:root,[data-theme=dark]{--bg-primary:#080c16;--bg-secondary:#0d1424;--bg-card:#131b2ebf;--bg-card-hover:#1c2640d9;--bg-glass:#0f172aa6;--bg-input:#0b1120cc;--border-subtle:#ffffff14;--border-card:#6366f12e;--border-hover:#8b5cf666;--text-primary:#f8fafc;--text-secondary:#94a3b8;--text-muted:#64748b;--text-accent:#a5b4fc;--sentence-text:#fff;--sentence-pinyin:#a5b4fc;--word-chip-bg:#ffffff0a;--word-chip-border:#ffffff14;--word-chip-text:#fff;--word-chip-pinyin:#93c5fd;--grammar-box-bg:#8b5cf614;--grammar-box-color:#d8b4fe;--flip-front-bg:linear-gradient(145deg, #141d34f2 0%, #0d1424f2 100%);--flip-back-bg:linear-gradient(145deg, #1c1738f2 0%, #120e28f2 100%);--flip-front-text:#fff;--flip-back-text:#fff;--header-bg:#080c16d9;--modal-overlay-bg:#04060cd1;--body-bg-gradient:radial-gradient(circle at 15% 10%, #6366f11f 0%, transparent 40%), radial-gradient(circle at 85% 85%, #8b5cf61a 0%, transparent 45%), linear-gradient(180deg, #080c16 0%, #0d1424 100%);--scrollbar-thumb:#ffffff26;--scrollbar-thumb-hover:#ffffff40;--btn-secondary-bg:#ffffff14;--btn-secondary-hover:#ffffff24;--primary:#6366f1;--primary-hover:#4f46e5;--primary-glow:#6366f159;--secondary:#8b5cf6;--accent-pink:#ec4899;--success:#10b981;--success-bg:#10b98126;--warning:#f59e0b;--danger:#ef4444;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-cjk:"Noto Sans SC", "Noto Sans JP", "Inter", sans-serif;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:22px;--radius-full:9999px;--shadow-card:0 8px 30px #00000059;--shadow-glow:0 0 25px #6366f140;--transition:all .2s cubic-bezier(.16, 1, .3, 1)}[data-theme=light]{--bg-primary:#f1f5f9;--bg-secondary:#fff;--bg-card:#fff;--bg-card-hover:#f8fafc;--bg-glass:#fffffff2;--bg-input:#fff;--border-subtle:#e2e8f0;--border-card:#cbd5e1;--border-hover:#94a3b8;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--text-accent:#3730a3;--sentence-text:#0f172a;--sentence-pinyin:#3730a3;--word-chip-bg:#f8fafc;--word-chip-border:#cbd5e1;--word-chip-text:#0f172a;--word-chip-pinyin:#1d4ed8;--grammar-box-bg:#f5f3ff;--grammar-box-color:#581c87;--flip-front-bg:#fff;--flip-back-bg:#f8fafc;--flip-front-text:#0f172a;--flip-back-text:#0f172a;--header-bg:#fffffff2;--modal-overlay-bg:#0f172a8c;--body-bg-gradient:radial-gradient(circle at 15% 10%, #6366f10f 0%, transparent 40%), radial-gradient(circle at 85% 85%, #8b5cf60d 0%, transparent 45%), linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);--scrollbar-thumb:#00000038;--scrollbar-thumb-hover:#00000061;--btn-secondary-bg:#f1f5f9;--btn-secondary-hover:#e2e8f0;--shadow-card:0 4px 6px -1px #00000014, 0 2px 4px -2px #0000000a, 0 0 0 1px #e2e8f0;--shadow-glow:0 0 15px #6366f126}*{box-sizing:border-box;margin:0;padding:0}html,body{-webkit-text-size-adjust:100%;max-width:100vw;overflow-x:hidden}body{font-family:var(--font-sans);background-color:var(--bg-primary);background-image:var(--body-bg-gradient);color:var(--text-primary);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;background-attachment:fixed;min-height:100dvh;line-height:1.5;transition:background-color .25s,color .25s}button,a,input,select,textarea{touch-action:manipulation}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover)}.glass-panel{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);transition:var(--transition)}.cjk-text{font-family:var(--font-cjk);letter-spacing:.03em}.btn{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition);font-size:.875rem;font-weight:600;font-family:var(--font-sans);border:none;justify-content:center;align-items:center;gap:8px;padding:10px 18px;text-decoration:none;display:inline-flex}.btn-primary{color:#fff;box-shadow:0 4px 14px var(--primary-glow);background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%)}.btn-primary:hover{box-shadow:0 6px 20px var(--primary-glow);background:linear-gradient(135deg,#4f46e5 0%,#7c3aed 100%);transform:translateY(-1px)}.btn-secondary{background:var(--btn-secondary-bg);color:var(--text-primary);border:1px solid var(--border-subtle)}.btn-secondary:hover{background:var(--btn-secondary-hover);border-color:#6366f14d}.btn-icon{border-radius:var(--radius-full);background:var(--btn-secondary-bg);width:36px;height:36px;color:var(--text-primary);border:1px