@import"https://fonts.googleapis.com/css2?family=Shippori+Mincho+B1:wght@500;700&family=Zen+Kaku+Gothic+New:wght@400;600;700&display=swap";:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;--bg-primary: #ffffff;--bg-secondary: #f5f7fa;--bg-tertiary: #f9f9f9;--bg-card: #ffffff;--bg-surface: #fbfcff;--bg-input: #ffffff;--text-primary: #213547;--text-secondary: #34495e;--text-tertiary: #666;--text-muted: #8c8c8c;--text-inverse: #ffffff;--border-primary: #e3e7ec;--border-secondary: #e6eefc;--border-tertiary: #dbe9ff;--border-focus: #646cff;--accent-primary: #5aa6ff;--accent-secondary: #3b8ee6;--accent-hover: #747bff;--accent-glow: rgba(100, 108, 255, .35);--shadow-sm: 0 2px 8px rgba(2, 6, 23, .06);--shadow-md: 0 8px 30px rgba(2, 6, 23, .06);--shadow-lg: 0 24px 60px rgba(31, 42, 68, .16);--gradient-primary: linear-gradient(180deg, #5aa6ff, #3b8ee6);--gradient-surface: linear-gradient(180deg, #ffffff, #fbfcff);--gradient-bg: linear-gradient(140deg, #fffaf0 0%, #f3f0e8 40%, #f8f5ef 100%);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}[data-theme=dark]{--bg-primary: #1a1a1a;--bg-secondary: #242424;--bg-tertiary: #2d2d2d;--bg-card: #2d2d2d;--bg-surface: #333333;--bg-input: #2d2d2d;--text-primary: rgba(255, 255, 255, .87);--text-secondary: rgba(255, 255, 255, .75);--text-tertiary: rgba(255, 255, 255, .6);--text-muted: rgba(255, 255, 255, .45);--text-inverse: #1a1a1a;--border-primary: #404040;--border-secondary: #4a4a4a;--border-tertiary: #555555;--border-focus: #5aa6ff;--accent-primary: #5aa6ff;--accent-secondary: #3b8ee6;--accent-hover: #7aa7ff;--accent-glow: rgba(90, 166, 255, .35);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 8px 30px rgba(0, 0, 0, .4);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .5);--gradient-primary: linear-gradient(180deg, #5aa6ff, #3b8ee6);--gradient-surface: linear-gradient(180deg, #2d2d2d, #333333);--gradient-bg: linear-gradient(140deg, #1a1a1a 0%, #242424 40%, #2d2d2d 100%)}#root{width:100%;min-height:100vh;background-color:var(--bg-primary);color:var(--text-primary)}a{font-weight:500;color:var(--accent-primary);text-decoration:inherit}a:hover{color:var(--accent-hover)}body{margin:0;min-width:320px;min-height:100vh;width:100%;background-color:var(--bg-primary);color:var(--text-primary)}h1{font-size:3.2em;line-height:1.1;color:var(--text-primary)}button{border-radius:8px;border:1px solid var(--border-primary);padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--bg-tertiary);color:var(--text-primary);cursor:pointer;transition:border-color .25s}button:hover{border-color:var(--border-focus)}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.character-list{--ink: var(--text-primary);--ink-soft: var(--text-secondary);--accent: var(--accent-primary);--accent-2: var(--accent-secondary);--accent-ink: var(--text-inverse);--accent-soft: var(--accent-glow);--accent-border: var(--border-focus);--accent-glow: var(--accent-glow);--accent-tint: var(--bg-tertiary);--surface: var(--bg-card);--surface-soft: var(--bg-surface);--line: var(--border-primary);padding:2.5rem 2.5rem 3rem;width:100%;box-sizing:border-box;background:var(--gradient-bg);min-height:100vh;font-family:Zen Kaku Gothic New,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif;color:var(--ink)}.character-list[data-theme=usako]{--accent: #69c7e8;--accent-2: #9fe3f5;--accent-ink: var(--text-inverse);--accent-soft: rgba(105, 199, 232, .2);--accent-border: rgba(105, 199, 232, .45);--accent-glow: rgba(105, 199, 232, .35);--accent-tint: var(--bg-tertiary)}.character-list[data-theme=nekoko]{--accent: #f39c12;--accent-2: #f6b23f;--accent-ink: var(--text-inverse);--accent-soft: rgba(243, 156, 18, .18);--accent-border: rgba(243, 156, 18, .3);--accent-glow: rgba(243, 156, 18, .35);--accent-tint: var(--bg-tertiary)}.character-list[data-theme=keroko]{--accent: #9bd64c;--accent-2: #c7e889;--accent-ink: var(--text-inverse);--accent-soft: rgba(155, 214, 76, .2);--accent-border: rgba(155, 214, 76, .45);--accent-glow: rgba(155, 214, 76, .35);--accent-tint: var(--bg-tertiary)}.character-list h1{text-align:center;margin-bottom:2.5rem;font-family:Shippori Mincho B1,Hiragino Mincho