:root{--font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", "Noto Serif", serif;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;--radius-lg: 18px;--radius: 13px;--radius-sm: 9px;--max-width: 720px;--ease: cubic-bezier(.22, .61, .36, 1)}:root[data-theme=light]{--bg: #fff7e3;--bg-elevated: #ffffff;--bg-card: #ffffff;--bg-inset: #fdf1d4;--text: #35270d;--text-soft: #6b5334;--text-faint: #9c8259;--border: #f0e2bd;--border-strong: #e6d29a;--accent: #a5720a;--accent-hover: #895e07;--accent-soft: #fdeec4;--accent-contrast: #ffffff;--collins: #1f8a63;--collins-bg: #e4f6ee;--longman: #2f6bb0;--longman-bg: #e7f0fb;--danger: #c0472f;--danger-bg: #fceae5;--gold: #d99a1a;--gold-bg: #fdefc9;--level-beginner: #3a9b5a;--level-beginner-bg: #e5f7ea;--level-intermediate: #d99a1a;--level-intermediate-bg: #fdefc9;--level-advanced: #a24a86;--level-advanced-bg: #fbe9f4;--shadow-sm: 0 1px 2px rgba(120, 85, 20, .08);--shadow: 0 2px 4px rgba(120, 85, 20, .06), 0 8px 22px -8px rgba(120, 85, 20, .16);--shadow-lg: 0 3px 8px rgba(120, 85, 20, .08), 0 20px 46px -12px rgba(120, 85, 20, .24);--header-bg: rgba(255, 247, 227, .9);--tabbar-bg: rgba(255, 255, 255, .94);--focus-ring: rgba(176, 125, 10, .35)}:root[data-theme=dark]{--bg: #1d1608;--bg-elevated: #241b0c;--bg-card: #261c0d;--bg-inset: #2f230f;--text: #f7ecd2;--text-soft: #cdb68e;--text-faint: #96805c;--border: #3d2f14;--border-strong: #503f1a;--accent: #d9a227;--accent-hover: #e6b246;--accent-soft: #3d2f10;--accent-contrast: #1d1608;--collins: #74c7a3;--collins-bg: #22332b;--longman: #8db4e4;--longman-bg: #222c39;--danger: #df8d81;--danger-bg: #392722;--gold: #e8b83f;--gold-bg: #3d2f10;--level-beginner: #7ac48a;--level-beginner-bg: #22301f;--level-intermediate: #e8b83f;--level-intermediate-bg: #3d2f10;--level-advanced: #d68fbb;--level-advanced-bg: #362430;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);--shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -8px rgba(0, 0, 0, .5);--shadow-lg: 0 2px 6px rgba(0, 0, 0, .35), 0 20px 48px -12px rgba(0, 0, 0, .65);--header-bg: rgba(29, 22, 8, .86);--tabbar-bg: rgba(38, 28, 13, .92);--focus-ring: rgba(217, 162, 39, .4)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-serif);background:var(--bg);color:var(--text);line-height:1.65;font-size:16.5px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background .3s var(--ease),color .3s var(--ease)}#root{min-height:100vh;display:flex;flex-direction:column}::selection{background:var(--accent-soft)}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:2.5px}:where(button,input,select,textarea,[role=button]):focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.app-shell{flex:1;display:flex;flex-direction:column;width:100%;max-width:var(--max-width);margin:0 auto;padding:0 18px calc(92px + env(safe-area-inset-bottom,0px))}.app-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 -18px;padding:14px 20px 12px;background:var(--header-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.app-brand{display:flex;align-items:center;gap:11px;min-width:0}.app-brand h1{font-size:1.32rem;font-weight:700;margin:0;letter-spacing:-.01em;line-height:1.15}.app-brand .tagline{display:block;font-family:var(--font-sans);font-size:.68rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--text-faint);margin-top:1px}.icon-button{background:var(--bg-card);border:1px solid var(--border);color:var(--text-soft);border-radius:50%;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;flex:none;transition:background .