solid var(--border-subtle);cursor:pointer;transition:var(--transition);justify-content:center;align-items:center;padding:0;display:inline-flex}.btn-icon:hover{border-color:var(--primary);color:var(--primary);background:#6366f133;transform:scale(1.05)}.btn-audio{color:var(--primary);background:#6366f126;border:1px solid #6366f159}.btn-audio:hover{color:var(--primary-hover);background:#6366f14d;transform:scale(1.08)}.btn-audio.playing{background:var(--primary);color:#fff;animation:1.2s ease-in-out infinite audioPulse}@keyframes audioPulse{0%{opacity:.8;transform:scale(1)}50%{opacity:1;transform:scale(1.25)}to{opacity:.8;transform:scale(1)}}.form-group{margin-bottom:18px}.form-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);margin-bottom:8px;font-size:.8125rem;font-weight:600;display:block}.form-input,.form-select,.form-textarea{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);width:100%;color:var(--text-primary);transition:var(--transition);outline:none;padding:11px 14px;font-family:inherit;font-size:.9375rem}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--primary);background:var(--bg-secondary);box-shadow:0 0 0 3px #6366f140}.badge{border-radius:var(--radius-full);letter-spacing:.02em;align-items:center;gap:5px;padding:4px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.badge-grammar{background:var(--grammar-box-bg);color:var(--grammar-box-color);border:1px solid #8b5cf64d}.badge-lang{color:var(--text-accent);background:#6366f126;border:1px solid #6366f14d}.badge-success{background:var(--success-bg);color:var(--success);border:1px solid #10b9814d}.app-header{z-index:50;background:var(--header-bg);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border-subtle);padding:12px 24px;transition:background-color .25s,border-color .25s;position:sticky;top:0}.header-container{justify-content:space-between;align-items:center;gap:20px;max-width:1380px;margin:0 auto;display:flex}.brand-logo{color:var(--text-primary);letter-spacing:-.02em;align-items:center;gap:10px;font-size:1.25rem;font-weight:800;text-decoration:none;display:flex}.brand-icon{border-radius:var(--radius-md);color:#fff;background:linear-gradient(135deg,#6366f1 0%,#ec4899 100%);justify-content:center;align-items:center;width:34px;height:34px;font-size:1.1rem;display:flex}.brand-icon-img{border-radius:var(--radius-md);flex-shrink:0;width:34px;height:34px;display:block}.nav-tabs{background:var(--btn-secondary-bg);border-radius:var(--radius-md);border:1px solid var(--border-subtle);align-items:center;gap:6px;padding:4px;display:flex}.nav-tab-btn{color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);background:0 0;border:none;align-items:center;gap:8px;padding:8px 16px;font-size:.875rem;font-weight:600;display:flex}.nav-tab-btn:hover{color:var(--text-primary);background:#6366f114}.nav-tab-btn.active{color:#fff;background:var(--primary);box-shadow:0 2px 8px var(--primary-glow)}.modal-overlay{background:var(--modal-overlay-bg);-webkit-backdrop-filter:blur(8px);z-index:100;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-secondary);border:1px solid var(--border-card);border-radius:var(--radius-xl);width:100%;max-width:680px;max-height:90vh;animation:.25s cubic-bezier(.16,1,.3,1) modalEnter;position:relative;overflow-y:auto;box-shadow:0 20px 50px #0006}@keyframes modalEnter{0%{opacity:0;transform:scale(.96)translateY(12px)}to{opacity:1;transform:scale(1)translateY(0)}}.modal-header{border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.modal-title{color:var(--text-primary);font-size:1.25rem;font-weight:700}.modal-body{padding:24px}.modal-footer{border-top:1px solid var(--border-subtle);justify-content:flex-end;gap:12px;padding:16px 24px;display:flex}.lesson-edit-image-preview-card{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:border-color var(--transition);align-items:center;gap:16px;padding:14px;display:flex}.lesson-edit-image-wrap{border-radius:var(--radius-sm);border:1px solid var(--border-subtle);background:var(--bg-card);flex-shrink:0;width:90px;height:110px;overflow:hidden;box-shadow:0 4px 12px #00000014}.lesson-edit-image-wrap