:root{--surface: #ffffff;--surface-bright: #ffffff;--surface-low: #f1f4f7;--surface-container: #f1f4f7;--surface-container-high: #dee3e9;--on-surface: #0a1317;--on-surface-variant: #444950;--outline: #ced0d4;--outline-strong: #5d6c7b;--rule: #dee3e9;--border: #dee3e9;--primary: #0064e0;--primary-hover: #0457cb;--primary-soft: #d6e7fb;--primary-softer: #eef5fd;--on-primary: #ffffff;--ink-button: #0a1317;--ink-button-pressed: #444950;--on-ink-button: #ffffff;--success: #31a24c;--success-soft: #e3f3e7;--warning-fg: #8a5a14;--warning-soft: #fdf0d9;--error: #e41e3f;--error-soft: #fde3e7;--grammar-subject-bg: #eaf2fc;--grammar-subject-fg: #0457cb;--grammar-verb-bg: #e3f3e7;--grammar-verb-fg: #1e7a37;--grammar-object-bg: #fdf0d9;--grammar-object-fg: #8a5a14;--shadow-sm: 0 1px 2px rgba(10, 19, 23, .04);--shadow-md: 0 1px 4px rgba(20, 22, 26, .12);--shadow-focus: 0 0 0 3px rgba(0, 100, 224, .18);--shadow-primary: 0 1px 4px rgba(10, 19, 23, .16);--radius-sm: .375rem;--radius: .5rem;--radius-lg: 1rem;--radius-xl: 1.5rem;--radius-pill: 100px;--font-display: "Montserrat", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Segoe UI", Helvetica, Arial, sans-serif;--font-body: "Montserrat", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Segoe UI", Helvetica, Arial, sans-serif;--font-ko: "Apple SD Gothic Neo", "Noto Sans KR", -apple-system, BlinkMacSystemFont, sans-serif}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{width:100%;height:100%;overflow:hidden;background:#fff;color:var(--on-surface);font-family:var(--font-body);letter-spacing:-.01em;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}#root{width:100%;height:100%}.app{position:relative;width:100%;height:100%;overflow:hidden;background:#fff;font-family:var(--font-body)}.camera-view{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.camera-hidden{visibility:hidden}.topbar{position:absolute;top:0;left:0;right:0;padding:calc(env(safe-area-inset-top,12px) + 12px) 24px 16px;background:linear-gradient(to bottom,rgba(10,19,23,.5),transparent);display:flex;align-items:center;justify-content:space-between;z-index:10;pointer-events:none}.app-logo{display:flex;align-items:center;gap:8px;font-family:var(--font-display);font-size:16px;font-weight:600;color:#fff;letter-spacing:-.01em}.logo-icon{font-size:18px;color:var(--primary);font-weight:700}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--radius-pill);background:#ffffffeb;border:1px solid rgba(255,255,255,.6);box-shadow:var(--shadow-sm);font-family:var(--font-body);font-size:12px;font-weight:600;letter-spacing:.02em;pointer-events:auto}.status-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}.status-moving .status-dot{background:var(--outline-strong)}.status-moving{color:var(--on-surface-variant)}.status-stable .status-dot{background:var(--primary);box-shadow:0 0 0 3px #0064e02e;animation:dot-pulse .9s ease-in-out infinite}.status-stable{color:var(--primary)}@keyframes dot-pulse{0%,to{opacity:1}50%{opacity:.4}}.aim-guide{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding-bottom:160px;pointer-events:none}.aim-hint{font-family:var(--font-body);font-size:14px;font-weight:500;color:#ffffffc7;text-shadow:0 1px 8px rgba(0,0,0,.55);letter-spacing:-.005em;word-break:keep-all;text-align:center}.camera-error{position:absolute;top:84px;left:24px;right:24px;background:var(--error-soft);border:1px solid rgba(186,26,26,.2);color:var(--error);font-family:var(--font-body);font-size:13px;font-weight:500;padding:12px 16px;border-radius:var(--radius);text-align:center;z-index:20;box-shadow:var(--shadow-md)}.analyzing-overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:#0a1317db;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:30;padding:0 24px}.pulse-ring{position:absolute;width:96px;height:96px;border-radius:50%;border:2px solid rgba(0,100,224,.45);animation:pulse-ring 1.6s ease-out infinite}@keyframes pulse-ring{0%{transform:scale(.8);opacity:1}to{transform:scale(2.6);opacity:0}}.analyzing-icon{font-size:44px;color:var(--primary);font-weight:700;animation:icon-breathe 1.4s ease-in-out infinite}@keyframes icon-breathe{0%,to{transform:scale(1);opacity:1}50%{transform:scale(.9);opacity:.6}}.analyzing-title{font-family:var(--font-display);font-size:22px;font-weight:500;color:#fff;letter-spacing:-.02em}.dot-row{display:flex;gap:7px;margin-top:4px}.