:root{--bg:#eef2f7;--surface:#fff;--surface-soft:#f5f7fb;--text:#18202f;--muted:#667085;--border:#dfe6f0;--primary:#155eef;--primary-hover:#0f49ba;--primary-soft:#e8f1ff;--notice-text:#123d7a;--shadow:0 16px 40px #10182814;--hero-start:#101827;--hero-mid:#17345d;--hero-end:#0f766e;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}:root[data-theme=dark]{--bg:#0d111a;--surface:#151b27;--surface-soft:#1d2635;--text:#ecf1f8;--muted:#a7b0c0;--border:#293447;--primary:#62a0ff;--primary-hover:#8ab8ff;--primary-soft:#172b4d;--notice-text:#d7e8ff;--shadow:0 18px 50px #00000047;--hero-start:#090d15;--hero-mid:#14243a;--hero-end:#0f4d4a}*{box-sizing:border-box}body{background:radial-gradient(circle at 12% 8%, #155eef1f, transparent 32%), linear-gradient(180deg, var(--bg), 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var(--border);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);position:fixed;top:20px;right:20px}.icon-button{place-items:center;width:42px;min-width:42px;height:42px;padding:0;font-size:21px;line-height:1;display:inline-grid}.auth-card{background:var(--surface);border-left:1px solid var(--border);flex-direction:column;justify-content:center;gap:24px;padding:40px;animation:.42s both slide-in;display:flex}.tabs{background:var(--surface-soft);border-radius:8px;grid-template-columns:1fr 1fr;gap:6px;padding:4px;display:grid;position:relative;overflow:hidden}.tabs button{z-index:1;color:var(--muted);box-shadow:none;background:0 0;position:relative}.tabs button.active{color:var(--primary)}.tab-indicator{z-index:0;background:var(--surface);border-radius:6px;width:calc(50% - 7px);transition:transform .26s cubic-bezier(.2,.8,.2,1),background .18s;position:absolute;top:4px;bottom:4px;left:4px;box-shadow:0 1px 3px #10182824}.tabs.is-register 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