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ease}.lc-opt:hover{border-color:var(--iris-ghost-border)}.lc-opt.correct{border-color:var(--mint);background:var(--success-bg);color:var(--mint);font-weight:500}.lc-opt.wrong{border-color:var(--danger);background:color-mix(in srgb,var(--danger) 8%,transparent)}.lc-explain{font-size:14.5px;color:var(--text-muted);margin-top:8px;line-height:1.5}.sub-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}.sub-back{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--surface);border:1px solid var(--border);color:var(--text-dim)}.sub-title{flex:1;font-size:20px;font-weight:700;letter-spacing:-.4px}.pf-hero{text-align:center;padding:8px 0 18px}.pf-avatar{width:84px;height:84px;border-radius:42px;margin:0 auto 14px;display:grid;place-items:center;font-size:30px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--accent),#8b5cf6,var(--accent-strong));box-shadow:0 12px 30px -10px var(--accent-strong)}.pf-name{font-size:25px;font-weight:700;letter-spacing:-.5px;text-transform:capitalize}.pf-level{display:inline-block;margin-top:8px;padding:5px 14px;border-radius:20px;background:var(--iris-ghost);border:1px solid var(--iris-ghost-border);color:var(--accent);font-size:13px;font-weight:500}.pf-xp{max-width:320px;margin:18px auto 0}.pf-xp-row{display:flex;justify-content:space-between;font-size:11.5px;color:var(--text-muted);font-weight:500;margin-bottom:7px}.pf-section-label{font-size:10px;font-weight:700;letter-spacing:1.8px;text-transform:uppercase;color:var(--text-muted);margin:24px 2px 10px}.pf-menu{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}.pf-item{display:flex;align-items:center;gap:14px;padding:14px;width:100%;text-align:left;border-bottom:1px solid var(--border);transition:background .14s ease}.pf-item:last-child{border-bottom:none}.pf-item:hover{background:var(--surface-elevated)}.pf-item-ic{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--iris-ghost);color:var(--accent);flex-shrink:0}.pf-item-ic.danger{background:color-mix(in srgb,var(--danger) 14%,transparent);color:var(--danger)}.pf-item-label{flex:1;font-size:15px;font-weight:500}.pf-item-label.danger{color:var(--danger)}.pf-logout{margin-top:16px}.pf-version{text-align:center;color:var(--text-faint);font-size:11px;margin-top:18px}.streak-card{display:flex;align-items:center;gap:14px;background:color-mix(in srgb,var(--ember) 12%,transparent);border:1px solid color-mix(in srgb,var(--ember) 28%,transparent);border-radius:var(--r-lg);padding:18px;margin-bottom:16px}.streak-big{font-size:34px}.vault-card{display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);padding:14px;margin-bottom:10px;cursor:pointer}.vault-thumb{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;font-size:24px;background:var(--iris-ghost);flex-shrink:0}.vault-cat{font-size:10px;font-weight:700;letter-spacing:1.2px;color:var(--accent)}.vault-title{font-size:15px;font-weight:700;margin:2px 0}.vault-hook{font-size:12.5px;color:var(--text-muted)}.skill-row{margin-bottom:16px}.skill-head{display:flex;justify-content:space-between;margin-bottom:7px}.skill-name{font-size:15.5px;font-weight:700}.skill-score{font-weight:700}.skill-track{height:8px;border-radius:4px;background:var(--surface-elevated);overflow:hidden}.skill-fill{height:100%;border-radius:4px}.skill-meta{font-size:12.5px;color:var(--text-muted);margin-top:5px}.skill-summary{text-align:center;margin-bottom:22px}.skill-big{font-size:46px;font-weight:700;letter-spacing:-1.5px}.ach-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.ach-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px 14px;text-align:center}.ach-card.locked{opacity:.55}.ach-emoji{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;font-size:26px;margin:0 auto 10px;background:var(--iris-ghost);border:1px solid var(--iris-ghost-border)}.ach-title{font-size:14px;font-weight:700}.ach-desc{font-size:12px;color:var(--text-muted);margin-top:3px;line-height:1.4}.lb-row{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);padding:12px 14px;margin-bottom:8px}.lb-row.me{border-color:var(--iris-ghost-border);background:var(--iris-ghost)}.lb-rank{font-size:16px;font-weight:700;width:34px;text-align:center}.lb-name{flex:1;font-weight:700;font-size:15px}.lb-sub{font-size:12px;color:var(--text-muted)}.lb-xp{text-align:right;font-weight:700}.info-block{margin-bottom:18px}.info-block h3{font-size:16px;font-weight:700;margin-bottom:8px}.info-block p{font-size:15px;line-height:1.6;color:var(--text-dim)}.faq-item{border-bottom:1px solid