:root{--space-xs: 4px;--space-sm: 8px;--space-md: 12px;--space-lg: 16px;--space-xl: 24px;--space-xxl: 32px;--radius: 16px;--radius-button: 12px;--radius-pill: 999px;--font-display: "Space Grotesk", system-ui, -apple-system, sans-serif;--font-body: "Inter", system-ui, -apple-system, sans-serif;--transition-fast: .2s ease-out;--transition-normal: .22s ease-out}[data-theme=dark]{--bg: #000000;--surface: #0D0D0D;--surface-2: #140A28;--border: #1C1C1E;--accent: #6C2BFF;--accent-soft: #7C3BFF;--dl: #3AB6FF;--ul: #22C55E;--text: #F3F4F6;--text-2: #A1A7B3;--text-3: #6B7280;--error: #FF4D4F;--warn: #F5A623;--success: #22C55E}[data-theme=light]{--bg: #FFFFFF;--surface: #F6F7F9;--surface-2: #F3F0FF;--border: #E5E7EB;--accent: #6C2BFF;--accent-soft: #7C3BFF;--dl: #3AB6FF;--ul: #22C55E;--text: #0D0D1A;--text-2: #6B7280;--text-3: #9CA3AF;--error: #FF4D4F;--warn: #F5A623;--success: #22C55E}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}*,*:before,*:after{box-shadow:none!important;text-shadow:none!important}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:14px;line-height:1.45;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overscroll-behavior-y:none}#root{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;padding:0}button:disabled{cursor:not-allowed;opacity:.45}a{color:var(--accent);text-decoration:none}.numeric{font-family:var(--font-display);font-feature-settings:"tnum" 1}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);height:52px;padding:0 var(--space-xl);background:var(--accent);color:#fff;font-family:var(--font-display);font-weight:700;font-size:16px;border-radius:var(--radius-button);transition:background var(--transition-fast)}.btn-primary:hover:not(:disabled){background:var(--accent-soft)}.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);height:48px;padding:0 var(--space-xl);background:transparent;color:var(--accent);font-family:var(--font-display);font-weight:600;font-size:15px;border:1px solid var(--accent);border-radius:var(--radius-button);transition:background var(--transition-fast)}.btn-outline:hover:not(:disabled){background:#6c2bff14}.btn-text{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 var(--space-md);color:var(--accent);font-family:var(--font-body);font-weight:500;font-size:14px}.label{font-family:var(--font-body);font-size:12px;font-weight:400;letter-spacing:.12px;color:var(--text-3);text-transform:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:fadeIn var(--transition-normal) both}.lk-header{height:52px;flex:0 0 52px;background:var(--bg);padding:0 var(--space-lg);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}.lk-header__left{display:flex;align-items:center;gap:var(--space-md)}.lk-header__logo{height:24px;width:auto;display:block}.lk-header__icon-btn{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;color:var(--text-2);border-radius:8px;transition:background var(--transition-fast),color var(--transition-fast)}.lk-header__icon-btn:hover{background:var(--surface);color:var(--text)}.lk-path{display:grid;grid-template-columns:auto 1fr auto 1fr auto;align-items:center;gap:var(--space-sm);padding:var(--space-lg) var(--space-lg) var(--space-md)}.lk-path__node{display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-3);transition:color var(--transition-normal)}.lk-path__icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center}.lk-path__label{font-family:var(--font-body);font-size:10px;font-weight:500;color:var(--text-2);text-align:center;max-width:64px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.lk-path__line{height:2px;background:var(--border);border-radius:2px;position:relative;overflow:hidden}.lk-path__line-fill{position:absolute;inset:0;background:var(--success);transform-origin:left center;transform:scaleX(0);animation:lkLineFill .6s ease-out forwards}.lk-path__line--1 .lk-path__line-fill{animation-delay:.3s}.lk-path__line--2 .lk-path__line-fill{animation-delay:1s}.lk-path__node--lit,.lk-path__node--lit .lk-path__icon{color:var(--success)}.lk-path__node--anim2{animation:lkNodeLit 1ms forwards;animation-delay:.9s}.lk-path__node--anim3{animation:lkNodeLit 1ms forwards;animation-delay:1.6s}.lk-path__node--error.lk-path__node--anim3{animation:lkNodeError 1ms forwards;animation-delay:1.6s}@keyframes lkLineFill{to{transform:scaleX(1)}}@keyframes lkNodeLit{to{color:var(--success)}}@keyframes lkNodeError{to{color:var(--error)}}.lk-sheet-backdrop{position:fixed;inset:0;background:#00000080;z-index:99;animation:lkFadeIn .22s ease}@keyframes lkFadeIn{0%{opacity:0}to{opacity:1}}.lk-sheet{position:fixed;bottom:0;left:50%;transform:translate(-50%) translateY(calc(100% - 