.screen{max-width:480px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.nav-bar{position:sticky;top:0;z-index:10;padding:18px 20px 12px;background:#f2f2f7d9;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);display:flex;align-items:center;justify-content:space-between}.nav-title{font-size:28px;font-weight:700;letter-spacing:-.3px}.nav-bar--detail{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;column-gap:8px}.nav-bar--detail .nav-back{justify-self:start}.nav-bar--detail .nav-title{justify-self:center;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.nav-bar--detail .icon-btn{justify-self:end}.nav-back{font-size:17px;color:var(--accent);font-weight:500;background:none;border:none;padding:4px 0;display:flex;align-items:center;gap:4px;line-height:1}.nav-back-chevron{font-size:21px;line-height:1;margin-top:-1px}.icon-btn{width:32px;height:32px;border-radius:50%;background:#007aff1f;color:var(--accent);border:none;font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;font-weight:600;flex-shrink:0}.btn-primary{background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);padding:14px 20px;font-size:17px;font-weight:600;width:100%;transition:opacity .15s ease}.btn-primary:active{opacity:.7}.btn-primary:disabled{background:var(--text-secondary);opacity:.5}.btn-secondary{background:#007aff1a;color:var(--accent);border:none;border-radius:var(--radius-sm);padding:14px 20px;font-size:17px;font-weight:600;width:100%}.btn-danger{background:#ff3b301a;color:var(--red);border:none;border-radius:var(--radius-sm);padding:14px 20px;font-size:17px;font-weight:600;width:100%}.btn-danger:disabled{opacity:.5}.card{background:var(--card);border-radius:var(--radius);box-shadow:0 1px 2px #0000000a}.text-field{background:var(--card);border:none;outline:none;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:var(--radius-sm);padding:14px 16px;font-size:17px;font-family:inherit;width:100%;box-sizing:border-box;color:var(--text)}.text-field::placeholder{color:#3c3c4366}.field-group{display:flex;flex-direction:column;background:var(--card);border-radius:var(--radius-sm);overflow:hidden}.field-group .text-field{border-radius:0;background:transparent}.field-group .text-field+.text-field{border-top:.5px solid rgba(60,60,67,.18)}.status-pill{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:100px;font-size:13px;font-weight:600}.status-pill.online{background:#34c75926;color:var(--green)}.status-pill.offline{background:#8e8e9326;color:var(--text-secondary)}.status-dot{width:7px;height:7px;border-radius:50%;background:currentColor}.battery{display:flex;align-items:center;gap:5px;font-size:13px;font-weight:600}.battery--high{color:var(--green)}.battery--mid{color:var(--yellow)}.battery--low{color:var(--red)}.battery--unknown{color:var(--text-secondary)}@keyframes battery-pulse{0%,to{opacity:1}50%{opacity:.4}}.battery--low{animation:battery-pulse 1.4s ease-in-out infinite}.battery-icon{width:24px;height:12px;border:1.5px solid currentColor;border-radius:3px;padding:1.5px;position:relative}.battery-icon:after{content:"";position:absolute;right:-4px;top:50%;transform:translateY(-50%);width:2.5px;height:5px;background:currentColor;border-radius:0 1.5px 1.5px 0}.battery-fill{height:100%;border-radius:1px;background:currentColor;transition:width .5s ease}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;z-index:100;animation:fadeIn .2s ease}.sheet{position:fixed;left:0;right:0;bottom:0;z-index:101;background:var(--bg);border-radius:20px 20px 0 0;max-width:480px;margin:0 auto;padding:10px 20px 32px;animation:slideUp .25s cubic-bezier(.32,.72,0,1);max-height:88vh;overflow-y:auto}.sheet-handle{width:36px;height:5px;background:#3c3c4340;border-radius:100px;margin:6px auto 16px}.sheet-title{font-size:20px;font-weight:700;margin:0 0 16px;text-align:center}.nav-title.small{font-size:17px;font-weight:700;letter-spacing:0}.admin-clear{justify-self:end}.admin-body{padding:18px 