var(--border);padding:14px 0;cursor:pointer}.faq-q{font-weight:700;font-size:15.5px;display:flex;justify-content:space-between;gap:12px}.faq-a{font-size:14.5px;line-height:1.6;color:var(--text-muted);margin-top:8px}:root,[data-theme=light]{--bg: #f8fafc;--surface: #ffffff;--surface-elevated: #f1f5f9;--card: #ffffff;--text: #111827;--text-dim: #374151;--text-muted: #6b7280;--text-faint: #9ca3af;--border: #e5e7eb;--border-hi: #cbd5e1;--accent: #6d5df6;--accent-strong: #4f46e5;--accent-soft: #eef2ff;--iris-300: #4f46e5;--iris-ghost: #eef2ff;--iris-ghost-border: #c7d2fe;--success: #059669;--warning: #d97706;--danger: #dc2626;--ember: #d97706;--mint: #059669;--rose: #dc2626;--soft-bg: #f8fafc;--soft-bg-2: #f1f5f9;--warning-bg: #fffbeb;--warning-border: #fde68a;--success-bg: #ecfdf5;--info-bg: #f5f3ff;--app-gradient: linear-gradient(160deg, #f8fafc 0%, #ffffff 45%, #eef2ff 100%);--shadow-card: 0 1px 2px rgba(16, 24, 40, .04), 0 6px 16px rgba(16, 24, 40, .06);--shadow-pop: 0 18px 48px rgba(16, 24, 40, .14);--r-xs: 10px;--r-sm: 14px;--r-md: 18px;--r-lg: 22px;--r-xl: 28px;color-scheme:light}[data-theme=dark]{--bg: #080a12;--surface: #111827;--surface-elevated: #1f2937;--card: #151b2e;--text: #f9fafb;--text-dim: #d1d5db;--text-muted: #9ca3af;--text-faint: #6b7280;--border: #2d3748;--border-hi: #3b4658;--accent: #a78bfa;--accent-strong: #7c3aed;--accent-soft: #241b3f;--iris-300: #c4b5fd;--iris-ghost: #241b3f;--iris-ghost-border: rgba(167, 139, 250, .36);--success: #34d399;--warning: #fbbf24;--danger: #fb7185;--ember: #fbbf24;--mint: #34d399;--rose: #fb7185;--soft-bg: rgba(255, 255, 255, .04);--soft-bg-2: rgba(255, 255, 255, .06);--warning-bg: rgba(251, 191, 36, .06);--warning-border: rgba(251, 191, 36, .3);--success-bg: rgba(52, 211, 153, .06);--info-bg: rgba(139, 92, 246, .1);--app-gradient: linear-gradient(160deg, #080a12 0%, #111827 55%, #17122b 100%);--shadow-card: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .45);--shadow-pop: 0 20px 60px rgba(0, 0, 0, .6);color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:Ubuntu,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background-color .25s ease,color .25s ease}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}input,textarea{font-family:inherit}::selection{background:var(--accent);color:#fff}.row{display:flex;align-items:center}.col{display:flex;flex-direction:column}.spread{justify-content:space-between}.center{align-items:center;justify-content:center}.flex1{flex:1}.gap-xs{gap:6px}.gap-sm{gap:10px}.gap-md{gap:14px}.gap-lg{gap:20px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;color:var(--text-muted)}.h1{font-size:clamp(26px,3vw,34px);font-weight:700;letter-spacing:-.6px;line-height:1.15}.h2{font-size:20px;font-weight:700;letter-spacing:-.3px}.muted{color:var(--text-muted)}.dim{color:var(--text-dim)}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-card)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 20px;border-radius:999px;font-size:15px;font-weight:700;transition:transform .12s ease,opacity .12s ease,background .15s ease;white-space:nowrap}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(120deg,var(--accent),#8b5cf6,var(--accent-strong));color:#fff;box-shadow:0 8px 22px -8px var(--accent-strong)}.btn-ghost{background:var(--surface);border:1px solid var(--border);color:var(--text);font-weight:500}.btn-soft{background:var(--iris-ghost);border:1px solid var(--iris-ghost-border);color:var(--accent)}.btn-block{width:100%}.field-label{font-size:13px;font-weight:500;color:var(--text-dim);margin-bottom:7px;display:block}.input{width:100%;height:50px;padding:0 15px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text);font-size:15px;outline:none;transition:border-color .15s ease,box-shadow .15s ease}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--iris-ghost)}.input::placeholder{color:var(--text-faint)}textarea.input{height:auto;min-height:110px;padding:12px 15px;resize:vertical;line-height:1.5}.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 13px;border-radius:999px;background:var(--surface);border:1px solid var(--border);font-size:13px;font-weight:500;color:var(--text-dim);cursor:pointer;transition:all .15s ease}.chip.active,.chip:hover{background:var(--iris-ghost);border-color:var(--iris-ghost-border);color:var(--accent)}.spinner{width:26px;height:26px;border-radius:50%;border:3px solid var(--iris-ghost);border-top-color:var(--accent);animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.fill-center{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:50vh;text-align:center}