:root{--v1-accent:#fb7185;--v1-accent-soft:#fb71851a;--v1-accent-strong:#e11d48;--v1-purple:#8b5cf6;--v1-purple-soft:#8b5cf61a;--v1-amber:#f59e0b;--v1-amber-soft:#f59e0b1a;--v1-blue:#3b82f6;--v1-blue-soft:#3b82f61a;--v1-success:#10b981;--v1-success-soft:#10b9811a;--v1-error:#ef4444;--v1-error-soft:#ef44441a;--v1-bg-primary:#faf7f2;--v1-bg-card:#fff;--v1-bg-soft:#f8fafc;--v1-bg-section:#f1ece3;--v1-text-primary:#0f172a;--v1-text-secondary:#64748b;--v1-text-muted:#94a3b8;--v1-border:#e2e8f0;--v1-border-soft:#f1f5f9;--v1-radius-sm:6px;--v1-radius:10px;--v1-radius-lg:14px;--v1-radius-xl:20px;--v1-radius-2xl:28px;--v1-shadow-sm:0 1px 2px #0f172a0a;--v1-shadow:0 4px 12px #0f172a0f;--v1-shadow-md:0 8px 24px #0f172a14;--v1-shadow-lg:0 16px 48px #0f172a1f}.v1-app-header{flex-direction:column;display:flex}.v1-app-header-row{border-bottom:1px solid var(--v1-border);background:#fff;justify-content:space-between;align-items:center;width:100%;padding:14px 24px;display:flex}.v1-trial-banner{color:#fff;background:var(--v1-accent);justify-content:center;align-items:center;gap:14px;width:100%;padding:8px 16px;font-size:13px;font-weight:500;display:flex}.v1-trial-banner-expired{background:var(--v1-error)}.v1-trial-banner-text{opacity:.95}.v1-trial-banner-cta{color:#fff;cursor:pointer;background:#ffffff1f;border:1px solid #ffffff8c;border-radius:999px;padding:3px 14px;font-size:12px;font-weight:600;transition:background .15s}.v1-trial-banner-cta:hover:not(:disabled){background:#ffffff3d}.v1-trial-banner-cta:disabled{opacity:.6;cursor:default}.v1-app-header .v1-logo{font-family:var(--font-display);color:var(--v1-text-primary);align-items:center;gap:10px;font-size:18px;font-weight:600;text-decoration:none;display:flex}.v1-app-header 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20px}.v1-hero-top{justify-content:space-between;align-items:center;margin-bottom:4px;display:flex}.v1-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--v1-text-muted);font-size:10px;font-weight:700}.v1-streak-chip{background:linear-gradient(135deg, var(--v1-amber-soft), var(--v1-amber));color:#92400e;border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:11px;font-weight:700;display:inline-flex}.v1-streak-chip .v1-flame{font-size:12px}.v1-hero-title{font-family:var(--font-display);color:var(--v1-text-primary);margin:4px 0;font-size:26px;font-weight:600;line-height:1.1}.v1-hero-title em{color:var(--v1-accent-strong);font-style:italic}.v1-hero-stats{grid-template-columns:2fr 1fr 1fr 1fr;gap:10px;margin-top:14px;display:grid}.v1-hero-stat{border:1px solid var(--v1-border);border-radius:var(--v1-radius-lg);background:#fff;padding:12px 16px}.v1-hero-stat.hero{background:linear-gradient(135deg, var(--v1-accent-soft) 0%, var(--v1-purple-soft) 100%);border-color:#fb718533}.v1-hero-stat-label{letter-spacing:.08em;text-transform:uppercase;color:var(--v1-text-muted);font-size:9px;font-weight:700}.v1-hero-stat.hero .v1-hero-stat-label{color:var(--v1-accent-strong)}.v1-hero-stat-num{font-family:var(--font-display);color:var(--v1-text-primary);margin-top:4px;font-size:22px;font-weight:600;line-height:1}.v1-hero-stat.hero .v1-hero-stat-num{font-size:28px}.v1-hero-stat-num small{color:var(--v1-text-muted);font-size:12px;font-weight:500;font-family:var(--font-body)}.v1-hero-stat-sub{color:var(--v1-text-secondary);font-size:10px;font-family:var(--font-body);font-feature-settings:"kern", "liga";text-rendering:optimizelegibility;unicode-bidi:plaintext;margin-top:4px}.v1-divider-row{background:var(--v1-bg-section);border-bottom:1px solid var(--v1-border);border-top:1px solid var(--v1-border);align-items:center;gap:12px;padding:8px 16px;display:flex}.v1-divider-row.d1{background:linear-gradient(90deg, var(--v1-accent-soft) 0%, var(--v1-bg-section) 100%)}.v1-divider-row.d2{background:linear-gradient(90deg, var(--v1-purple-soft) 0%, var(--v1-bg-section) 100%)}.v1-divider-row.d3{background:linear-gradient(90deg, var(--v1-amber-soft) 0%, var(--v1-bg-section) 100%)}.v1-divider-row.d4{background:linear-gradient(90deg, var(--v1-blue-soft) 