@import "https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&family=Inter:wght@300;400;500;600;700&display=swap";[data-source=kpop]{--bg-primary:#07070d;--bg-secondary:#0d0d16;--bg-card:#12121e;--bg-card-hover:#17172a;--bg-input:#15152a;--bg-surface:#0a0a14;--text-primary:#eeeef5;--text-secondary:#9898b0;--text-muted:#555570;--accent-noun:#ff8c42;--accent-noun-dim:#cc7035;--accent-noun-glow:#ff8c421f;--accent-noun-glow-strong:#ff8c4240;--accent-verb:#4ade80;--accent-verb-dim:#38b266;--accent-verb-glow:#4ade801a;--accent-verb-glow-strong:#4ade8038;--accent-blank:#f87171;--accent-blank-glow:#f871712e;--border-color:#ffffff0f;--border-active:#ffffff1f;--border-glow-noun:#ff8c424d;--border-glow-verb:#4ade804d;--btn-primary-bg:linear-gradient(135deg, #ff8c42, #ff6b1a);--btn-primary-bg-flat:#ff8c42;--btn-primary-text:#fff;--btn-primary-shadow:0 4px 20px #ff8c424d;--btn-secondary-bg:#ffffff0a;--btn-secondary-text:#eeeef5;--btn-hover-lift:0 6px 24px #0006;--shadow-card:0 2px 12px #0006, 0 0 1px #ffffff0d;--shadow-glow-noun:0 0 30px #ff8c4214, 0 0 60px #ff8c420a;--shadow-glow-verb:0 0 30px #4ade8014, 0 0 60px #4ade800a;--shadow-header:0 1px 0 #ffffff0a, 0 4px 20px #00000080;--gradient-card-noun:linear-gradient(180deg, #ff8c420a 0%, transparent 60%);--gradient-card-verb:linear-gradient(180deg, #4ade800a 0%, transparent 60%);--gradient-page:radial-gradient(ellipse at 50% 0%, #ff8c4208 0%, transparent 60%)}[data-source=kdrama]{--bg-primary:#0d0609;--bg-secondary:#14090e;--bg-card:#1c1017;--bg-card-hover:#241520;--bg-input:#1e1018;--bg-surface:#100810;--text-primary:#f2e8ec;--text-secondary:#b09098;--text-muted:#6e5058;--accent-noun:#ff8c42;--accent-noun-dim:#cc7035;--accent-noun-glow:#ff8c421f;--accent-noun-glow-strong:#ff8c4240;--accent-verb:#4ade80;--accent-verb-dim:#38b266;--accent-verb-glow:#4ade801a;--accent-verb-glow-strong:#4ade8038;--accent-blank:#f87171;--accent-blank-glow:#f871712e;--border-color:#ffc8b40f;--border-active:#ffc8b41f;--border-glow-noun:#ff8c424d;--border-glow-verb:#4ade804d;--btn-primary-bg:linear-gradient(135deg, #d4a44c, #c0923e);--btn-primary-bg-flat:#d4a44c;--btn-primary-text:#0d0609;--btn-primary-shadow:0 4px 20px #d4a44c40;--btn-secondary-bg:#ffc8b40a;--btn-secondary-text:#f2e8ec;--btn-hover-lift:0 6px 24px #00000080;--shadow-card:0 2px 12px #00000080, 0 0 1px #ffc8b40d;--shadow-glow-noun:0 0 30px #ff8c420f, 0 0 60px #ff8c4208;--shadow-glow-verb:0 0 30px #4ade800f, 0 0 60px #4ade8008;--shadow-header:0 1px 0 #ffc8b408, 0 4px 20px #0009;--gradient-card-noun:linear-gradient(180deg, #d4a44c0a 0%, transparent 60%);--gradient-card-verb:linear-gradient(180deg, #4ade8008 0%, transparent 60%);--gradient-page:radial-gradient(ellipse at 50% 0%, #d4a44c08 0%, transparent 60%)}[data-source=custom]{--bg-primary:#080a12;--bg-secondary:#0c0e18;--bg-card:#111520;--bg-card-hover:#161b2a;--bg-input:#131828;--bg-surface:#0a0c14;--text-primary:#e2e4ef;--text-secondary:#8890a8;--text-muted:#4a5068;--accent-noun:#ff8c42;--accent-noun-dim:#cc7035;--accent-noun-glow:#ff8c421f;--accent-noun-glow-strong:#ff8c4240;--accent-verb:#4ade80;--accent-verb-dim:#38b266;--accent-verb-glow:#4ade801a;--accent-verb-glow-strong:#4ade8038;--accent-blank:#f87171;--accent-blank-glow:#f871712e;--border-color:#8296dc14;--border-active:#8296dc26;--border-glow-noun:#ff8c424d;--border-glow-verb:#4ade804d;--btn-primary-bg:linear-gradient(135deg, #6b9eff, #4a7eef);--btn-primary-bg-flat:#5b8def;--btn-primary-text:#fff;--btn-primary-shadow:0 4px 20px #5b8def40;--btn-secondary-bg:#8296dc0f;--btn-secondary-text:#e2e4ef;--btn-hover-lift:0 6px 24px #0006;--shadow-card:0 2px 12px #0006, 0 0 1px #8296dc0f;--shadow-glow-noun:0 0 30px #ff8c420f, 0 0 60px #ff8c4208;--shadow-glow-verb:0 0 30px #4ade800f, 0 0 60px #4ade8008;--shadow-header:0 1px 0 #8296dc0a, 0 4px 20px #00000080;--gradient-card-noun:linear-gradient(180deg, #5b8def0a 0%, transparent 60%);--gradient-card-verb:linear-gradient(180deg, #4ade8008 0%, transparent 60%);--gradient-page:radial-gradient(ellipse at 50% 0%, #5b8def08 0%, transparent 60%)}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;font-size:16px}body{background:var(--bg-primary);color:var(--text-primary);letter-spacing:-.01em;min-height:100vh;font-family:Inter,Noto Sans KR,system-ui,-apple-system,sans-serif;line-height:1.5;transition:background .4s,color .3s;overflow-x:hidden}body:before{content:"";background:var(--gradient-page);pointer-events:none;z-index:0;position:fixed;inset:0}#root{z-index:1;flex-direction:column;min-height:100vh;display:flex;position:relative}[lang=ko],.kr-text,.drill-sentence,.example-kr,.dict-word{font-family:Noto Sans KR,sans-serif}button{cursor:pointer;letter-spacing:inherit;border:none;font-family:inherit}input,select{letter-spacing:inherit;font-family:inherit}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-active);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{background:var(--accent-noun-glow-strong);color:var(--text-primary)}*,:before,:after{transition-property:background-color,border-color,box-shadow;transition-duration:0s}body.theme-transitioning,body.theme-transitioning *,body.theme-transitioning :before,body.theme-transitioning :after{transition-duration:.4s!important;transition-timing-function:ease!important}.lesson-card-progress{background:var(--border-color);border-radius:2px;width:100%;height:4px;margin-top:12px;overflow:hidden}.lesson-card-progress-fill{background:var(--btn-primary-bg-flat);border-radius:2px;height:100%;transition:width .4s}.lesson-card-check{background:var(--accent-verb);color:#000;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:14px;font-weight:700;display:flex;position:absolute;top:12px;right:12px}.char-grid-item{position:relative}.char-grid-badge{border-radius:50%;justify-content:center;align-items:center;width:18px;height:18px;font-size:10px;font-weight:700;display:flex;position:absolute;top:4px;right:4px}.char-grid-badge.completed{background:var(--accent-verb);color:#000}.char-grid-badge.locked{background:var(--text-muted);color:var(--bg-card);opacity:.5}.char-grid-item.locked{opacity:.4;pointer-events:none}.character-stages{max-width:600px;margin:0 auto;padding:0 20px 40px}.stages-top-bar{align-items:center;gap:16px;padding:16px 0;display:flex}.stages-char-label{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:24px;font-weight:700}.stage-indicator{flex-wrap:wrap;justify-content:center;gap:4px;margin-bottom:24px;display:flex}.stage-dot{flex-direction:column;flex:1;align-items:center;gap:4px;max-width:72px;display:flex}.stage-dot-num{background:var(--bg-card);width:32px;height:32px;color:var(--text-muted);border:2px solid var(--border-color);border-radius:50%;justify-content:center;align-items:center;font-size:13px;font-weight:600;transition:all .3s;display:flex}.stage-dot.active .stage-dot-num{background:var(--btn-primary-bg-flat);color:#fff;border-color:var(--btn-primary-bg-flat);box-shadow:0 0 16px #ff8c424d}.stage-dot.done .stage-dot-num{background:var(--accent-verb);color:#000;border-color:var(--accent-verb)}.stage-dot-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:10px}.stage-dot.active .stage-dot-label{color:var(--text-primary)}.stage-dot.done .stage-dot-label{color:var(--accent-verb-dim)}.stage-content{animation:.3s fadeSlideIn}@keyframes fadeSlideIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.stage-title{color:var(--text-primary);text-align:center;margin-bottom:4px;font-size:20px;font-weight:700}.stage-subtitle{color:var(--text-secondary);text-align:center;margin-bottom:20px;font-size:14px}.stage-continue-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);cursor:pointer;box-shadow:var(--btn-primary-shadow);border:none;border-radius:10px;margin:20px auto 0;padding:12px 32px;font-size:15px;font-weight:600;transition:all .2s;display:block}.stage-continue-btn:hover{box-shadow:var(--btn-hover-lift);transform:translateY(-1px)}.stage-btn-secondary{background:var(--btn-secondary-bg);color:var(--btn-secondary-text);border:1px solid var(--border-color);cursor:pointer;border-radius:8px;padding:8px 20px;font-size:13px;font-weight:500;transition:all .2s}.stage-btn-secondary:hover{border-color:var(--border-active);background:var(--bg-card-hover)}.stage-btn-hint{color:var(--text-muted);border:1px dashed var(--border-color);cursor:pointer;background:0 0;border-radius:6px;margin:12px auto;padding:6px 18px;font-size:13px;transition:all .2s;display:block}.stage-btn-hint:hover{color:var(--text-secondary);border-color:var(--border-active)}.stage-feedback{text-align:center;border-radius:8px;margin-top:16px;padding:10px 16px;font-size:14px;font-weight:600}.stage-feedback.correct{color:var(--accent-verb);background:#4ade801f;border:1px solid #4ade8033}.stage-feedback.wrong{color:var(--accent-blank);background:#f871711f;border:1px solid #f8717133}.stage-success{text-align:center;color:var(--accent-verb);margin-top:16px;font-size:18px;font-weight:700}.stage-intro .char-card-nav,.stage-intro .char-card-actions{display:none}.stage-trace{text-align:center}.trace-canvas-wrap{background:var(--bg-card);border:2px solid var(--border-color);width:280px;height:280px;box-shadow:var(--shadow-card);border-radius:16px;margin:0 auto 16px;position:relative;overflow:hidden}.trace-guide{pointer-events:none;-webkit-user-select:none;user-select:none;font-family:Noto Sans