:root{--color-primary:#2183da;--color-primary-dark:#1a6db8;--color-primary-light:#4a9ff0;--color-secondary:#3b93df;--color-secondary-light:#6bb1f0;--color-accent:#57b5ff;--color-text:#1a2332;--color-text-h:#1a6db8;--color-bg:#fff;--color-bg-secondary:#f5f7f7;--color-border:#d1d9e0;--color-code-bg:#f0f4f4;--color-success:#4caf50;--color-error:#f44336;--color-warning:#ff9800;--color-info:#2196f3;--shadow:#2183da0d 0 10px 15px -3px, #2183da08 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px / 145% var(--sans);letter-spacing:.18px;color:var(--color-text);background:var(--color-bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (width<=1024px){:root{font-size:16px}}.input-field{color:#1a2332;box-sizing:border-box;background:#fff;border:1px solid #d1d5db;border-radius:6px;padding:10px 12px;font-family:inherit;font-size:14px;transition:border-color .2s,box-shadow .2s}.input-field:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #2183da1f}.input-field:disabled{opacity:.5;cursor:not-allowed}.btn{cursor:pointer;border:none;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark)}body{margin:0}#root{box-sizing:border-box;flex-direction:column;width:100%;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--color-text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--color-text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}.error-boundary{justify-content:center;align-items:center;min-height:60vh;padding:2rem;display:flex}.error-boundary-card{text-align:center;background:#fff;border:1px solid #e0e6ed;border-radius:10px;width:100%;max-width:480px;padding:3rem 4rem;box-shadow:0 2px 12px #0000000f}.error-boundary-title{color:#1a2332;margin:0 0 .75rem;font-size:1.5rem;font-weight:600}.error-boundary-message{color:#6b7a8d;margin:0 0 2rem;font-size:.95rem;line-height:1.5}.error-boundary-actions{justify-content:center;gap:.75rem;display:flex}.error-boundary-btn{cursor:pointer;border:none;border-radius:8px;padding:.625rem 1.5rem;font-size:.9rem;font-weight:500;transition:background .2s}.error-boundary-btn-primary{color:#fff;background:#1a73e8}.error-boundary-btn-primary:hover{background:#1557b0}.error-boundary-btn-secondary{color:#1a2332;background:#f1f3f5}.error-boundary-btn-secondary:hover{background:#e2e6ea}.app-header{z-index:100;background:#fff;padding:12px 24px;position:sticky;top:0;box-shadow:0 2px 8px #00000014}.header-content{justify-content:space-between;align-items:center;max-width:1400px;margin:0 auto;display:flex;position:relative}.logo-section{cursor:pointer;align-items:center;gap:14px;display:flex}.logo-image{object-fit:contain;width:auto;height:44px}.logo-text{flex-direction:column;gap:1px;display:flex}.app-name{color:#2183da;letter-spacing:1.5px;margin:0;padding:0;font-size:18px;font-weight:700}.app-tagline{color:#8ba4b8;letter-spacing:.5px;text-transform:uppercase;margin:0;padding:0;font-size:11px;font-weight:500}.header-nav{align-items:center;gap:10px;display:flex}.language-switcher{border-right:1px solid #d1d9e0;align-items:center;gap:4px;margin-right:6px;padding-right:10px;display:flex}.lang-btn{color:#8ba4b8;cursor:pointer;letter-spacing:.5px;background:0 0;border:none;padding:2px 4px;font-family:inherit;font-size:12px;font-weight:700;transition:color .2s ease-in-out}.lang-btn:hover,.lang-btn-active{color:#2183da}.lang-divider{color:#d1d9e0;font-size:12px}.nav-button{color:#2183da;cursor:pointer;letter-spacing:.5px;background:0 0;border:1px solid #2183da;border-radius:6px;padding:7px 18px;font-family:inherit;font-size:13px;font-weight:600;transition:all .2s ease-in-out}.nav-button:hover{color:#fff;background:#2183da;border-color:#2183da}.nav-button-primary{color:#fff;background:#2183da;border-color:#2183da;box-shadow:0 1px 3px #2183da4d}.nav-button-primary:hover{background:#1a6db8;border-color:#1a6db8}.hamburger{cursor:pointer;background:0 0;border:none;flex-direction:column;justify-content:center;gap:5px;padding:8px 4px;display:none}.hamburger span{background:#2183da;border-radius:2px;width:24px;height:2.5px;transition:all .25s ease-in-out;display:block}.hamburger-open span:first-child{transform:translateY(7.5px)rotate(45deg)}.hamburger-open span:nth-child(2){opacity:0}.hamburger-open span:nth-child(3){transform:translateY(-7.5px)rotate(-45deg)}@media (width<=768px){.app-header{padding:10px 16px}.logo-section{gap:10px}.logo-image{height:36px}.app-name{letter-spacing:1px;font-size:16px}.app-tagline{font-size:10px}.hamburger{display:flex}.header-nav{z-index:200;background:#fff;border-radius:0 0 8px 8px;flex-direction:column;align-items:stretch;gap:4px;width:240px;padding:12px 16px;display:none;position:absolute;top:100%;left:auto;right:0;box-shadow:0 4px 16px #0000001f}.header-nav-open{display:flex}.header-nav .language-switcher{border-bottom:1px solid #eef2f4;border-right:none;justify-content:center;width:100%;margin-bottom:8px;margin-right:0;padding-bottom:8px;padding-right:0}.header-nav .nav-button{text-align:center;color:#1a2332;background:#f5f7f7;border:none;border-radius:6px;width:100%;padding:10px 16px;font-size:14px}.header-nav .nav-button:hover,.header-nav .nav-button-primary{color:#fff;background:#2183da}.header-nav .nav-button-primary:hover{background:#1a6db8}}@media (width<=480px){.app-header{padding:8px 12px}.logo-image{height:32px}.app-name{letter-spacing:.5px;font-size:14px}.app-tagline{display:none}.header-nav{border-radius:0;width:100%;left:0;right:0}}:root{--color-primary:#2183da;--color-primary-dark:#1a6db8;--color-primary-light:#4a9ff0;--color-secondary:#3b93df;--color-secondary-light:#6bb1f0;--color-accent:#57b5ff;--color-text-primary:#1a2332;--color-text-secondary:#666;--color-text-light:#999;--color-text-inverse:#fff;--color-bg-primary:#fff;--color-bg-secondary:#f5f7f7;--color-bg-tertiary:#e8ecef;--color-success:#4caf50;--color-error:#f44336;--color-warning:#ff9800;--color-info:#2196f3;--color-border:#d1d9e0;--shadow-light:0 1px 2px 0 #2183da0d;--shadow-md:0 2px 4px 0 #2183da14;--shadow-lg:0 4px 8px 0 #2183da1f;--shadow-xl:0 8px 16px 0 #2183da26}.app-container{background-color:var(--color-bg-secondary);flex-direction:column;min-height:100vh;display:flex}.app-main{flex-direction:column;flex:1;display:flex}.page-loading{color:var(--color-text-secondary,#666);flex:1;justify-content:center;align-items:center;padding:64px 24px;font-size:16px;display:flex}