:root{--bg:#f4f6f8;--card:#fff;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--accent:#2563eb;--danger:#b91c1c;--radius:18px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}header{height:66px;background:#111827;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1180px)/2));position:sticky;top:0;z-index:10}header b{font-size:18px}header .sub{display:block;font-size:11px;color:#9ca3af}.logout{color:#d1d5db;text-decoration:none}.container{max-width:1180px;margin:auto;padding:28px 18px 60px}.hero,.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.hero{margin-bottom:22px}h1{font-size:30px;margin:0}h2{font-size:20px;margin:0}h3{font-size:14px;margin:20px 0 8px}h3 span{font-weight:400;color:var(--muted)}p{margin:4px 0}.muted,.section-head p{color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:14px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:0 1px 2px #00000008}.stat{display:flex;flex-direction:column;min-height:145px}.stat>span{color:var(--muted);font-size:13px}.stat strong{font-size:34px;margin-top:10px;letter-spacing:-1px}.stat strong small{font-size:24px}.stat em{font-style:normal;color:var(--muted);margin-top:2px}.stat>small{margin-top:auto;color:var(--muted)}.grid2{display:grid;grid-template-columns:1.45fr 1fr;gap:14px;margin-bottom:14px}.chart-wrap{height:300px;margin-top:12px}.primary,.button{border:0;border-radius:12px;padding:11px 16px;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}.primary{background:var(--accent);color:#fff}.button{background:#eef2f7;color:var(--ink)}.big{padding:13px 19px}select,input,textarea{width:100%;border:1px solid #d1d5db;border-radius:11px;padding:11px 12px;background:#fff;color:var(--ink);font:inherit}label{font-size:13px;font-weight:650;display:flex;flex-direction:column;gap:6px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.triple{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.table-wrap{overflow:auto;margin:14px -18px -18px}table{width:100%;border-collapse:collapse;white-space:nowrap}th,td{text-align:left;padding:12px 18px;border-top:1px solid var(--line);font-size:13px}th{color:var(--muted);font-weight:600;background:#fafafa}.danger-link{border:0;background:none;color:var(--danger);cursor:pointer}.empty{text-align:center;color:var(--muted);padding:30px}.modal{position:fixed;inset:0;background:#111827aa;display:none;align-items:center;justify-content:center;padding:18px;z-index:20}.modal.open{display:flex}.modal-card{background:#fff;border-radius:20px;width:min(620px,100%);max-height:94vh;overflow:auto;padding:22px;position:relative}.close{position:absolute;right:14px;top:10px;border:0;background:none;font-size:28px;cursor:pointer}.measurement-form{display:flex;flex-direction:column;gap:12px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}.login-body{min-height:100vh;display:grid;place-items:center;padding:20px;background:#eef2f7}.login-card{width:min(390px,100%);background:#fff;padding:32px;border-radius:22px;border:1px solid var(--line);box-shadow:0 15px 45px #11182712}.brandmark{font-size:34px}.login-card h1{font-size:25px}.stack{display:flex;flex-direction:column;gap:14px;margin-top:22px}.alert{padding:10px 12px;border-radius:10px;margin-top:14px}.error{background:#fef2f2;color:#991b1b}@media(max-width:850px){.cards{grid-template-columns:1fr 1fr}.grid2{grid-template-columns:1fr}.hero{align-items:flex-end}}@media(max-width:560px){header{padding:0 16px}.container{padding:20px 12px 50px}.hero{align-items:stretch;flex-direction:column}.hero .primary{width:100%}.cards{grid-template-columns:1fr 1fr;gap:8px}.card{padding:14px;border-radius:15px}.stat{min-height:125px}.stat strong{font-size:28px}.stat strong small{font-size:20px}.triple{gap:6px}.triple input{padding:12px 7px;font-size:17px}.form-grid{grid-template-columns:1fr}.chart-wrap{height:260px}.section-head{align-items:flex-end}.table-wrap{margin:12px -14px -14px}.modal{padding:8px;align-items:flex-end}.modal-card{border-radius:20px 20px 0 0;max-height:96vh}.modal-actions{position:sticky;bottom:-22px;background:#fff;padding:12px 0 22px}.modal-actions .primary{flex:1}}
.topnav{display:flex;gap:10px;align-items:center}.settings-card{max-width:620px;margin:0 auto}.alert.success{background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}.settings-card code{word-break:break-word}@media(max-width:560px){.topnav{gap:6px}.topnav .logout{padding:8px 9px;font-size:13px}}

/* v1.2 - navigation and desktop UI refinements */
.topnav{display:flex;align-items:center;gap:12px;flex-shrink:0}
.topnav .logout{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:8px 12px;border-radius:10px;color:#e5e7eb;text-decoration:none;white-space:nowrap;transition:background-color .15s ease,color .15s ease}
.topnav .logout:hover,.topnav .logout:focus-visible{background:#ffffff14;color:#fff;outline:none}
header>div:first-child{min-width:0;margin-right:18px}
@media(min-width:561px){.topnav .logout+.logout{margin-left:2px}}
@media(max-width:560px){header{gap:8px}.topnav{gap:6px}.topnav .logout{min-height:36px;padding:7px 8px;font-size:13px}.topnav .logout+.logout{margin-left:0}}