@import "https://fonts.googleapis.com/css2?family=Gowun+Batang:wght@400;700&family=Noto+Sans+KR:wght@300;400;500;600;700&display=swap";:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 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;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}body{margin:0}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}h1,h2{font-family:var(--heading);color:var(--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(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}:root{--primary:#059669;--primary-hover:#047857;--primary-light:#ecfdf5;--secondary:#0284c7;--secondary-light:#f0f9ff;--accent:#d97706;--dark:#0f172a;--gray-700:#334155;--gray-500:#64748b;--gray-300:#cbd5e1;--gray-100:#f8fafc;--white:#fff;--border-radius:12px;--box-shadow:0 4px 20px -2px #0f172a14;--font-sans:"Noto Sans KR", sans-serif;--font-serif:"Gowun Batang", serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--dark);-webkit-font-smoothing:antialiased;background-color:#f1f5f9;line-height:1.6}.app-container{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:2rem 1.5rem}.site-header{background:var(--white);z-index:100;border-bottom:1px solid #e2e8f0;position:sticky;top:0;box-shadow:0 2px 10px #00000008}.header-inner{justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:.5rem 1.5rem;display:flex;position:relative}.brand-logo{color:var(--dark);align-items:center;gap:.75rem;text-decoration:none;display:flex}.logo-badge{color:#fff;font-family:var(--font-serif);background:linear-gradient(135deg,#059669,#0d9488);border-radius:10px;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.4rem;font-weight:700;display:flex;box-shadow:0 4px 10px #05966940}.brand-text{flex-direction:column;justify-content:center;align-items:flex-start;gap:0;display:flex}.brand-text h1{letter-spacing:-.5px;color:var(--dark);margin:0;font-size:1.3rem;font-weight:700;line-height:1.1}.brand-text span{color:var(--gray-500);letter-spacing:.5px;margin-top:1px;font-size:.7rem;font-weight:600;line-height:1}.main-nav{background:var(--gray-100);border:1px solid #e2e8f0;border-radius:10px;gap:.5rem;padding:.35rem;display:flex;position:absolute;left:50%;transform:translate(-50%)}.header-actions{align-items:center;gap:.5rem;display:flex}.action-btn{color:var(--gray-700);cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:.4rem;padding:.5rem .8rem;font-size:.9rem;font-weight:500;transition:all .2s;display:flex}.action-btn:hover{background:var(--gray-100);color:var(--dark)}.nav-btn{color:var(--gray-700);cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:.4rem;padding:.6rem 1.2rem;font-size:.95rem;font-weight:600;transition:all .2s;display:flex}.nav-btn:hover{background:var(--gray-100);color:var(--primary)}.nav-btn.active{background:var(--primary-light);color:var(--primary)}.control-bar{background:var(--white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);flex-direction:column;gap:1.25rem;margin-bottom:1.5rem;padding:1.25rem 1.5rem;display:flex}.control-bar-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;display:flex}.section-title{color:var(--dark);align-items:center;gap:.5rem;font-size:1.2rem;font-weight:700;display:flex}.search-box{min-width:320px;position:relative}.search-icon{color:var(--gray-500);pointer-events:none;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.search-input{border:1.5px solid #e2e8f0;border-radius:8px;outline:none;width:100%;padding:.75rem 1rem .75rem 2.6rem;font-size:1rem;transition:all .2s}.search-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #05966926}.grade-tabs{flex-wrap:wrap;gap:.3rem;padding-bottom:4px;display:flex;overflow-x:auto}.grade-tab{background:var(--gray-100);color:var(--gray-700);cursor:pointer;white-space:nowrap;border:1px solid #e2e8f0;border-radius:6px;padding:.35rem .7rem;font-size:.85rem;font-weight:600;transition:all .2s}.grade-tab:hover{border-color:var(--primary);color:var(--primary)}.grade-tab.active{background:var(--primary);color:var(--white);border-color:var(--primary);box-shadow:0 3px 8px #0596694d}.hanja-grid-container{background:var(--white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:1.5rem}.grid-status{border-bottom:1px