:root{--space-xs: 4px;--space-sm: 8px;--space-md: 12px;--space-lg: 16px;--space-xl: 24px;--space-xxl: 32px;--space-2xl: 32px;--space-3xl: 48px;--radius-sm: 8px;--radius: 14px;--radius-button: 12px;--radius-lg: 20px;--radius-xl: 28px;--radius-pill: 999px;--font-display: "Geist", system-ui, -apple-system, sans-serif;--font-body: "Geist", system-ui, -apple-system, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;--font-editorial: "Instrument Serif", Georgia, serif;--transition-fast: .2s ease-out;--transition-normal: .22s ease-out;--t-fast: .18s cubic-bezier(.32, .72, 0, 1);--t-med: .28s cubic-bezier(.32, .72, 0, 1);--t-slow: .48s cubic-bezier(.32, .72, 0, 1)}[data-theme=dark]{--bg: #0A0A0F;--bg-elev: #0F0F14;--surface: #1A1A22;--surface-2: #22222B;--surface-3: #2D2D38;--surface-translucent: rgba(26, 26, 34, .72);--border: #2A2A35;--border-strong: #333342;--border-subtle: #1F1F2A;--hairline: rgba(255, 255, 255, .06);--accent: #7C5FFF;--accent-soft: #9B7FFF;--accent-tint: rgba(124, 95, 255, .12);--accent-tint-strong: rgba(124, 95, 255, .28);--accent-border: rgba(124, 95, 255, .28);--accent-glow: rgba(124, 95, 255, .5);--dl: #60A5FA;--dl-tint: rgba(96, 165, 250, .16);--ul: #34D399;--ul-tint: rgba(52, 211, 153, .16);--text: #FAFAF7;--text-2: #9A9A9A;--text-3: #6B6B6B;--text-on-accent: #FFFFFF;--error: #F87171;--warn: #FBBF24;--success: #34D399;--info: #60A5FA;--grade-a: #34D399;--grade-b: #86EFAC;--grade-c: #FBBF24;--grade-d: #F97316;--grade-f: #F87171;--color-good-bg: rgba(52, 211, 153, .1);--color-good-border: rgba(52, 211, 153, .22);--color-warn-bg: rgba(251, 191, 36, .08);--color-warn-border: rgba(251, 191, 36, .25);--color-bad-bg: rgba(248, 113, 113, .08);--color-bad-border: rgba(248, 113, 113, .25);--card-shadow: none}[data-theme=light]{--bg: #FAFAF7;--bg-elev: #FFFFFF;--surface: #FFFFFF;--surface-2: #F3F2EE;--surface-3: #ECEAE4;--surface-translucent: rgba(255, 255, 255, .78);--border: #E8E6E0;--border-strong: #D8D5CC;--border-subtle: #F0EEE8;--hairline: rgba(0, 0, 0, .06);--accent: #5B3FE8;--accent-soft: #7C6BF0;--accent-tint: rgba(91, 63, 232, .08);--accent-tint-strong: rgba(91, 63, 232, .25);--accent-border: rgba(91, 63, 232, .25);--accent-glow: rgba(91, 63, 232, .5);--dl: #2563EB;--dl-tint: rgba(37, 99, 235, .12);--ul: #16A34A;--ul-tint: rgba(22, 163, 74, .12);--text: #0F0F14;--text-2: #3A3A3A;--text-3: #6B6B6B;--text-on-accent: #FFFFFF;--error: #DC2626;--warn: #D97706;--success: #16A34A;--info: #2563EB;--grade-a: #16A34A;--grade-b: #4ADE80;--grade-c: #D97706;--grade-d: #EA580C;--grade-f: #DC2626;--color-good-bg: rgba(22, 163, 74, .08);--color-good-border: rgba(22, 163, 74, .2);--color-warn-bg: rgba(217, 119, 6, .08);--color-warn-border: rgba(217, 119, 6, .25);--color-bad-bg: rgba(220, 38, 38, .08);--color-bad-border: rgba(220, 38, 38, .25);--card-shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 4px 12px rgba(0, 0, 0, .04)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}*,*:before,*:after{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-mono);font-variant-numeric:tabular-nums}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--card-shadow)}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);height:52px;padding:0 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14px;font-family:var(--font-editorial);font-style:italic;font-size:14px;line-height:1.4;color:var(--text);background:var(--surface-2)}.lk-result__use-row{display:flex;justify-content:space-around;padding:14px 12px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px}.lk-result__use-item{display:flex;flex-direction:column;align-items:center;gap:5px}.lk-result__use-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center}.lk-result__use-lbl{font-family:var(--font-mono);font-size:9px;color:var(--text-3);text-align:center}.lk-result__use-chip{font-family:var(--font-mono);font-size:9px;font-weight:600;padding:2px 6px;border-radius:10px}.lk-result__details{margin-bottom:14px}.lk-result__advanced{margin-bottom:20px}.lk-result__advanced-label{margin:0 0 8px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-3)}.lk-result__dns-disclaimer{margin:6px 0 0;font-size:11px;color:var(--text-3);line-height:1.4}.lk-result__tools{margin-bottom:20px}.lk-result__tools-label{margin:0 0 8px;font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;font-weight:600}.lk-result__metric{font-family:var(--font-mono);font-weight:600;font-size:14px}.lk-result__metric-sub{font-size:13px;color:var(--text-2)}.lk-result__footer{display:flex;flex-direction:column;gap:8px}.lk-result__retry{width:100%;height:50px;font-size:16px;border-radius:var(--radius)}.lk-result__footer-row{display:flex;justify-content:center;gap:16px}.lk-history{display:flex;flex-direction:column;min-height:100dvh;background:var(--bg)}.lk-history__head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 4px;flex-shrink:0}.lk-history__back{color:var(--accent);font-size:14px;font-weight:500}.lk-history__head-label{font-size:13px;color:var(--text-3)}.lk-history__main{flex:1;max-width:480px;width:100%;margin:0 auto;padding:8px 16px 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var(--border);background:var(--surface-2);color:var(--text-2);transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast)}.lk-dns-guide__tab--active{background:var(--accent);border-color:var(--accent);color:var(--text-on-accent)}.lk-dns-guide__steps{list-style:none;padding:0;margin:0 0 24px;display:flex;flex-direction:column;gap:14px}.lk-dns-guide__step{display:flex;gap:12px;align-items:flex-start}.lk-dns-guide__step-num{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--accent-tint);color:var(--accent);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}.lk-dns-guide__step-text{font-size:14px;line-height:1.55;color:var(--text);padding-top:3px}.lk-dns-guide__note{font-size:12px;line-height:1.5;color:var(--text-3);padding:12px 14px;background:var(--surface-2);border-radius:var(--radius-sm);margin:0}