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease),transform .1s var(--ease)}.icon-button:hover{background:var(--bg-inset);color:var(--text);border-color:var(--border-strong)}.icon-button:active{transform:scale(.94)}main{padding-top:20px}.tab-bar{position:fixed;bottom:0;left:0;right:0;background:var(--tabbar-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--border);display:flex;justify-content:center;padding-bottom:env(safe-area-inset-bottom,0px);z-index:30}.tab-bar-inner{display:flex;width:100%;max-width:var(--max-width);padding:6px 10px;gap:4px}.tab-button{flex:1;background:none;border:none;color:var(--text-faint);padding:8px 4px 7px;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:.68rem;font-family:var(--font-sans);font-weight:500;letter-spacing:.02em;position:relative;border-radius:var(--radius-sm);transition:color .18s var(--ease),background .18s var(--ease)}.tab-button:hover{color:var(--text-soft)}.tab-button.active{color:var(--accent);font-weight:600;background:var(--accent-soft)}.tab-badge{position:absolute;top:3px;right:calc(50% - 24px);background:var(--danger);color:#fff;font-size:.6rem;font-weight:700;min-width:17px;height:17px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px;box-shadow:0 0 0 2px var(--tabbar-bg)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:22px;margin-bottom:18px}.section-title{font-size:.72rem;font-family:var(--font-sans);font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:var(--accent);margin:0 0 12px;display:flex;align-items:center;gap:8px}.section-title svg{flex:none;opacity:.85}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg-card);color:var(--text);padding:10px 18px;font-size:.92rem;font-family:var(--font-sans);font-weight:500;letter-spacing:.01em;box-shadow:var(--shadow-sm);transition:transform .1s var(--ease),background .15s var(--ease),border-color .15s var(--ease),box-shadow .15s var(--ease)}.btn:hover{background:var(--bg-inset)}.btn:active{transform:scale(.98)}.btn svg{flex:none}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast);font-weight:600}.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.btn-primary:disabled{opacity:.55;cursor:not-allowed}.btn-block{width:100%;padding:13px 18px;font-size:1rem}.btn-ghost{background:transparent;border-color:transparent;box-shadow:none;color:var(--accent)}.btn-ghost:hover{background:var(--accent-soft)}.btn-danger{color:var(--danger);border-color:transparent;background:var(--danger-bg);box-shadow:none}.field-label{display:block;font-family:var(--font-sans);font-size:.76rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--text-soft);margin-bottom:7px}.text-input{width:100%;background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text);padding:11px 14px;font-size:.97rem;outline:none;transition:border-color .15s var(--ease),box-shadow .15s var(--ease)}.text-input::placeholder{color:var(--text-faint)}.text-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--focus-ring)}.input-with-button{position:relative}.input-with-button .text-input{padding-right:48px}.input-inline-button{position:absolute;right:5px;top:50%;transform:translateY(-50%);background:none;border:none;border-radius:7px;color:var(--text-faint);display:inline-flex;align-items:center;justify-content:center;padding:7px;transition:color .15s var(--ease),background .15s var(--ease)}.input-inline-button:hover{color:var(--text);background:var(--bg-inset)}.muted{color:var(--text-soft)}.small{font-size:.86rem}.pill{display:inline-flex;align-items:center;font-family:var(--font-sans);font-size:.64rem;font-weight:650;text-transform:uppercase;letter-spacing:.08em;border-radius:999px;padding:2.5px 10px;background:var(--bg-inset);color:var(--text-soft)}.pill-register-formal{background:var(--longman-bg);color:var(--longman)}.pill-register-informal{background:var(--gold-bg);color:var(--gold)}.pill-register-neutral{background:var(--bg-inset);color:var(--text-soft)}.pill-register-literary{background:var(--collins-bg);color:var(--collins)}.pill-level-beginner{background:var(--level-beginner-bg);color:var(--level-beginner)}.pill-level-intermediate{background:var(--level-intermediate-bg);color:var(--level-intermediate)}.pill-level-advanced{background:var(--level-advanced-bg);color:var(--level-advanced)}.notice{display:flex;gap:12px;align-items:flex-start;background:var(--accent-soft);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;font-size:.84rem;line-height:1.6;color:var(--text-soft)}.notice