KR,sans-serif;font-size:180px;line-height:1;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.trace-guide.consonant{color:#f8717114}.trace-guide.vowel{color:#60a5fa14}.trace-canvas{z-index:2;cursor:crosshair;touch-action:none;width:100%;height:100%;display:block;position:relative}.trace-animation-overlay{z-index:3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009;justify-content:center;align-items:center;animation:.2s fadeIn;display:flex;position:absolute;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.trace-anim-char{font-family:Noto Sans KR,sans-serif;font-size:160px;line-height:1;animation:1.8s forwards strokeDraw}.trace-anim-char.consonant{color:#f87171}.trace-anim-char.vowel{color:#60a5fa}@keyframes strokeDraw{0%{opacity:0;transform:scale(.7)}30%{opacity:1;transform:scale(1)}70%{opacity:1;transform:scale(1)}to{opacity:.3;transform:scale(1.05)}}.trace-stroke-counter{color:var(--text-muted);margin-bottom:12px;font-size:13px}.trace-actions{justify-content:center;gap:12px;margin-bottom:8px;display:flex}.recognition-options{grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:12px;max-width:400px;margin:0 auto;display:grid}.recognition-option{background:var(--bg-card);border:2px solid var(--border-color);color:var(--text-primary);cursor:pointer;box-shadow:var(--shadow-card);text-align:center;border-radius:12px;padding:20px 12px;font-family:Noto Sans KR,sans-serif;font-size:36px;transition:all .2s}.recognition-option:hover:not(:disabled){border-color:var(--border-active);background:var(--bg-card-hover);transform:translateY(-2px)}.recognition-option.correct{border-color:var(--accent-verb);background:#4ade801a;box-shadow:0 0 20px #4ade8026}.recognition-option.wrong{border-color:var(--accent-blank);background:#f871711a;box-shadow:0 0 20px #f8717126}.recognition-option.hint-glow{border-color:var(--btn-primary-bg-flat);animation:.6s 2 hintPulse;box-shadow:0 0 24px #ff8c424d}@keyframes hintPulse{0%,to{box-shadow:0 0 8px #ff8c4233}50%{box-shadow:0 0 24px #ff8c4280}}.sound-player-wrap{flex-direction:column;align-items:center;gap:8px;margin-bottom:20px;display:flex}.sound-syllable-label{color:var(--text-muted);font-family:Noto Sans KR,sans-serif;font-size:14px}.build-result-area{justify-content:center;margin-bottom:16px;display:flex}.build-result-char{width:100px;height:100px;color:var(--text-primary);background:var(--bg-card);border:2px solid var(--border-color);box-shadow:var(--shadow-card);border-radius:16px;justify-content:center;align-items:center;font-family:Noto Sans KR,sans-serif;font-size:56px;display:flex}.build-selected{justify-content:center;gap:8px;min-height:40px;margin-bottom:16px;display:flex}.build-selected-tile{background:var(--accent-noun-glow);border:1px solid var(--accent-noun-dim);color:var(--accent-noun);border-radius:8px;padding:6px 14px;font-family:Noto Sans KR,sans-serif;font-size:20px;font-weight:600}.build-tiles{justify-content:center;gap:16px;margin-bottom:16px;display:flex}.build-tile{width:80px;height:80px;color:var(--text-primary);background:var(--bg-card);border:2px solid var(--border-color);cursor:pointer;box-shadow:var(--shadow-card);border-radius:12px;justify-content:center;align-items:center;font-family:Noto Sans KR,sans-serif;font-size:36px;transition:all .2s;display:flex}.build-tile:hover:not(:disabled){border-color:var(--accent-noun);transform:translateY(-2px)}.build-tile.used{opacity:.3;pointer-events:none}.word-practice-list{flex-direction:column;gap:16px;margin-bottom:24px;display:flex}.word-practice-card{background:var(--bg-card);border:1px solid var(--border-color);box-shadow:var(--shadow-card);border-radius:12px;flex-direction:column;align-items:flex-start;gap:4px;padding:16px 20px;display:flex}.word-practice-kr{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:28px;font-weight:600}.word-highlight.consonant{color:#f87171;text-shadow:0 0 12px #f871714d}.word-highlight.vowel{color:#60a5fa;text-shadow:0 0 12px #60a5fa4d}.word-practice-rom{color:var(--text-muted);font-size:13px}.word-practice-en{color:var(--text-secondary);font-size:14px}.word-practice-card .lantern-player{align-self:flex-end;margin-top:4px}.word-practice-card .lantern{width:36px;height:auto}.complete-btn{background:var(--accent-verb);color:#000;font-weight:700}.complete-btn:hover{background:var(--accent-verb-dim)}.learn-tabs{background:var(--bg-card);border:1px solid var(--border-color);border-radius:10px;gap:4px;width:fit-content;margin-top:16px;padding:4px;display:flex}.learn-tab{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:8px 20px;font-size:14px;font-weight:600;transition:all .2s}.learn-tab:hover{color:var(--text-secondary)}.learn-tab.active{background:var(--btn-primary-bg-flat);color:#fff;box-shadow:0 2px 8px #ff8c4240}.syllable-grid-container{padding:16px 0;position:relative}.syllable-grid-scroll{-webkit-overflow-scrolling:touch;padding-bottom:8px;overflow-x:auto}.syllable-grid-table{border-collapse:separate;border-spacing:2px;margin:0 auto}.syllable-grid-corner{z-index:3;background:var(--bg-main,#111);width:40px;min-width:40px;position:sticky;left:0}.syllable-col-header{z-index:2;text-align:center;cursor:pointer;-webkit-user-select:none;user-select:none;border:none;border-radius:6px 6px 0 0;width:42px;min-width:42px;height:36px;font-family:Noto Sans KR,sans-serif;font-size:16px;font-weight:700;transition:all .2s;position:sticky;top:0}.syllable-col-header:hover{filter:brightness(1.2)}.syllable-col-header.active{filter:brightness(1.3);transform:scale(1.05);box-shadow:0 0 12px}.syllable-row-header{z-index:2;text-align:center;color:#60a5fa;background:var(--bg-main,#111);cursor:pointer;-webkit-user-select:none;user-select:none;border:none;border-radius:6px 0 0 6px;width:40px;min-width:40px;height:40px;font-family:Noto Sans KR,sans-serif;font-size:16px;font-weight:700;transition:all .2s;position:sticky;left:0}.syllable-row-header:hover{color:#93c5fd;background:#60a5fa14}.syllable-row-header.active{color:#bfdbfe;background:#60a5fa26;box-shadow:0 0 12px #60a5fa4d}.syllable-cell{text-align:center;width:42px;min-width:42px;height:40px;color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;border:1px solid #0000;border-radius:4px;font-family:Noto Sans KR,sans-serif;font-size:15px;font-weight:500;transition:all .2s}.syllable-cell:hover{border-color:var(--col-color,var(--border-active));z-index:1;position:relative;transform:scale(1.08);background-color:color-mix(in srgb, var(--col-color,#888) 20%, transparent)!important}.syllable-cell.dimmed{opacity:.15;pointer-events:none}.syllable-cell.playing{border-color:var(--col-color,var(--accent-noun));box-shadow:0 0 14px color-mix(in srgb, var(--col-color,#ff8c42) 50%, transparent);z-index:1;position:relative;transform:scale(1.1)}.syllable-cell.completed{border-color:#4ade804d;box-shadow:0 0 8px #4ade8040}.syllable-cell:not(.completed):not(.playing):not(:hover){opacity:.8}.syllable-cell.completed:not(.dimmed){opacity:1}.syllable-tooltip{z-index:100;background:var(--bg-card,#1a1a2e);border:1px solid var(--border-color,#333);pointer-events:none;border-radius:8px;align-items:center;gap:8px;padding:6px 12px;animation:.15s fadeIn;display:flex;position:fixed;box-shadow:0 4px 16px #0006}.syllable-tooltip-char{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:20px;font-weight:700}.syllable-tooltip-rom{color:var(--text-muted);font-size:13px}@media (width<=480px){.character-stages{padding:0 12px 32px}.recognition-options{grid-template-columns:repeat(2,1fr);gap:8px}.recognition-option{padding:14px 8px;font-size:28px}.trace-canvas-wrap{width:240px;height:240px}.trace-guide{font-size:140px}.build-tile{width:64px;height:64px;font-size:28px}.build-result-char{width:80px;height:80px;font-size:44px}.stage-indicator{gap:2px}.stage-dot-num{width:26px;height:26px;font-size:11px}.stage-dot-label{font-size:9px}.syllable-col-header,.syllable-cell{width:36px;min-width:36px;font-size:13px}.syllable-col-header{height:32px;font-size:14px}.syllable-row-header{width:34px;min-width:34px;font-size:14px}.syllable-cell{height:34px}.learn-tabs{width:100%}.learn-tab{text-align:center;flex:1;padding:8px 12px;font-size:13px}}.progress-dashboard{max-width:640px;margin:0 auto;padding:2rem 1rem}.progress-dashboard h2{text-align:center;color:var(--text-primary,#f0f0f0);margin-bottom:.25rem;font-size:1.5rem}.progress-subtitle{text-align:center;color:var(--text-secondary,#888);margin-bottom:2rem;font-size:.9rem}.streak-banner{background:var(--card-bg,#ffffff0a);border:1px solid var(--border-color,#ffffff14);border-radius:12px;justify-content:center;align-items:center;gap:.75rem;margin-bottom:1.5rem;padding:1rem 1.5rem;display:flex}.streak-flame{font-size:2rem;line-height:1}.streak-info{flex-direction:column;display:flex}.streak-count{color:var(--text-primary,#f0f0f0);font-size:1.75rem;font-weight:700;line-height:1.1}.streak-label{color:var(--text-secondary,#888);text-transform:uppercase;letter-spacing:.05em;font-size:.8rem}.progress-grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;margin-bottom:1.5rem;display:grid}.progress-card{background:var(--card-bg,#ffffff0a);border:1px solid var(--border-color,#ffffff14);border-radius:10px;align-items:flex-start;gap:.75rem;padding:1rem 1.25rem;transition:border-color .2s;display:flex}.progress-card:hover{border-color:var(--accent,#ffffff26)}.progress-card-icon{flex-shrink:0;margin-top:.1rem;font-size:1.5rem;line-height:1}.progress-card-body{flex-direction:column;flex:1;min-width:0;display:flex}.progress-card-label{color:var(--text-secondary,#888);text-transform:uppercase;letter-spacing:.04em;margin-bottom:.15rem;font-size:.8rem}.progress-card-value{color:var(--text-primary,#f0f0f0);margin-bottom:.5rem;font-size:1.5rem;font-weight:700;line-height:1.2}.progress-bar-track{background:#ffffff14;border-radius:3px;width:100%;height:6px;overflow:hidden}.progress-bar-fill{border-radius:3px;height:100%;transition:width .6s}.progress-type-breakdown{gap:1rem;margin-bottom:1.5rem;display:flex}.progress-type-breakdown .progress-card{flex:1}.progress-loading,.progress-error{text-align:center;color:var(--text-secondary,#888);padding:3rem 1rem}.progress-error{color:var(--error,#e55)}.progress-empty{text-align:center;color:var(--text-secondary,#888);padding:3rem 1rem}.progress-empty p{margin:.5rem 0}.landing-container{justify-content:center;align-items:center;min-height:90vh;padding:2rem;display:flex}.landing-hero{text-align:center;max-width:520px}.landing-title{color:var(--text-primary,#fff);margin:0 0 .25rem;font-size:2.5rem;font-weight:700}.landing-title-kr{opacity:.7;font-weight:400}.landing-tagline{color:var(--text-secondary,#ffffffb3);margin:.5rem 0 2.5rem;font-size:1.1rem}.landing-features{text-align:left;flex-direction:column;gap:1.25rem;margin-bottom:2.5rem;display:flex}.landing-feature{align-items:flex-start;gap:.75rem;display:flex}.landing-feature-icon{color:var(--accent-color,#f97316);flex-shrink:0;margin-top:.1rem;font-size:1.2rem}.landing-feature h3{color:var(--text-primary,#fff);margin:0 0 .2rem;font-size:.95rem;font-weight:600}.landing-feature p{color:var(--text-secondary,#fff9);margin:0;font-size:.85rem;line-height:1.4}.landing-actions{justify-content:center;gap:.75rem;display:flex}.landing-btn{cursor:pointer;border:none;border-radius:8px;padding:.7rem 1.5rem;font-size:.95rem;font-weight:600;transition:opacity .2s}.landing-btn:hover{opacity:.9}.landing-btn-primary{background:var(--accent-color,#f97316);color:#fff}.landing-btn-secondary{color:var(--text-secondary,#ffffffb3);border:1px solid var(--border-color,#fff3);background:0 0}.auth-container{justify-content:center;align-items:center;min-height:80vh;padding:1rem;display:flex}.auth-card{background:var(--card-bg,#ffffff0d);border:1px solid var(--border-color,#ffffff1a);border-radius:12px;width:100%;max-width:400px;padding:2.5rem 2rem}.auth-title{color:var(--text-primary,#fff);margin:0 0 .25rem;font-size:1.5rem;font-weight:600}.auth-subtitle{color:var(--text-secondary,#fff9);margin:0 0 1.5rem;font-size:.9rem}.auth-form{flex-direction:column;gap:1rem;display:flex}.auth-field{flex-direction:column;gap:.35rem;display:flex}.auth-field label{color:var(--text-secondary,#fff9);text-transform:uppercase;letter-spacing:.05em;font-size:.8rem}.auth-field input{background:var(--input-bg,#ffffff14);border:1px solid var(--border-color,#ffffff26);color:var(--text-primary,#fff);border-radius:8px;outline:none;padding:.65rem .75rem;font-size:.95rem;transition:border-color .2s}.auth-field input:focus{border-color:var(--accent-color,#f97316)}.auth-field input::placeholder{color:var(--text-secondary,#ffffff59)}.auth-error{color:#ef4444;background:#ef44441a;border-radius:6px;margin:0;padding:.5rem .75rem;font-size:.85rem}.auth-submit{background:var(--accent-color,#f97316);color:#fff;cursor:pointer;border:none;border-radius:8px;margin-top:.5rem;padding:.7rem;font-size:1rem;font-weight:600;transition:opacity .2s}.auth-submit:hover:not(:disabled){opacity:.9}.auth-submit:disabled{opacity:.5;cursor:not-allowed}.auth-switch{text-align:center;color:var(--text-secondary,#fff9);margin-top:1.25rem;font-size:.85rem}.auth-link{color:var(--accent-color,#f97316);cursor:pointer;background:0 0;border:none;padding:0;font-size:.85rem;text-decoration:underline}.auth-link:hover{opacity:.8}.app{flex-direction:column;min-height:100vh;display:flex}.app-header{background:var(--bg-secondary);border-bottom:1px solid var(--border-color);height:56px;box-shadow:var(--shadow-header);z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);justify-content:space-between;align-items:center;padding:0 28px;display:flex;position:sticky;top:0}.app-title{color:var(--text-primary);letter-spacing:-.02em;align-items:center;gap:8px;font-size:18px;font-weight:700;display:flex}.app-title-kr{color:var(--text-muted);margin-left:-2px;font-family:Noto Sans KR,sans-serif;font-size:14px;font-weight:400}.app-title:before{content:"";background:var(--btn-primary-bg-flat);width:8px;height:8px;box-shadow:0 0 8px var(--btn-primary-bg-flat);border-radius:50%;display:inline-block}.header-controls{align-items:center;gap:8px;display:flex}.theme-select{appearance:none;background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239898b0' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-position:right 8px center;background-repeat:no-repeat;border-radius:8px;padding:6px 28px 6px 12px;font-size:13px;font-weight:500;transition:all .2s}.theme-select:hover{border-color:var(--border-active);color:var(--text-primary)}.theme-select:focus{border-color:var(--border-active);outline:none}.type-filter{background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:8px;gap:2px;padding:2px;display:flex}.type-filter button{color:var(--text-muted);background:0 0;border:none;border-radius:6px;padding:5px 14px;font-size:13px;font-weight:500;transition:all .2s}.type-filter button:hover{color:var(--text-secondary)}.type-filter button.active{background:var(--btn-primary-bg);color:var(--btn-primary-text);font-weight:600;box-shadow:0 1px 4px #0000004d}.sidebar-toggle{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:8px;padding:6px 14px;font-size:13px;font-weight:500;transition:all .2s;display:none}.sidebar-toggle:hover{color:var(--text-primary);border-color:var(--border-active)}.app-body{flex:1;min-height:0;display:flex}.main-content{flex:1;justify-content:center;align-items:flex-start;padding:48px 32px 64px;display:flex;overflow-y:auto}.sidebar{border-left:1px solid var(--border-color);background:var(--bg-secondary);width:320px;max-height:calc(100vh - 56px);padding:24px 20px;position:sticky;top:56px;overflow-y:auto}.card-stage{width:100%;max-width:600px}.card-stage.empty{color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:300px;font-size:16px;display:flex}.card-header{text-align:center;margin-bottom:20px}.pattern-badge{text-transform:uppercase;letter-spacing:.08em;border-radius:100px;align-items:center;gap:6px;padding:5px 14px;font-size:11px;font-weight:700;display:inline-flex}.pattern-badge.noun{background:var(--accent-noun-glow);color:var(--accent-noun);border:1px solid #ff8c4226}.pattern-badge.verb{background:var(--accent-verb-glow);color:var(--accent-verb);border:1px solid #4ade8026}.pattern-badge:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px}.pattern-en{color:var(--text-primary);letter-spacing:-.02em;margin-top:10px;font-size:20px;font-weight:600;display:block}.card-progress{color:var(--text-muted);justify-content:center;align-items:center;gap:12px;margin-bottom:28px;font-size:13px;font-weight:500;display:flex}.pass-indicator{color:var(--text-secondary);background:var(--btn-secondary-bg);border-radius:100px;padding:2px 10px;font-size:12px;font-weight:600}.shuffle-btn{background:var(--btn-secondary-bg);opacity:.6;border:1px solid var(--border-color);border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:15px;transition:all .2s;display:flex}.shuffle-btn:hover{opacity:1;border-color:var(--border-active)}.drill-display{background:var(--bg-card);border:1px solid var(--border-color);text-align:center;box-shadow:var(--shadow-card);border-radius:20px;margin-bottom:28px;padding:52px 36px 40px;position:relative;overflow:hidden}.drill-display:before{content:"";pointer-events:none;border-radius:20px;position:absolute;inset:0}.card-stage .drill-display.noun-card:before{background:var(--gradient-card-noun)}.card-stage .drill-display.verb-card:before{background:var(--gradient-card-verb)}.drill-sentence{letter-spacing:.02em;z-index:1;font-family:Noto Sans KR,sans-serif;font-size:38px;font-weight:400;line-height:1.7;position:relative}.blank-slot{min-width:80px;color:var(--accent-blank);border-bottom:3px dashed var(--accent-blank);text-shadow:0 0 20px var(--accent-blank-glow);padding:0 4px 4px;font-weight:700;animation:2s ease-in-out infinite blank-pulse;display:inline-block}@keyframes blank-pulse{0%,to{opacity:1}50%{opacity:.6}}.filled-slot{border-bottom:3px solid;padding:0 2px 4px;font-weight:700;position:relative}.filled-slot.noun{color:var(--accent-noun);border-color:var(--accent-noun);text-shadow:0 0 20px var(--accent-noun-glow-strong)}.filled-slot.verb{color:var(--accent-verb);border-color:var(--accent-verb);text-shadow:0 0 20px var(--accent-verb-glow-strong)}.token{color:var(--text-primary)}.literal-gloss{color:var(--text-muted);letter-spacing:.02em;z-index:1;margin-top:16px;font-size:15px;font-style:italic;font-weight:300;position:relative}.literal-toggle{background:var(--btn-secondary-bg);color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;border:1px solid var(--border-color);z-index:1;border-radius:100px;margin-top:10px;padding:4px 12px;font-size:11px;font-weight:600;transition:all .2s;position:relative}.literal-toggle:hover{color:var(--text-secondary);border-color:var(--border-active)}.drill-input{gap:10px;max-width:440px;margin:0 auto;display:flex}.drill-input input{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-color);border-radius:14px;outline:none;flex:1;padding:14px 20px;font-family:Noto Sans KR,sans-serif;font-size:18px;transition:all .25s;box-shadow:0 2px 8px #00000026}.drill-input input:focus{border-color:var(--border-active);box-shadow:0 2px 12px #0003, 0 0 0 3px var(--btn-secondary-bg)}.drill-input