:root{--primary:#1e3a8a;--primary-light:#2563eb;--text-main:#0f172a;--text-sub:#334155;--text-muted:#64748b;--bg-main:#f8fafc;--bg-card:#fff;--primary-bg:#eff6ff;--accent-light:#f59e0b;--border-color:#e2e8f0;--control-border:#64748b;--radius:18px;--shadow:0 2px 6px rgba(15,23,42,.06);--space:24px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;color:var(--text-main);background:var(--bg-main);font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:18px;line-height:1.75;word-break:keep-all;overflow-wrap:anywhere}a{color:var(--primary);text-underline-offset:4px}button,input,select,textarea{font:inherit}a,button,input,select,textarea{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid 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24px;margin:auto;display:flex;align-items:center;gap:28px;min-height:80px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--primary);font-size:25px;font-weight:800;letter-spacing:-1px;white-space:nowrap}.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:25px}.brand-sub{display:block;font-size:11px;line-height:1.2;letter-spacing:1.7px;color:var(--text-muted)}.desktop-nav{display:flex;flex:1;gap:22px;justify-content:flex-end;align-items:center}.desktop-nav a{font-size:15px;white-space:nowrap;color:var(--text-sub);font-weight:700;text-decoration:none}.desktop-nav a[aria-current=page]{color:var(--primary-light);border-bottom:2px solid var(--primary-light)}.header-search{border-left:1px solid var(--border-color);padding-left:20px}.menu-button{display:none;min-height:44px;min-width:44px;border:1px solid var(--border-color);background:#fff;border-radius:8px;color:var(--primary);font-size:15px;font-weight:700}.mobile-nav{padding:8px 20px 20px;border-top:1px solid var(--border-color)}.mobile-nav a{display:block;padding:10px 4px;text-decoration:none;font-weight:700}.mobile-nav[hidden]{display:none}.hero{background:var(--primary);color:#fff;border-bottom:4px solid var(--accent-light)}.hero .container{padding:48px 0 40px}.eyebrow{font-size:14px;letter-spacing:1px;font-weight:800;color:var(--primary);margin-bottom:12px;display:block}.hero .eyebrow{color:#dbeafe}.hero h1{max-width:650px}.hero h1 em{font-style:normal;color:#fcd34d}.hero p{color:#e2e8f0;max-width:620px;margin-bottom:24px}.hero .button{background:#fff;color:var(--primary)}.hero-small .container{padding:32px 0}.quick-access{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}.quick-access a{border:1px solid #93a4ce;color:#fff;font-size:15px;min-height:44px;padding:8px 14px;border-radius:8px;text-decoration:none;background:#284790}.quick-access a:focus-visible{outline-color:#fcd34d}.hero-note{font-size:14px;margin-top:24px;color:#dbeafe}.page-content{padding-top:32px;padding-bottom:48px}.section{margin:40px 0}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:16px}.section-heading small{font-size:14px;color:var(--text-muted);white-space:nowrap}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;margin:20px 0;min-width:0}.hub-card,.nexus-card{display:flex;gap:18px;align-items:flex-start;text-decoration:none;color:var(--text-main);transition:transform .15s,border-color .15s}.hub-card h3,.nexus-card h3{color:var(--primary);margin:4px 0 8px}.hub-card p,.nexus-card p{color:var(--text-sub);font-size:16px;margin:0}.hub-card .link-label{display:block;color:var(--primary-light);font-size:15px;font-weight:700;margin-top:12px}.hub-card 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var(--primary);border-radius:10px;background:var(--primary);color:#fff;text-decoration:none;font-weight:800;font-size:17px;line-height:1.5;text-align:center}.button-secondary{color:var(--primary);background:#fff}.button-small{font-size:15px;min-height:44px;padding:8px 14px}.button-group{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}.full-width{width:100%}.sources{font-size:15px;color:var(--text-sub)}.sources li{margin:12px 0}.sources h2{font-size:22px}.article-body{font-size:18px}.article-body p{line-height:1.9}.article-body section{margin:36px 0}.table-scroll{overflow-x:auto;border:1px solid var(--border-color);border-radius:12px;margin:20px 0}table{border-collapse:collapse;width:100%;font-size:16px;min-width:440px}caption{text-align:left;padding:16px;font-weight:700}th,td{padding:14px 16px;border-bottom:1px solid var(--border-color);text-align:left;vertical-align:top}th{background:var(--primary-bg);color:var(--primary)}tr:last-child 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#94a3b8;border-radius:12px;background:#fff;color:#475569;text-align:center;margin-top:24px}.search-box{display:flex;gap:12px}.search-box input{flex:1}.search-results{margin:24px 0}.search-result .tag{margin-bottom:8px}.status-line{font-size:15px;color:var(--text-sub)}.filter-count{color:var(--primary);font-weight:800;font-size:20px}.library-list{display:flex;flex-direction:column;gap:12px}.library-list a{display:block;background:#fff;border:1px solid var(--border-color);border-left:4px solid var(--primary-light);padding:18px 20px;border-radius:10px;text-decoration:none;font-weight:700;font-size:17px}.library-list