:root{color-scheme:dark;font-family:Inter,Segoe UI,Arial,sans-serif;background:#08111b;color:#e9eff6;font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 90% 0%,#123f4938,transparent 55%),#08111b}.shell{max-width:1120px;margin:auto;padding:0 40px}header,footer{display:flex;justify-content:space-between;align-items:center;padding:28px 0;border-bottom:1px solid #25313d}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#e9eff6;letter-spacing:2px;font-size:15px}.brand b{font-weight:400;color:#78ddc9}.mark{display:grid;place-items:center;width:36px;height:40px;background:#76dfc7;color:#091b21;clip-path:polygon(0 0,100% 0,100% 75%,50% 100%,0 75%);font-weight:800}.preview,.badge{font-size:12px;border:1px solid #34414d;border-radius:30px;padding:7px 12px;color:#b2c2ce}.intro{padding:70px 0 44px;max-width:750px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:#7d9caa}h1{font-size:clamp(36px,5vw,62px);line-height:1.08;font-weight:550;letter-spacing:-2.5px;margin:24px 0}h1 em{font-style:normal;color:#79dfca}h2{font-size:24px;letter-spacing:-.6px;font-weight:550;margin:12px 0 18px}p{color:#a4b7c7;font-size:15px;line-height:1.7;margin:12px 0}.intro>p{font-size:18px;max-width:600px}.facts{display:flex;flex-wrap:wrap;gap:22px;padding-top:18px;font-size:12px;color:#b4c6d2}.facts span:before{content:'•';color:#79dfca;margin-right:8px}.panel{background:#101d29;border:1px solid #2a3947;padding:30px;border-radius:16px;margin-bottom:22px}#authentication{max-width:560px}.grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:22px}.grid>.panel{margin-bottom:0}.account-heading{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:12px 0 24px}#email{overflow-wrap:anywhere}label{display:block;font-size:12px;color:#b7c9d7;margin:15px 0}input,select{display:block;width:100%;border:1px solid #394957;border-radius:7px;background:#08131d;color:#edf5f8;padding:13px;font:inherit;font-size:15px;margin-top:8px;min-width:0}input:focus,select:focus,button:focus-visible,summary:focus-visible{outline:2px solid #7ee6ce;outline-offset:3px}button{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#85e5d0;border:1px solid #85e5d0;border-radius:7px;padding:13px 17px;color:#092229;font:inherit;font-size:13px;font-weight:650;cursor:pointer;margin-top:18px}form>button{width:100%}button:hover{filter:brightness(1.08)}button:disabled{opacity:.4;cursor:not-allowed}.secondary{background:transparent;color:#cddde5;border-color:#415665}.text-button{background:transparent;border:none;color:#88cbbd;padding-left:0;font-weight:400}.pair{display:grid;grid-template-columns:1fr 1fr;gap:16px}.small{font-size:12px;color:#8fa8b9}.devices{margin-top:22px}.device-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 0;border-top:1px solid #2a3947}.device-row button{margin:0}.device-row small{display:block;color:#8fa8b9;margin-top:6px}.notice{display:flex;flex-direction:column;border-left:2px solid #637789;padding:3px 0 3px 18px;margin:32px 0 50px;font-size:13px}.notice p{font-size:12px;max-width:850px;margin-bottom:0}details{border-top:1px solid #34424f;margin-top:26px;padding-top:20px}summary{cursor:pointer;font-size:13px;color:#a8c7d5}footer{border-top:1px solid #25313d;border-bottom:none;font-size:12px;color:#6f899b}a{color:#90cbbb}#message:not(:empty){border:1px solid #789587;background:#142c28;color:#d3f5e6;padding:16px;border-radius:8px;margin-bottom:24px}#message.error{border-color:#ad796f;background:#352021;color:#ffc8bd}[hidden]{display:none!important}@media(max-width:700px){.shell{padding:0 20px}.grid{grid-template-columns:1fr}.intro{padding-top:42px}header{gap:12px}.preview{font-size:10px}.panel{padding:22px}.account-heading{align-items:flex-start;flex-wrap:wrap}footer{align-items:flex-start;gap:20px;line-height:1.6}.pair{grid-template-columns:1fr}h1{letter-spacing:-1px}}

/* Sentinel visual identity — desktop companion */
.logo{width:44px;height:44px;flex:none}.brand{font-weight:750;letter-spacing:1px}.shell{max-width:1200px}body{background:radial-gradient(ellipse at 85% 10%,#224c6740,transparent 48%),#0a121e}.intro{position:relative;max-width:none;padding-right:28%}.intro:after{content:'';position:absolute;right:2%;top:55px;width:200px;height:200px;border:1px solid #35566c;border-radius:50%;background:repeating-linear-gradient(0deg,transparent 0 39px,#35566c60 40px 41px),repeating-linear-gradient(90deg,transparent 0 39px,#35566c60 40px 41px);box-shadow:0 0 85px #79e6cc0c;transform:rotate(-18deg);pointer-events:none}.panel{background:linear-gradient(145deg,#15263a,#101c2c);box-shadow:0 18px 50px #0000001c;border-color:#2b4054;border-radius:18px}button{min-height:46px;transition:background .15s,box-shadow .15s}button:hover:not(:disabled){box-shadow:0 0 22px #79e6cc20}input,select{min-height:46px}footer{gap:24px;flex-wrap:wrap}@media(max-width:800px){.intro{padding-right:0}.intro:after{display:none}}@media(prefers-reduced-motion:reduce){button{transition:none}}