ProN,Yu Mincho,serif;font-size:clamp(2rem,4vw,2.8rem);letter-spacing:.08em;color:var(--ink);position:relative}.nav-buttons-top{display:flex;justify-content:space-between;gap:1rem;margin-bottom:2rem;margin-right:.5rem}.nav-button-top>:first-child{margin-right:auto}.nav-right-group{display:flex;gap:1rem}.question-panel-btn,.admin-panel-btn{text-decoration:none}.question-panel-btn{position:static}.question-panel-content{display:flex;align-items:center;gap:.5rem;padding:.6rem 1rem;background:var(--gradient-surface);border:2px solid var(--accent-border);border-radius:12px;cursor:pointer;transition:transform .12s,box-shadow .12s,background-color .2s ease;box-shadow:var(--shadow-sm);color:var(--accent-primary);font-weight:600;font-size:.95rem;position:relative;overflow:hidden}.question-panel-content:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);background:var(--bg-card);color:var(--accent-hover)}.question-panel-content .icon{font-size:1.2rem;display:inline-block}.admin-panel-content{display:flex;align-items:center;gap:.5rem;padding:.6rem 1rem;background:var(--gradient-surface);border:2px solid var(--border-secondary);border-radius:12px;cursor:pointer;transition:transform .12s,box-shadow .12s,background-color .2s ease;box-shadow:var(--shadow-sm);color:var(--text-secondary);font-weight:600;font-size:.95rem;position:relative;overflow:hidden}.admin-panel-content:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);background:var(--bg-card);color:var(--text-primary)}.admin-panel-content .icon{font-size:1.2rem;display:inline-block}.character-container{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:2rem;align-items:start}.main{display:flex;align-items:center;justify-content:center}.character-preview{width:100%;border-radius:24px;padding:2.5rem;background:var(--gradient-surface);box-shadow:var(--shadow-lg);min-height:420px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-secondary);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.placeholder{color:var(--ink-soft);font-size:1.05rem}.preview-inner{display:grid;grid-template-columns:minmax(0,260px) minmax(0,1fr);gap:2.5rem;align-items:center;width:100%}.preview-avatar-wrap{width:100%;aspect-ratio:2 / 3;display:flex;align-items:center;justify-content:center;background:var(--gradient-surface);border-radius:20px;position:relative;overflow:hidden;box-shadow:inset 0 4px 12px #ffffffb3,var(--shadow-lg)}.preview-avatar-wrap:before{content:"";position:absolute;inset:10% 8% 15%;border-radius:50%;background:radial-gradient(circle,rgba(255,236,200,.7),transparent 60%);filter:blur(8px);animation:pulse 6s ease-in-out infinite}.avatar-orbit{position:absolute;inset:12% 10% auto;height:76%;border-radius:50%;border:1px dashed var(--accent-border);animation:spin 18s linear infinite}.preview-avatar{width:78%;height:88%;object-fit:contain;border-radius:12px;filter:drop-shadow(0 18px 30px rgba(31,42,68,.25));animation:float 6s ease-in-out infinite;z-index:1}.preview-body h2{margin:0;font-size:clamp(1.6rem,3vw,2.4rem);font-family:Shippori Mincho B1,Hiragino Mincho ProN,Yu Mincho,serif;color:var(--ink)}.name-row{display:flex;align-items:center;flex-wrap:wrap;gap:.75rem}.catchphrase{padding:.35rem .9rem;border-radius:999px;background:var(--accent-soft);color:var(--text-primary);font-size:.95rem}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:.75rem;margin-bottom:1.5rem}.stat{padding:.75rem 1rem;border-radius:14px;background:var(--surface-soft);border:1px solid var(--line)}.stat .label{display:block;font-size:.75rem;color:var(--text-muted);margin-bottom:.35rem}.stat .value{font-weight:600;color:var(--ink)}.profile-block{padding:1.25rem 1.5rem;border-radius:16px;background:var(--surface);border:1px solid var(--border-primary);margin-bottom:1.5rem}.profile-block h3{margin:0 0 .6rem;font-size:1.05rem;color:var(--ink)}.profile-text{margin:0;line-height:1.7;color:var(--ink-soft)}.tag-section{display:grid;gap:.9rem;margin-bottom:1.5rem}.tag-group{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap}.tag-label{font-size:.85rem;color:var(--text-primary);min-width:3rem}.tags{display:flex;gap:.5rem;flex-wrap:wrap}.tag{padding:.35rem .7rem;border-radius:999px;background:var(--accent-soft);color:var(--text-primary);font-size:.85rem;border:1px solid var(--accent-border)}.tag.ghost{background:#70809026;color:var(--text-secondary);border-color:#70809040}.tag.accent{background:#7ed1bd4d;color:#0f5a4c;border-color:#157d6a40}.primary{width:100%;padding:.85rem 1.2rem;border-radius:14px;border:none;background:var(--gradient-primary);color:var(--text-inverse);font-weight:600;cursor:pointer;box-shadow:var(--shadow-md);transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;position:relative;overflow:hidden}.primary:hover{transform:translateY(-2px) scale(1.01);box-shadow:var(--shadow-lg);filter:brightness(1.05)}.character-sidebar{display:flex;flex-direction:column;gap:1rem}.character-card{border-radius:16px;padding:1rem 1.1rem;background:var(--surface);border:1px solid var(--border-primary);box-shadow:var(--shadow-md);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.character-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}.character-card.touch-panel{background:var(--gradient-surface);border:1px solid var(--border-secondary)}.character-card.small-card{min-height:150px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:.35rem}.character-card.small-card.selected{outline:2px solid var(--accent-border);box-shadow:var(--shadow-lg);transform:translateY(-4px) scale(1.02);background:var(--bg-card)}.card-header{display:flex;align-items:center;gap:.75rem;flex-direction:column}.card-header .avatar{width:72px;height:72px;border-radius:18px;object-fit:cover;border:2px solid var(--accent-border)}.persona-toggle{display:inline-flex;align-items:center;gap:.6rem;padding:.35rem;border-radius:999px;background:var(--surface);border:1px solid var(--line);margin:.6rem 0 1.2rem}.persona-btn{border:none;background:transparent;color:var(--text-primary);padding:.45rem 1rem;border-radius:999px;font-size:.9rem;cursor:pointer;transition:background .2s ease,color .2s ease,transform .2s ease}.persona-btn.is-active{background:var(--accent-soft);color:var(--text-primary);box-shadow:inset 0 0 0 1px var(--accent-border)}.persona-btn:hover{transform:translateY(-1px)}.character-card h2{margin:0;font-size:1.1rem;color:var(--ink)}@media(max-width:1024px){.character-container{grid-template-columns:1fr}.character-sidebar{position:sticky;top:0;z-index:2;background:var(--gradient-surface);padding:.6rem .4rem;border-radius:16px;box-shadow:var(--shadow-md);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.6rem}.character-card.small-card{min-height:120px;padding:.75rem .6rem}.card-header .avatar{width:60px;height:60px;border-radius:16px}.character-card h2{font-size:.95rem}}@media(max-width:720px){.character-list{padding:1.5rem}.character-preview{padding:1.6rem}.preview-inner{grid-template-columns:1fr;text-align:center}.preview-avatar-wrap{width:70%;margin:0 auto}.name-row{justify-content:center}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.tag-group{justify-content:center}.character-sidebar{grid-template-columns:repeat(3,minmax(0,1fr))}.character-card.small-card{min-height:105px;padding:.6rem .4rem}.card-header .avatar{width:52px;height:52px;border-radius:14px}.character-card h2{font-size:.85rem}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse{0%,to{opacity:.5;transform:scale(1)}50%{opacity:.9;transform:scale(1.05)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.tutorial-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:9999;opacity:0;animation:fadeIn .3s forwards}.tutorial-modal{background:var(--surface);width:90%;max-width:600px;border-radius:20px;padding:2rem;position:relative;box-shadow:0 10px 40px #0003;transform:scale(.9);animation:popIn .3s forwards;max-height:80vh;overflow-y:auto;border:1px solid var(--border-primary)}.close-tutorial-btn{position:absolute;top:1rem;right:1rem;z-index:10;width:44px;height:44px;border-radius:50%;padding:0 0 4px;background:var(--surface);border:2px solid var(--line);box-shadow:0 4px 12px #00000026;color:var(--ink-soft);font-size:1.8rem;font-family:Arial,sans-serif;line-height:1;display:flex;justify-content:center;align-items:center;cursor:pointer;transition:all .2s