a span{display:block;font-size:15px;font-weight:400;color:var(--text-sub);margin-top:8px}.category-number{color:var(--text-muted);font-size:14px;letter-spacing:1px}.footer{border-top:1px solid var(--border-color);background:#fff;padding:36px 0;color:var(--text-sub);font-size:14px}.footer .brand{font-size:23px;margin-bottom:16px}.footer-links{display:flex;flex-wrap:wrap;gap:10px 20px;margin:24px 0}.footer-links a{min-height:44px;display:inline-flex;align-items:center}.footer p{max-width:720px;margin-bottom:12px}.quiz-nav{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}.quiz-nav button{min-width:44px;min-height:44px;border:2px solid var(--control-border);background:#fff;color:var(--text-main);border-radius:8px;font-weight:700}.quiz-nav button.answered{background:#dbeafe;border-color:var(--primary);color:var(--primary)}.quiz-nav button.review{box-shadow:inset 0 -5px #b45309}.quiz-nav button[aria-current=true]{outline:3px solid var(--primary-light);outline-offset:2px}.quiz-options{display:flex;flex-direction:column;gap:12px}.quiz-option{display:flex;gap:12px;padding:16px;border:2px solid var(--control-border);border-radius:10px;align-items:flex-start;background:#fff}.quiz-option input{margin-top:6px;width:20px;height:20px;accent-color:var(--primary)}.quiz-option:has(input:checked){border-color:var(--primary);background:var(--primary-bg)}.quiz-question.large{font-size:22px}.quiz-question.larger{font-size:26px}.quiz-question h3{font-size:1.2em}.quiz-feedback{border-left:4px solid var(--primary);padding:16px;background:var(--primary-bg);margin:16px 0}.checkpoint{display:flex;align-items:flex-start;gap:12px;min-height:48px;padding:12px;border-bottom:1px solid var(--border-color);font-size:17px}.checkpoint input{width:24px;height:24px;accent-color:var(--primary);flex-shrink:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none}.amount-korean{color:var(--primary);font-size:14px;margin-top:8px;display:block}.faq details{background:#fff;border:1px solid var(--border-color);padding:18px 20px;border-radius:12px;margin:12px 0}.faq summary{cursor:pointer;min-height:44px;font-weight:700}.faq details p{font-size:16px;margin:12px 0 0}.back-to-top{display:inline-flex;min-height:44px;align-items:center;margin-top:20px}.no-js{background:#fffbeb;color:#92400e;padding:16px;border-radius:10px}.print-only{display:none}
@media(hover:hover){.hub-card:hover,.nexus-card:hover{border-color:var(--primary-light);transform:translateY(-2px)}.library-list a:hover{background:var(--primary-bg)}.button:hover{background:#14295f;color:#fff}.button-secondary:hover{background:var(--primary-bg);color:var(--primary)}.hero .button:hover{background:#eff6ff;color:var(--primary)}}
@media(max-width:1060px){.desktop-nav{display:none}.menu-button{display:block;margin-left:auto}.header-inner{padding:12px 20px;min-height:72px}.header-search{border-left:0;padding-left:0}}
@media(max-width:600px){body{font-size:17px}.container{width:calc(100% - 32px)}h1{font-size:28px;letter-spacing:-.8px}h2{font-size:23px}h3{font-size:20px}.hero .container{padding:32px 0}.hero p{font-size:17px}.quick-access{gap:8px}.quick-access a{font-size:14px;padding:8px 10px}.card{padding:20px;margin:16px 0}.hub-card,.nexus-card{gap:12px}.icon-tile{width:44px;min-width:44px;height:44px;font-size:20px}.hub-card .arrow,.nexus-card .arrow{font-size:20px}.field{padding:14px}.calc-form-card{padding:18px}.result-header,.result-body{padding:20px}.calc-result-card{padding:0}.result-number{font-size:32px}.article-body{font-size:17px}.summary-row{flex-wrap:wrap;gap:4px}.summary-row strong{text-align:left}.button-group .button{flex:1 1 180px}.search-box{flex-direction:column}.section-heading{flex-wrap:wrap;gap:0}.header-inner{gap:12px}.brand{font-size:23px}.meta{font-size:13px}.ad-placement{margin:28px 0}.page-content{padding-top:24px}.section{margin:32px 0}.toc{padding:20px}.footer{padding:28px 0}.field label{font-size:16px}.quick-access{flex-direction:column}.quick-access a{padding:10px 14px}.hero-note{margin-top:20px}}
.fact-list{margin:0;font-size:16px}.fact-list>div{padding:12px 0;border-bottom:1px solid var(--border-color)}.fact-list>div:last-child{border-bottom:0}.fact-list dt{font-weight:800;color:var(--primary);margin-bottom:6px}.fact-list dd{margin:0;overflow-wrap:anywhere}.faq summary:focus-visible{outline:3px solid var(--primary-light);outline-offset:4px;border-radius:4px}
@media(max-width:350px){.card{padding:18px}.calc-result-card{padding:0}.field{padding:12px}.hub-card,.nexus-card{flex-wrap:wrap}.hero .button{width:100%}.brand-sub{font-size:10px}.menu-button{font-size:14px}.header-inner{padding-inline:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none;animation:none}}
@media print{.site-header,.footer,.ad-placement,.button-group,.result-actions,.menu-button{display:none}body{background:#fff;font-size:12pt}.container{width:100%;max-width:none}.card{box-shadow:none;break-inside:avoid}.print-only{display:block}a{color:#000}.hero{background:#fff;color:#000}.hero p{color:#000}}