@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Noto+Sans+JP:wght@300;400;500;700;900&display=swap";:root{--primary-hue:210;--primary:hsl(var(--primary-hue), 100%, 50%);--primary-light:hsl(var(--primary-hue), 100%, 60%);--primary-dark:hsl(var(--primary-hue), 100%, 40%);--bg-color:#f2f2f7;--surface-color:#fff;--text-main:#1c1c1e;--text-muted:#8e8e93;--border-color:#e5e5ea;--shadow-sm:0 1px 3px #0000000d;--shadow-md:0 4px 12px #00000014;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-full:9999px;--bottom-nav-height:80px}@media (prefers-color-scheme:dark){:root{--bg-color:#000;--surface-color:#1c1c1e;--text-main:#fff;--text-muted:#98989d;--border-color:#38383a;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 12px #0006}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}html,body{background-color:var(--bg-color);color:var(--text-main);overscroll-behavior-y:none;-webkit-font-smoothing:antialiased;width:100%;height:100%;font-family:Plus Jakarta Sans,Noto Sans JP,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}#root{flex-direction:column;width:100%;height:100%;display:flex}.app-container{padding-bottom:var(--bottom-nav-height);flex-direction:column;flex:1;display:flex;overflow-y:auto}.page-content{width:100%;max-width:600px;margin:0 auto;padding:20px}.surface-card{background-color:var(--surface-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin-bottom:16px;padding:20px}.text-title{letter-spacing:-.02em;margin-top:16px;margin-bottom:40px;font-family:Outfit,Plus Jakarta Sans,Noto Sans JP,sans-serif;font-size:36px;font-weight:800}.text-subtitle{margin-bottom:12px;font-size:18px;font-weight:600}.text-caption{color:var(--text-muted);font-size:13px}.flex-row{flex-direction:row;display:flex}.flex-col{flex-direction:column;display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-2{gap:8px}.gap-4{gap:16px}.text-center{text-align:center}.btn-primary{background-color:var(--primary);color:#fff;border-radius:var(--radius-full);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;width:100%;padding:16px 24px;font-size:18px;font-weight:600;transition:opacity .2s,transform .1s;display:flex}.btn-primary:active{opacity:.8;transform:scale(.98)}.btn-secondary{background-color:var(--surface-color);color:var(--primary);border:1px solid var(--border-color);border-radius:var(--radius-full);cursor:pointer;justify-content:center;align-items:center;gap:8px;width:100%;padding:16px 24px;font-size:18px;font-weight:600;transition:opacity .2s,transform .1s;display:flex}.btn-secondary:active{background-color:var(--bg-color);transform:scale(.98)}.btn-icon{color:var(--text-main);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:8px;display:flex}.btn-icon:active{background-color:#8e8e9333}.btn-start-walking{background:linear-gradient(135deg, var(--primary-light), var(--primary));color:#fff;width:200px;height:200px;box-shadow:var(--shadow-md), 0 0 40px #007aff66;cursor:pointer;border:none;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:8px;margin:40px auto;font-size:24px;font-weight:700;transition:transform .2s,box-shadow .2s;display:flex}.btn-start-walking:active{box-shadow:var(--shadow-sm), 0 0 20px #007aff33;transform:scale(.95)}.bottom-nav{height:var(--bottom-nav-height);background-color:var(--surface-color);border-top:1px solid var(--border-color);padding-bottom:env(safe-area-inset-bottom,0px);z-index:1000;justify-content:space-around;align-items:center;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-item{color:var(--text-muted);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:4px;height:100%;font-size:11px;text-decoration:none;display:flex}.nav-item.active{color:var(--primary)}