0%, var(--v1-bg-section) 100%)}.v1-divider-row .v1-divider-tag{border-radius:3px;padding:2px 8px;font-family:JetBrains Mono,monospace;font-size:9px;font-weight:700}.v1-divider-row .v1-divider-tag.d1{background:var(--v1-accent-soft);color:var(--v1-accent-strong)}.v1-divider-row .v1-divider-tag.d2{background:var(--v1-purple-soft);color:var(--v1-purple)}.v1-divider-row .v1-divider-tag.d3{background:var(--v1-amber-soft);color:#b45309}.v1-divider-row .v1-divider-tag.d4{background:var(--v1-blue-soft);color:var(--v1-blue)}.v1-divider-row .v1-divider-name{font-family:var(--font-display);font-size:12px;font-weight:600}.v1-divider-row 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var(--v1-border);border-radius:var(--v1-radius);background:#fff;align-items:center;gap:10px;padding:8px 16px;display:flex}.v1-readiness .v1-r-label{letter-spacing:.1em;text-transform:uppercase;color:var(--v1-text-muted);flex-shrink:0;font-size:10px;font-weight:700}.v1-readiness-track{background:var(--v1-bg-section);border-radius:4px;flex:1;height:8px;position:relative;overflow:hidden}.v1-readiness-fill{background:linear-gradient(90deg, var(--v1-accent), var(--v1-purple));border-radius:4px;height:100%;transition:width .4s}.v1-readiness-marker{background:var(--v1-text-muted);opacity:.4;width:1px;height:12px;position:absolute;top:-2px}.v1-readiness-pct{color:var(--v1-text-primary);text-align:right;min-width:36px;font-family:JetBrains Mono,monospace;font-size:11px;font-weight:700}.v1-annot{background:linear-gradient(135deg, var(--v1-blue-soft) 0%, var(--v1-purple-soft) 100%);border-left:3px solid var(--v1-blue);border-radius:0 var(--v1-radius) var(--v1-radius) 0;color:var(--v1-text-primary);align-items:flex-start;gap:8px;margin-top:14px;padding:12px 16px;font-size:12px;line-height:1.5;display:flex}.v1-annot .v1-al{letter-spacing:.1em;text-transform:uppercase;color:#1d4ed8;flex-shrink:0;padding-top:1px;font-size:9px;font-weight:700}.v1-page{background:var(--v1-bg-primary);min-height:100vh;color:var(--v1-text-primary);font-family:var(--font-body);-webkit-font-smoothing:antialiased}.v1-page-body{max-width:1200px;margin:0 auto}.v1-empty{text-align:center;border:1px solid var(--v1-border);border-radius:var(--v1-radius-lg);background:#fff;padding:56px 32px}.v1-empty .v1-empty-h{font-family:var(--font-display);margin-bottom:6px;font-size:22px;font-weight:600}.v1-empty .v1-empty-sub{color:var(--v1-text-secondary);margin-bottom:20px;font-size:14px}.v1-skel{background:linear-gradient(90deg, var(--v1-bg-soft) 0%, var(--v1-border-soft) 50%, var(--v1-bg-soft) 100%);background-size:200% 100%;border-radius:6px;animation:1.4s ease-in-out infinite 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20px;font-size:13px;font-weight:600}.v1-btn-primary:hover{background:var(--v1-accent)}.v1-btn-secondary{color:var(--v1-text-secondary);border:1px solid var(--v1-border);border-radius:var(--v1-radius);font-family:var(--font-body);cursor:pointer;background:#fff;padding:10px 20px;font-size:13px;font-weight:600}.v1-btn-secondary:hover{background:var(--v1-bg-soft)}.v1-hl{background:var(--v1-amber-soft);color:#92400e;border-radius:2px;padding:1px 2px;font-weight:600}.v1-search-meta{background:var(--v1-blue-soft);border-bottom:1px solid var(--v1-border);color:var(--v1-text-primary);align-items:center;gap:8px;padding:10px 16px;font-size:12px;display:flex}.v1-search-meta strong{color:var(--v1-blue);font-weight:700}.v1-drill-wrap{background:var(--v1-bg-primary);min-height:100vh;color:var(--v1-text-primary);font-family:var(--font-body)}.v1-drill-head{z-index:20;border-bottom:1px solid var(--v1-border);box-shadow:var(--v1-shadow-sm);background:#fffffff5;align-items:center;gap:16px;padding:12px 24px;display:flex;position:sticky;top:0}.v1-drill-back{color:var(--v1-text-secondary);font-size:24px;line-height:1;text-decoration:none}.v1-drill-head-meta{flex-direction:column;gap:2px;min-width:130px;display:flex}.v1-drill-kicker,.v1-cuv-eyebrow{color:var(--v1-accent-strong);letter-spacing:.1em;text-transform:uppercase;font-size:10px;font-weight:700}.v1-drill-counter{color:var(--v1-text-secondary);font-family:JetBrains