input::placeholder{color:var(--text-muted);font-weight:400}.submit-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);letter-spacing:.01em;box-shadow:var(--btn-primary-shadow);border-radius:14px;padding:14px 28px;font-size:15px;font-weight:600;transition:all .2s}.submit-btn:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:translateY(-1px)}.submit-btn:active{transform:translateY(0)}.card-result{flex-direction:column;align-items:center;gap:4px;display:flex}.card-note{background:var(--bg-card);border:1px solid var(--border-color);width:100%;color:var(--text-secondary);text-align:left;border-radius:14px;padding:16px 20px;font-size:14px;line-height:1.6}.card-note strong{color:var(--text-primary);font-weight:600}.examples{text-align:left;width:100%;margin:8px 0 20px}.examples h4{text-transform:uppercase;color:var(--text-muted);letter-spacing:.1em;margin-bottom:10px;font-size:11px;font-weight:700}.example{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;gap:3px;margin-bottom:6px;padding:12px 16px;transition:background .2s;display:flex}.example:hover{background:var(--bg-card-hover)}.example-kr{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:17px;font-weight:400}.example-en{color:var(--text-muted);font-size:13px;font-weight:400}.example-literal{color:var(--text-muted);opacity:.65;border-top:1px dashed var(--border-color);margin-top:3px;padding-top:5px;font-size:12px;font-style:italic;font-weight:300}.next-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);box-shadow:var(--btn-primary-shadow);letter-spacing:.01em;border-radius:14px;padding:14px 40px;font-size:15px;font-weight:600;transition:all .2s}.next-btn:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:translateY(-1px)}.next-btn:active{transform:translateY(0)}.rating-section{text-align:center;margin-top:20px}.rating-label{color:var(--text-muted);margin-bottom:10px;font-size:13px;font-weight:500}.rating-buttons{justify-content:center;gap:6px;display:flex}.rating-btn{border:1px solid var(--border-color);background:var(--btn-secondary-bg);max-width:90px;color:var(--text-secondary);border-radius:10px;flex:1;padding:10px 8px;font-size:13px;font-weight:700;transition:all .15s}.rating-btn:hover{box-shadow:var(--btn-hover-lift);transform:translateY(-1px)}.rating-btn:active{transform:translateY(0)}.rating-again{color:var(--accent-blank);border-color:#f8717133}.rating-again:hover{background:#f871711a}.rating-hard{color:var(--accent-noun);border-color:#ff8c4233}.rating-hard:hover{background:var(--accent-noun-glow)}.rating-good{color:var(--accent-verb);border-color:#4ade8033}.rating-good:hover{background:var(--accent-verb-glow)}.rating-easy{color:var(--text-primary);border-color:var(--border-active)}.rating-easy:hover{background:var(--btn-secondary-bg)}.card-assist-btns{justify-content:center;gap:8px;margin:8px 0 4px;display:flex}.assist-btn{background:var(--btn-secondary-bg);color:var(--text-muted);border:1px solid var(--border-color);border-radius:100px;padding:5px 16px;font-size:12px;font-weight:600;transition:all .2s}.assist-btn:hover{color:var(--text-secondary);border-color:var(--border-active)}.pronunciation-section{flex-direction:column;align-items:center;gap:8px;margin:8px 0;display:flex}.logout-btn{background:var(--btn-secondary-bg);color:var(--text-muted);border:1px solid var(--border-color);border-radius:8px;padding:5px 12px;font-size:12px;font-weight:600;transition:all .2s}.logout-btn:hover{color:var(--accent-blank);border-color:var(--accent-blank)}.paste-actions{align-items:center;gap:8px;display:flex}.paste-file-btn{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);white-space:nowrap;border-radius:10px;padding:10px 20px;font-size:14px;font-weight:600;transition:all .2s}.paste-file-btn:hover{color:var(--text-primary);border-color:var(--border-active)}.lantern-player{flex-direction:column;align-items:center;gap:6px;margin:16px 0;display:flex}.lantern{cursor:pointer;background:0 0;border:none;width:52px;height:72px;padding:0;transition:transform .3s;position:relative}.lantern:hover{transform:scale(1.08)}.lantern:disabled{cursor:default;opacity:.3;transform:none}.lantern-svg{filter:drop-shadow(0 2px 4px #0000004d);width:100%;height:100%}.lantern-hook{fill:var(--text-muted);opacity:.5}.lantern-cap{fill:var(--text-muted);opacity:.4}.lantern-tassel{stroke:var(--text-muted);stroke-width:1.5px;opacity:.4}.lantern-tassel-end{fill:var(--text-muted);opacity:.4}.lantern-char{fill:#00000080;font-family:Inter,sans-serif;font-size:13px;font-weight:700}.lantern.noun .lantern-body{fill:var(--accent-noun);opacity:.15;transition:all .4s}.lantern.verb .lantern-body{fill:var(--accent-verb);opacity:.15;transition:all .4s}.lantern.idle .lantern-body{opacity:.35}.lantern.idle:hover .lantern-body{opacity:.5}.lantern.loading .lantern-body{animation:1.2s ease-in-out infinite lantern-breathe}@keyframes lantern-breathe{0%,to{opacity:.12}50%{opacity:.35}}.lantern.playing .lantern-body{opacity:1;animation:lantern-pulse var(--pulse-duration,1.2s) ease-in-out infinite}.lantern.playing .lantern-svg{filter:drop-shadow(0 2px 4px #0000004d)}.lantern.playing.noun .lantern-svg{filter:drop-shadow(0 0 16px var(--accent-noun-glow-strong)) drop-shadow(0 0 40px var(--accent-noun-glow))}.lantern.playing.verb .lantern-svg{filter:drop-shadow(0 0 16px var(--accent-verb-glow-strong)) drop-shadow(0 0 40px var(--accent-verb-glow))}@keyframes lantern-pulse{0%,to{opacity:.7}50%{opacity:1}}.lantern-controls{align-items:center;gap:6px;display:flex}.speed-btn{background:var(--btn-secondary-bg);color:var(--text-muted);border:1px solid var(--border-color);letter-spacing:.02em;border-radius:100px;padding:3px 10px;font-size:11px;font-weight:700;transition:all .2s}.speed-btn:hover{color:var(--text-secondary);border-color:var(--border-active)}.lantern-error{color:var(--accent-blank);font-size:11px;font-weight:500}.dictionary h3{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:16px;font-size:13px;font-weight:700}.dict-filters{background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:10px;gap:2px;margin-bottom:16px;padding:3px;display:flex}.filter-btn{color:var(--text-muted);background:0 0;border:none;border-radius:8px;flex:1;padding:6px;font-size:12px;font-weight:600;transition:all .2s}.filter-btn:hover{color:var(--text-secondary)}.filter-btn.active{color:var(--text-primary);background:var(--bg-card);box-shadow:0 1px 3px #0003}.filter-btn.active.noun{background:var(--accent-noun-glow);color:var(--accent-noun)}.filter-btn.active.verb{background:var(--accent-verb-glow);color:var(--accent-verb)}.filter-btn.active.adjective{color:#60a5fa;background:#60a5fa26}.filter-btn.active.adverb{color:#f472b6;background:#f472b626}.filter-btn.active.interjection{color:#fbbf24;background:#fbbf2426}.filter-btn.active.particle{color:#a78bfa;background:#a78bfa26}.filter-btn .count{opacity:.6;margin-left:3px;font-size:11px}.dict-entries{flex-direction:column;gap:4px;display:flex}.dict-empty{color:var(--text-muted);text-align:center;padding:32px 16px;font-size:13px;font-weight:400;line-height:1.6}.dict-entry{background:var(--bg-card);border:1px solid var(--border-color);border-radius:10px;align-items:center;gap:8px;padding:10px 12px;transition:all .15s;display:flex}.dict-entry:hover{background:var(--bg-card-hover);border-color:var(--border-active)}.dict-word{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:15px;font-weight:500}.dict-type{text-transform:uppercase;letter-spacing:.06em;border-radius:100px;padding:2px 7px;font-size:9px;font-weight:700}.dict-type.noun{color:var(--accent-noun);background:var(--accent-noun-glow)}.dict-type.verb{color:var(--accent-verb);background:var(--accent-verb-glow)}.dict-type.adjective{color:#60a5fa;background:#60a5fa26}.dict-type.adverb{color:#f472b6;background:#f472b626}.dict-type.interjection{color:#fbbf24;background:#fbbf2426}.dict-type.particle{color:#a78bfa;background:#a78bfa26}.dict-base{color:var(--text-muted);margin-left:auto;font-size:12px;font-weight:400}.dict-count{color:var(--text-muted);font-size:11px;font-weight:600}.kb-wrapper{width:100%;max-width:440px;margin:0 auto;position:relative}.kb-input-row{gap:8px;margin-bottom:8px;display:flex}.kb-input-row input{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-color);border-radius:14px;outline:none;flex:1;padding:14px 20px;font-family:Noto Sans KR,sans-serif;font-size:18px;transition:all .25s;box-shadow:0 2px 8px #00000026}.kb-input-row input:focus{border-color:var(--border-active);box-shadow:0 2px 12px #0003, 0 0 0 3px var(--btn-secondary-bg)}.kb-input-row input::placeholder{color:var(--text-muted)}.kb-toggle{background:var(--btn-secondary-bg);border:1px solid var(--border-color);width:44px;height:44px;color:var(--text-muted);border-radius:12px;flex-shrink:0;justify-content:center;align-self:center;align-items:center;font-size:18px;transition:all .2s;display:flex}.kb-toggle:hover{color:var(--text-primary);border-color:var(--border-active)}.kb-toggle.active{color:var(--btn-primary-bg-flat);border-color:var(--btn-primary-bg-flat);background:var(--accent-noun-glow)}.korean-keyboard{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:14px;margin-bottom:12px;padding:8px 6px;animation:.2s ease-out kb-slide-in;box-shadow:0 4px 20px #0000004d}@keyframes kb-slide-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.kb-row{justify-content:center;gap:4px;margin-bottom:4px;display:flex}.kb-row:last-child{margin-bottom:0}.kb-key{background:var(--bg-card);border:1px solid