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);animation:dot-bounce 1.2s ease-in-out infinite}@keyframes dot-bounce{0%,80%,to{transform:translateY(0);opacity:.35}40%{transform:translateY(-7px);opacity:1}}.tip-card{position:absolute;bottom:calc(env(safe-area-inset-bottom,24px) + 32px);left:24px;right:24px;background:var(--surface-bright);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px 22px 16px;box-shadow:var(--shadow-md);animation:tip-fade-in .5s ease forwards}@keyframes tip-fade-in{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.tip-header{display:flex;align-items:center;gap:8px;margin-bottom:10px}.tip-icon{font-size:18px;line-height:1}.tip-label{font-family:var(--font-body);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--on-surface-variant)}.tip-title{font-family:var(--font-display);font-size:17px;font-weight:500;color:var(--on-surface);margin-bottom:6px;letter-spacing:-.02em}.tip-body{font-family:var(--font-body);font-size:13px;line-height:1.6;color:var(--on-surface-variant);word-break:keep-all;margin-bottom:14px}.tip-dots{display:flex;gap:5px;justify-content:center}.tip-dot{width:5px;height:5px;border-radius:50%;background:var(--border);transition:background .3s,transform .3s}.tip-dot.active{background:var(--primary);transform:scale(1.4)}.result-view{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;background:var(--surface);animation:fade-in-screen .3s ease forwards;z-index:40}@keyframes fade-in-screen{0%{opacity:0}to{opacity:1}}.result-scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:0 16px 16px}.result-topbar{display:flex;align-items:center;justify-content:space-between;padding:calc(env(safe-area-inset-top,12px) + 16px) 4px 16px;position:sticky;top:0;background:var(--surface);z-index:5;border-bottom:1px solid transparent}.topbar-right{display:flex;align-items:center;gap:10px}.result-topbar .app-logo{color:var(--on-surface)}.result-topbar .logo-icon{color:var(--primary)}.result-badge{font-family:var(--font-body);font-size:11px;font-weight:700;color:var(--success);background:var(--success-soft);border:1px solid rgba(21,128,61,.18);padding:5px 12px;border-radius:var(--radius-pill);letter-spacing:.04em}.result-bottom-spacer{height:16px}.retake-bar{flex-shrink:0;padding:12px 16px calc(env(safe-area-inset-bottom,16px) + 12px);background:linear-gradient(to top,var(--surface) 75%,rgba(255,255,255,0))}.retake-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:16px;border-radius:var(--radius-pill);background:var(--ink-button);border:none;color:var(--on-ink-button);font-family:var(--font-display);font-size:16px;font-weight:700;letter-spacing:-.16px;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background .15s,transform .12s,box-shadow .15s;box-shadow:var(--shadow-primary)}.retake-btn:active{background:var(--ink-button-pressed);transform:scale(.98)}.bilingual-list{display:flex;flex-direction:column;gap:12px;margin-top:8px}.bilingual-card{background:var(--surface-bright);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px 16px 14px;animation:item-in .35s ease forwards;opacity:0;transition:box-shadow .3s,background .3s,border-color .3s}.bilingual-card:nth-child(1){animation-delay:0s}.bilingual-card:nth-child(2){animation-delay:.06s}.bilingual-card:nth-child(3){animation-delay:.12s}.bilingual-card:nth-child(4){animation-delay:.18s}.bilingual-card:nth-child(5){animation-delay:.24s}.bilingual-card:nth-child(6){animation-delay:.3s}.bilingual-card.has-pattern{background:#fdf6e9;border-color:#f2a9184d}.bilingual-card.is-speaking{opacity:1;background:var(--primary-softer)!important;border-color:var(--primary);box-shadow:var(--shadow-focus)!important;animation:sentence-reading-pulse 1.6s ease-in-out infinite}.card-tts-row{display:flex;justify-content:flex-end;margin-bottom:10px}.card-tts-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--radius-pill);border:1px solid var(--primary-soft);background:var(--surface-bright);color:var(--primary);font-family:var(--font-body);font-size:12px;font-weight:600;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background .15s,color .15s,border-color .15s}.card-tts-btn:active,.card-tts-btn.is-speaking{background:var(--primary);border-color:var(--primary);color:var(--on-primary)}.bilingual-sentence--divider{margin-top:14px;padding-top:14px;border-top:1px solid var(--rule)}.bilingual-card.is-speaking .bilingual-sentence--divider{border-top-color:#0064e02e}.bilingual-en-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:10px}.bilingual-en{font-family:var(--font-body);font-size:17px;line-height:1.6;color:var(--on-surface);letter-spacing:-.005em;flex:1}.bilingual-card.is-speaking .bilingual-en{color:var(--primary-hover)}.bilingual-ko{font-family:var(--font-ko);font-size:16px;line-height:1.65;color:var(--on-surface-variant);word-break:keep-all;margin-bottom:12px;margin-left:32px;padding-left:12px;border-left:2px solid var(--primary-soft)}@keyframes sentence-reading-pulse{0%,to{box-shadow:0 0 0 3px #0064e033}50%{box-shadow:0 0 0 3px #0064e061}}@keyframes item-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.sentence-num{width:24px;height:24px;border-radius:50%;background:var(--primary-soft);color:var(--primary);font-family:var(--font-body);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px;transition:background .3s,color .3s,box-shadow .3s}.bilingual-card.is-speaking .sentence-num{background:var(--primary);color:var(--on-primary)}.sentence-structure{display:flex;align-items:flex-start;gap:7px;background:var(--grammar-subject-bg);border-radius:var(--radius-pill);padding:8px 14px;margin-bottom:10px;width:fit-content;max-width:100%}.structure-icon{font-family:var(--font-body);font-size:12px;font-weight:700;color:var(--grammar-subject-fg);flex-shrink:0;margin-top:1px}.structure-text{font-family:var(--font-body);font-size:13px;font-weight:600;color:var(--grammar-subject-fg);line-height:1.4;letter-spacing:-.14px}.common-pattern{display:flex;align-items:center;gap:8px;background:var(--grammar-object-bg);border-radius:var(--radius-pill);padding:7px 14px;width:fit-content;max-width:100%}.pattern-star{font-size:12px;color:var(--grammar-object-fg);flex-shrink:0}.pattern-label{font-family:var(--font-body);font-size:10px;font-weight:800;color:var(--grammar-object-fg);letter-spacing:.08em;text-transform:uppercase;flex-shrink:0}.pattern-name{font-family:var(--font-body);font-size:12px;font-weight:600;color:var(--grammar-object-fg);line-height:1.4;letter-spacing:-.14px}.pattern-example{margin-top:6px;padding:8px 14px;background:var(--grammar-object-bg);border-radius:var(--radius);max-width:100%}.pattern-example-label{display:block;font-family:var(--font-body);font-size:10px;font-weight:800;color:var(--grammar-object-fg);letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}.pattern-example-en{font-family:var(--font-body);font-size:13px;font-weight:600;color:var(--grammar-object-fg);line-height:1.5;margin:0}.pattern-example-ko{font-family:var(--font-body);font-size:12px;color:var(--grammar-object-fg);opacity:.8;line-height:1.5;margin:2px 0 0}.capture-bar{position:absolute;bottom:calc(env(safe-area-inset-bottom,20px) + 