110px));width:100%;max-width:480px;background:var(--surface);border:1px solid var(--border);border-bottom:none;border-radius:20px 20px 0 0;transition:transform .3s cubic-bezier(.32,.72,0,1);z-index:100;max-height:82vh;display:flex;flex-direction:column}.lk-sheet--open{transform:translate(-50%) translateY(0)}.lk-sheet__handle-area{all:unset;cursor:pointer;display:block;width:100%;touch-action:manipulation}.lk-sheet__handle{width:40px;height:4px;background:var(--border);border-radius:2px;margin:10px auto 0}.lk-sheet__body{overflow-y:auto;flex:1;-webkit-overflow-scrolling:touch}.lk-sheet__section{padding:var(--space-md) var(--space-lg);border-top:1px solid var(--border)}.lk-sheet__section--settings{display:flex;flex-direction:column;gap:var(--space-md)}.lk-sheet__row{display:flex;align-items:baseline;justify-content:space-between;gap:var(--space-md);padding:5px 0}.lk-sheet__row-label{font-family:var(--font-body);font-size:12px;color:var(--text-3);flex-shrink:0}.lk-sheet__row-value{font-family:var(--font-display);font-size:13px;font-weight:500;color:var(--text);text-align:right;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lk-sheet__setting{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}.lk-sheet__setting-label{font-family:var(--font-body);font-size:12px;color:var(--text-3);margin:0}.lk-seg{display:flex;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-button);overflow:hidden;flex-shrink:0}.lk-seg__btn{all:unset;padding:5px 10px;font-family:var(--font-body);font-size:11px;font-weight:500;color:var(--text-2);cursor:pointer;white-space:nowrap}.lk-seg__btn--active{background:var(--accent);color:#fff}.lk-sheet__server-list{margin-top:var(--space-sm);display:flex;flex-direction:column;gap:4px}.lk-sheet__server-item{display:flex;align-items:center;gap:var(--space-sm);font-family:var(--font-body);font-size:13px;color:var(--text-2)}.lk-sheet__server-dot{width:8px;height:8px;border-radius:50%;background:var(--border);flex-shrink:0}.lk-sheet__server-item--active .lk-sheet__server-dot{background:var(--accent)}.lk-sheet__server-item--active{color:var(--text)}.lk-sheet__bottom-pad{height:env(safe-area-inset-bottom,16px);min-height:16px}.lk-start{display:flex;flex-direction:column;min-height:100dvh;background:var(--bg)}.lk-start__main{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-xl);padding:0 var(--space-lg);padding-bottom:120px}.lk-start__error{width:100%;max-width:360px;padding:12px 16px;background:#ff4d4f14;border-left:3px solid var(--error);border-radius:var(--radius-button);color:var(--text);font-family:var(--font-body);font-size:13px;display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}.lk-start__go{all:unset;width:200px;height:200px;border-radius:50%;background:transparent;border:3px solid var(--accent);box-sizing:border-box;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:opacity .2s,transform .15s,border-color .2s;touch-action:manipulation}.lk-start__go:disabled{opacity:.35;cursor:not-allowed}.lk-start__go--ready{animation:lkPulse 2s ease-in-out infinite}.lk-start__go--ready:active{transform:scale(.96);animation:none}@keyframes lkPulse{0%,to{transform:scale(1);border-color:var(--accent)}50%{transform:scale(1.04);border-color:#6c2bff8c}}.lk-start__go-label{font-family:var(--font-display);font-weight:700;font-size:22px;color:var(--accent);letter-spacing:-.3px}.lk-start__hint{margin:0;font-family:var(--font-body);font-size:12px;color:var(--text-3);text-align:center}.lk-start__last{display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);width:100%;max-width:320px}.lk-start__last-card{all:unset;cursor:pointer;display:flex;flex-direction:column;gap:4px;width:100%;padding:12px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-button);text-align:left;transition:border-color .15s}.lk-start__last-card:hover{border-color:var(--accent)}.lk-start__last-label{font-family:var(--font-body);font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px}.lk-start__last-metrics{display:flex;gap:var(--space-md);font-family:var(--font-display);font-weight:700;font-size:16px}.lk-start__last-dl{color:var(--dl)}.lk-start__last-ul{color:var(--ul)}.lk-start__last-quality{font-family:var(--font-body);font-size:12px;color:var(--text-2)}.lk-start__history-link{font-size:13px}.lk-gauge{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;width:100%}.lk-gauge__value{font-family:var(--font-display);font-weight:700;font-size:96px;letter-spacing:-3px;color:var(--text);line-height:1}.lk-gauge__unit{font-family:var(--font-body);font-size:18px;color:var(--text-2);margin-top:8px}.lk-running{display:flex;flex-direction:column;min-height:100dvh;background:var(--bg);overflow:hidden}.lk-running__main{flex:1;display:flex;flex-direction:column;max-width:480px;width:100%;margin:0 