solid #f1f5f9;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 1rem;margin-bottom:1.25rem;padding-bottom:.75rem;display:flex}.status-text{color:var(--gray-700);white-space:nowrap;font-size:.95rem}.status-text strong{color:var(--primary)}.action-buttons{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.btn-primary{background:var(--primary);color:var(--white);cursor:pointer;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:.4rem;padding:.55rem 1rem;font-size:.88rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-secondary{background:var(--gray-100);color:var(--gray-700);border:1px solid var(--gray-300);cursor:pointer;white-space:nowrap;border-radius:8px;align-items:center;gap:.35rem;padding:.55rem .85rem;font-size:.88rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-secondary:hover{background:#e2e8f0}.btn-random{color:var(--white);cursor:pointer;white-space:nowrap;background:linear-gradient(135deg,#0284c7,#0369a1);border:none;border-radius:8px;align-items:center;gap:.4rem;padding:.55rem 1rem;font-size:.88rem;font-weight:600;transition:all .2s;display:inline-flex;box-shadow:0 3px 10px #0284c740}.btn-random:hover{background:linear-gradient(135deg,#0369a1,#075985);transform:translateY(-1px);box-shadow:0 5px 12px #0284c759}.btn-random:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.hanja-cards-row{grid-template-columns:repeat(5,1fr);gap:1.25rem;display:grid}@media (width<=900px){.hanja-cards-row{grid-template-columns:repeat(3,1fr)}}@media (width<=600px){.hanja-cards-row{grid-template-columns:repeat(2,1fr)}}.hanja-card{text-align:center;background:var(--white);transition:all .25 ease;border:1px solid #e2e8f0;border-radius:12px;flex-direction:column;justify-content:space-between;align-items:center;padding:1.2rem 1rem;display:flex;position:relative}.hanja-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:0 10px 25px -5px #05966926}.hanja-card.selected{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 2px var(--primary)}.card-check{border:1.5px solid var(--gray-300);color:#0000;cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;font-size:.75rem;transition:all .2s;display:flex;position:absolute;top:10px;right:10px}.hanja-card.selected .card-check{background:var(--primary);border-color:var(--primary);color:#fff}.hanja-char-display{font-family:var(--font-serif);color:var(--dark);margin:.5rem 0;font-size:3.2rem;font-weight:700;line-height:1}.hanja-huneum{color:var(--primary);margin-bottom:.4rem;font-size:1.1rem;font-weight:700}.hanja-meta{color:var(--gray-500);background:#f8fafc;border-radius:20px;gap:.5rem;padding:4px 10px;font-size:.8rem;display:flex}.worksheet-preview-container{margin-top:2rem}.preview-toolbar{background:var(--dark);color:#fff;border-radius:12px 12px 0 0;justify-content:space-between;align-items:center;padding:1rem 1.5rem;display:flex}.toolbar-title{align-items:center;gap:.5rem;font-size:1.1rem;font-weight:700;display:flex}.construction-card{background:var(--white);border-radius:var(--border-radius);text-align:center;box-shadow:var(--box-shadow);flex-direction:column;justify-content:center;align-items:center;padding:4rem 2rem;display:flex}.construction-icon{color:#d97706;background:#fef3c7;border-radius:50%;justify-content:center;align-items:center;width:80px;height:80px;margin-bottom:1.5rem;display:flex}.construction-card h2{margin-bottom:.5rem;font-size:1.6rem}.construction-card p{color:var(--gray-500);max-width:450px;margin-bottom:1.5rem}.badge-coming{color:#fff;background:#d97706;border-radius:20px;padding:4px 14px;font-size:.85rem;font-weight:700;display:inline-block}.site-footer{text-align:center;color:var(--gray-500);background:#fff;border-top:1px solid #e2e8f0;margin-top:3rem;padding:2rem;font-size:.85rem}.footer-links{justify-content:center;align-items:center;gap:.75rem;margin-bottom:.5rem;display:flex}.footer-btn{color:var(--gray-700);cursor:pointer;background:0 0;border:none;padding:0;font-size:.85rem;font-weight:500;transition:color .2s}.footer-btn:hover{color:var(--primary);text-decoration:underline}.footer-btn.text-bold{color:var(--dark);font-weight:700}.footer-sep{color:var(--gray-300);font-size:.75rem}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{background:var(--white);border-radius:var(--border-radius);flex-direction:column;width:90%;max-width:500px;max-height:90vh;display:flex;overflow-y:auto;box-shadow:0 