:root{color-scheme:dark;--bg:#0b0e10;--panel:#15191d;--ink:#f5f7f8;--muted:#98a2ac;--primary:#ff5f48;--line:#2b3238}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}.shell{min-height:100vh;display:grid;grid-template-columns:240px 1fr}.sidebar{background:#101316;color:#c9d0d6;padding:28px 20px;border-right:1px solid #20262b}.brand{font-size:22px;font-weight:800;letter-spacing:-.04em;color:#fff;margin-bottom:36px}.nav{display:grid;grid-gap:8px;gap:8px}.nav a{display:block;padding:11px 13px;border-radius:9px;color:#8f9aa4;transition:background .15s ease,color .15s ease}.nav a.active,.nav a:hover{color:#fff;background:#252b30;box-shadow:inset 3px 0 0 var(--primary)}.main{padding:34px clamp(20px,5vw,60px);max-width:1450px;width:100%}.topbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}h1{margin:0;font-size:30px;letter-spacing:-.04em}h2{color:var(--ink)}.subtitle{color:var(--muted);margin:7px 0 0}.button{border:0;border-radius:8px;background:var(--primary);color:#140d0b;padding:11px 16px;font-weight:800;cursor:pointer;transition:filter .15s ease,transform .15s ease}.button:hover{filter:brightness(1.08);transform:translateY(-1px)}.button:disabled{opacity:.6;cursor:not-allowed;transform:none}.button.secondary{background:#282e34;color:#ff806e}.register-button{display:block;margin-top:14px;text-align:center}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:14px;gap:14px}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 10px 30px rgba(0,0,0,.12)}.metric-label{color:var(--muted);font-size:14px}.metric-card{position:relative;overflow:hidden}.metric-card:before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:#62d28b}.metric-sleep:before{background:#77adff}.metric-strain:before{background:#ff705b}.metric-workout:before{background:#ffb454}.metric-value{font-size:30px;font-weight:800;margin-top:12px;letter-spacing:-.03em}.metric-note{color:#62d28b;font-size:13px;margin-top:6px}.metric-sleep .metric-note{color:#77adff}.metric-strain .metric-note{color:#ff806e}.metric-workout .metric-note{color:#ffb454}.content-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);grid-gap:14px;gap:14px;margin-top:14px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.section-title{margin:0;font-size:17px}.range-switch{display:flex;gap:4px;padding:3px;border-radius:7px;background:#20262b}.range-switch button{border:0;border-radius:5px;padding:5px 9px;color:#929ca5;background:transparent;font-size:12px;cursor:pointer}.range-switch button.active{color:#fff;background:#3a4249}.chart-placeholder,.trend-chart{height:280px}.trend-chart{width:100%;min-width:0}.trend-data{margin-top:14px}.trend-data .data-table{min-width:620px}.chart-placeholder{display:flex;align-items:center;justify-content:center;border:1px dashed #384149;border-radius:9px;color:var(--muted);background:#111518}.status{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:13px 0}.status:last-child{border-bottom:0}.pill{border-radius:999px;font-size:12px;padding:5px 9px;background:#183526;color:#73dfa0}.pill-muted{background:#30251f;color:#ffb06a}.footer-note{color:var(--muted);font-size:12px;margin-top:24px}.alert{color:#ff9b8e}.action-link{display:inline-block;margin-top:18px}.table-wrap{overflow-x:auto}.data-table{width:100%;border-collapse:collapse;min-width:560px}.data-table th{text-align:left;color:var(--muted);font-size:13px;font-weight:700;padding:11px 10px}.data-table td,.data-table th{border-bottom:1px solid var(--line);white-space:nowrap}.data-table td{padding:13px 10px}.data-table tbody tr:last-child td{border-bottom:0}.empty-state{color:var(--muted);text-align:center;padding:48px 20px}.policy-page{max-width:900px;margin:0 auto}.policy-card{padding:clamp(22px,4vw,48px)}.policy-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px}.policy-brand{color:var(--primary);font-size:14px;font-weight:800;margin:0 0 8px}.policy-intro{color:#c6cdd3;line-height:1.8;padding:16px 18px;border-left:4px solid var(--primary);background:#1b2024;border-radius:0 8px 8px 0}.policy-section{margin-top:28px}.policy-section h2{font-size:18px;margin:0 0 10px}.policy-section p{color:#aeb7bf;line-height:1.85;margin:8px 0}.policy-section ul{color:#aeb7bf;line-height:1.9;margin:8px 0;padding-left:24px}.policy-placeholder{color:#ffb06a;font-weight:600}input,select{background:#101417;color:var(--ink);border-color:#374049!important}input::placeholder{color:#77828c}.card a:not(.button){color:#ff806e!important}.card table td,.card table th{border-color:var(--line)!important;color:var(--ink)}p[style*="#b42318"]{color:#ff9b8e!important}@media (max-width:520px){.policy-header{flex-direction:column}}@media (max-width:900px){.shell{grid-template-columns:1fr}.sidebar{padding:16px}.brand{margin-bottom:14px}.nav{display:flex;overflow:auto}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.content-grid{grid-template-columns:1fr}}@media (max-width:520px){.cards{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}}