:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;background:#f4f6f8;font-family:Inter,Pretendard,Noto Sans KR,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}html{background:#f4f6f8;min-height:100%}.review-mode-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;display:grid}.rating-buttons{grid-template-columns:repeat(4,minmax(92px,1fr));gap:.5rem;width:100%;display:grid}.rating-buttons button{flex-direction:column;justify-content:center;align-items:center;gap:.2rem;min-height:3.4rem;display:flex}.rating-buttons small{font-size:.72rem;font-weight:500}.compact-number-field input{max-width:10rem}@media (width<=620px){.rating-buttons{grid-template-columns:repeat(2,minmax(100px,1fr))}}*{box-sizing:border-box}body{overscroll-behavior-y:contain;min-width:320px;min-height:100dvh;margin:0;overflow-x:hidden}button{color:#fff;min-height:44px;font:inherit;cursor:pointer;background:#2855c7;border:0;border-radius:10px;padding:.7rem 1rem;font-weight:700}button:hover:not(:disabled){background:#1f46aa}button:focus-visible{outline-offset:2px;outline:3px solid #f4b63c}button:disabled{cursor:not-allowed;opacity:.55}h1,h2,p{margin-top:0}h1{margin-bottom:0;font-size:clamp(1.4rem,4vw,1.9rem)}h2{margin-bottom:.75rem;font-size:clamp(1.2rem,3vw,1.5rem)}.app-shell{width:min(100%,880px);min-height:100dvh;padding-bottom:env(safe-area-inset-bottom,0);background:#fff;margin:0 auto;box-shadow:0 0 40px #17203314}.app-header{padding:max(1.25rem, env(safe-area-inset-top,0px)) max(clamp(1rem, 4vw, 2rem), env(safe-area-inset-right,0px)) 1.25rem max(clamp(1rem, 4vw, 2rem), env(safe-area-inset-left,0px));border-bottom:1px solid #e4e8ef;justify-content:space-between;align-items:center;gap:1rem;display:flex}.eyebrow{color:#5c6780;letter-spacing:.08em;text-transform:uppercase;margin-bottom:.25rem;font-size:.78rem;font-weight:800}.status-badge{color:#17633b;background:#e6f6ed;border-radius:999px;flex:none;padding:.35rem .65rem;font-size:.8rem;font-weight:800}.primary-nav{background:#fff;border-bottom:1px solid #e4e8ef;grid-template-columns:repeat(5,minmax(0,1fr));display:grid}.nav-button{color:#5c6780;background:#fff;border-radius:0;min-width:0;padding-inline:.45rem}.nav-button:hover:not(:disabled){color:#172033;background:#f6f8fc}.nav-button.active{color:#214bb5;background:#eef3ff;box-shadow:inset 0 -3px #2855c7}.page-content{padding:clamp(1rem, 4vw, 2rem) max(clamp(1rem, 4vw, 2rem), env(safe-area-inset-right,0px)) max(clamp(1rem, 4vw, 2rem), env(safe-area-inset-bottom,0px)) max(clamp(1rem, 4vw, 2rem), env(safe-area-inset-left,0px));gap:1.5rem;display:grid}.page-loading{color:#5c6780;text-align:center;min-height:12rem;padding:2rem}.pwa-status-panel{padding:.7rem max(1rem, env(safe-area-inset-right,0px)) .7rem max(1rem, env(safe-area-inset-left,0px));color:#29405f;background:#f4f7fc;border-bottom:1px solid #d7dfed;gap:.55rem;font-size:.9rem;display:grid}.pwa-status-row{justify-content:space-between;align-items:center;gap:.75rem;display:flex}.pwa-status-row p{color:#5d6980;margin:.25rem 0 0}.pwa-status-actions{flex:none;gap:.5rem;display:flex}.offline-badge{color:#684b0a;background:#fff1c7;border-radius:999px;flex:none;padding:.3rem .6rem;font-weight:800}.origin-notice{color:#354a72;background:#f0f4fc;border-left:4px solid #6f8fd8;padding:.75rem .9rem}.page-title-row,.detail-header,.word-detail-title,.filter-row,.action-row,.form-actions,.sense-actions,.order-actions,.summary-badges{align-items:center;gap:.75rem;display:flex}.page-title-row,.detail-header,.sense-actions{justify-content:space-between}.page-title-row h2,.word-detail-title h2{margin-bottom:0}.hero-actions{margin-top:1rem}.hero-card,.notice-card,.editor-card,.filter-card{background:#f9fbff;border:1px solid #dce3ef;border-radius:16px;padding:clamp(1.1rem,4vw,1.6rem)}.editor-card,.filter-card{background:#fff}.form-section{border-top:1px solid #e4e8ef;margin-top:1.5rem;padding-top:1.5rem}.form-grid{grid-template-columns:1fr 1fr;gap:1rem;display:grid}.field-group{align-content:start;gap:.4rem;display:grid}.field-group.full-width{grid-column:1/-1}.field-group label{color:#38455d;font-size:.92rem;font-weight:750}input,select,textarea{color:#172033;width:100%;font:inherit;background:#fff;border:1px solid #bac4d4;border-radius:9px;padding:.72rem .8rem}input:not([type=checkbox]):not([type=radio]),select{min-height:44px}textarea{resize:vertical;line-height:1.5}input:focus,select:focus,textarea:focus{border-color:#2855c7;outline:3px solid #2855c726}.field-help{color:#69748a;margin:0;font-size:.83rem}.form-actions{justify-content:flex-end;margin-top:1.25rem}.split-actions{justify-content:space-between}.compact-heading{align-items:center}.compact-heading h3{margin:0}.optional-badge,.unsaved-badge,.archive-badge,.enrichment-badge{white-space:nowrap;border-radius:999px;align-items:center;padding:.25rem .55rem;font-size:.76rem;font-weight:800;display:inline-flex}.optional-badge{color:#566076;background:#eef1f5}.unsaved-badge{color:#754e00;background:#fff0c7}.archive-badge{color:#515a6c;background:#e6e9ee}.enrichment-badge{color:#744000;background:#ffedcf}.warning-panel,.error-message,.success-message{border-radius:10px;padding:.9rem 1rem}.cloud-recovery-panel{border-top:1px solid #d9deea;gap:1rem;margin-top:1.25rem;padding-top:1.25rem;display:grid}.cloud-recovery-panel h3,.cloud-recovery-panel h4{margin:0}.conflict-list{gap:.8rem;display:grid}.conflict-card,.manual-merge-panel,.generation-recovery-panel{background:#fff;border:1px solid #d9deea;border-radius:10px;gap:.8rem;padding:1rem;display:grid}.conflict-compare{grid-template-columns:repeat(2,minmax(0,1fr));gap:.7rem;display:grid}.conflict-compare>div{background:#f5f7fa;border-radius:8px;padding:.75rem}.manual-merge-panel fieldset{border:1px solid #d9deea;border-radius:8px;gap:.5rem;padding:.7rem;display:grid}.manual-merge-panel label{align-items:flex-start;gap:.5rem;display:flex}@media (width<=640px){.conflict-compare{grid-template-columns:1fr}}.warning-panel{color:#634200;background:#fff8e7;border:1px solid #e4b44e;margin-top:1rem}.warning-panel p{margin:.4rem 0 .8rem}.error-message{color:#812727;background:#fff0f0;border:1px solid #e7aaaa;margin:1rem 0 0}.success-message{color:#185a37;background:#eaf8f0;border:1px solid #9bd0b2;justify-content:space-between;align-items:center;gap:1rem;display:flex}.archive-button{color:#6e3434;background:#f5e8e8}.archive-button:hover:not(:disabled){color:#fff;background:#9a3c3c}.text-button{color:#2855c7;background:0 0;min-height:36px;padding:.35rem 0}.text-button:hover:not(:disabled){color:#193d99;background:0 0;text-decoration:underline}.filter-card{gap:1rem;display:grid}.filter-row{justify-content:space-between;align-items:end}.filter-row .field-group{min-width:min(100%,220px)}.checkbox-field{align-items:center;gap:.55rem;min-height:44px;font-weight:700;display:flex}.checkbox-field input{width:20px;height:20px}.result-summary{color:#69748a;margin-bottom:.75rem;font-size:.9rem}.word-list,.sense-list{gap:.8rem;display:grid}.word-list-item{color:#172033;text-align:left;background:#fff;border:1px solid #dce2eb;border-radius:10px;grid-template-columns:48px minmax(0,1fr);gap:0;width:100%;padding:0;display:grid;overflow:hidden}.word-list-item.no-handle{grid-template-columns:minmax(0,1fr)}.word-list-item:hover{border-color:#97ace1}.word-list-item.dragging{z-index:2;border-color:#2855c7;box-shadow:0 8px 20px #1720332e}.word-list-open{color:#172033;text-align:left;background:#fff;border-radius:0;grid-template-columns:minmax(0,1fr) auto;gap:1rem;width:100%;min-width:0;padding:1rem;display:grid}.word-list-open:hover:not(:disabled){color:#172033;background:#f7f9ff}.drag-handle{color:#52617a;cursor:grab;touch-action:none;-webkit-user-select:none;user-select:none;background:#f4f6fa;border-right:1px solid #e2e7ef;border-radius:0;min-width:48px;padding:0}.drag-handle:hover:not(:disabled){color:#214bb5;background:#eaf0ff}.drag-handle:active:not(:disabled){cursor:grabbing}.word-list-main,.word-list-meta{gap:.4rem;min-width:0;display:grid}.word-list-heading{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.word-list-heading>strong{font-size:1.2rem}.tag-summary{color:#31569d;overflow-wrap:anywhere}.word-list-meta{color:#69748a;justify-items:end;font-size:.82rem}.empty-state{color:#5c6780;text-align:center;border:1px dashed #c8d0dc;border-radius:12px;padding:2rem 1rem}.empty-state h3{color:#364158;margin-top:0}.empty-state p{margin-bottom:0}.detail-header{align-items:end}.sense-card{background:#fff;border:1px solid #dce2eb;border-radius:13px;overflow:hidden}.sense-card.archived{background:#f6f7f9}.sense-card>summary{cursor:pointer;justify-content:space-between;align-items:center;gap:1rem;padding:1rem;font-weight:800;display:flex}.sense-card>summary::marker{color:#2855c7}.sense-editor-body{border-top:1px solid #e7ebf1;padding:1rem}.learning-section{background:#fbfcfe;border:1px solid #dce3ef;border-radius:12px;margin-top:1rem}.learning-section>summary{color:#263755;cursor:pointer;justify-content:space-between;gap:1rem;padding:.9rem 1rem;font-weight:800;display:flex}.learning-section-body{border-top:1px solid #e4e8ef;gap:.9rem;padding:1rem;display:grid}.material-editor{background:#fff;border:1px solid #d7deea;border-radius:10px;padding:1rem}.material-editor.archived{background:#f3f4f6}.image-editor{background:#fff;border:1px solid #d7deea;border-radius:10px;grid-template-columns:minmax(140px,220px) minmax(0,1fr);gap:1rem;padding:1rem;display:grid}.image-editor.archived{background:#f3f4f6}.image-preview-column,.image-editor-fields{align-content:start;gap:.75rem;display:grid}.sense-image-thumbnail,.sense-image-large{object-fit:contain;background:#eef1f5;border:1px solid #dce2eb;border-radius:9px;max-width:100%;height:auto;display:block}.sense-image-thumbnail{width:100%;max-height:220px}.sense-image-large-view{border-top:1px solid #e4e8ef;grid-column:1/-1;padding-top:1rem}.sense-image-large{max-height:75vh;margin:0 