var(--border-color);min-width:32px;height:40px;color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;border-radius:8px;flex:1;justify-content:center;align-items:center;max-width:48px;padding:0;font-family:Noto Sans KR,sans-serif;font-size:16px;font-weight:400;transition:all .1s;display:flex}.kb-key:hover{background:var(--bg-card-hover);border-color:var(--border-active)}.kb-key:active{background:var(--border-active);transform:scale(.94)}.kb-key.consonant .kb-jamo{color:var(--text-primary)}.kb-key.vowel .kb-jamo{color:var(--accent-verb)}.kb-shift{background:var(--btn-secondary-bg);max-width:52px;color:var(--text-muted)}.kb-shift.active{background:var(--accent-noun-glow);color:var(--accent-noun);border-color:var(--accent-noun)}.kb-backspace{background:var(--btn-secondary-bg);max-width:52px;color:var(--text-muted)}.kb-backspace:hover{color:var(--accent-blank)}.kb-bottom{gap:6px;margin-top:2px}.kb-space{text-transform:uppercase;letter-spacing:.1em;max-width:none;color:var(--text-muted);flex:3;font-family:Inter,sans-serif;font-size:12px;font-weight:600}.kb-enter{background:var(--btn-primary-bg);max-width:none;color:var(--btn-primary-text);letter-spacing:.02em;box-shadow:var(--btn-primary-shadow);border-color:#0000;flex:1.5;font-family:Inter,sans-serif;font-size:13px;font-weight:700}.kb-enter:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:none}.kb-enter:active{transform:scale(.97)}.nav-bar{background:var(--bg-secondary);border-top:1px solid var(--border-color);z-index:50;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);justify-content:space-around;align-items:center;height:60px;padding:0 4px;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-tab{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;background:0 0;border:none;border-radius:10px;flex-direction:column;align-items:center;gap:2px;min-width:56px;padding:6px 12px;font-size:10px;font-weight:600;transition:all .2s;display:flex}.nav-tab:hover{color:var(--text-secondary)}.nav-tab.active{color:var(--btn-primary-bg-flat)}.nav-tab.active .nav-icon{transform:scale(1.1)}.nav-icon{font-size:18px;line-height:1;transition:transform .2s}.nav-label{line-height:1}.app-body-wrapper{flex-direction:column;flex:1;min-height:0;padding-bottom:60px;display:flex}.app-body-wrapper .app-body{flex:1;min-height:0;display:flex}.app-body-wrapper.no-sidebar .main-content{flex:1}.hangul-chart-btn{background:var(--btn-secondary-bg);width:36px;height:36px;color:var(--text-secondary);border:1px solid var(--border-color);border-radius:8px;justify-content:center;align-items:center;font-family:Noto Sans KR,sans-serif;font-size:16px;font-weight:700;transition:all .2s;display:flex}.hangul-chart-btn:hover{color:var(--text-primary);border-color:var(--border-active)}.import-section{flex-direction:column;gap:24px;width:100%;max-width:720px;display:flex}.import-header{text-align:center;margin-bottom:8px}.import-title{color:var(--text-primary);margin:0 0 8px;font-size:22px;font-weight:700}.import-subtitle{color:var(--text-muted);margin:0;font-size:14px;line-height:1.6}.paste-box{flex-direction:column;gap:16px;display:flex}.paste-box-label{color:var(--text-secondary);letter-spacing:.02em;font-size:13px;font-weight:600}.paste-textarea{background:var(--bg-input);width:100%;min-height:180px;color:var(--text-primary);border:1px solid var(--border-color);resize:vertical;box-sizing:border-box;border-radius:12px;padding:16px;font-family:Noto Sans KR,sans-serif;font-size:15px;line-height:1.7;transition:border-color .2s}.paste-textarea:focus{border-color:var(--border-active);outline:none}.paste-textarea::placeholder{color:var(--text-muted);opacity:.6}.paste-textarea:disabled{opacity:.5}.paste-options{flex-wrap:wrap;align-items:flex-end;gap:20px;display:flex}.paste-source-type,.paste-source-label{flex-direction:column;gap:6px;display:flex}.paste-source-label{flex:1;min-width:180px}.paste-option-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;font-size:12px;font-weight:600}.source-type-buttons{background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:8px;gap:2px;padding:2px;display:flex}.source-type-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:5px 14px;font-size:13px;font-weight:500;transition:all .2s}.source-type-btn:hover{color:var(--text-secondary)}.source-type-btn.active{background:var(--btn-primary-bg);color:var(--btn-primary-text);font-weight:600;box-shadow:0 1px 4px #0000004d}.paste-label-input{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-color);border-radius:8px;padding:7px 12px;font-size:13px;transition:border-color .2s}.paste-label-input:focus{border-color:var(--border-active);outline:none}.paste-label-input::placeholder{color:var(--text-muted);opacity:.6}.paste-label-input:disabled{opacity:.5}.paste-submit-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);cursor:pointer;box-shadow:var(--btn-primary-shadow);border:none;border-radius:10px;align-self:flex-start;padding:10px 28px;font-size:14px;font-weight:600;transition:all .2s}.paste-submit-btn:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-1px)}.paste-submit-btn:disabled{opacity:.4;cursor:not-allowed}.import-error{color:#f87171;background:#f871711a;border:1px solid #f8717133;border-radius:10px;padding:12px 16px;font-size:13px}.import-success{color:var(--accent-verb);background:#4ade801a;border:1px solid #4ade8033;border-radius:10px;padding:12px 16px;font-size:13px;font-weight:500}.import-results{flex-direction:column;gap:16px;display:flex}.import-results-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.import-results-title{color:var(--text-primary);margin:0;font-size:16px;font-weight:600}.import-results-actions{gap:8px;display:flex}.import-select-btn{background:var(--btn-secondary-bg);color:var(--text-muted);border:1px solid var(--border-color);cursor:pointer;border-radius:6px;padding:4px 12px;font-size:12px;font-weight:500;transition:all .2s}.import-select-btn:hover{color:var(--text-secondary);border-color:var(--border-active)}.card-preview-grid{flex-direction:column;gap:12px;display:flex}.card-preview{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;padding:16px 20px;transition:all .2s}.card-preview.selected{border-color:var(--border-active)}.card-preview.rejected{opacity:.45}.card-preview-header{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.card-preview-toggle{cursor:pointer;position:relative}.card-preview-toggle input{opacity:0;width:0;height:0;position:absolute}.toggle-track{background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:10px;width:36px;height:20px;transition:all .2s;display:block;position:relative}.toggle-thumb{background:var(--text-muted);border-radius:50%;width:14px;height:14px;transition:all .2s;position:absolute;top:2px;left:2px}.card-preview-toggle input:checked+.toggle-track{border-color:var(--accent-verb);background:#4ade8033}.card-preview-toggle input:checked+.toggle-track .toggle-thumb{background:var(--accent-verb);left:18px}.card-preview-pattern{flex-direction:column;gap:2px;margin-bottom:10px;display:flex}.card-preview-en{color:var(--text-primary);font-size:15px;font-weight:600}.card-preview-kr{color:var(--text-muted);font-family:Noto Sans KR,sans-serif;font-size:13px}.card-preview-tokens{flex-wrap:wrap;gap:4px;margin-bottom:8px;display:flex}.preview-token{background:var(--btn-secondary-bg);color:var(--text-secondary);border-radius:6px;padding:3px 8px;font-family:Noto Sans KR,sans-serif;font-size:14px}.preview-token.blankable{background:var(--accent-blank-glow);color:var(--accent-blank);font-weight:600}.card-preview-example{color:var(--text-secondary);background:var(--bg-surface);border-radius:6px;margin-bottom:8px;padding:6px 10px;font-family:Noto Sans KR,sans-serif;font-size:13px}.card-preview-note{color:var(--text-muted);font-size:12px;line-height:1.5}.import-footer{justify-content:center;padding-top:8px;display:flex}.import-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);cursor:pointer;box-shadow:var(--btn-primary-shadow);border:none;border-radius:10px;padding:12px 36px;font-size:15px;font-weight:600;transition:all .2s}.import-btn:hover:not(:disabled){filter:brightness(1.1);transform:translateY(-1px)}.import-btn:disabled{opacity:.4;cursor:not-allowed}.import-empty{text-align:center;color:var(--text-muted);padding:32px 16px}.import-empty-icon{letter-spacing:4px;margin-bottom:12px;font-size:32px;display:block}.import-empty p{margin:0 0 6px;font-size:14px}.import-empty-hint{max-width:400px;margin:8px auto 0;font-size:12px;line-height:1.6}.placeholder-section{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;max-width:480px;margin:0 auto;padding:80px 32px;display:flex}.placeholder-icon{margin-bottom:8px;font-size:48px}.placeholder-section h2{color:var(--text-primary);font-size:22px;font-weight:700}.placeholder-section p{color:var(--text-muted);font-size:14px;line-height:1.6}.placeholder-badge{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:100px;margin-top:8px;padding:4px 14px;font-size:11px;font-weight:700;display:inline-block}.dictionary-full{width:100%;max-width:1000px;margin:0 auto;padding:32px 24px}.dictionary-full .dictionary-page{width:100%}.dict-page-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.dict-page-title{color:var(--text-primary);letter-spacing:-.02em;font-size:22px;font-weight:700}.dict-quiz-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);box-shadow:var(--btn-primary-shadow);border-radius:100px;padding:8px 20px;font-size:13px;font-weight:600;transition:all .2s}.dict-quiz-btn:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:translateY(-1px)}.dict-poster-section{background:#efd0a6;border:2px solid #28201899;border-radius:22px;margin-bottom:18px;padding:18px 16px 14px;box-shadow:0 8px 30px #0000002e}.dict-poster-board{grid-template-columns:minmax(180px,1fr) minmax(260px,360px) minmax(180px,1fr);align-items:stretch;gap:10px;display:grid}.dict-mini-column{grid-template-rows:repeat(5,minmax(72px,1fr));gap:8px;display:grid}.dict-mini-card{text-align:left;cursor:pointer;background:#fffdf8;border:2px solid #24201b;border-radius:8px;width:100%;padding:6px 7px;transition:transform .15s,box-shadow .15s;box-shadow:0 2px #0000002e}.dict-mini-card:hover{transform:translateY(-1px);box-shadow:0 5px #0003}.dict-mini-head{align-items:center;gap:5px;margin-bottom:5px;display:flex}.dict-mini-emoji{font-size:12px;line-height:1}.dict-mini-title{color:#1e1a15;letter-spacing:.01em;font-size:10px;font-weight:700}.dict-mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;display:grid}.dict-mini-chip{color:#3b342c;white-space:nowrap;text-overflow:ellipsis;background:#f4eee2;border-radius:4px;align-items:center;gap:3px;padding:2px 4px;font-size:9px;line-height:1.1;display:flex;overflow:hidden}.dict-cover-card{background:#f4eee3;border:8px solid #1f1d1a;border-radius:24px;flex-direction:column;justify-content:space-between;min-height:430px;padding:26px 18px 20px;display:flex;position:relative;overflow:hidden}.dict-cover-card:before{content:"";z-index:0;background-image:linear-gradient(#e0a85b80 2px,#0000 2px),linear-gradient(90deg,#e0a85b80 2px,#0000 2px);background-size:64px 64px;position:absolute;inset:0}.dict-cover-kicker,.dict-cover-title-wrap,.dict-cover-footer{z-index:1;position:relative}.dict-cover-kicker{text-transform:uppercase;letter-spacing:.09em;color:#4a4134;text-align:center;margin-bottom:18px;font-size:10px;font-weight:700}.dict-cover-title-wrap{text-align:center;background:#f2bf74;border:2px dashed #e39a3a;border-radius:34px;align-self:center;max-width:240px;padding:24px 18px 18px}.dict-cover-title{text-transform:uppercase;letter-spacing:.01em;color:#3f3a32;margin:0;font-size:34px;line-height:.98}.dict-cover-sub{color:#4a4339;letter-spacing:.03em;margin:10px 0 0;font-size:13px;font-weight:600}.dict-cover-footer{text-transform:uppercase;letter-spacing:.03em;color:#5a4f40;background:#f2bf74cc;border-radius:14px;align-self:flex-start;padding:7px 10px;font-size:12px;font-weight:700}.dict-poster-caption{text-align:center;color:#1f1a14;background:#fcf8f0;border-radius:18px;max-width:720px;margin:12px auto 0;padding:12px 20px 10px;font-size:38px;font-weight:800;line-height:1.04;box-shadow:0 2px #1e160a24}.dict-search-wrap{margin-bottom:16px}.dict-search{background:var(--bg-input);width:100%;color:var(--text-primary);border:1px solid var(--border-color);border-radius:14px;outline:none;padding:12px 18px;font-family:Noto Sans KR,Inter,sans-serif;font-size:15px;transition:all .25s;box-shadow:0 2px 8px #00000026}.dict-search:focus{border-color:var(--border-active);box-shadow:0 2px 12px #0003, 0 0 0 3px var(--btn-secondary-bg)}.dict-search::placeholder{color:var(--text-muted);font-weight:400}@media (width<=980px){.dict-poster-board{grid-template-columns:1fr}.dict-cover-card{order:-1;min-height:360px}.dict-mini-column{grid-template-rows:none;grid-template-columns:repeat(2,minmax(0,1fr))}.dict-poster-caption{font-size:28px}}@media (width<=620px){.dict-poster-section{border-radius:16px;padding:12px 10px 10px}.dict-mini-column{grid-template-columns:1fr}.dict-cover-card{border-width:6px;border-radius:16px;min-height:320px;padding:18px 12px 14px}.dict-cover-card:before{background-size:48px 48px}.dict-cover-title{font-size:28px}.dict-cover-sub{font-size:11px}.dict-cover-footer{font-size:10px}.dict-poster-caption{border-radius:12px;padding:9px 10px 8px;font-size:21px}}.dict-source-filter{background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:10px;gap:2px;margin-bottom:12px;padding:3px;display:flex}.source-pill{color:var(--text-muted);background:0 0;border:none;border-radius:8px;flex:1;justify-content:center;align-items:center;gap:6px;padding:6px 12px;font-size:12px;font-weight:600;transition:all .2s;display:flex}.source-pill:hover{color:var(--text-secondary)}.source-pill.active{color:var(--text-primary);background:var(--bg-card);box-shadow:0 1px 3px #0003}.source-count{background:var(--accent-noun-glow);color:var(--accent-noun);border-radius:100px;padding:1px 6px;font-size:10px;font-weight:700}.category-filter{scrollbar-width:thin;gap:6px;margin-bottom:16px;padding-bottom:4px;display:flex;overflow-x:auto}.category-filter::-webkit-scrollbar{height:3px}.category-pill{background:var(--btn-secondary-bg);color:var(--text-muted);border:1px solid var(--border-color);white-space:nowrap;border-radius:100px;flex-shrink:0;align-items:center;gap:5px;padding:6px 14px;font-size:12px;font-weight:600;transition:all .2s;display:flex}.category-pill:hover{color:var(--text-secondary);border-color:var(--border-active)}.category-pill.active{background:var(--btn-primary-bg);color:var(--btn-primary-text);border-color:#0000;box-shadow:0 1px 4px #0000004d}.category-emoji{font-size:14px;line-height:1}.category-label{line-height:1}.dict-count-label{color:var(--text-muted);margin-bottom:12px;font-size:12px;font-weight:500}.dict-tiles-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;display:grid}.dict-tile{background:var(--bg-card);border:1px solid var(--border-color);cursor:pointer;text-align:center;box-shadow:var(--shadow-card);border-radius:14px;flex-direction:column;align-items:center;gap:4px;padding:16px 10px 12px;transition:all .2s;display:flex;position:relative}.dict-tile:hover{background:var(--bg-card-hover);border-color:var(--border-active);transform:translateY(-2px);box-shadow:0 4px 16px #00000040}.dict-tile.personal{border-color:var(--accent-noun);border-style:dashed}.dict-star-badge{color:var(--accent-noun);filter:drop-shadow(0 0 4px var(--accent-noun-glow-strong));font-size:12px;position:absolute;top:6px;right:8px}.dict-tile-emoji{margin-bottom:2px;font-size:32px;line-height:1}.dict-tile-emoji-sm{font-size:16px;line-height:1}.dict-tile-kr{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:17px;font-weight:500}.dict-tile-en{color:var(--text-muted);font-size:12px;font-weight:400;line-height:1.3}.dict-tile-roman{color:var(--text-muted);opacity:.6;font-size:10px;font-style:italic}.dict-tile-type{text-transform:uppercase;letter-spacing:.06em;border-radius:100px;padding:1px 6px;font-size:8px;font-weight:700}.dict-tile-type.noun{color:var(--accent-noun);background:var(--accent-noun-glow)}.dict-tile-type.verb{color:var(--accent-verb);background:var(--accent-verb-glow)}.dict-tile-type.adjective{color:#60a5fa;background:#60a5fa26}.dict-tile-type.adverb{color:#f472b6;background:#f472b626}.dict-tile-type.interjection{color:#fbbf24;background:#fbbf2426}.dict-tile-type.particle{color:#a78bfa;background:#a78bfa26}.dict-pos-filter{flex-wrap:wrap;gap:6px;margin:14px 0 10px;display:flex}.pos-pill{background:var(--btn-secondary-bg);color:var(--text-muted);border:1px solid var(--border-color);border-radius:999px;padding:5px 10px;font-size:11px;font-weight:600;transition:all .2s}.pos-pill:hover{color:var(--text-secondary);border-color:var(--border-active)}.pos-pill.active{background:var(--bg-card);color:var(--text-primary)}.pos-pill.active.noun{background:var(--accent-noun-glow);color:var(--accent-noun)}.pos-pill.active.verb{background:var(--accent-verb-glow);color:var(--accent-verb)}.pos-pill.active.adjective{color:#60a5fa;background:#60a5fa26}.pos-pill.active.adverb{color:#f472b6;background:#f472b626}.pos-pill.active.interjection{color:#fbbf24;background:#fbbf2426}.pos-pill.active.particle{color:#a78bfa;background:#a78bfa26}.dict-tile-level{letter-spacing:.04em;border-radius:100px;padding:1px 6px;font-size:9px;font-weight:700}.dict-tile-level.level-1{color:var(--accent-verb);background:var(--accent-verb-glow)}.dict-tile-level.level-2{color:var(--accent-noun);background:var(--accent-noun-glow)}.dict-tile-level.level-3{color:var(--text-muted);background:var(--btn-secondary-bg)}.quiz-mode{width:100%;max-width:720px;margin:0 auto}.quiz-header{align-items:center;gap:12px;margin-bottom:20px;display:flex}.quiz-title{color:var(--text-primary);flex:1;font-size:20px;font-weight:700}.quiz-subtitle{color:var(--text-muted);margin-bottom:24px;font-size:14px}.quiz-back-btn{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:8px;padding:6px 16px;font-size:13px;font-weight:500;transition:all .2s}.quiz-back-btn:hover{color:var(--text-primary);border-color:var(--border-active)}.quiz-category-grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;display:grid}.quiz-category-card{background:var(--bg-card);border:1px solid var(--border-color);cursor:pointer;box-shadow:var(--shadow-card);border-radius:16px;flex-direction:column;align-items:center;gap:8px;padding:24px 16px;transition:all .2s;display:flex}.quiz-category-card:hover{background:var(--bg-card-hover);border-color:var(--border-active);transform:translateY(-2px);box-shadow:0 4px 16px #00000040}.quiz-cat-emoji{font-size:36px;line-height:1}.quiz-cat-label{color:var(--text-primary);font-size:14px;font-weight:600}.quiz-hint-area{margin-left:auto}.quiz-hint-btn{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:100px;padding:6px 14px;font-size:12px;font-weight:600;transition:all .2s}.quiz-hint-btn:hover:not(:disabled){color:var(--accent-noun);border-color:var(--accent-noun)}.quiz-hint-btn:disabled{opacity:.4;cursor:default}.quiz-word-bank{background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:24px;padding:16px;display:flex}.quiz-chip{background:var(--btn-secondary-bg);color:var(--text-primary);border:2px solid var(--border-color);cursor:pointer;border-radius:100px;padding:8px 18px;font-family:Noto Sans KR,sans-serif;font-size:16px;font-weight:500;transition:all .2s}.quiz-chip:hover:not(:disabled){border-color:var(--border-active);background:var(--bg-card-hover)}.quiz-chip.selected{border-color:var(--btn-primary-bg-flat);background:var(--btn-primary-bg);color:var(--btn-primary-text);box-shadow:0 0 12px var(--btn-primary-bg-flat)}.quiz-chip.used{opacity:.3;cursor:default;text-decoration:line-through}.quiz-chip.eliminated{opacity:.15;cursor:default;text-decoration:line-through}.quiz-targets{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;display:grid}.quiz-target{background:var(--bg-card);border:2px solid var(--border-color);cursor:default;text-align:center;border-radius:14px;flex-direction:column;align-items:center;gap:6px;min-height:100px;padding:20px 12px 16px;transition:all .2s;display:flex}.quiz-target.selectable{cursor:pointer}.quiz-target.selectable:hover{border-color:var(--border-active);background:var(--bg-card-hover)}.quiz-target.correct{border-color:var(--accent-verb);background:var(--accent-verb-glow)}.quiz-target.wrong{border-color:var(--accent-blank);background:#ef444414}.quiz-target-emoji{font-size:28px;line-height:1}.quiz-target-en{color:var(--text-secondary);font-size:13px;font-weight:500}.quiz-target-matched{color:var(--text-primary);margin-top:2px;font-family:Noto Sans KR,sans-serif;font-size:14px;font-weight:600}.quiz-score-card{background:var(--bg-card);border:1px solid var(--border-color);box-shadow:var(--shadow-card);border-radius:20px;flex-direction:column;align-items:center;gap:12px;margin-bottom:24px;padding:32px;display:flex}.quiz-score-circle{background:var(--btn-primary-bg);width:100px;height:100px;box-shadow:0 0 20px var(--btn-primary-bg-flat);border-radius:50%;justify-content:center;align-items:center;display:flex}.quiz-score-pct{color:var(--btn-primary-text);font-size:28px;font-weight:700}.quiz-score-text{color:var(--text-secondary);font-size:16px;font-weight:500}.quiz-perfect{color:var(--accent-verb);text-transform:uppercase;letter-spacing:.08em;font-size:14px;font-weight:700}.quiz-wrong-list{margin-bottom:24px}.quiz-wrong-list h4{text-transform:uppercase;color:var(--text-muted);letter-spacing:.1em;margin-bottom:10px;font-size:12px;font-weight:700}.quiz-wrong-item{background:var(--bg-card);border:1px solid var(--border-color);cursor:pointer;border-radius:10px;align-items:center;gap:10px;margin-bottom:6px;padding:10px 14px;transition:all .15s;display:flex}.quiz-wrong-item:hover{background:var(--bg-card-hover);border-color:var(--border-active)}.quiz-wrong-emoji{font-size:20px}.quiz-wrong-kr{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:16px;font-weight:500}.quiz-wrong-en{color:var(--text-muted);margin-left:auto;font-size:13px}.quiz-actions{justify-content:center;gap:10px;display:flex}.quiz-retry-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);box-shadow:var(--btn-primary-shadow);border-radius:14px;padding:12px 28px;font-size:15px;font-weight:600;transition:all .2s}.quiz-retry-btn:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:translateY(-1px)}.learn-section{width:100%;max-width:720px;margin:0 auto;padding:32px 24px 48px}.learn-header{margin-bottom:32px}.learn-title{color:var(--text-primary);margin-bottom:8px;font-size:24px;font-weight:700}.learn-subtitle{color:var(--text-muted);font-size:14px;line-height:1.6}.learn-loading{color:var(--text-muted);text-align:center;padding:48px 16px;font-size:14px}.lesson-grid{flex-direction:column;gap:12px;display:flex}.lesson-card{text-align:left;background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;flex-direction:column;align-items:flex-start;gap:6px;padding:20px 24px;transition:all .2s;display:flex}.lesson-card:hover{background:var(--bg-card-hover);border-color:var(--border-active);box-shadow:var(--shadow-card);transform:translateY(-1px)}.lesson-number{text-transform:uppercase;letter-spacing:.08em;color:var(--btn-primary-bg-flat);font-size:11px;font-weight:700}.lesson-card-title{color:var(--text-primary);font-size:17px;font-weight:600}.lesson-card-desc{color:var(--text-muted);font-size:13px;line-height:1.5}.lesson-card-meta{gap:12px;margin-top:4px;display:flex}.lesson-char-count,.lesson-exercise-count{color:var(--text-muted);background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:100px;padding:2px 10px;font-size:11px;font-weight:600}.lesson-char-preview{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.lesson-char-chip{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:6px;padding:2px 8px;font-family:Noto Sans KR,sans-serif;font-size:15px;font-weight:400}.lesson-char-chip.more{color:var(--text-muted);font-size:11px;font-weight:600}.lesson-view{width:100%;max-width:640px;margin:0 auto;padding:24px 24px 48px}.back-btn{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:8px;align-items:center;gap:6px;margin-bottom:20px;padding:6px 14px;font-size:13px;font-weight:500;transition:all .2s;display:inline-flex}.back-btn:hover{color:var(--text-primary);border-color:var(--border-active)}.lesson-view-header{margin-bottom:28px}.lesson-view-title{color:var(--text-primary);margin-top:4px;margin-bottom:8px;font-size:22px;font-weight:700}.lesson-view-desc{color:var(--text-muted);font-size:14px;line-height:1.6}.section-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:14px;font-size:11px;font-weight:700}.character-grid{grid-template-columns:repeat(auto-fill,minmax(72px,1fr));gap:8px;margin-bottom:20px;display:grid}.char-grid-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;align-items:center;gap:4px;padding:14px 8px;transition:all .2s;display:flex}.char-grid-item:hover{background:var(--bg-card-hover);border-color:var(--border-active);transform:translateY(-1px)}.char-grid-item.consonant .char-grid-char{color:#f87171}.char-grid-item.vowel .char-grid-char{color:#60a5fa}.char-grid-char{font-family:Noto Sans KR,sans-serif;font-size:28px;font-weight:400;line-height:1}.char-grid-rom{color:var(--text-muted);font-size:11px;font-weight:500}.start-learning-btn,.start-exercises-btn{background:var(--btn-primary-bg);width:100%;color:var(--btn-primary-text);box-shadow:var(--btn-primary-shadow);border:none;border-radius:14px;margin-top:8px;padding:14px;font-size:15px;font-weight:600;transition:all .2s;display:block}.start-learning-btn:hover,.start-exercises-btn:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:translateY(-1px)}.skip-to-exercises-btn{background:var(--btn-secondary-bg);width:100%;color:var(--text-secondary);border:1px solid var(--border-color);border-radius:12px;margin-top:8px;padding:12px;font-size:13px;font-weight:500;transition:all .2s;display:block}.skip-to-exercises-btn:hover{color:var(--text-primary);border-color:var(--border-active)}.exercises-section{margin-top:32px}.exercises-intro{color:var(--text-muted);margin-bottom:16px;font-size:14px;line-height:1.5}.character-card-view{width:100%;max-width:560px;margin:0 auto;padding:24px 24px 48px}.char-card-nav{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.char-card-progress{color:var(--text-muted);background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:100px;padding:4px 12px;font-size:13px;font-weight:600}.char-display{background:var(--bg-card);border:1px solid var(--border-color);box-shadow:var(--shadow-card);border-radius:20px;flex-direction:column;align-items:center;gap:8px;margin-bottom:24px;padding:40px 24px 32px;display:flex}.char-display.consonant .char-large{color:#f87171;text-shadow:0 0 40px #f8717133}.char-display.vowel .char-large{color:#60a5fa;text-shadow:0 0 40px #60a5fa33}.char-large{font-family:Noto Sans KR,sans-serif;font-size:96px;font-weight:400;line-height:1}.char-romanization{color:var(--text-secondary);font-size:20px;font-weight:600}.char-type-badge{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:100px;padding:3px 12px;font-size:10px;font-weight:700}.char-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:14px;margin-bottom:12px;padding:16px 20px}.char-section-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);margin-bottom:8px;font-size:11px;font-weight:700}.char-section-text{color:var(--text-secondary);font-size:14px;line-height:1.6}.char-section.phonetic-bridge{border-color:#4ade8026}.char-section.phonetic-bridge .char-section-label{color:var(--accent-verb)}.char-section.mouth-position{border-color:#ff8c4226}.char-section.mouth-position .char-section-label{color:var(--accent-noun)}.stroke-order-display{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.stroke-number{background:var(--btn-secondary-bg);width:28px;height:28px;color:var(--text-secondary);border:1px solid var(--border-color);border-radius:50%;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.stroke-hint{color:var(--text-muted);margin-left:4px;font-size:12px}.char-words{flex-direction:column;gap:8px;display:flex}.char-word-item{background:var(--bg-card-hover);border:1px solid var(--border-color);border-radius:10px;flex-direction:column;gap:2px;padding:10px 14px;display:flex}.char-word-top{align-items:baseline;gap:10px;display:flex}.char-word-kr{color:var(--text-primary);font-family:Noto Sans KR,sans-serif;font-size:18px;font-weight:500}.char-word-rom{color:var(--text-muted);font-size:12px}.char-word-en{color:var(--text-muted);font-size:13px}.char-word-item .lantern-player{flex-direction:row;gap:8px;margin:4px 0 0}.char-word-item .lantern{width:28px;height:38px}.char-card-actions{gap:10px;margin-top:24px;display:flex}.char-nav-btn{border:none;border-radius:14px;flex:1;padding:14px;font-size:14px;font-weight:600;transition:all .2s}.char-nav-btn.prev{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color)}.char-nav-btn.prev:hover{color:var(--text-primary);border-color:var(--border-active)}.char-nav-btn.next{background:var(--btn-primary-bg);color:var(--btn-primary-text);box-shadow:var(--btn-primary-shadow)}.char-nav-btn.next:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:translateY(-1px)}.exercise-view{width:100%;max-width:560px;margin:0 auto;padding:24px 24px 48px}.exercise-top-bar{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.exercise-progress{color:var(--text-muted);background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:100px;padding:4px 12px;font-size:13px;font-weight:600}.exercise-card{background:var(--bg-card);border:1px solid var(--border-color);text-align:center;box-shadow:var(--shadow-card);border-radius:20px;padding:32px 28px}.exercise-type-badge{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);background:var(--btn-secondary-bg);border:1px solid var(--border-color);border-radius:100px;margin-bottom:16px;padding:3px 12px;font-size:10px;font-weight:700;display:inline-block}.exercise-prompt{color:var(--text-primary);margin-bottom:24px;font-size:17px;font-weight:500;line-height:1.5}.exercise-options{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px;display:grid}.exercise-option{background:var(--btn-secondary-bg);color:var(--text-primary);border:2px solid var(--border-color);border-radius:14px;padding:16px 12px;font-family:Noto Sans KR,sans-serif;font-size:22px;font-weight:400;transition:all .2s}.exercise-option:hover:not(:disabled){border-color:var(--border-active);background:var(--bg-card-hover)}.exercise-option.selected{border-color:var(--btn-primary-bg-flat)}.exercise-option.correct{border-color:var(--accent-verb);background:var(--accent-verb-glow);color:var(--accent-verb)}.exercise-option.wrong{border-color:var(--accent-blank);background:var(--accent-blank-glow);color:var(--accent-blank)}.exercise-feedback{border-radius:10px;margin-bottom:16px;padding:8px 16px;font-size:15px;font-weight:600}.exercise-feedback.correct{color:var(--accent-verb);background:var(--accent-verb-glow)}.exercise-feedback.wrong{color:var(--accent-blank);background:var(--accent-blank-glow)}.exercise-next-btn{background:var(--btn-primary-bg);color:var(--btn-primary-text);box-shadow:var(--btn-primary-shadow);border:none;border-radius:14px;padding:14px 40px;font-size:15px;font-weight:600;transition:all .2s}.exercise-next-btn:hover{box-shadow:var(--btn-hover-lift), var(--btn-primary-shadow);transform:translateY(-1px)}.match-pairs-grid{justify-content:center;gap:20px;margin-bottom:20px;display:flex}.match-column{flex-direction:column;gap:8px;display:flex}.match-item{background:var(--btn-secondary-bg);border:2px solid var(--border-color);color:var(--text-primary);border-radius:12px;min-width:80px;padding:12px 20px;font-family:Noto Sans KR,sans-serif;font-size:18px;transition:all .2s}.match-item.rom{font-family:Inter,sans-serif;font-size:14px;font-weight:500}.match-item:hover:not(:disabled){border-color:var(--border-active)}.match-item.selected{border-color:var(--btn-primary-bg-flat);background:var(--accent-noun-glow)}.match-item.matched{border-color:var(--accent-verb);background:var(--accent-verb-glow);color:var(--accent-verb);opacity:.7}.exercise-complete{text-align:center;padding:48px 24px}.exercise-complete-icon{margin-bottom:16px;font-size:48px}.exercise-complete h3{color:var(--text-primary);margin-bottom:8px;font-size:22px;font-weight:700}.exercise-complete p{color:var(--text-muted);margin-bottom:24px;font-size:15px}.exercise-complete-actions{flex-direction:column;align-items:center;gap:10px;display:flex}.hangul-chart-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:200;background:#0009;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.hangul-chart{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:20px;width:100%;max-width:600px;max-height:85vh;overflow-y:auto;box-shadow:0 8px 48px #00000080}.hangul-chart-header{border-bottom:1px solid var(--border-color);background:var(--bg-secondary);z-index:1;justify-content:space-between;align-items:center;padding:16px 20px;display:flex;position:sticky;top:0}.hangul-chart-header h3{color:var(--text-primary);font-size:16px;font-weight:700}.hangul-chart-close{background:var(--btn-secondary-bg);width:32px;height:32px;color:var(--text-muted);border:1px solid var(--border-color);border-radius:8px;justify-content:center;align-items:center;font-size:20px;transition:all .2s;display:flex}.hangul-chart-close:hover{color:var(--text-primary);border-color:var(--border-active)}.hangul-chart-body{padding:20px}.chart-group{margin-bottom:20px}.chart-group-label{text-transform:uppercase;letter-spacing:.1em;margin-bottom:10px;font-size:11px;font-weight:700}.consonant-label{color:#f87171}.vowel-label{color:#60a5fa}.chart-grid{grid-template-columns:repeat(auto-fill,minmax(58px,1fr));gap:6px;display:grid}.chart-cell{background:var(--bg-card);border:1px solid var(--border-color);border-radius:10px;flex-direction:column;align-items:center;gap:2px;padding:10px 4px;transition:all .15s;display:flex}.chart-cell:hover{background:var(--bg-card-hover);border-color:var(--border-active)}.chart-cell.active{border-color:var(--btn-primary-bg-flat);box-shadow:0 0 12px #ff8c4226}.chart-cell.consonant .chart-char{color:#f87171}.chart-cell.vowel .chart-char{color:#60a5fa}.chart-char{font-family:Noto Sans KR,sans-serif;font-size:22px;font-weight:400;line-height:1}.chart-rom{color:var(--text-muted);font-size:9px;font-weight:500}.chart-detail{background:var(--bg-card);border:1px solid var(--border-color);text-align:center;border-radius:14px;margin-top:12px;padding:20px}.chart-detail-char{margin-bottom:8px;font-family:Noto Sans KR,sans-serif;font-size:48px;font-weight:400}.chart-detail-char.consonant{color:#f87171}.chart-detail-char.vowel{color:#60a5fa}.chart-detail-trick{color:var(--text-secondary);margin-bottom:6px;font-size:13px;line-height:1.5}.chart-detail-bridge{color:var(--accent-verb);margin-bottom:6px;font-size:13px;line-height:1.5}.chart-detail-mouth{color:var(--accent-noun);margin-bottom:6px;font-size:13px;line-height:1.5}.chart-detail-words{flex-wrap:wrap;justify-content:center;gap:6px;margin:8px 0;display:flex}.chart-detail-word{background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-color);border-radius:100px;padding:3px 10px;font-size:12px}.chart-detail .lantern-player{margin-top:8px}@media (width<=900px){.app-header{height:50px;padding:0 16px}.app-title{font-size:16px}.sidebar{display:none}.sidebar.open{z-index:100;border-left:1px solid var(--border-color);height:100vh;display:block;position:fixed;top:0;right:0;box-shadow:-8px 0 32px #00000080}.sidebar-toggle{display:block}.main-content{padding:32px 16px 48px}.drill-sentence{font-size:30px}.drill-display{border-radius:16px;padding:36px 24px 32px}.drill-input{flex-direction:column;max-width:100%}.submit-btn{width:100%}.character-grid{grid-template-columns:repeat(auto-fill,minmax(60px,1fr))}.char-large{font-size:72px}.exercise-options{grid-template-columns:1fr 1fr}.hangul-chart{border-radius:16px;max-height:80vh}.chart-grid{grid-template-columns:repeat(auto-fill,minmax(50px,1fr))}}@media (width<=500px){.type-filter{display:none}.drill-sentence{font-size:26px}.pattern-en{font-size:17px}.nav-tab{min-width:48px;padding:6px;font-size:9px}.nav-icon{font-size:16px}.learn-section{padding:24px 16px 48px}.character-card-view,.exercise-view,.lesson-view{padding:16px 16px 48px}.char-large{font-size:60px}.exercise-option{padding:12px 10px;font-size:18px}.match-pairs-grid{gap:10px}.match-item{min-width:60px;padding:10px 14px;font-size:16px}}.cultural-context{margin-top:12px;position:relative}.cultural-context__trigger{color:var(--text-muted);cursor:pointer;letter-spacing:.02em;opacity:.6;background:0 0;border:none;border-radius:6px;align-items:center;gap:6px;padding:4px 8px;font-size:12px;font-weight:500;transition:all .2s;display:inline-flex}.cultural-context__trigger:hover{opacity:1;background:var(--bg-card-hover,#ffffff0a);color:var(--text-secondary)}.cultural-context--open .cultural-context__trigger{opacity:1;color:var(--text-secondary)}.cultural-context__icon{opacity:.7;flex-shrink:0;transition:opacity .2s}.cultural-context__trigger:hover .cultural-context__icon{opacity:1}.cultural-context__label{white-space:nowrap}.cultural-context__body{background:var(--bg-card,#ffffff08);border:1px solid var(--border-color);border-radius:12px;margin-top:10px;padding:16px 20px;animation:.25s ease-out culturalFadeIn}@keyframes culturalFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.cultural-context__title{color:var(--text-primary);letter-spacing:-.01em;margin:0 0 8px;font-size:14px;font-weight:600}.cultural-context__text{color:var(--text-secondary);margin:0 0 10px;font-size:13px;line-height:1.65}.cultural-context__concept{color:var(--text-muted);background:var(--bg-card-hover,#ffffff0a);border-radius:6px;padding:3px 10px;font-family:Noto Sans KR,sans-serif;font-size:13px;font-weight:500;display:inline-block}.cultural-context__concept-en{color:var(--text-muted);opacity:.7;font-family:inherit;font-size:12px;font-weight:400}