ease}.close-tutorial-btn:hover{background:var(--surface-soft);transform:scale(1.1);color:var(--ink);background-color:var(--accent)}.tutorial-content h2{text-align:center;margin-bottom:1.5rem;color:var(--ink);font-family:Shippori Mincho B1,serif}.tutorial-step.secret{background:var(--accent-soft);padding:10px;border-radius:8px;border:1px dashed var(--accent)}.tutorial-step.secret .step-number{background:var(--accent);color:var(--accent-ink)}.tutorial-step{display:flex;gap:1rem;margin-bottom:1.5rem;align-items:flex-start}.step-number{background:var(--accent);color:#fff;width:28px;height:28px;border-radius:50%;display:flex;justify-content:center;align-items:center;font-weight:700;flex-shrink:0}.step-text h3{margin:0 0 .5rem;font-size:1.1rem;color:var(--ink)}.step-text p{margin:0;font-size:.95rem;color:var(--ink-soft);line-height:1.6}@keyframes fadeIn{to{opacity:1}}@keyframes popIn{to{transform:scale(1)}}.tutorial-trigger-btn{appearance:none;background:transparent;border:none;padding:0;margin:0;cursor:pointer;font-family:inherit;display:inline-flex;align-items:stretch;vertical-align:middle}.character-reports{--ink: var(--text-primary);--ink-soft: var(--text-secondary);--accent: var(--accent-primary);--accent-2: var(--accent-secondary);--accent-ink: var(--text-inverse);--accent-soft: var(--accent-glow);--accent-border: var(--border-focus);--accent-glow: var(--accent-glow);--accent-tint: var(--bg-tertiary);--surface: var(--bg-card);--surface-soft: var(--bg-surface);--line: var(--border-primary);padding:2.5rem 2.5rem 3rem;min-height:100vh;width:100%;box-sizing:border-box;background:var(--gradient-bg);font-family:Zen Kaku Gothic New,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif;color:var(--ink)}.character-reports[data-theme=usako]{--accent: #69c7e8;--accent-2: #9fe3f5;--accent-ink: #1e6f86;--accent-soft: rgba(105, 199, 232, .2);--accent-border: rgba(105, 199, 232, .45);--accent-glow: rgba(105, 199, 232, .35);--accent-tint: #e9f7ff}.character-reports[data-theme=nekoko]{--accent: #f39c12;--accent-2: #f6b23f;--accent-ink: #8a4a0f;--accent-soft: rgba(243, 156, 18, .18);--accent-border: rgba(243, 156, 18, .3);--accent-glow: rgba(243, 156, 18, .35);--accent-tint: #fff6e6}.character-reports[data-theme=keroko]{--accent: #9bd64c;--accent-2: #c7e889;--accent-ink: #3f6f1f;--accent-soft: rgba(155, 214, 76, .2);--accent-border: rgba(155, 214, 76, .45);--accent-glow: rgba(155, 214, 76, .35);--accent-tint: #f2ffe6}.page-header{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:1.5rem;margin-bottom:2.5rem}.title-block h1{margin:0 0 .5rem;font-family:Shippori Mincho B1,Hiragino Mincho ProN,Yu Mincho,serif;font-size:clamp(2.1rem,4vw,2.9rem);letter-spacing:.08em}.eyebrow{font-size:.9rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);margin:0 0 .4rem}.subtitle{margin:0;color:var(--text-primary)}.top-actions{display:flex;align-items:center;gap:.75rem}.ghost-btn{text-decoration:none;padding:.6rem 1.2rem;border-radius:999px;border:2px solid var(--accent-border);color:var(--accent-ink);font-weight:600;background:#ffffffbf;transition:transform .15s,box-shadow .15s}.ghost-btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px var(--accent-glow)}.char-tabs{display:flex;justify-content:center;gap:1rem;margin-bottom:2rem;flex-wrap:wrap}.char-tab{display:inline-flex;align-items:center;gap:.6rem;padding:.45rem 1rem;border-radius:999px;text-decoration:none;color:var(--ink-soft);background:#ffffffb3;border:1px solid transparent;transition:transform .15s,box-shadow .15s,border-color .15s;font-weight:600}.char-tab.active{background:var(--bg-tertiary);border-color:var(--accent-border);color:var(--accent-ink);transform:translateY(-2px);box-shadow:0 6px 16px var(--accent-glow)}.tab-icon{width:28px;height:28px;object-fit:cover;border-radius:50%;border:2px solid rgba(255,255,255,.8);box-shadow:0 4px 10px #1f2a4426}.report-section{margin-top:1.5rem}.report-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.report-header h3{margin:0;font-size:1.4rem}.report-count{background:var(--accent-soft);color:var(--accent-ink);padding:.2rem .8rem;border-radius:999px;font-weight:700}.report-list{display:grid;gap:1.5rem}.report-entry{background:#fff;border:none;border-left:6px