auto}.image-actions{justify-content:space-between;align-items:end;gap:.75rem;display:flex}.material-playback-row{margin-top:.8rem}.primary-badge,.verified-badge{color:#17633b;background:#e6f6ed;border-radius:999px;margin-top:.5rem;padding:.25rem .55rem;font-size:.76rem;font-weight:800;display:inline-flex}.sense-learning-materials{border-top:1px solid #e7ebf1;padding:0 1rem 1rem}.review-setting-list{gap:.75rem;display:grid}.review-setting-row{background:#fff;border:1px solid #dce3ef;border-radius:10px;justify-content:space-between;align-items:flex-start;gap:1rem;padding:.9rem;display:flex}.review-setting-copy{gap:.35rem;min-width:0;display:grid}.review-setting-copy p{margin:0}.review-source-warning{color:#8a4d00;font-size:.85rem}.review-source-choice{margin-top:.35rem}.review-toggle{white-space:nowrap;align-items:center;gap:.45rem;min-width:104px;font-weight:800;display:flex}.review-toggle input{width:22px;height:22px}.practice-card{background:#fbfcff;border:1px solid #cddafe;border-radius:16px;padding:clamp(1.1rem,4vw,1.8rem)}.practice-progress{color:#667289;justify-content:space-between;gap:1rem;font-size:.85rem;display:flex}.practice-prompt{text-align:center;place-items:center;min-height:230px;padding:2rem 0;display:grid}.practice-word-prompt,.practice-cloze{margin:0;font-size:clamp(1.65rem,6vw,2.6rem);font-weight:850;line-height:1.45}.practice-sense-cue{color:#59667c;margin:.4rem 0 0;font-size:.95rem;font-weight:650}.practice-instruction{color:#46536b}.practice-image{object-fit:contain;border:1px solid #d7deea;border-radius:12px;width:auto;max-width:min(100%,520px);max-height:48vh;margin:1rem auto;display:block}.practice-hints,.practice-answer{border-top:1px solid #dce3ef;margin-top:1rem;padding-top:1rem}.practice-hints p,.practice-answer-fields p{margin-bottom:.65rem}.practice-answer-word{font-size:1.8rem;font-weight:850}.korean-answer{color:#526078;border-top:1px dashed #cfd7e4;margin-top:1rem;padding-top:.8rem}.sense-actions{align-items:end;margin-top:1rem}.new-sense-card{background:#f9fbff;border-color:#9db3e8;margin-bottom:1rem}.hero-card{background:linear-gradient(135deg,#eef3ff,#fbfcff);border-color:#cddafe}.hero-card p:last-child,.notice-card p:last-child{margin-bottom:0}.section-heading{justify-content:space-between;align-items:end;gap:1rem;margin-bottom:.8rem;display:flex}.section-heading h2{margin-bottom:0}.secondary-button{color:#274171;background:#e9eef7;min-height:38px;padding:.5rem .8rem;font-size:.9rem}.secondary-button:hover:not(:disabled){background:#dbe4f2}.metric-grid{grid-template-columns:repeat(4,1fr);gap:.75rem;display:grid}.metric-card{background:#fff;border:1px solid #e1e6ee;border-radius:12px;gap:.45rem;min-width:0;padding:1rem;display:grid}.metric-card span{color:#69748a;overflow-wrap:anywhere;font-size:.83rem}.metric-card strong{font-size:1.65rem}.settings-list{background:#fff;border:1px solid #e1e6ee;border-radius:12px;margin:0}.settings-list div{grid-template-columns:minmax(130px,1fr) minmax(0,1.4fr);gap:1rem;padding:.85rem 1rem;display:grid}.settings-list div+div{border-top:1px solid #edf0f4}.settings-list dt{color:#677187}.settings-list dd{overflow-wrap:anywhere;margin:0;font-weight:700}.settings-list.compact{margin:1rem 0}.inline-message{color:#23416f;background:#eaf0fb;border-radius:8px;margin:.8rem 0 0;padding:.75rem}.backup-status-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin:1rem 0;display:grid}.backup-status-grid>div{background:#f8fafc;border:1px