svg{flex:none;margin-top:2px;color:var(--accent)}.error-box{display:flex;gap:10px;align-items:flex-start;background:var(--danger-bg);color:var(--danger);border-radius:var(--radius-sm);padding:12px 14px;font-size:.9rem;font-family:var(--font-sans);margin:14px 0}.error-box svg{flex:none;margin-top:1px}.empty-state{text-align:center;padding:56px 24px;color:var(--text-soft)}.empty-icon-ring{width:74px;height:74px;margin:0 auto 18px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}.empty-state h3{margin:0 0 8px;color:var(--text);font-size:1.25rem;letter-spacing:-.01em}.empty-state p{max-width:42ch;margin:0 auto 18px;font-size:.93rem}.drop-zone{display:block;border:1.5px dashed var(--border-strong);border-radius:var(--radius-lg);background:var(--bg-card);padding:44px 24px 40px;text-align:center;color:var(--text-soft);width:100%;font-family:var(--font-serif);transition:border-color .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease)}.drop-zone:hover{border-color:var(--accent);box-shadow:var(--shadow)}.drop-zone-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}.drop-zone strong{display:block;font-size:1.18rem;color:var(--text);letter-spacing:-.01em;margin-bottom:6px}.drop-zone .small{max-width:40ch;margin:0 auto;display:block}.preview-wrap{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:16px}.preview-wrap img{display:block;width:100%;max-height:440px;object-fit:contain;background:var(--bg-inset)}.upload-actions{display:flex;gap:10px}.upload-actions .btn{flex:1}.upload-tip{text-align:center;color:var(--text-faint);font-size:.83rem;margin-top:16px;line-height:1.7}@keyframes shimmer{0%{background-position:-420px 0}to{background-position:420px 0}}.skeleton{border-radius:7px;background:linear-gradient(90deg,var(--bg-inset) 25%,var(--border) 45%,var(--bg-inset) 65%);background-size:840px 100%;animation:shimmer 1.5s infinite linear}.skeleton-line{height:13px;margin-bottom:11px}.skeleton-line.w-60{width:60%}.skeleton-line.w-80{width:80%}.skeleton-title{height:18px;width:38%;margin-bottom:16px}.loading-status{display:flex;align-items:center;justify-content:center;gap:9px;font-family:var(--font-sans);font-size:.88rem;color:var(--text-soft);margin:8px 0 20px}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:15px;height:15px;border-radius:50%;border:2px solid var(--border-strong);border-top-color:var(--accent);animation:spin .8s linear infinite;flex:none}.result-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px}.back-link{display:inline-flex;align-items:center;gap:7px;background:none;border:none;color:var(--text-soft);font-family:var(--font-sans);font-size:.86rem;font-weight:500;padding:6px 8px 6px 0;margin-bottom:10px;border-radius:var(--radius-sm);transition:color .15s var(--ease)}.back-link:hover{color:var(--accent)}.summary-text{margin:0;font-size:1.04rem;line-height:1.75}.original-source-image{display:block;width:100%;max-height:480px;object-fit:contain;border-radius:var(--radius-sm);background:var(--bg-inset);border:1px solid var(--border)}.original-source-text{font-style:italic;font-size:.98rem;line-height:1.75;color:var(--text-soft);border-left:3px solid var(--border-strong);padding-left:14px}.original-source-text p{margin:0 0 .9em}.original-source-text p:last-child{margin-bottom:0}.vocab-card{border:1px solid var(--border);border-radius:var(--radius);padding:16px 16px 14px;margin-bottom:14px;background:var(--bg-elevated);box-shadow:var(--shadow-sm);transition:box-shadow .18s var(--ease),border-color .18s var(--ease)}.vocab-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow)}.vocab-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:10px}.vocab-word{font-size:1.22rem;font-weight:700;letter-spacing:-.01em;margin:0;line-height:1.35}.vocab-pos{font-style:italic;font-weight:400;color:var(--text-faint);font-size:.86rem;margin-left:7px}.vocab-head-controls{display:flex;align-items:center;gap:8px;flex:none}.star-button{background:none;border:none;border-radius:8px;padding:5px;display:inline-flex;color:var(--text-faint);transition:color .15s var(--ease),transform .12s var(--ease),background .15s var(--ease)}.star-button:hover{color:var(--gold);background:var(--gold-bg)}.star-button:active{transform:scale(.88)}.star-button.starred{color:var(--gold)}.speak-button{background:none;border:none;border-radius:8px;padding:4px;display:inline-flex;align-items:center;justify-content:center;color:var(--text-faint);vertical-align:middle;margin-left:4px;transition:color .15s var(--ease),background .15s var(--ease),transform .12s var(--ease)}.speak-button:hover{color:var(--accent);background:var(--accent-soft)}.speak-button:active{transform:scale(.9)}.def-block{border-left:3px solid;border-radius:4px var(--radius-sm) var(--radius-sm) 4px;padding:9px 13px;margin:9px 0;font-size:.93rem;line-height:1.6}.def-collins{border-color:var(--collins);background:var(--collins-bg)}.def-longman{border-color:var(--longman);background:var(--longman-bg)}.def-label{display:flex;align-items:center;gap:5px;font-family:var(--font-sans);font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.11em;margin-bottom:3px}.def-collins .def-label{color:var(--collins)}.def-longman .def-label{color:var(--longman)}.vocab-meta{font-size:.86rem;color:var(--text-soft);margin:7px 0 0;line-height:1.55}.vocab-meta strong{color:var(--text-soft);font-family:var(--font-sans);font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;margin-right:4px}.example-quote{font-style:italic;border-left:3px solid var(--border-strong);margin:10px 0;padding:3px 13px;color:var(--text);font-size:.94rem;line-height:1.65}.breakdown-sentence{font-style:italic;font-size:1.06rem;line-height:1.7;margin:0 0 14px}.breakdown-part{display:grid;grid-template-columns:auto 1fr;gap:5px 13px;padding:11px 0;border-top:1px solid var(--border);font-size:.93rem}.breakdown-label{font-family:var(--font-sans);font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:3px 11px;align-self:start;white-space:nowrap}.breakdown-text{font-weight:600;line-height:1.55}.breakdown-explanation{grid-column:2;color:var(--text-soft);font-size:.87rem;line-height:1.55}.accordion-item{border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:9px;overflow:hidden;background:var(--bg-elevated);transition:border-color .15s var(--ease)}.accordion-item:hover{border-color:var(--border-strong)}.accordion-question{width:100%;text-align:left;background:none;border:none;color:var(--text);padding:13px 15px;font-size:.96rem;font-family:var(--font-serif);line-height:1.5;display:flex;justify-content:space-between;gap:12px;align-items:center}.accordion-chevron{display:inline-flex;transition:transform .22s var(--ease);color:var(--text-faint);flex:none}.accordion-item.open .accordion-chevron{transform:rotate(180deg)}.accordion-answer{display:none;padding:12px 15px;border-top:1px solid var(--border);background:var(--bg-inset);font-size:.92rem;color:var(--text-soft);line-height:1.65}.accordion-item.open .accordion-answer{display:block}.accordion-answer p{margin:0}.try-this{background:var(--gold-bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;font-size:.96rem;line-height:1.65}.try-this textarea{width:100%;margin-top:12px;min-height:78px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg-elevated);color:var(--text);padding:11px 