img{object-fit:cover;width:100%;height:100%;display:block}.lesson-edit-image-info{flex:1;min-width:0}.lesson-edit-upload-box{background:var(--bg-input);border:2px dashed var(--border-subtle);border-radius:var(--radius-md);transition:all .2s}.lesson-edit-upload-box:hover{background:var(--bg-card-hover);border-color:#6366f173}.flip-card-perspective{perspective:1200px}.flip-card-inner{text-align:center;width:100%;height:280px;transform-style:preserve-3d;cursor:pointer;transition:transform .6s cubic-bezier(.4,0,.2,1);position:relative}.flip-card-inner.flipped{transform:rotateY(180deg)}.flip-card-face{backface-visibility:hidden;border-radius:var(--radius-xl);width:100%;height:100%;box-shadow:var(--shadow-card);border:1px solid var(--border-card);flex-direction:column;justify-content:center;align-items:center;padding:28px;display:flex;position:absolute;inset:0}.flip-card-front{background:var(--flip-front-bg);color:var(--flip-front-text)}.flip-card-back{background:var(--flip-back-bg);color:var(--flip-back-text);border-color:#8b5cf659;transform:rotateY(180deg)}.sentence-card{background:var(--bg-card);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-card);border-radius:var(--radius-lg);transition:var(--transition);margin-bottom:20px;padding:22px}.sentence-card:hover{border-color:var(--border-hover);box-shadow:0 10px 30px #00000026}.sentence-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:12px;display:flex}.sentence-index{color:var(--primary);width:28px;font-size:1.1rem;font-weight:700}.sentence-text{color:var(--sentence-text);margin-bottom:6px;font-size:1.4rem;font-weight:700;line-height:1.4}.sentence-pinyin{color:var(--sentence-pinyin);margin-bottom:6px;font-size:1rem;font-style:italic}.sentence-meaning{color:var(--text-secondary);font-size:1rem}.grammar-box{background:var(--grammar-box-bg);border-left:3px solid var(--secondary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--grammar-box-color);margin-top:14px;padding:10px 14px;font-size:.875rem}.words-container{border-top:1px solid var(--border-subtle);flex-wrap:wrap;gap:10px;margin-top:16px;padding-top:16px;display:flex}.word-chip{background:var(--word-chip-bg);border:1px solid var(--word-chip-border);border-radius:var(--radius-md);transition:var(--transition);align-items:center;gap:10px;padding:8px 12px;display:inline-flex}.word-chip:hover{background:#6366f11f;border-color:#6366f159;transform:translateY(-2px)}.word-chip-text{color:var(--word-chip-text);font-size:1.15rem;font-weight:700}.word-chip-pinyin{color:var(--word-chip-pinyin);font-size:.8rem}.word-chip-meaning{color:var(--text-secondary);font-size:.75rem}.word-actions{align-items:center;gap:4px;display:flex}.header-brand-group{align-items:center;gap:16px;display:flex}.brand-name{letter-spacing:-.02em;font-weight:800;display:inline-block}.subject-btn{max-width:220px;padding:6px 12px;font-size:.85rem}.subject-btn-name{white-space:nowrap;text-overflow:ellipsis;max-width:130px;font-weight:600;display:inline-block;overflow:hidden}.header-actions{align-items:center;gap:10px;display:flex}.header-profile-text{display:block}.lessons-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px;display:grid}.flashcards-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px;display:grid}.theme-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin-top:16px;display:grid}.lesson-detail-banner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin-bottom:32px;padding:28px;display:flex}.subject-hero-card{border-radius:var(--radius-lg);border:1px solid var(--border-subtle);background:var(--bg-card);transition:border-color var(--transition), box-shadow var(--transition);margin-bottom:24px;padding:28px 32px;position:relative;overflow:hidden;box-shadow:0 10px 30px -10px #00000014,0 4px 6px -2px #00000005}.subject-hero-card:before{content:"";z-index:2;background:linear-gradient(90deg,#6366f1 0%,#8b5cf6 50%,#ec4899 100%);height:3px;position:absolute;top:0;left:0;right:0}.subject-watermark{-webkit-user-select:none;user-select:none;pointer-events:none;font-size:150px;font-weight:900;line-height:1;font-family:var(--font-cjk);color:var(--text-primary);opacity:.045;z-index:0;transition:opacity .3s;position:absolute;bottom:-24px;right:24px}[data-theme=light] .subject-watermark{opacity:.055}.subject-hero-top{z-index:1;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex;position:relative}.subject-hero-badges{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.subject-lang-badge{text-transform:uppercase;letter-spacing:.04em;color:var(--primary);background:#6366f11f;border:1px solid #6366f140;border-radius:9999px;align-items:center;gap:7px;padding:5px 12px;font-size:.78rem;font-weight:700;display:inline-flex}.subject-lang-badge .lang-flag{font-size:1.05rem;line-height:1}.subject-voice-badge{background:var(--bg-input);color:var(--text-secondary);border:1px solid var(--border-subtle);cursor:pointer;border-radius:9999px;align-items:center;gap:7px;padding:5px 12px;font-family:inherit;font-size:.78rem;font-weight:600;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex}.subject-voice-badge:hover{background:var(--btn-secondary-bg);color:var(--primary);border-color:#6366f166;transform:translateY(-1px)}.subject-voice-badge.is-playing{color:var(--primary);border-color:var(--primary);background:#6366f126}.voice-name{text-overflow:ellipsis;white-space:nowrap;max-width:170px;overflow:hidden}.voice-preview-pill{color:var(--primary);text-transform:uppercase;background:#6366f126;border-radius:4px;padding:1px 6px;font-size:.68rem;font-weight:700}.icon-pulse{animation:1.2s ease-in-out infinite audioPulse}.subject-hero-actions{align-items:center;gap:8px;display:flex}.btn-hero-action{border-radius:var(--radius-sm);background:var(--btn-secondary-bg);color:var(--text-secondary);border:1px solid var(--border-subtle);cursor:pointer;align-items:center;gap:6px;padding:6px 12px;font-family:inherit;font-size:.8125rem;font-weight:600;transition:all .15s;display:inline-flex}.btn-hero-action:hover{background:var(--bg-card-hover);color:var(--text-primary);border-color:var(--border-focus)}.btn-hero-action.btn-hero-delete{color:#f87171}.btn-hero-action.btn-hero-delete:hover{color:#ef4444;background:#ef44441f;border-color:#ef444459}.subject-hero-body{z-index:1;margin-bottom:22px;position:relative}.subject-hero-title{color:var(--text-primary);letter-spacing:-.025em;margin:0 0 6px;font-size:clamp(1.6rem,4vw,2.35rem);font-weight:800;line-height:1.2}.subject-hero-subtitle{color:var(--text-secondary);max-width:600px;margin:0;font-size:.875rem;line-height:1.45}.subject-hero-stats{z-index:1;border-top:1px solid var(--border-subtle);flex-wrap:wrap;align-items:center;gap:10px;padding-top:18px;display:flex;position:relative}.subject-stat-pill{border-radius:var(--radius-sm);color:var(--text-secondary);background:var(--bg-input);border:1px solid var(--border-subtle);align-items:center;gap:7px;padding:6px 13px;font-size:.8125rem;font-weight:500;display:inline-flex}.subject-stat-pill strong{color:var(--text-primary);font-weight:700}.subject-stat-pill .stat-icon{color:var(--primary)}.lessons-section-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-top:36px;margin-bottom:20px;display:flex}.lessons-section-title-wrap{flex-direction:column;gap:4px;display:flex}.lessons-section-title{color:var(--text-primary);letter-spacing:-.015em;margin:0;font-size:1.25rem;font-weight:800}.lessons-count-badge{color:var(--primary);background:#6366f11f;border:1px solid #6366f140;border-radius:9999px;padding:2px 9px;font-size:.75rem;font-weight:700}.lessons-section-subtitle{color:var(--text-muted);margin:0;font-size:.84rem}.btn-create-lesson-primary{border-radius:var(--radius-md);gap:8px;padding:10px 20px;font-size:.875rem;font-weight:600;transition:all .2s cubic-bezier(.16,1,.3,1);box-shadow:0 4px 14px #6366f147}.btn-create-lesson-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px #6366f166}.collection-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:28px;display:flex}.collection-title{color:var(--text-primary);font-size:clamp(1.35rem,3.5vw,1.75rem);font-weight:800}.collection-filters{background:var(--btn-secondary-bg);border-radius:var(--radius-md);border:1px solid var(--border-subtle);-webkit-overflow-scrolling:touch;padding:4px;display:flex;overflow-x:auto}.lesson-detail-topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px;display:flex}.lesson-detail-banner{justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px;padding:24px 