solid #e1e6ee;border-radius:10px;padding:.9rem}.backup-status-grid p{margin:.35rem 0 0}.backup-reminder{color:#694c0c;background:#fff8e5;border-left:4px solid #d39a22;padding:.75rem .9rem}.backup-actions{justify-content:flex-start}.cloud-auth-form,.cloud-account-status{gap:1rem;display:grid}.cloud-bootstrap-section{border-top:1px solid #e1e6ee;padding-top:1rem}.cloud-bootstrap-section h3,.bootstrap-preview h4{margin-top:0}.bootstrap-preview{background:#f8fafc;border:1px solid #d8e0ed;border-radius:12px;margin-top:1rem;padding:1rem}.bootstrap-preview>button+button{margin-left:.6rem}.cloud-auth-actions{justify-content:flex-start;margin-top:0}.backup-file-field{margin-top:1.25rem}.restore-preview{border-top:1px solid #e1e6ee;margin-top:1rem;padding-top:1rem}.restore-preview h3{margin-top:0}.muted{color:#69748a;margin-top:1rem;font-size:.9rem}.centered-state{text-align:center;align-content:center;place-items:center;gap:1rem;width:min(100% - 2rem,640px);min-height:100vh;margin:0 auto;display:grid}.centered-state p{max-width:560px;margin-bottom:0}.spinner{border:4px solid #dce4f5;border-top-color:#2855c7;border-radius:50%;width:36px;height:36px;animation:.8s linear infinite spin}.error-state{align-content:center}.error-mark{color:#842626;background:#ffe8e8;border-radius:50%;place-items:center;width:52px;height:52px;font-size:1.6rem;font-weight:900;display:grid}.error-state details{text-align:left;border:1px solid #e1e6ee;border-radius:10px;width:100%;padding:.75rem}.error-state code{overflow-wrap:anywhere;white-space:pre-wrap;margin-top:.75rem;display:block}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=640px){.primary-nav{z-index:5;padding-right:env(safe-area-inset-right,0);padding-left:env(safe-area-inset-left,0);grid-template-columns:repeat(5,minmax(0,1fr));position:sticky;top:0}.nav-button{min-height:52px;padding:.55rem .2rem;font-size:.78rem;line-height:1.25}.pwa-status-row,.pwa-status-row.update-row{flex-direction:column;align-items:stretch}.pwa-status-actions{grid-template-columns:repeat(2,minmax(0,1fr));width:100%;display:grid}.metric-grid{grid-template-columns:1fr 1fr}.backup-status-grid{grid-template-columns:1fr}.cloud-auth-actions>button,.cloud-account-status>button,.bootstrap-preview>button{width:100%}.bootstrap-preview>button+button{margin-top:.6rem;margin-left:0}.app-header{align-items:start}.settings-list div{grid-template-columns:1fr;gap:.25rem}.form-grid{grid-template-columns:1fr}.field-group.full-width{grid-column:auto}.page-title-row,.detail-header,.filter-row,.sense-actions{flex-direction:column;align-items:stretch}.page-title-row>button,.detail-header>button,.form-actions>button,.split-actions>button,.image-actions>button{width:100%}.image-editor{grid-template-columns:1fr}.image-actions{flex-direction:column;align-items:stretch}.review-setting-row,.practice-progress{flex-direction:column}.practice-card{padding:1rem}.practice-prompt{min-height:190px;padding:1.25rem 0}.practice-image{max-height:min(46vh,420px)}.word-list-item{grid-template-columns:48px minmax(0,1fr)}.word-list-item.no-handle,.word-list-open{grid-template-columns:1fr}.word-list-meta{justify-items:start}.sense-card>summary{flex-direction:column;align-items:flex-start}input[type=file]{max-width:100%;overflow:hidden}}@media (prefers-reduced-motion:reduce){.spinner{animation:none}}