:root{font-family:Inter,system-ui,sans-serif;color:#173331;background:#f4f8f6;line-height:1.5}*{box-sizing:border-box}body{margin:0}main{max-width:680px;margin:auto;padding:18px 16px 40px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.brand{color:#0d6b67;text-decoration:none;font-weight:800;font-size:22px;display:flex;gap:8px;align-items:center}.logo,.hero-symbol{color:#0d6b67}.logo{font-size:29px}.tagline{font-size:13px;color:#647772}.card{background:#fff;border:1px solid #dce9e5;border-radius:20px;padding:22px;margin-bottom:16px;box-shadow:0 8px 28px #0b4d3c0b}.center{text-align:center}.hero-symbol{font-size:80px;line-height:1;margin:15px}h1{font-size:25px;line-height:1.15;margin:12px 0}p{color:#5b6e6a}button{border:0;border-radius:13px;background:#0d6b67;color:#fff;padding:15px 18px;font-weight:750;font-size:16px;cursor:pointer;min-height:48px}.secondary,.link{background:#e4f0ed;color:#0d6b67}.link{border:0;background:transparent;padding:8px}.actions{display:grid;gap:10px;margin-top:18px}.row{display:flex;justify-content:space-between;gap:12px;align-items:center}.pill{background:#e0f2ed;color:#0d6b67;padding:6px 10px;border-radius:30px;font-size:13px;font-weight:700}.url{word-break:break-all;font-family:ui-monospace;font-size:13px;color:#1a5e57;background:#f1f7f4;padding:10px;border-radius:8px}input,select{width:100%;padding:13px;border:1px solid #cadbd6;border-radius:10px;margin:5px 0 8px;font:inherit;background:#fff}label{font-size:13px;color:#5b6e6a}.alert{padding:12px 14px;border-radius:12px;margin-bottom:14px}.error{background:#fdecea;color:#a32b20}.success{background:#e1f5e8;color:#176b3f}.notice{padding:14px;background:#fff8dc;border-radius:12px;margin-top:14px}.stack{display:grid;gap:0}small{color:#6a7c77}.install{text-align:center;margin:12px}footer{text-align:center;color:#778783;font-size:12px;margin-top:28px}details{margin-top:18px}.device-list>div{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #eef3f1;padding:6px 0}details{margin:18px 0}summary{cursor:pointer;color:#0d6b67;font-weight:700}.qr{width:180px;height:180px;display:block;margin:0 auto 10px}.device-list{margin-top:10px;border-top:1px solid #e3ece9;padding-top:8px}.device-row{display:flex;justify-content:space-between;gap:10px;align-items:center;border-bottom:1px solid #eef3f1;padding:10px 0}.device-row small{display:block}.danger{background:#c9362b;color:#fff}.top-action{width:100%;margin-bottom:18px}.small-button{min-height:38px;padding:9px 12px;margin-top:10px}.modal-backdrop{position:fixed;inset:0;background:#123c3799;display:grid;place-items:center;padding:18px;z-index:10}.modal{width:min(100%,420px);text-align:center}.modal button{width:100%;margin-top:10px}@media(min-width:600px){main{padding-top:32px}.actions{grid-template-columns:1fr 1fr}}