28px);left:0;right:0;display:flex;align-items:center;justify-content:center;z-index:10}.capture-btn{position:relative;width:90px;height:90px;border-radius:50%;border:none;background:transparent;cursor:pointer;-webkit-tap-highlight-color:transparent;display:flex;align-items:center;justify-content:center;padding:0;touch-action:none;-webkit-user-select:none;user-select:none}.capture-progress-svg{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;transform:rotate(-90deg);pointer-events:none}.capture-track{fill:none;stroke:#fff3;stroke-width:8}.capture-ring{fill:none;stroke:var(--primary);stroke-width:8;stroke-linecap:round;stroke-dasharray:188.5;stroke-dashoffset:188.5;filter:drop-shadow(0 0 10px rgba(0,100,224,.7))}.capture-btn.is-holding .capture-ring{animation:capture-ring-fill .5s linear forwards}@keyframes capture-ring-fill{0%{stroke-dashoffset:188.5}to{stroke-dashoffset:0}}.capture-inner{width:66px;height:66px;border-radius:50%;background:#fff;transition:transform .12s ease,background .12s ease;box-shadow:0 4px 18px #00000073}.capture-btn.is-holding .capture-inner{transform:scale(.86);background:var(--primary-softer)}.capture-btn:active .capture-inner{transform:scale(.88)}@keyframes spin{to{transform:rotate(360deg)}}.mini-spinner{display:inline-block;width:12px;height:12px;border:2px solid var(--primary-soft);border-top-color:var(--primary);border-radius:50%;animation:spin .65s linear infinite;flex-shrink:0}.streaming-row{display:flex;align-items:center;justify-content:center;gap:10px;padding:18px;background:var(--surface-low);border:1px dashed var(--primary-soft);border-radius:var(--radius);font-family:var(--font-body);font-size:13px;font-weight:500;color:var(--on-surface-variant)}.history-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-pill);background:#ffffffeb;border:1px solid rgba(255,255,255,.6);box-shadow:var(--shadow-sm);color:var(--on-surface);cursor:pointer;pointer-events:auto;-webkit-tap-highlight-color:transparent;transition:transform .12s,background .15s}.history-btn:active{transform:scale(.92);background:#fff}.result-topbar .history-btn{background:var(--surface-bright);border:1px solid var(--primary-soft);color:var(--primary)}.history-view{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;background:var(--surface);animation:fade-in-screen .3s ease forwards;z-index:40}.history-list{display:flex;flex-direction:column;gap:10px;margin-top:8px}.history-card{display:flex;align-items:stretch;gap:12px;padding:10px;background:var(--surface-bright);border:1px solid var(--border);border-radius:var(--radius-lg);cursor:pointer;-webkit-tap-highlight-color:transparent;transition:transform .12s,box-shadow .15s}.history-card:active{transform:scale(.99);box-shadow:var(--shadow-md)}.history-icon{width:44px;height:44px;flex-shrink:0;align-self:center;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--surface-low);color:var(--primary);font-size:20px;font-weight:700}.history-meta{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:3px}.history-date{font-family:var(--font-body);font-size:11px;font-weight:600;color:var(--on-surface-variant);letter-spacing:.02em}.history-preview{font-family:var(--font-body);font-size:14px;font-weight:500;color:var(--on-surface);margin:0;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.history-count{font-family:var(--font-body);font-size:11px;font-weight:600;color:var(--primary)}.history-delete{flex-shrink:0;align-self:center;display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-pill);background:transparent;border:none;color:var(--outline-strong);cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background .15s,color .15s}.history-delete:active{background:var(--surface-container);color:var(--on-surface)}.history-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:80px 24px;text-align:center;color:var(--on-surface-variant);font-family:var(--font-body);font-size:14px}.history-empty-icon{font-size:40px}.history-empty p{margin:0}.history-empty-sub{font-size:12px;color:var(--outline-strong)}