@import "https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500;600;700&display=swap";html,body,#root{width:100%;min-height:100vh;margin:0;padding:0}*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.ioe-root{--bg:#f7f6f2;--surface:#fff;--ink:#1b1b18;--ink-soft:#6b6a63;--border:#e4e2da;--accent:#2e4057;--accent-soft:#e8ecf1;--danger:#c1443d;--danger-soft:#f7e6e4;--success:#3a7d44;--success-soft:#e7f0e8;--warning:#c97a2b;--warning-soft:#fbebda;background:var(--bg);color:var(--ink);box-sizing:border-box;width:100%;min-height:100%;font-family:Inter,sans-serif}.ioe-root *,.ioe-root :before,.ioe-root :after{box-sizing:border-box}.ioe-root button{cursor:pointer;font-family:inherit}.ioe-root input,.ioe-root select{font-family:inherit}.display{font-family:Space Grotesk,sans-serif}.mono{font-family:JetBrains Mono,monospace}.setup-wrap{max-width:640px;margin:0 auto;padding:40px 24px 64px}.setup-eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px;font-family:JetBrains Mono,monospace;font-size:12px}.setup-title{letter-spacing:-.01em;margin:0 0 6px;font-size:30px;font-weight:700}.setup-sub{color:var(--ink-soft);margin:0 0 26px;font-size:15px;line-height:1.5}.format-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;margin-bottom:24px;padding:22px 24px}.format-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px;display:grid}.format-stat-num{font-family:Space Grotesk,sans-serif;font-size:20px;font-weight:700}.format-stat-label{color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em;margin-top:2px;font-size:11px}.section-row{align-items:center;gap:10px;margin-bottom:8px;font-size:13px;display:flex}.section-dot{border-radius:3px;flex-shrink:0;width:9px;height:9px}.section-name{flex-shrink:0;width:92px;font-weight:600}.section-marks{color:var(--ink-soft);font-family:JetBrains Mono,monospace;font-size:12px}.section-chapters{color:var(--ink-soft);font-size:12px}.field-block{margin-bottom:22px}.field-label{margin-bottom:10px;font-size:13px;font-weight:600;display:block}.select-box{border:1.5px solid var(--border);background:var(--surface);width:100%;color:var(--ink);border-radius:10px;padding:11px 14px;font-size:14px;font-weight:500}.adv-toggle{color:var(--ink-soft);background:0 0;border:none;align-items:center;gap:7px;margin-bottom:16px;padding:0;font-size:13px;font-weight:600;display:flex}.adv-panel{background:var(--surface);border:1px solid var(--border);border-radius:14px;margin-bottom:22px;padding:20px}.weight-row{align-items:center;gap:12px;margin-bottom:12px;display:flex}.weight-label{flex-shrink:0;width:100px;font-size:13px;font-weight:600}.weight-input{border:1.5px solid var(--border);border-radius:8px;width:64px;padding:6px 8px;font-family:JetBrains Mono,monospace;font-size:13px}.start-btn{background:var(--accent);color:#fff;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:8px;padding:16px;font-size:15px;font-weight:700;display:flex}.start-btn:disabled{opacity:.5;cursor:not-allowed}.error-banner{background:var(--danger-soft);color:var(--danger);border-radius:10px;align-items:flex-start;gap:8px;margin-top:14px;padding:12px 14px;font-size:13.5px;display:flex}.exam-topbar{border-bottom:1px solid var(--border);background:var(--surface);z-index:5;justify-content:space-between;align-items:center;padding:18px 28px;display:flex;position:sticky;top:0}.timer-block{align-items:center;gap:10px;display:flex}.timer-num{font-size:20px;font-weight:700}.time-bar-track{background:var(--border);z-index:5;border-radius:999px;width:100%;height:4px;position:sticky;top:63px;overflow:hidden}.time-bar-fill{height:100%;transition:width 1s linear,background .3s}.submit-btn{background:var(--ink);color:#fff;border:none;border-radius:8px;padding:10px 20px;font-size:13.5px;font-weight:700}.exam-shell{min-height:100%;display:flex}.exam-main{flex:1;min-width:0;padding:0 28px 28px}.q-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;margin-top:24px;padding:32px}.q-meta{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.subject-tag{color:#fff;text-transform:uppercase;letter-spacing:.04em;border-radius:999px;padding:5px 