auto;padding:0 var(--space-lg)}.lk-running__gauge{display:flex;justify-content:center;flex:1;align-items:center}.lk-running__phrase{text-align:center;font-family:var(--font-body);font-size:15px;color:var(--text-2);margin:0 0 var(--space-xl);min-height:22px}.lk-running__footer{display:flex;justify-content:center;padding-bottom:var(--space-xl)}.lk-running__cancel{font-size:13px;color:var(--text-3)}.lk-running__main--error{justify-content:center;align-items:center;text-align:center}.lk-running__error{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);max-width:360px;padding:0 var(--space-lg)}.lk-running__error-icon{color:var(--error)}.lk-running__error-title{font-family:var(--font-display);font-weight:700;font-size:20px;color:var(--text);margin:0}.lk-running__error-msg{font-family:var(--font-body);font-size:14px;color:var(--text-2);margin:0}.lk-running__error-actions{display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);margin-top:var(--space-md)}.lk-result{display:flex;flex-direction:column;min-height:100dvh;background:var(--bg)}.lk-result__main{flex:1;max-width:480px;width:100%;margin:0 auto;padding:var(--space-lg) var(--space-lg) var(--space-xxl);display:flex;flex-direction:column;gap:var(--space-xl)}.lk-banner{display:flex;align-items:flex-start;gap:var(--space-md);padding:14px 16px;border-left-width:4px;border-left-style:solid;border-radius:12px}.lk-banner--excellent{background:#22c55e14;border-left-color:var(--success)}.lk-banner--good{background:#22c55e0d;border-left-color:var(--success)}.lk-banner--fair{background:#f5a62314;border-left-color:var(--warn)}.lk-banner--slow,.lk-banner--unavailable{background:#ff4d4f14;border-left-color:var(--error)}.lk-banner__icon{width:24px;height:24px;border-radius:var(--radius-pill);background:#ffffff14;color:var(--text);display:flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 24px}.lk-banner--excellent .lk-banner__icon,.lk-banner--good .lk-banner__icon{color:var(--success)}.lk-banner--fair .lk-banner__icon{color:var(--warn)}.lk-banner--slow .lk-banner__icon,.lk-banner--unavailable .lk-banner__icon{color:var(--error)}.lk-banner__title{font-family:var(--font-display);font-weight:700;font-size:15px;color:var(--text)}.lk-banner__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}.lk-chip{display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:var(--radius-pill);font-family:var(--font-body);font-size:11px;font-weight:500;background:var(--surface);border:1px solid var(--border);color:var(--text-2)}.lk-chip--good{background:#22c55e1f;border-color:#22c55e4d;color:var(--success)}.lk-chip--maybe{background:#f5a6231f;border-color:#f5a6234d;color:var(--warn)}.lk-chip--limited{background:#ff4d4f1f;border-color:#ff4d4f4d;color:var(--error)}.lk-primary{display:grid;grid-template-columns:1fr 1px 1fr;gap:var(--space-md);padding:var(--space-lg) 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.lk-primary__col{display:flex;flex-direction:column;align-items:center;gap:4px}.lk-primary__divider{background:var(--border)}.lk-primary__label{font-family:var(--font-body);font-size:12px;color:var(--text-2)}.lk-primary__value{font-family:var(--font-display);font-weight:700;font-size:36px;letter-spacing:-1px;display:inline-flex;align-items:baseline;gap:6px;line-height:1}.lk-primary__value--dl{color:var(--dl)}.lk-primary__value--ul{color:var(--ul)}.lk-primary__unit{font-size:13px;font-weight:500;color:var(--text-2);letter-spacing:0}.lk-secondary{display:grid;grid-template-columns:repeat(3,1fr)}.lk-secondary__col{display:flex;flex-direction:column;align-items:center;gap:4px}.lk-secondary__value{font-family:var(--font-display);font-weight:600;font-size:18px;color:var(--text);letter-spacing:-.3px}.lk-secondary__label{font-family:var(--font-body);font-size:11px;color:var(--text-3)}.lk-secondary__value--stab{font-size:13px;letter-spacing:0;font-family:var(--font-body);font-weight:500}.lk-section{display:flex;flex-direction:column;gap:var(--space-md)}.lk-section__title{margin:0;font-family:var(--font-display);font-weight:600;font-size:16px;color:var(--text);letter-spacing:-.2px}.lk-section__paragraph{margin:0;font-family:var(--font-body);font-size:14px;color:var(--text-2);line-height:1.5}.lk-usegrid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-sm)}.lk-usecase{display:flex;flex-direction:column;gap:6px;padding:12px 