10px 25px #0000001a}.modal-header{border-bottom:1px solid #e2e8f0;justify-content:space-between;align-items:center;padding:1.2rem 1.5rem;display:flex}.modal-header h2{margin:0;font-size:1.2rem}.close-btn{cursor:pointer;color:var(--gray-500);background:0 0;border:none;transition:color .2s}.close-btn:hover{color:var(--dark)}.modal-body{padding:1.5rem}.modal-footer{border-top:1px solid #e2e8f0;justify-content:flex-end;gap:.5rem;padding:1.2rem 1.5rem;display:flex}@media screen{.hidden-page{display:none!important}}@media print{.hidden-page{display:block!important}}@page{size:A4 portrait;margin:0}.a4-page{box-sizing:border-box;page-break-after:always;page-break-inside:avoid;background:#fff;flex-direction:column;justify-content:space-between;width:210mm;height:296mm;max-height:296mm;margin:0 auto 25px;padding:10mm 10mm 8mm;display:flex;overflow:hidden;box-shadow:0 8px 30px #0003}.a4-header{border-bottom:2px solid #000;justify-content:space-between;align-items:flex-end;height:38px;margin-bottom:8px;padding-bottom:6px;display:flex}.a4-title-group h2{color:#000;margin:0;font-family:Gowun Batang,Noto Sans KR,serif;font-size:17pt;font-weight:700;line-height:1.1}.a4-title-group p{color:#444;margin-top:2px;font-size:8pt}.a4-user-info{align-items:flex-end;gap:12px;font-size:9pt;font-weight:600;display:flex}.info-field{align-items:flex-end;gap:4px;line-height:1.2;display:flex}.info-line{border-bottom:1.5px solid #000;width:60px;height:0;margin-bottom:2px;display:inline-block}.worksheet-grid-6x6{box-sizing:border-box;flex:1;grid-template-rows:repeat(6,1fr);grid-template-columns:repeat(6,1fr);gap:5px;height:232mm;max-height:232mm;display:grid}.practice-box{box-sizing:border-box;background:#fff;border:1.5px solid #000;border-radius:3px;flex-direction:column;height:100%;display:flex;position:relative;overflow:hidden}.practice-square{flex:1;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative}.crosshair-h{pointer-events:none;border-top:1px dashed #cbd5e1;position:absolute;top:50%;left:0;right:0}.crosshair-v{pointer-events:none;border-left:1px dashed #cbd5e1;position:absolute;top:0;bottom:0;left:50%}.char-content{z-index:2;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;width:100%;height:100%;margin:0;padding:0;font-family:Gowun Batang,serif;font-size:46pt;font-weight:700;line-height:1;display:flex}.practice-box.stroke-guide .char-content{color:#64748b;opacity:.45}.stroke-order-svg{z-index:5;pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.stroke-number-badge{fill:#be123c;font-family:sans-serif;font-size:7.5pt;font-weight:800}.practice-box.tracing-cell .char-content{color:#cbd5e1;opacity:.9;font-size:46pt;font-weight:700}.practice-box.blank-cell .char-content{display:none}.huneum-field{text-align:center;color:#000;background:#f8fafc;border-top:1px solid #000;justify-content:center;align-items:center;height:22px;min-height:22px;padding:2px 1px;font-family:Noto Sans KR,sans-serif;font-size:9.5pt;font-weight:700;display:flex}.practice-box.tracing-cell .huneum-field span{color:#94a3b8;letter-spacing:.5px;font-size:10pt;font-weight:700}.practice-box.stroke-guide .huneum-field span{color:#000;font-size:10pt;font-weight:800}.huneum-field.blank-huneum{color:#0000;background:#fff}.a4-footer{color:#64748b;border-top:1px solid #cbd5e1;justify-content:space-between;align-items:center;height:16px;margin-top:6px;padding-top:4px;font-size:7.5pt;display:flex}@media print{html,body{background:#fff!important;width:210mm!important;height:297mm!important;margin:0!important;padding:0!important}.site-header,.control-bar,.grid-status,.action-buttons,.search-box,.site-footer,.preview-toolbar,.no-print{display:none!important}.main-content,.preview-body{background:0 0!important;max-width:100%!important;margin:0!important;padding:0!important}.a4-page{box-shadow:none!important;page-break-after:always!important;page-break-inside:avoid!important;width:210mm!important;height:296mm!important;margin:0 auto!important;padding:10mm 10mm 8mm!important}}