13px;font-size:.95rem;line-height:1.6;resize:vertical;outline:none;transition:border-color .15s var(--ease),box-shadow .15s var(--ease)}.try-this textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--focus-ring)}.screen-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:2px 0 16px}.screen-heading h2{margin:0;font-size:1.5rem;letter-spacing:-.015em}.screen-heading .count{font-family:var(--font-sans);font-size:.8rem;color:var(--text-faint);white-space:nowrap}.vocab-toolbar{display:flex;gap:9px;margin-bottom:16px;flex-wrap:wrap}.search-wrap{position:relative;flex:1;min-width:170px}.search-wrap svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-faint);pointer-events:none}.search-wrap .text-input{padding-left:40px}.vocab-toolbar select{background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text);padding:0 13px;font-size:.87rem;font-family:var(--font-sans);min-height:42px;outline:none;transition:border-color .15s var(--ease)}.vocab-toolbar select:focus{border-color:var(--accent)}.saved-meta-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:10px;font-family:var(--font-sans);font-size:.72rem;color:var(--text-faint)}.tag-chip{background:var(--bg-inset);border-radius:999px;padding:1.5px 10px;font-size:.7rem;font-weight:500;color:var(--text-soft)}.export-row{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:18px}.entry-actions{display:flex;gap:6px;margin-top:12px;padding-top:10px;border-top:1px solid var(--border)}.entry-actions .btn{padding:6px 12px;font-size:.8rem}.flashcard-stage{perspective:1400px;margin:6px 0 18px}.flashcard{position:relative;width:100%;min-height:320px;transform-style:preserve-3d;transition:transform .5s var(--ease);cursor:pointer}.flashcard.flipped{transform:rotateY(180deg)}.flashcard-face{position:absolute;top:0;right:0;bottom:0;left:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:28px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;overflow-y:auto}.flashcard-face.back{transform:rotateY(180deg);justify-content:flex-start;text-align:left;align-items:stretch}.flashcard-front-word{font-size:2.15rem;font-weight:700;letter-spacing:-.015em;margin:0;line-height:1.25}.flip-hint{display:flex;align-items:center;gap:7px;margin-top:20px;font-size:.78rem;color:var(--text-faint);font-family:var(--font-sans)}.grade-row{display:flex;gap:10px}.grade-row .btn{flex:1;flex-direction:column;gap:2px;padding:11px 6px 9px;font-weight:600}.grade-interval{font-size:.68rem;font-weight:500;color:var(--text-faint);font-family:var(--font-sans)}.btn-grade-hard{border-color:var(--danger);color:var(--danger);background:var(--bg-card)}.btn-grade-hard:hover{background:var(--danger-bg)}.btn-grade-good{border-color:var(--accent);color:var(--accent);background:var(--bg-card)}.btn-grade-good:hover{background:var(--accent-soft)}.btn-grade-easy{border-color:var(--collins);color:var(--collins);background:var(--bg-card)}.btn-grade-easy:hover{background:var(--collins-bg)}.review-progress{font-family:var(--font-sans);font-size:.78rem;font-weight:500;letter-spacing:.04em;color:var(--text-faint);text-align:center;margin:2px 0 8px}.progress-track{height:5px;background:var(--bg-inset);border-radius:3px;overflow:hidden;margin-bottom:20px}.progress-fill{height:100%;background:var(--accent);border-radius:3px;transition:width .35s var(--ease)}.recall-hint{display:flex;align-items:center;justify-content:center;gap:8px;color:var(--text-faint);font-family:var(--font-sans);font-size:.84rem;text-align:center}.review-banner{display:flex;align-items:center;gap:13px;background:var(--bg-card);border:1px solid var(--border);border-left:4px solid var(--gold);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;margin-bottom:18px;width:100%;color:var(--text);font-size:.93rem;font-family:var(--font-sans);text-align:left;transition:box-shadow .18s var(--ease),transform .12s