20px 32px;display:flex;flex-direction:column;gap:18px}.admin-panel{padding:14px;display:flex;flex-direction:column;gap:10px}.admin-panel .text-field{background:var(--bg)}.admin-code{background:#34c7591f;color:var(--green);border-radius:var(--radius-sm);padding:12px 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20px;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px}.stage-card h2{margin:0;font-size:24px;letter-spacing:0}.stage-card p{margin:0;color:var(--text-secondary);font-size:15px}.auth-screen{justify-content:flex-start;padding:0}.auth-hero{display:flex;flex-direction:column;align-items:center;text-align:center;padding:72px 24px 40px}.auth-logo{width:76px;height:76px;background:var(--accent);border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:38px;margin-bottom:18px;box-shadow:0 6px 24px #007aff47}.auth-title{margin:0 0 6px;font-size:30px;font-weight:700;letter-spacing:-.4px}.auth-subtitle{margin:0;font-size:15px;color:var(--text-secondary)}.auth-form{padding:0 20px 48px;display:flex;flex-direction:column;gap:14px}.auth-msg{text-align:center;margin:0}.segmented-control{background:#7676801f;border-radius:10px;padding:2px;display:grid;grid-template-columns:1fr 1fr;gap:2px}.segmented-control button{min-height:32px;border:none;border-radius:8px;background:transparent;color:var(--text);font-size:14px;font-weight:600}.segmented-control button.active{background:var(--card);box-shadow:0 1px 2px #00000014}.loading-screen{align-items:center;justify-content:center}.spinner{width:24px;height:24px;border-radius:50%;border:2px solid rgba(142,142,147,.22);border-top-color:var(--text-secondary);animation:spin .8s linear infinite}.error-text{margin:0;color:var(--red);font-size:14px;font-weight:500}.success-text{margin:0;color:var(--green);font-size:14px;font-weight:500}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.spinner{width:20px;height:20px;border:2.5px solid rgba(0,122,255,.2);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px;gap:8px}.empty-icon{font-size:56px;margin-bottom:8px}.empty-state h2{margin:0;font-size:22px;font-weight:700}.empty-state p{margin:0 0 20px;color:var(--text-secondary);font-size:15px;max-width:280px}.empty-state .btn-primary{width:auto;padding:14px 28px}.device-list{display:flex;flex-direction:column;gap:12px;padding:8px 20px 100px}.device-card{display:flex;align-items:center;gap:14px;padding:16px;border:none;width:100%;text-align:left;font-size:inherit;color:inherit;cursor:pointer}.device-card:active{background:#00000005}.device-avatar{width:44px;height:44px;border-radius:12px;background:#007aff1a;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}.device-info{flex:1;min-width:0}.device-name{font-size:17px;font-weight:600;margin-bottom:4px;display:flex;align-items:center;gap:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.device-meta{display:flex;align-items:center;gap:10px}.device-chevron{color:var(--text-secondary);font-size:18px}.device-shared-tag{font-size:11px;font-weight:600;color:var(--accent);background:#007aff1a;border-radius:4px;padding:1px 6px;flex-shrink:0;letter-spacing:.2px}.fab{position:fixed;bottom:28px;left:50%;transform:translate(-50%);width:calc(100% - 40px);max-width:440px}.fab-add{position:fixed;bottom:28px;right:24px;width:56px;height:56px;border-radius:50%;border:none;background:var(--accent);color:#fff;font-size:26px;font-weight:300;line-height:1;padding-top:1px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px #007aff59;z-index:20}.fab-add:active{opacity:.8;transform:scale(.95)}.qr-modal{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--bg);border-radius:var(--radius);padding:20px;width:min(90vw,360px);display:flex;flex-direction:column;gap:14px}.qr-region{border-radius:var(--radius-sm);overflow:hidden;height:280px;background:#000;display:flex;align-items:center;justify-content:center}.qr-video{width:100%;height:100%;object-fit:cover}.qr-hint{text-align:center;font-size:14px;color:var(--text-secondary);margin:0}.nav-title.small{font-size:17px;font-weight:600}.icon-btn.danger{background:#ff3b301f;color:var(--red);font-size:20px}.map-screen{position:fixed;top:0;left:50%;transform:translate(-50%);width:100%;height:100%;max-width:480px;overflow:hidden}.map-stage{flex:1;position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:0}.map-container{position:absolute;top:0;right:0;bottom:0;left:0}.google-map{width:100%;height:100%}.user-location-marker{position:relative;width:80px;height:80px;transform:translate(-50%,-50%);pointer-events:none;will-change:transform}.user-location-heading{position:absolute;left:50%;top:50%;width:54px;height:54px;transform:translate(-50%,-50%) rotate(var(--heading));transform-origin:50% 50%;transition:transform .28s cubic-bezier(.22,1,.36,1);background:conic-gradient(from -24deg,rgba(0,122,255,.42) 0deg,rgba(0,122,255,.22) 48deg,transparent 49deg);border-radius:50%;filter:blur(.2px)}.user-location-dot{position:absolute;left:50%;top:50%;width:20px;height:20px;transform:translate(-50%,-50%);border-radius:50%;background:#007aff;border:3px solid #fff;box-shadow:0 2px 7px #00000047}.tracker-location-marker{position:relative;width:58px;height:68px;transform:translate(-50%,-100%);pointer-events:none;filter:drop-shadow(0 4px 10px rgba(0,0,0,.22))}.tracker-location-marker:before{content:"";position:absolute;left:50%;top:0;width:54px;height:54px;transform:translate(-50%);border-radius:50%;background:linear-gradient(180deg,#fff,#f2f2f7);box-shadow:inset 0 0 0 .5px #3c3c4329}.tracker-location-tip{position:absolute;left:50%;top:42px;width:18px;height:18px;transform:translate(-50%) rotate(45deg);background:#f2f2f7;border-radius:0 0 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#00000026;display:flex;align-items:center;justify-content:center;z-index:1100}.locate-user-btn.active{background:var(--accent);color:#fff}.history-toggle-btn{position:absolute;top:16px;left:16px;width:40px;height:40px;border-radius:50%;border:none;background:var(--card);color:var(--text-secondary);font-size:18px;box-shadow:0 2px 8px #00000026;display:flex;align-items:center;justify-content:center;z-index:1100}.map-zoom-controls{position:absolute;top:112px;right:16px;z-index:1100;display:flex;flex-direction:column;overflow:hidden;border-radius:20px;background:var(--card);box-shadow:0 2px 8px #00000026}.map-zoom-controls button{width:40px;height:40px;border:none;background:transparent;color:var(--accent);font-size:24px;font-weight:500;line-height:1}.map-zoom-controls button+button{border-top:.5px solid rgba(60,60,67,.18)}.history-toggle-btn.active{background:var(--accent);color:#fff}.history-toggle-btn:disabled{opacity:.4}.history-info{display:flex;flex-direction:column;gap:2px;font-size:13px;padding:2px;min-width:140px}.history-info strong{font-size:14px}.history-info-stale{color:var(--red);font-size:12px}.manage-row{display:flex;gap:8px;align-items:center}.manage-field{flex:1;min-width:0;background:var(--bg)}.manage-btn{width:auto;min-width:76px;padding-left:14px;padding-right:14px}.share-link-box{background:var(--bg);border-radius:var(--radius-sm);padding:10px 12px;display:flex;align-items:center;gap:10px}.share-link-text{flex:1;min-width:0;color:var(--text-secondary);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.share-copy-btn{flex-shrink:0;background:var(--accent);color:#fff;border:none;border-radius:8px;padding:6px 14px;font-size:13px;font-weight:600;transition:opacity 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cubic-bezier(.32,.72,0,1)}.confirm-grabber{width:36px;height:5px;margin:0 auto 4px;border-radius:999px;background:#3c3c4340}.confirm-sheet h2{margin:4px 0 0;font-size:20px;line-height:1.2;text-align:center}.confirm-sheet p{margin:0 0 4px;color:var(--text-secondary);font-size:15px;line-height:1.35;text-align:center}@keyframes