px;flex-wrap:wrap}.cards{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:1fr 1fr}.title-row{align-items:flex-start;flex-direction:column}}@media(max-width:580px){header{align-items:flex-start;flex-direction:column;padding:16px}.dashboard{padding:24px 16px}.cards{grid-template-columns:1fr}section{padding:18px}.section-heading{align-items:flex-start;flex-direction:column}.metrics{gap:10px}.metric{padding:16px}h1{font-size:27px}}