:root{--color-primary:#0fa3b8;--color-primary-dark:#0b849a;--color-primary-light:#3dbcd4;--color-secondary:#1d3461;--color-secondary-light:#2d5087;--color-accent:#f59e0b;--color-text:#1c1917;--color-text-h:#0b849a;--color-bg:#fafaf9;--color-bg-secondary:#f5f5f4;--color-border:#e7e5e4;--color-code-bg:#f5f5f4;--color-success:#059669;--color-error:#dc2626;--color-warning:#d97706;--color-info:#0ea5e9;--shadow:#0fa3b80d 0 10px 15px -3px, #0fa3b808 0 4px 6px -2px;--sans:"Inter", system-ui, "Segoe UI", Roboto, sans-serif;--heading:"Inter", 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:#1c1917;box-sizing:border-box;background:#fff;border:1px solid #e7e5e4;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 #0fa3b826}.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)}.btn-secondary{color:#44403c;background:#f5f5f4;border:1px solid #d6d3d1}.btn-secondary:hover:not(:disabled){background:#e7e5e4}.btn-danger{color:#dc2626;background:#fee2e2;border:1px solid #fecaca}.btn-danger:hover:not(:disabled){background:#fecaca}.btn-sm{border-radius:4px;padding:5px 12px;font-size:12px}.btn-loading{pointer-events:none;opacity:.8}.btn-loading:before{content:"";border:2px solid;border-top-color:#0000;border-radius:50%;flex-shrink:0;width:14px;height:14px;animation:.6s linear infinite btn-spin}@keyframes btn-spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}body{margin:0}#root{box-sizing:border-box;flex-direction:column;width:100%;max-width:100vw;min-height:100svh;margin:0 auto;display:flex;overflow-x:clip}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;border-bottom:1px solid #e7e5e4;padding:12px 24px;position:sticky;top:0}.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}.header-nav{align-items:center;gap:4px;display:flex}.language-switcher{border-right:1px solid #e7e5e4;align-items:center;gap:4px;margin-right:12px;padding-right:12px;display:flex}.lang-btn{color:#a8a29e;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:#0fa3b8}.lang-divider{color:#e7e5e4;font-size:12px}.nav-button{color:#78716c;cursor:pointer;letter-spacing:.2px;background:0 0;border:none;border-bottom:2px solid #0000;border-radius:0;padding:6px 12px;font-family:inherit;font-size:13px;font-weight:500;transition:color .2s ease-in-out,border-color .2s ease-in-out}.nav-button:hover{color:#0fa3b8}.nav-button-active{color:#0fa3b8;border-bottom-color:#0fa3b8}.nav-button-primary{color:#fff;cursor:pointer;letter-spacing:.2px;background:#0fa3b8;border:none;border-bottom:2px solid #0000;border-radius:6px;margin-left:8px;padding:7px 18px;font-family:inherit;font-size:13px;font-weight:600;transition:background .2s ease-in-out}.nav-button-primary:hover{background:#0b849a}.hamburger{cursor:pointer;background:0 0;border:none;flex-direction:column;justify-content:center;gap:5px;padding:8px 4px;display:none}.hamburger span{background:#0fa3b8;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}.hamburger{display:flex}.header-nav{z-index:200;background:#fff;border:1px solid #e7e5e4;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 #00000014}.header-nav-open{display:flex}.header-nav .language-switcher{border-bottom:1px solid #e7e5e4;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:#1c1917;background:#f5f5f4;border:none;border-radius:6px;width:100%;padding:10px 16px;font-size:14px;font-weight:500}.header-nav .nav-button:hover{color:#fff;background:#0fa3b8}.header-nav .nav-button-primary{color:#fff;background:#0fa3b8;border-radius:6px;margin-left:0}.header-nav .nav-button-primary:hover{background:#0b849a}}@media (width<=480px){.app-header{padding:8px 12px}.logo-image{height:32px}.header-nav{border-radius:0;width:100%;left:0;right:0}}.app-footer{border-top:1px solid var(--color-border,#e5e7eb);background:var(--color-surface,#fff);margin-top:auto;padding:20px 24px}.footer-content{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;max-width:1100px;margin:0 auto;display:flex}.footer-copy{color:var(--color-text-secondary,#666);margin:0;font-size:13px}.footer-links{flex-wrap:wrap;gap:20px;display:flex}.footer-links a{color:var(--color-text-secondary,#666);font-size:13px;text-decoration:none}.footer-links a:hover{color:var(--color-primary,#5b21b6);text-decoration:underline}@media (width<=600px){.footer-content{flex-direction:column;align-items:flex-start}}.toast-container{z-index:9999;pointer-events:none;flex-direction:column;gap:10px;width:calc(100vw - 48px);max-width:360px;display:flex;position:fixed;bottom:24px;right:24px}.toast{pointer-events:all;background:#fff;border:1px solid #e7e5e4;border-radius:8px;align-items:flex-start;gap:10px;padding:14px 16px;animation:.25s ease-out toast-in;display:flex;box-shadow:0 4px 12px #0000001f}@keyframes toast-in{0%{opacity:0;transform:translateY(12px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.toast-bar{border-radius:2px;flex-shrink:0;align-self:stretch;width:4px;min-height:16px}.toast-success .toast-bar{background:#059669}.toast-error .toast-bar{background:#dc2626}.toast-warning .toast-bar{background:#d97706}.toast-info .toast-bar{background:#0ea5e9}.toast-body{flex:1;min-width:0}.toast-message{color:#1c1917;word-break:break-word;font-size:14px;font-weight:500;line-height:1.4}.toast-close{cursor:pointer;color:#a8a29e;background:0 0;border:none;flex-shrink:0;padding:0 2px;font-family:inherit;font-size:18px;line-height:1;transition:color .15s}.toast-close:hover{color:#1c1917}@media (width<=480px){.toast-container{width:auto;max-width:none;bottom:16px;left:16px;right:16px}}:root{--color-primary:#0fa3b8;--color-primary-dark:#0b849a;--color-primary-light:#3dbcd4;--color-secondary:#1d3461;--color-secondary-light:#2d5087;--color-accent:#f59e0b;--color-text-primary:#1c1917;--color-text-secondary:#78716c;--color-text-light:#a8a29e;--color-text-inverse:#fff;--color-bg-primary:#fafaf9;--color-bg-secondary:#f5f5f4;--color-bg-tertiary:#e7e5e4;--color-success:#059669;--color-error:#dc2626;--color-warning:#d97706;--color-info:#0ea5e9;--color-border:#e7e5e4;--shadow-light:0 1px 2px 0 #0fa3b80d;--shadow-md:0 2px 4px 0 #0fa3b814;--shadow-lg:0 4px 8px 0 #0fa3b81f;--shadow-xl:0 8px 16px 0 #0fa3b826}.app-container{background-color:var(--color-bg-secondary);flex-direction:column;min-height:100vh;display:flex}.app-main{flex-direction:column;flex:1;min-width:0;display:flex;overflow-x:clip}.page-loading{color:var(--color-text-secondary,#78716c);flex:1;justify-content:center;align-items:center;padding:64px 24px;font-size:16px;display:flex}