confirmSlideUp{0%{transform:translateY(24px);opacity:.72}to{transform:translateY(0);opacity:1}}.share-accept-wrap{display:flex;flex-direction:column;align-items:center;text-align:center;padding:72px 32px 48px;gap:8px}.share-accept-icon{font-size:52px;line-height:1;margin-bottom:12px}.share-accept-title{margin:0;font-size:26px;font-weight:700;letter-spacing:-.4px}.share-accept-sub{margin:0;font-size:15px;color:var(--text-secondary);max-width:260px}.share-accept-error{color:#ff3b30}.share-accept-btn{margin-top:4px;width:100%;max-width:280px}.share-accept-spinner{margin-top:16px}.map-loading{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:var(--card)}.map-unavailable{position:absolute;top:0;right:0;bottom:0;left:0;padding:24px;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;background:#f2f2f7;color:var(--text-secondary)}.map-unavailable strong{color:var(--text);font-size:17px}.device-sheet{position:absolute;left:0;right:0;bottom:0;z-index:1000;background:var(--bg);height:100%;border-radius:20px 20px 0 0;box-shadow:0 -2px 20px #0000001a;display:flex;flex-direction:column;transition:transform .32s cubic-bezier(.32,.72,0,1);touch-action:pan-y}.device-sheet.snap-collapsed{transform:translateY(calc(100% - 64px))}.device-sheet.snap-mid{transform:translateY(var(--snap-mid-translate, calc(100% - 44vh) ))}.device-sheet.snap-expanded{transform:translateY(var(--snap-expanded-translate, 0px))}.sheet-drag-handle{flex-shrink:0;padding:6px 20px 10px;cursor:grab;touch-action:none}.sheet-handle-bar{width:36px;height:5px;background:#3c3c4340;border-radius:100px;margin:0 auto 10px}.peek-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.peek-time{font-size:13px;font-weight:500;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sheet-body{overflow-y:auto;padding:0 20px 28px;display:flex;flex-direction:column;gap:12px}.panel-section{padding:16px;display:flex;flex-direction:column;gap:10px}.panel-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.panel-label{font-size:13px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.4px;margin:0}.panel-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}.stat{display:flex;flex-direction:column;gap:2px}.stat-label{font-size:12px;color:var(--text-secondary)}.stat-value{font-size:16px;font-weight:600}.stat-sub{font-size:12px;color:var(--text-secondary)}.interval-options{display:flex;gap:8px}.interval-chip{flex:1;padding:10px 0;border-radius:var(--radius-sm);border:none;background:#007aff14;color:var(--accent);font-weight:600;font-size:14px}.interval-chip.active{background:var(--accent);color:#fff}.interval-custom{background:var(--bg)}.manage-name{font-size:15px;font-weight:500;color:var(--text);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.add-device-form{display:flex;flex-direction:column;gap:14px}.error-text{color:var(--red);font-size:14px;text-align:center}@media (min-width: 768px){.screen{max-width:800px}.map-screen{left:0;transform:none;max-width:100%}.nav-bar{padding:18px 28px 14px}.map-stage{flex-direction:row}.map-container{position:relative;flex:1;inset:auto;min-width:0;min-height:0}.device-sheet{position:relative!important;left:auto!important;right:auto!important;bottom:auto!important;transform:none!important;width:340px;max-height:100%;max-width:none;flex-shrink:0;border-radius:0;box-shadow:1px 0 0 var(--separator);overflow-y:auto;order:-1}.sheet-handle-bar{display:none}.sheet-drag-handle{cursor:default;padding-top:20px}.peek-row{justify-content:flex-start;gap:12px;flex-wrap:wrap}.device-list{padding:8px 28px 100px}.history-toggle-btn{left:16px}.recenter-btn{right:16px}}:root{--bg: #f2f2f7;--card: #ffffff;--text: #1c1c1e;--text-secondary: #8e8e93;--accent: #007aff;--green: #34c759;--red: #ff3b30;--yellow: #ff9f0a;--separator: rgba(60, 60, 67, .1);--radius: 18px;--radius-sm: 12px;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);overscroll-behavior-y:none}button{font-family:inherit}a{color:inherit;text-decoration:none}input{font-family:inherit}