Mono,monospace;font-size:11px}.v1-drill-progress{background:var(--v1-bg-section);border-radius:3px;flex:1;height:6px;overflow:hidden}.v1-drill-progress-fill{background:var(--v1-accent);border-radius:3px;height:100%;transition:width .2s}.v1-drill-body{max-width:960px;margin:0 auto;padding:40px 24px 64px}.v1-cuv{max-width:880px;margin:0 auto}.v1-cuv-title{color:var(--v1-text-primary);font-family:var(--font-display);margin:8px 0 24px;font-size:32px;font-weight:600;line-height:1.15}.v1-cuv-block{background:var(--v1-bg-card);border:1px solid var(--v1-border);border-left:4px solid var(--v1-accent);border-radius:var(--v1-radius);box-shadow:var(--v1-shadow-sm);margin-bottom:12px;padding:18px 20px}.v1-cuv-block.accent-blue{border-left-color:var(--v1-blue)}.v1-cuv-block.accent-purple{border-left-color:var(--v1-purple)}.v1-cuv-block.accent-amber{border-left-color:var(--v1-amber)}.v1-cuv-label{color:var(--v1-text-secondary);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px;font-size:10px;font-weight:700}.v1-cuv-body{color:var(--v1-text-primary);font-size:14px;line-height:1.65}.v1-cuv-empty{color:var(--v1-text-muted);font-style:italic}.v1-cuv-list{flex-direction:column;gap:8px;margin:0;padding-left:20px;display:flex}.v1-drill-skip{color:var(--v1-text-secondary);align-items:center;gap:8px;margin:20px 0 16px;font-size:13px;display:flex}.v1-drill-skip input{accent-color:var(--v1-accent)}.v1-drill-cta{margin-top:4px}@media (max-width:640px){.v1-drill-head{padding:12px 16px}.v1-drill-head-meta{min-width:100px}.v1-drill-body{padding:28px 16px 48px}.v1-cuv-title{font-size:28px}}.sticky-header{background:linear-gradient(90deg, var(--v1-accent-soft), var(--v1-purple-soft));border-bottom:1px solid var(--v1-border);z-index:20;align-items:center;gap:12px;padding:10px 24px;display:flex;position:sticky;top:0}.sh-back{color:var(--v1-accent-strong);white-space:nowrap;align-items:center;gap:4px;font-size:12px;font-weight:600;text-decoration:none;display:inline-flex}.sh-spine{color:var(--v1-text-secondary);white-space:nowrap;flex:1;align-items:center;gap:8px;min-width:0;font-size:13px;display:flex;overflow:hidden}.sh-spine strong{color:var(--v1-text-primary);text-overflow:ellipsis;font-weight:600;overflow:hidden}.sh-spine .sh-pos{color:var(--v1-text-muted);font-size:12px}.pill-d{border-radius:4px;flex-shrink:0;padding:2px 8px;font-size:9px;font-weight:700}.pill-d.d1{color:#e11d48;background:#e11d481a}.pill-d.d2{color:#8b5cf6;background:#8b5cf61a}.pill-d.d3{color:#b45309;background:#f59e0b1a}.pill-d.d4{color:#1d4ed8;background:#3b82f61a}.sh-progress{color:var(--v1-text-secondary);flex-shrink:0;font-size:12px;font-weight:600}.sh-progress strong{color:var(--v1-text-primary);font-size:14px}.sh-end{border:1px solid var(--v1-border);color:var(--v1-text-secondary);cursor:pointer;background:#fff;border-radius:6px;flex-shrink:0;padding:6px 14px;font-size:11px;font-weight:600}.sh-end:hover{color:var(--v1-accent-strong);border-color:var(--v1-accent)}.drill-body{padding:28px 24px 48px}.drill-card{border:1px solid var(--v1-border);border-radius:var(--v1-radius-xl);max-width:720px;box-shadow:var(--v1-shadow);background:#fff;margin:0 auto;padding:32px}.drill-meta{flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:12px;display:flex}.drill-tag{text-transform:uppercase;letter-spacing:.04em;border-radius:999px;padding:3px 10px;font-size:11px;font-weight:700}.drill-tag.d1{color:#e11d48;background:#e11d481a}.drill-tag.d2{color:#8b5cf6;background:#8b5cf61a}.drill-tag.d3{color:#b45309;background:#f59e0b1a}.drill-tag.d4{color:#1d4ed8;background:#3b82f61a}.drill-tag.gray{background:var(--v1-bg-soft);color:var(--v1-text-secondary)}.drill-qmeta{align-items:center;gap:12px;margin-bottom:14px;display:flex}.drill-qnum{font-family:var(--font-display);color:var(--v1-text-muted);font-size:14px;font-weight:600}.drill-qtype{color:var(--v1-text-secondary);background:var(--v1-bg-soft);text-transform:capitalize;border-radius:4px;padding:2px 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