0;border-bottom:1px solid var(--border)}.lk-usecase__icon{color:var(--text-2)}.lk-usecase__label{font-family:var(--font-display);font-weight:600;font-size:13px;color:var(--text)}.lk-usecase .lk-chip{align-self:flex-start}.lk-details{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md)}.lk-details>div{display:flex;flex-direction:column;gap:2px}.lk-details dt{font-family:var(--font-body);font-size:11px;color:var(--text-3)}.lk-details dd{margin:0;font-family:var(--font-display);font-size:13px;font-weight:500;color:var(--text)}.lk-prev{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-md);font-family:var(--font-body);font-size:13px;color:var(--text-2);justify-content:space-between}.lk-fab{position:fixed;bottom:calc(env(safe-area-inset-bottom,0px) + 20px);right:20px;width:52px;height:52px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10;transition:opacity .15s,transform .15s}.lk-fab:active{opacity:.8;transform:scale(.95)}.lk-actions{display:flex;flex-direction:column;gap:var(--space-md);align-items:center;margin-top:var(--space-md);padding-bottom:calc(env(safe-area-inset-bottom,0px) + 80px)}.lk-actions__btn{width:100%}.lk-history{display:flex;flex-direction:column;min-height:100dvh;background:var(--bg)}.lk-history__main{flex:1;max-width:480px;width:100%;margin:0 auto;padding:var(--space-lg) var(--space-lg) calc(env(safe-area-inset-bottom,0px) + 90px);display:flex;flex-direction:column;gap:var(--space-lg)}.lk-history__title{margin:0;font-family:var(--font-display);font-weight:700;font-size:22px;color:var(--text);letter-spacing:-.5px}.lk-history__empty{padding:var(--space-xl);text-align:center;color:var(--text-2);font-family:var(--font-body);font-size:14px}.lk-history__diagnosis{display:flex;flex-direction:column;gap:6px;padding:var(--space-md);background:var(--surface);border-radius:var(--radius-button);border:1px solid var(--border)}.lk-history__diagnosis-label{margin:0;font-family:var(--font-body);font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.6px}.lk-history__diagnosis-text{margin:0;font-family:var(--font-body);font-size:13px;line-height:1.5;color:var(--text)}.lk-history__chart-section{display:flex;flex-direction:column;gap:var(--space-sm)}.lk-history__chart-title{margin:0;font-family:var(--font-display);font-weight:600;font-size:13px;color:var(--text-2)}.lk-history__chart{height:140px;width:100%}.lk-history__chart-legend{display:flex;gap:var(--space-lg);font-family:var(--font-body);font-size:11px}.lk-history__legend-dl{color:#3ab6ff}.lk-history__legend-ul{color:#22c55e}.lk-history__summary{padding:var(--space-md) 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.lk-history__summary-label{margin:0 0 6px;font-family:var(--font-body);font-size:11px;color:var(--text-3)}.lk-history__summary-metrics{display:flex;gap:var(--space-lg);font-family:var(--font-display);font-weight:700;font-size:22px;letter-spacing:-.5px}.lk-history__summary-dl{color:var(--dl)}.lk-history__summary-ul{color:var(--ul)}.lk-history__summary-quality{margin:4px 0 0;font-family:var(--font-body);font-size:12px;color:var(--text-2)}.lk-history__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.lk-history__item{display:flex;flex-direction:column;gap:5px;padding:var(--space-md) 0;border-bottom:1px solid var(--border);cursor:pointer}.lk-history__item:first-child{border-top:1px solid var(--border)}.lk-history__row1{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md)}.lk-history__date{font-family:var(--font-body);font-size:12px;color:var(--text-2)}.lk-history__row2{display:flex;flex-wrap:wrap;gap:var(--space-md);font-family:var(--font-display);font-weight:600;font-size:14px;color:var(--text)}.lk-history__dl{color:var(--dl)}.lk-history__ul{color:var(--ul)}.lk-history__row3{display:flex;align-items:center;gap:6px;font-family:var(--font-body);font-size:11px;color:var(--text-3)}.lk-history__icons{display:flex;align-items:center;gap:3px;color:var(--text-3)}.lk-history__footer{display:flex;justify-content:center}.lk-history__clear{color:var(--error)}.lk-history .lk-fab{position:fixed;bottom:calc(env(safe-area-inset-bottom,0px) + 20px);right:20px;width:52px;height:52px;border-radius:50%;background:var(--accent);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10;transition:opacity .15s,transform .15s}.lk-history .lk-fab:active{opacity:.8;transform:scale(.95)}.lk-history--detail{position:fixed;inset:0;overflow-y:auto;z-index:50}.lk-hist-detail__header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:1}.lk-hist-detail__date{font-family:var(--font-body);font-size:12px;color:var(--text-2)}