solid var(--accent);border-radius:6px 16px 16px 6px;box-shadow:0 14px 30px #1f2a4414;padding:1.6rem 1.7rem}.report-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;color:#6c758f;font-size:.95rem}.report-content p{margin:0 0 .8rem;color:#30384f;line-height:1.7}.report-content p:last-child{margin-bottom:0}.message-badge{background:var(--accent-soft);color:var(--accent-ink);padding:2px 8px;border-radius:4px;font-size:.8rem}.loading,.error,.empty-state{text-align:center;padding:2rem;color:var(--ink-soft);background:#ffffffb3;border-radius:16px}@media(max-width:960px){.hero-card{grid-template-columns:1fr}.page-header{align-items:flex-start}}@media(max-width:720px){.character-reports{padding:2rem 1.4rem 2.5rem}.hero-card{padding:2rem 1.6rem}}.theme-form-container{--ink: #1f2a44;--accent: #f39c12;--accent-2: #f6b23f;--accent-glow: rgba(243, 156, 18, .35);--surface-soft: #f7f5f1;--line: rgba(31, 42, 68, .12);--input-bg: rgba(255, 255, 255, .6);--input-focus-bg: #fff;background:radial-gradient(circle at 10% 10%,rgba(255,220,150,.35),transparent 45%),radial-gradient(circle at 90% 20%,rgba(162,228,241,.35),transparent 40%),linear-gradient(140deg,#fffaf0,#f3f0e8 40%,#f8f5ef);min-height:100vh;width:100%;padding:2.5rem;box-sizing:border-box;font-family:Zen Kaku Gothic New,sans-serif;color:var(--ink);transition:background .3s ease,color .3s ease}:root[data-theme=dark] .theme-form-container{--ink: #e6eefc;--line: rgba(255, 255, 255, .2);--input-bg: rgba(20, 30, 50, .6);--input-focus-bg: #1a2639;background:radial-gradient(circle at 50% 0%,#2b3a55,#1a202c)}.theme-form-wrapper{background:transparent;width:100%;max-width:800px;margin:0 auto}.theme-form-wrapper h1{text-align:left;margin-bottom:.5rem;font-family:Shippori Mincho B1,serif;font-size:clamp(2rem,4vw,2.5rem);letter-spacing:.05em;color:var(--ink)}.subtitle{text-align:left;color:var(--ink);opacity:.8;margin-bottom:3rem;font-size:1rem}.error-message{background-color:#fff2f0e6;border:1px solid #ffccc7;color:#d32f2f;padding:1rem;border-radius:8px;margin-bottom:2rem}.success-message{background-color:#f6ffede6;border:1px solid #b7eb8f;color:#388e3c;padding:1rem;border-radius:8px;margin-bottom:2rem}.theme-form{display:flex;flex-direction:column;gap:2rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{color:var(--ink);font-weight:700;font-size:1.1rem}.form-group input,.form-group textarea,.form-group select{padding:1rem;border:2px solid var(--line);border-radius:12px;font-size:1rem;font-family:inherit;background-color:var(--input-bg);color:var(--ink);transition:all .2s ease}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent);background-color:var(--input-focus-bg);box-shadow:0 4px 12px var(--accent-glow)}.form-group small{color:var(--ink);opacity:.7;font-size:.85rem;margin-top:.2rem}.form-actions{display:flex;gap:1.5rem;margin-top:2rem}.btn-submit,.btn-cancel{padding:1rem 2rem;border:none;border-radius:50px;font-size:1rem;font-weight:700;cursor:pointer;transition:all .2s ease;min-width:160px}.btn-submit{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 4px 12px var(--accent-glow)}.btn-submit:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px var(--accent-glow)}.btn-submit:disabled{opacity:.6;cursor:not-allowed;background:#ccc;box-shadow:none}.btn-cancel{background-color:transparent;color:var(--ink);border:2px solid var(--line);opacity:.8}.btn-cancel:hover{background-color:#8080801a;opacity:1}@media(max-width:600px){.theme-form-container{padding:1.5rem}.form-actions{flex-direction:column-reverse}.btn-submit,.btn-cancel{width:100%}}.question-form-page{padding:2rem;max-width:920px;margin:0 auto}.question-form-page h1{text-align:center;margin-bottom:.25rem;color:var(--text-primary);font-weight:700;text-shadow:0 1px 0 rgba(255,255,255,.6)}.question-form-page .hint{text-align:center;color:var(--text-tertiary);margin-bottom:1.25rem}.problem-card{background:var(--gradient-surface);border:1px solid var(--border-secondary);padding:1rem 1.25rem;border-radius:10px;margin-bottom:1rem}.problem-title{margin:0 0 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