var(--ease)}.review-banner:hover{box-shadow:var(--shadow-lg);transform:translateY(-1px)}.review-banner .banner-icon{width:40px;height:40px;border-radius:50%;background:var(--gold-bg);color:var(--gold);display:flex;align-items:center;justify-content:center;flex:none}.review-banner .banner-body{flex:1;min-width:0}.review-banner strong{display:block;font-size:.94rem}.review-banner .banner-sub{color:var(--text-faint);font-size:.8rem}.review-banner .banner-arrow{color:var(--text-faint);flex:none;display:inline-flex;transform:rotate(180deg)}.guide-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:16px;overflow:hidden}.guide-header{width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;background:none;border:none;padding:14px 16px;color:var(--text);font-family:var(--font-sans)}.guide-header-left{display:flex;align-items:center;gap:9px;color:var(--accent)}.guide-header-left strong{color:var(--text);font-size:.95rem}.guide-card.open .accordion-chevron{transform:rotate(180deg)}.guide-body{padding:14px 16px 16px;border-top:1px solid var(--border)}.guide-steps{margin:0 0 12px;padding-left:20px;font-size:.9rem;line-height:1.7;color:var(--text)}.guide-steps li{margin-bottom:10px}.guide-steps li:last-child{margin-bottom:0}.guide-steps em{font-style:normal;font-weight:600;color:var(--accent)}.streak-banner{border-left-color:var(--accent)}.streak-banner .streak-icon{background:var(--accent-soft);color:var(--accent)}.home-welcome{margin:2px 0 16px}.home-welcome h2{margin:0 0 4px;font-size:1.4rem;letter-spacing:-.015em}.home-welcome p{margin:0;line-height:1.6}.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}.entry-card{display:flex;flex-direction:column;align-items:flex-start;gap:9px;text-align:left;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:22px 18px;font-family:var(--font-serif);overflow:hidden;position:relative;transition:box-shadow .18s var(--ease),border-color .18s var(--ease),transform .12s var(--ease)}.entry-card:after{content:"";position:absolute;top:-40px;right:-40px;width:110px;height:110px;border-radius:50%;background:var(--accent-soft);opacity:.6;z-index:0}.entry-card-alt:after{background:var(--level-beginner-bg)}.entry-card>*{position:relative;z-index:1}.entry-card:hover{box-shadow:var(--shadow-lg);border-color:var(--border-strong);transform:translateY(-2px)}.entry-card strong{font-size:1.08rem;letter-spacing:-.01em}.entry-card-icon{width:54px;height:54px;border-radius:16px;background:linear-gradient(140deg,var(--gold),var(--accent));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px -3px #78551466}.entry-card-icon-alt{background:linear-gradient(140deg,#57c97a,#2f9e5b);box-shadow:0 4px 10px -3px #1e6e3c66}@media (max-width: 420px){.entry-grid{grid-template-columns:1fr}}.checkin-card{margin-top:6px}.checkin-card .btn{gap:10px}.checkin-hint{text-align:center;margin:8px 0 0}.level-test-options{display:flex;flex-direction:column;gap:10px}.level-test-option{text-align:left;background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:12px 15px;font-size:.96rem;color:var(--text);font-family:var(--font-serif);transition:border-color .15s var(--ease),background .15s var(--ease)}.level-test-option:hover{border-color:var(--accent)}.level-test-option.selected{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:600}.app-credit{text-align:center;color:var(--text-faint);font-family:var(--font-sans);font-size:.78rem;margin:4px 0 0}.book-cover{position:relative;display:flex;align-items:center;justify-content:center;flex:none;border-radius:8px 11px 11px 8px;box-shadow:0 3px 8px -2px #3c280559;overflow:hidden}.book-cover-emoji{font-size:1.9rem;line-height:1;filter:drop-shadow(0 1px 1px rgba(0,0,0,.2))}.book-cover-spine{position:absolute;left:0;top:0;bottom:0;width:7px;background:linear-gradient(to right,rgba(0,0,0,.28),rgba(0,0,0,.06) 