12px;font-size:12px;font-weight:700}.chapter-tag{color:var(--ink-soft);margin-bottom:16px;font-size:12px}.mark-btn{border:1.5px solid var(--border);color:var(--ink-soft);background:0 0;border-radius:999px;align-items:center;gap:6px;padding:6px 14px;font-size:12.5px;font-weight:600;display:flex}.mark-btn.on{background:var(--warning-soft);color:var(--warning);border-color:#0000}.q-text{margin-bottom:22px;font-size:18px;font-weight:600;line-height:1.5}.opt{border:1.5px solid var(--border);border-radius:12px;align-items:center;gap:12px;margin-bottom:10px;padding:14px 16px;font-size:14.5px;font-weight:500;transition:all .12s;display:flex}.opt:hover{border-color:var(--accent)}.opt.selected{border-color:var(--accent);background:var(--accent-soft)}.opt-letter{border:1.5px solid var(--border);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-family:JetBrains Mono,monospace;font-size:12px;font-weight:700;display:flex}.opt.selected .opt-letter{background:var(--accent);border-color:var(--accent);color:#fff}.nav-row{justify-content:space-between;margin-top:22px;display:flex}.nav-btn{background:var(--surface);border:1.5px solid var(--border);border-radius:10px;align-items:center;gap:6px;padding:10px 18px;font-size:13.5px;font-weight:600;display:flex}.nav-btn:disabled{opacity:.4;cursor:not-allowed}.nav-btn.primary{background:var(--accent);color:#fff;border-color:#0000}.palette-panel{border-left:1px solid var(--border);background:var(--surface);flex-shrink:0;width:270px;padding:24px 20px;overflow-y:auto}.palette-title{text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft);margin-bottom:14px;font-size:12px;font-weight:700}.palette-section-label{align-items:center;gap:6px;margin:14px 0 8px;font-size:11px;font-weight:700;display:flex}.palette-grid{grid-template-columns:repeat(5,1fr);gap:7px;display:grid}.palette-cell{aspect-ratio:1;border:1.5px solid var(--border);background:var(--surface);color:var(--ink-soft);border-radius:7px;justify-content:center;align-items:center;font-family:JetBrains Mono,monospace;font-size:11px;font-weight:700;display:flex;position:relative}.palette-cell.answered{color:#fff;border-color:#0000}.palette-cell.marked{border-color:var(--warning)}.palette-cell.marked:after{content:"";background:var(--warning);border-radius:50%;width:7px;height:7px;position:absolute;top:-3px;right:-3px}.palette-cell.current{outline:2.5px solid var(--ink);outline-offset:2px}.gen-status{color:var(--ink-soft);align-items:center;gap:8px;margin-top:18px;font-size:12px;display:flex}.results-wrap{max-width:780px;margin:0 auto;padding:44px 24px 80px}.score-hero{background:var(--ink);color:#fff;border-radius:20px;margin-bottom:28px;padding:36px}.score-num{font-family:Space Grotesk,sans-serif;font-size:52px;font-weight:700;line-height:1}.score-stats{grid-template-columns:repeat(4,1fr);gap:18px;margin-top:24px;display:grid}.stat-num{font-size:22px;font-weight:700}.stat-label{color:#fff9;text-transform:uppercase;letter-spacing:.05em;margin-top:2px;font-size:11.5px}.subj-bar-row{align-items:center;gap:12px;margin-bottom:14px;display:flex}.subj-bar-label{flex-shrink:0;width:110px;font-size:13px;font-weight:600}.subj-bar-track{background:var(--border);border-radius:999px;flex:1;height:10px;overflow:hidden}.subj-bar-fill{border-radius:999px;height:100%}.subj-bar-frac{text-align:right;width:48px;color:var(--ink-soft);flex-shrink:0;font-family:JetBrains Mono,monospace;font-size:12px}.review-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;margin-bottom:14px;padding:22px}.review-head{align-items:center;gap:10px;margin-bottom:10px;display:flex}.review-q{margin-bottom:12px;font-size:15px;font-weight:600;line-height:1.5}.review-opt{align-items:center;gap:10px;padding:8px 0;font-size:13.5px;display:flex}.review-explain{background:var(--bg);color:var(--ink-soft);border-radius:10px;margin-top:12px;padding:12px 14px;font-size:13px;line-height:1.5}.restart-btn{background:var(--accent);color:#fff;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:8px;padding:15px;font-size:14.5px;font-weight:700;display:flex}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}