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p{margin-top:10px;color:var(--muted)}.section-heading{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-bottom:20px}.button-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.empty-state{color:var(--muted);text-align:center;padding:48px 16px}.skip-link{position:fixed;left:16px;top:-100px;z-index:100;padding:12px 20px;background:var(--surface);border:1px solid var(--accent);border-radius:8px}.skip-link:focus{top:16px}dialog{color:var(--text);background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px;width:min(600px,calc(100vw - 32px));max-height:90dvh}dialog::backdrop{background:#14182780;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}dialog .dialog-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}dialog .dialog-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}@media (max-width:699px){.header-inner{min-height:76px;padding:12px 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h1{font-size:clamp(2.5rem,4.5vw,3.9rem);line-height:1.35}.auth-lead{margin-top:24px;line-height:1.9}.auth-illustration{position:relative;height:240px;margin-top:40px;max-width:450px}.drawn-book{width:140px;height:190px;position:absolute;top:10px;border-radius:4px 12px 12px 4px;padding:24px;display:flex;flex-direction:column;justify-content:space-between;border-left:6px solid #0001}.drawn-book>.ui-icon{width:32px;height:32px}.drawn-book>span{letter-spacing:.1em;font-size:16px}.book-one{left:0;background:#d1d7e8;color:#394768;transform:rotate(-10deg)}.book-two{left:130px;top:30px;background:#e2d6c3;color:#73634d;transform:rotate(6deg)}.book-three{left:265px;background:#d6dfd5;color:#53634e;transform:rotate(14deg)}.auth-foot{color:var(--muted)}.auth-form{padding:36px;box-shadow:var(--shadow)}.auth-form>h2{font-size:1.8rem;margin-bottom:12px}.auth-form>.field{margin-top:24px}.auth-form>.button-primary{width:100%;margin-top:28px;justify-content:space-between}.auth-form>.notice{margin-top:24px}.auth-switch{display:flex;align-items:center;justify-content:center;margin-top:24px;gap:8px}.reading-feature{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:center;min-height:280px;padding:36px;background:var(--accent-soft);border:1px solid 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var(--line)}.chat-messages{height:360px;padding:20px}.chat-composer{padding:20px}.chat-empty{min-height:260px}.user-row{gap:12px;flex-wrap:wrap}.user-row .user-avatar{display:none}}.network-metrics small{display:block;color:var(--muted);font-size:16px;margin-top:8px}.speed-progress{display:block;width:100%;height:8px;margin:0 0 20px;accent-color:var(--accent)}.speed-error{margin:0 0 20px}.history-heading{flex-wrap:wrap}.history-period{min-width:170px}.network-plot{min-width:0}.chart-legend{display:flex;flex-wrap:wrap;gap:4px;margin:16px 0 20px}.chart-legend .ui-button{padding:10px 12px;font-weight:400}.chart-legend [aria-pressed=true]{background:var(--surface-alt)}.legend-stroke{display:inline-block;width:20px;border-top:3px solid var(--series-color)}.legend-stroke.is-dashed{border-top-style:dashed}.network-chart{width:100%;height:330px;overflow:visible;touch-action:pan-y pinch-zoom}.network-chart text{font-family:inherit;font-size:16px;fill:var(--muted)}.network-chart 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.chart-line[data-series=dl_mbps]{stroke:#95a8ff!important}:root[data-theme=dark] .chart-line[data-series=ul_mbps]{stroke:#77c8bf!important}:root[data-theme=dark] .chart-line[data-series=rtt_ms]{stroke:#e3b17b!important}@media (max-width:699px){.network-metrics{margin:24px 0}.network-metrics small{overflow-wrap:anywhere}.history-heading>.button-row{width:100%}.history-period{flex:1}.chart-legend{gap:4px}.chart-legend .ui-button{padding:10px 8px}}.reading-feature{position:relative;isolation:isolate;overflow:hidden;transition:box-shadow .25s,border-color .25s}.ambient-surface{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;background:radial-gradient(ellipse at 75% 35%,#d3e5e3,transparent 55%),linear-gradient(130deg,#e9edf9,#dedff2)}.ambient-surface canvas{display:block;width:100%;height:100%;opacity:0}.ambient-surface .canvas-ready{opacity:1}.reading-feature .feature-copy{position:relative;padding:12px 16px 12px 0}.reading-feature .feature-copy:before{content:"";position:absolute;top:-20px;right:-16px;bottom:-20px;left:-20px;z-index:-1;background:linear-gradient(90deg,#ebeefaee,#ebeefa99,transparent);border-radius:16px}.art-front{transform:translate(calc(var(--pointer-x,0)*12px),calc(var(--pointer-y,0)*8px)) rotate(calc(12deg + var(--pointer-x,0)*5deg));transition:transform .3s ease-out}.art-back{transform:translate(calc(var(--pointer-x,0)*-7px),calc(var(--pointer-y,0)*-5px)) rotate(-16deg);transition:transform .4s ease-out}.tool-card{position:relative;overflow:hidden;isolation:isolate;transition:transform .2s,border-color .2s,box-shadow .2s}.tool-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;opacity:0;background:radial-gradient(ellipse at 80% 0%,var(--accent-soft),transparent 70%);transition:opacity .25s}.tool-card:active{transform:scale(.985)}.feature-link .ui-icon,.tool-arrow{transition:transform .2s}:root[data-theme=dark] .ambient-surface{background:radial-gradient(ellipse at 75% 35%,#284a4f,transparent 55%),linear-gradient(130deg,#23283e,#30293d)}:root[data-theme=dark] .reading-feature .feature-copy:before{background:linear-gradient(90deg,#23283eee,#23283e88,transparent)}@media (hover:hover) and (prefers-reduced-motion:no-preference){.reading-feature:hover{box-shadow:0 10px 32px #424da214;border-color:var(--accent)}.reading-feature:hover .feature-link .ui-icon,.tool-card:hover .tool-arrow{transform:translate(4px)}.tool-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent)}.tool-card:hover:before{opacity:1}}@media (prefers-reduced-motion:reduce){.art-front{transform:rotate(12deg)}.art-back{transform:rotate(-16deg)}.tool-card:active{transform:none}}