28px;display:flex}.lesson-detail-title{color:var(--text-primary);letter-spacing:-.02em;font-size:clamp(1.35rem,4vw,1.75rem);font-weight:800}@media (width<=1024px){.app-header{padding:10px 18px}.header-container{gap:12px}.lessons-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.flashcards-grid{grid-template-columns:repeat(2,1fr);gap:18px}.subject-hero-card,.lesson-detail-banner{padding:22px}}@media (width<=768px){.app-header{z-index:50;padding:10px 14px 12px;position:sticky;top:0}.header-container{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;display:flex}.header-brand-group{flex:1;order:1;align-items:center;gap:8px;min-width:0;display:flex}.brand-logo{flex-shrink:0;gap:8px}.brand-icon{flex-shrink:0;width:32px;height:32px;font-size:1rem}.brand-name{font-size:1.1rem;font-weight:800}.subject-btn{min-width:0;max-width:170px;padding:5px 9px;font-size:.8125rem}.subject-btn-name{text-overflow:ellipsis;white-space:nowrap;max-width:95px;overflow:hidden}.header-actions{flex-shrink:0;order:2;align-items:center;gap:8px;display:flex}.header-profile-text{display:none}.nav-tabs{background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-md);order:3;gap:4px;width:100%;margin-top:2px;padding:3px;display:flex;box-shadow:inset 0 1px 2px #0000000d}.nav-tab-btn{border-radius:var(--radius-sm);min-height:38px;color:var(--text-secondary);background:0 0;flex-direction:row;flex:1;justify-content:center;align-items:center;gap:7px;padding:7px 12px;font-size:.8125rem;font-weight:600;transition:all .2s cubic-bezier(.16,1,.3,1);display:inline-flex}.nav-tab-btn span{font-size:.8125rem;font-weight:600}.nav-tab-btn:hover{color:var(--text-primary);background:#6366f114}.nav-tab-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px var(--primary-glow)}}@media (width<=640px){.brand-name{display:none}.subject-btn{max-width:180px}.subject-btn-name{max-width:110px}.nav-tab-btn{gap:5px;padding:6px 8px;font-size:.775rem}.nav-tab-btn span{font-size:.775rem}.lessons-grid{grid-template-columns:1fr;gap:12px}.flashcards-grid{grid-template-columns:1fr;gap:14px}.theme-grid{grid-template-columns:1fr}.subject-hero-card{margin-bottom:22px;padding:20px 16px}.subject-hero-top{gap:10px;margin-bottom:14px}.subject-hero-badges{justify-content:space-between;width:100%}.subject-hero-actions{border-top:1px dashed var(--border-subtle);justify-content:flex-end;gap:8px;width:100%;padding-top:10px}.btn-hero-action{flex:1;justify-content:center;padding:8px 12px}.subject-watermark{opacity:.035;font-size:110px;bottom:-15px;right:10px}.subject-hero-stats{gap:8px}.subject-stat-pill{padding:5px 10px;font-size:.775rem}.lessons-section-header{flex-direction:column;align-items:stretch;gap:14px;margin-top:26px;margin-bottom:16px}.btn-create-lesson-primary{justify-content:center;width:100%;padding:12px 18px}.lesson-detail-banner{flex-direction:column;align-items:stretch;gap:16px;margin-bottom:20px;padding:18px 16px}.collection-header{flex-direction:column;align-items:stretch;gap:14px;margin-bottom:20px}.collection-filters{justify-content:space-between;width:100%}.collection-filters .btn{text-align:center;flex:1;padding:8px 6px;font-size:.75rem}.sentence-card{margin-bottom:14px;padding:16px 14px}.sentence-header{gap:10px}.sentence-index{width:20px;font-size:1rem}.sentence-text{font-size:clamp(1.2rem,5vw,1.4rem);line-height:1.35}.sentence-pinyin{font-size:.9rem}.sentence-meaning{font-size:.875rem}.words-container{gap:8px;margin-top:12px;padding-top:12px}.word-chip{min-height:44px;padding:8px 10px}.word-chip-text{font-size:1.05rem}.btn-audio,.btn-icon{min-width:36px;min-height:36px}.modal-overlay{align-items:flex-end;padding:8px}.modal-content{border-radius:var(--radius-xl) var(--radius-xl) 0 0;max-width:100%;max-height:90dvh;margin-bottom:0}.modal-header,.modal-body{padding:16px 18px}.modal-footer{padding:12px 18px calc(14px + env(safe-area-inset-bottom,0px))}.flip-card-inner{height:250px}.flip-card-face{padding:20px 16px}}@media (width<=380px){.brand-name{display:none}.subject-btn-name{max-width:60px}}