55%,rgba(255,255,255,.35) 60%,transparent 72%)}.book-cover-md{width:58px;height:82px}.book-cover-sm{width:44px;height:62px;border-radius:6px 8px 8px 6px}.book-cover-sm .book-cover-emoji{font-size:1.4rem}.starter-banner{display:flex;align-items:center;gap:14px;width:100%;text-align:left;background:linear-gradient(135deg,var(--accent-soft),var(--bg-card));border:1px solid var(--border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:14px 16px;margin-bottom:18px;font-family:var(--font-serif);transition:transform .12s var(--ease),box-shadow .18s var(--ease)}.starter-banner:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}.starter-banner-body{display:flex;flex-direction:column;gap:1px;min-width:0}.starter-banner-label{font-family:var(--font-sans);font-size:.72rem;font-weight:700;letter-spacing:.04em;color:var(--accent)}.starter-banner strong{font-size:1.05rem;letter-spacing:-.01em}.book-card{display:flex;gap:15px;align-items:flex-start;width:100%;text-align:left;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:16px;margin-bottom:14px;font-family:var(--font-serif);transition:transform .12s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}.book-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}.book-card-body{flex:1;min-width:0}.book-card-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.book-card-head h3{margin:0;font-size:1.1rem;letter-spacing:-.01em}.book-card-author{margin:2px 0 8px}.book-card-meta{display:flex;align-items:center;flex-wrap:wrap;gap:7px;margin:0 0 10px}.meta-chip{display:inline-flex;align-items:center;gap:4px;background:var(--bg-inset);color:var(--text-soft);font-family:var(--font-sans);font-size:.72rem;font-weight:600;border-radius:999px;padding:3px 9px}.difficulty-meter{display:inline-flex;align-items:center;gap:3px;margin-left:2px}.diff-dot{width:7px;height:7px;border-radius:50%;background:var(--border-strong)}.book-card-beginner .diff-dot.on{background:var(--level-beginner)}.book-card-intermediate .diff-dot.on{background:var(--level-intermediate)}.book-card-advanced .diff-dot.on{background:var(--level-advanced)}.recommended-tag{display:flex;align-items:center;gap:5px;color:var(--gold);font-family:var(--font-sans);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin:0 0 8px}.book-card-desc{color:var(--text-soft);margin:0 0 10px;line-height:1.55}.continue-line{font-weight:600;color:var(--accent)!important;font-family:var(--font-sans)}.level-section{margin-bottom:6px}.level-section-header{display:flex;align-items:center;gap:8px;margin:24px 0 13px;font-family:var(--font-sans);font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.09em}.level-section:first-child .level-section-header{margin-top:6px}.level-section-header .level-dot{width:11px;height:11px;border-radius:50%;flex:none}.level-section-hint{font-family:var(--font-serif);font-size:.82rem;font-weight:400;text-transform:none;letter-spacing:0;color:var(--text-faint)}.level-section-beginner .level-section-header{color:var(--level-beginner)}.level-section-beginner .level-dot{background:var(--level-beginner)}.level-section-intermediate .level-section-header{color:var(--level-intermediate)}.level-section-intermediate .level-dot{background:var(--level-intermediate)}.level-section-advanced .level-section-header{color:var(--level-advanced)}.level-section-advanced .level-dot{background:var(--level-advanced)}.reader-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}.reader-head-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:8px}.reader-title{margin:0;font-size:1.2rem;letter-spacing:-.01em}.reader-chapter-select{background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:var(--radius-sm);color:var(--text);padding:8px 