#root{min-height:100vh}body{margin:0;min-height:100vh;font-family:Inter,system-ui,sans-serif;background:linear-gradient(135deg,#0f172a,#1e1b4b 35%,#312e81 60%,#4c1d95);color:#f8fafc}.home-container{min-height:100vh;display:flex;align-items:center;justify-content:center}.speed-card{width:100%;max-width:420px;padding:32px;border-radius:24px;background:#0f172ad9;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);text-align:center;box-shadow:0 40px 80px #0009,inset 0 0 0 1px #ffffff0f}.speed-card button{font-family:inherit}.actions{display:flex;justify-content:space-between;align-items:center;margin-top:24px}.start-btn{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;padding:12px 24px;border-radius:14px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 8px 20px #6366f166}.start-btn:hover{transform:translateY(-1px);box-shadow:0 12px 28px #6366f18c}.start-btn:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}.secondary-btn{background:#ffffff14;color:#f8fafc;border:1px solid rgba(255,255,255,.15);padding:10px 16px;border-radius:12px;font-size:13px;font-weight:500;cursor:pointer;transition:all .2s ease}.secondary-btn:hover{background:#ffffff24}.improve-link{color:#a78bfa;font-size:13px;font-weight:500;text-decoration:none;transition:color .2s ease}.improve-link:hover{color:#c4b5fd;text-decoration:underline}.meter-container{margin:28px 0 10px}.meter{position:relative;width:220px;height:110px;margin:0 auto;border-top-left-radius:220px;border-top-right-radius:220px;background:linear-gradient(to right,#ef4444,#facc15,#22c55e);overflow:hidden}.meter:after{content:"";position:absolute;inset:12px;background:#0f172a;border-top-left-radius:200px;border-top-right-radius:200px;z-index:1}.needle{position:absolute;bottom:0;left:50%;width:4px;height:90px;background:#fff;transform-origin:bottom center;transition:transform .8s ease-out;z-index:2}.meter-labels{display:flex;justify-content:space-between;margin-top:8px;font-size:12px;opacity:.7}.usage-box{margin-top:24px;text-align:left}.usage-box h3{font-size:14px;margin-bottom:12px;color:#e5e7eb}.usage-box ul{list-style:none;padding:0;margin:0}.usage-box li{display:flex;justify-content:space-between;padding:8px 0;font-size:13px;border-bottom:1px solid rgba(255,255,255,.06)}.usage-box li:last-child{border-bottom:none}.history-overlay{position:fixed;inset:0;background:#0f172ab3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:9999}.history-modal{width:90%;max-width:460px;background:#0f172a;padding:24px;border-radius:20px;color:#f8fafc;box-shadow:0 40px 80px #0009;animation:scaleIn .25s ease}@keyframes scaleIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.history-header{display:flex;justify-content:space-between;align-items:center}.close-btn{background:none;border:none;color:#cbd5f5;font-size:20px;cursor:pointer}.speed-trend{margin:20px 0 28px;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.08)}.speed-trend h3{font-size:14px;margin-bottom:12px;color:#e5e7eb}.bars{display:flex;gap:12px;height:120px;align-items:flex-end}.bar-wrapper{width:28px;text-align:center;font-size:11px;color:#c7d2fe}.bar{width:100%;background:linear-gradient(#22c55e,#6366f1);border-radius:6px}.history-list{list-style:none;padding:0;margin-top:16px}.history-list li{display:grid;grid-template-columns:1fr 1fr 1fr;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:13px}.empty{text-align:center;color:#94a3b8}.history-columns{display:grid;grid-template-columns:1fr 1fr 1fr;font-size:11px;opacity:.6;margin:8px 0 6px}.history-list li{opacity:.85}.history-list li.latest{opacity:1;font-weight:600}.trend-graph{margin:16px 0}.trend-line{stroke-dasharray:500;stroke-dashoffset:500;animation:drawLine .8s ease forwards}@keyframes drawLine{to{stroke-dashoffset:0}}.trend-dot{fill:#a78bfa;opacity:0;animation:fadeDot .4s ease forwards;animation-delay:.6s}@keyframes fadeDot{to{opacity:1}}.session-insight{font-size:13px;color:#c7d2fe;margin:10px 0 14px;opacity:.85}.improve-page{min-height:100vh;padding:32px;max-width:720px;margin:0 auto}.improve-page h1{margin-bottom:24px}.improve-card{background:#0f172abf;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:18px;padding:20px;margin-bottom:20px;box-shadow:0 20px 40px #0006,inset 0 0 0 1px #ffffff0f}.improve-card h3{margin-bottom:12px;font-size:16px}.option-row{display:flex;gap:10px;flex-wrap:wrap}.option-row button{background:#ffffff14;border:1px solid rgba(255,255,255,.15);color:#f8fafc;padding:8px 14px;border-radius:10px;cursor:pointer;transition:all .2s ease}.option-row button:hover{background:#ffffff29}.info-box{margin-top:14px;font-size:14px;opacity:.9}.back-link{display:inline-block;margin-top:24px;color:#a78bfa;text-decoration:none}.insight-text{font-size:14px;line-height:1.6;opacity:.9}