:root{--bg:#f3f6f9;--card:#fff;--ink:#17324d;--muted:#64748b;--blue:#1d6fa5;--green:#2e8b57;--amber:#b97703;--border:#d8e2ea;--danger:#b42318}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#243b53;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}button,input,textarea,select{font:inherit}button{min-height:44px;border:0;border-radius:11px;padding:10px 14px;font-weight:700;background:#e7eef5;color:var(--ink)}button.primary{background:var(--blue);color:#fff}button.success{background:var(--green);color:#fff}button.danger{background:#fee4e2;color:var(--danger)}button:disabled{opacity:.55}.app{max-width:820px;margin:0 auto;padding:14px 14px 94px}.top{display:flex;align-items:flex-start;gap:10px;margin:5px 0 14px}.top .grow{flex:1;min-width:0}.brand{font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.4px}.subtitle,.muted{color:var(--muted);font-size:13px}.sync{font-size:12px;color:var(--muted);margin-top:3px}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:14px;margin:10px 0}.hero{background:#eaf7f1;border-color:#c8e8d7}.hero h2{margin:0 0 4px;color:#1d6b43}.section-title{font-size:13px;font-weight:800;color:var(--blue);text-transform:uppercase;letter-spacing:.4px;margin:16px 2px 6px}.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.metric{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:12px}.metric .v{font-size:22px;font-weight:800;color:var(--ink)}.metric .k{font-size:12px;color:var(--muted)}.session{border-left:4px solid var(--blue)}.session.swim{border-left-color:#0f8b8d}.session.bike{border-left-color:#7c4dcc}.session.run{border-left-color:#d98e04}.session h3{margin:0 0 3px;font-size:16px}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.row.between{justify-content:space-between}.pill{display:inline-block;border-radius:999px;padding:4px 8px;background:#eef4f8;color:#36556e;font-size:12px;font-weight:700}.tabs{position:fixed;left:0;right:0;bottom:0;background:rgba(255,255,255,.96);border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(5,1fr);padding:7px max(8px,env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));z-index:5}.tab{background:transparent;min-height:52px;padding:4px 2px;border-radius:10px;font-size:11px;font-weight:700;color:var(--muted)}.tab.active{background:#e7f0fa;color:var(--blue)}.panel{display:none}.panel.active{display:block}.field{margin:9px 0}.field label{display:block;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:4px}.field input,.field textarea{width:100%;border:1px solid #b8c8d6;border-radius:10px;padding:11px 12px;background:#fff;color:#152a3b;min-height:44px;font-size:16px}.field textarea{min-height:100px;resize:vertical}.login{max-width:640px;margin:20px auto}.login .logo{width:76px;height:76px;border-radius:18px}.error{color:var(--danger);font-weight:700;font-size:13px}.ok{color:var(--green);font-weight:700;font-size:13px}.answer{white-space:pre-wrap;line-height:1.45}.dategroup{margin-top:14px}.datehead{font-size:14px;font-weight:800;color:var(--ink);margin:4px 2px}.activity h3,.goal h3{margin:0 0 4px}.empty{text-align:center;color:var(--muted);padding:25px 10px}.overlay{position:fixed;inset:0;background:rgba(10,25,40,.45);display:none;align-items:flex-end;z-index:20}.overlay.show{display:flex}.sheet{background:#fff;border-radius:20px 20px 0 0;padding:18px;width:100%;max-height:82%;overflow:auto}.sheet h2{margin-top:0}.tiny{font-size:11px;color:var(--muted)}
@media(min-width:700px){.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.tabs{left:50%;right:auto;transform:translateX(-50%);width:780px;border:1px solid var(--border);border-bottom:0;border-radius:16px 16px 0 0}.sheet{max-width:720px;margin:0 auto}}