12px;font-size:.84rem;font-family:var(--font-sans);max-width:100%;width:100%}.beginner-tip{margin-bottom:14px}.reader-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.reading-time{font-family:var(--font-sans);font-size:.8rem;color:var(--text-faint)}.font-size-control{display:flex;align-items:center;gap:8px}.font-size-control .icon-button{width:32px;height:32px}.font-size-control .icon-button:disabled{opacity:.4;cursor:not-allowed}.font-size-label{font-family:var(--font-sans);font-weight:700;color:var(--text-soft);font-size:.9rem}.book-page{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:28px 26px;margin-bottom:12px;font-size:1.06rem;line-height:1.85}.book-page p{margin:0 0 1.1em;text-indent:1.6em}.book-page p:last-child{margin-bottom:0}.reader-page-count{text-align:center;color:var(--text-faint);font-family:var(--font-sans);font-size:.8rem;margin:0 0 14px}.reader-nav{display:flex;gap:10px}.reader-nav .btn{flex:1}.streak-hero{text-align:center}.streak-hero-number{display:flex;align-items:center;justify-content:center;gap:10px;color:var(--accent);font-family:var(--font-serif)}.streak-hero-number span{font-size:3.2rem;font-weight:800;letter-spacing:-.02em;line-height:1}.day-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin:20px 0 22px}.day-dot{aspect-ratio:1;border-radius:5px;background:var(--bg-inset);border:1px solid var(--border)}.day-dot.active{background:var(--accent);border-color:var(--accent)}.day-dot.today{box-shadow:0 0 0 2px var(--accent-soft)}.share-message{display:flex;align-items:center;justify-content:center;gap:6px;color:var(--text-soft);font-family:var(--font-sans);margin:10px 0 0}.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px}.stat-tile{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:16px 10px;text-align:center;display:flex;flex-direction:column;gap:4px}.stat-tile strong{font-family:var(--font-serif);font-size:1.6rem;font-weight:800;color:var(--accent);letter-spacing:-.02em}.stat-tile span{font-family:var(--font-sans);font-size:.72rem;color:var(--text-faint);text-transform:uppercase;letter-spacing:.06em}.badge-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.badge-tile{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-inset);opacity:.5}.badge-tile.earned{opacity:1;background:var(--bg-elevated);border-color:var(--gold)}.badge-tile strong{font-size:.92rem;letter-spacing:-.005em}.badge-icon{width:36px;height:36px;border-radius:50%;background:var(--bg-inset);color:var(--text-faint);display:flex;align-items:center;justify-content:center}.badge-tile.earned .badge-icon{background:var(--gold-bg);color:var(--gold)}@media (max-width: 420px){.badge-grid{grid-template-columns:1fr 1fr}}.crash-screen{max-width:480px;margin:90px auto;text-align:center;padding:0 24px}.crash-screen h2{margin:0 0 8px;letter-spacing:-.01em}.crash-screen .empty-icon-ring{background:var(--danger-bg);color:var(--danger)}.crash-screen .btn{margin-top:18px}@media (max-width: 480px){body{font-size:16px}.card{padding:18px}.app-brand .tagline{display:none}.grade-row{flex-wrap:nowrap}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}@media print{.app-header,.tab-bar,.result-toolbar,.star-button,.speak-button,.try-this textarea,.review-banner,.guide-card{display:none!important}body,.app-shell{background:#fff!important;color:#000!important;padding:0!important;max-width:none!important}#printable-study-guide{padding:0 24px}.card{box-shadow:none!important;border:none!important;border-bottom:1px solid #ccc!important;border-radius:0!important;page-break-inside:avoid}.def-block,.breakdown-label,.example-quote,.try-this{background:#fff!important;color:#000!important;border:1px solid #ccc!important}.accordion-answer{display:block!important;background:#fff!important}.vocab-card,.original-source{page-break-inside:avoid}.original-source-image{max-height:320px;border:1px solid #ccc!important}.original-source-text{color:#000!important;border-left:3px solid #ccc}}