/* aiGodess NPP (NEET Potential Profile) CSS v1 */
/* Clone of MLP-physics.css — Purple theme replacing Orange */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@500;700&family=Sora:wght@400;500;600;700;800;900&family=Orbitron:wght@700;900&display=swap');

:root {
  --bg:        #0a0c10;
  --bg-card:   #12161e;
  --bg-card2:  #181d27;
  --bg-card3:  #1e2535;
  --border:    #252d3d;
  --border2:   #2d3748;
  --accent:    #7c3aed;   /* PURPLE — NPP identity */
  --acc2:      #8b5cf6;   /* PURPLE lighter */
  --correct:   #22c55e;
  --wrong:     #ef4444;
  --review:    #a855f7;
  --revealed:  #4b5563;
  --text:      #cbd5e1;
  --text-dim:  #64748b;
  --text-bright:#f1f5f9;
  --header-h:  96px;
  --omr-w:     340px;
  --font:      'Sora', system-ui, sans-serif;
  --mono:      'JetBrains Mono', monospace;
  --orb:       'Orbitron', sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.6;overflow:hidden}
a{color:var(--accent);text-decoration:none}
button{cursor:pointer;font-family:var(--font)}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:2px}

/* ═══════════════════════════════════
   HEADER — 2 ROWS
═══════════════════════════════════ */
.main-header{
  position:fixed;top:0;left:0;right:0;
  height:var(--header-h);
  background:var(--bg-card);
  border-bottom:1px solid var(--border);
  z-index:200;
  display:flex;flex-direction:column;
}

/* ROW 1 */
.header-row1{
  display:flex;align-items:center;
  height:50px;
  padding:0 16px;
  gap:16px;
  border-bottom:1px solid var(--border);
  background:linear-gradient(135deg,#12161e,#0f1520);
  overflow:hidden;
}

.brand-logo{
  display:flex;align-items:center;gap:10px;
  flex-shrink:0;text-decoration:none;
}
.brand-logo img{
  width:42px;height:42px;
  border-radius:50%;
  border:2px solid var(--accent);
  object-fit:cover;
  box-shadow:0 0 12px rgba(124,58,237,.4);
}
.brand-name{
  font-size:20px;font-weight:900;
  color:var(--accent);
  letter-spacing:-0.5px;
  font-family:var(--font);
  white-space:nowrap;
}
.brand-mlp{
  font-size:11px;color:var(--text-dim);
  white-space:nowrap;font-weight:600;
}

/* ANIMATED BANNER */
.mlp-banner{
  flex:1;overflow:hidden;
  height:34px;
  background:linear-gradient(135deg,rgba(124,58,237,.08),rgba(139,92,246,.08),rgba(34,197,94,.08));
  border:1px solid rgba(124,58,237,.2);
  border-radius:8px;
  display:flex;align-items:center;
  position:relative;
}
.mlp-banner::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:40px;
  background:linear-gradient(90deg,var(--bg-card),transparent);z-index:1;
}
.mlp-banner::after{
  content:'';position:absolute;right:0;top:0;bottom:0;width:40px;
  background:linear-gradient(270deg,var(--bg-card),transparent);z-index:1;
}
.banner-track{
  display:flex;align-items:center;
  white-space:nowrap;
  animation:scroll-banner 30s linear infinite;
  padding:0 20px;
}
@keyframes scroll-banner{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.banner-text{font-size:13px;font-weight:600;color:var(--text);letter-spacing:.02em;}
.banner-highlight{color:#a855f7;font-weight:800;font-family:var(--orb);font-size:11px;letter-spacing:.08em;text-shadow:0 0 10px rgba(168,85,247,.5);}
.banner-accent{color:#22d3ee;font-weight:700;}
.banner-gold{color:#fbbf24;font-weight:700;text-shadow:0 0 8px rgba(251,191,36,.3);}

/* ROW 2 */
.header-row2{
  display:flex;align-items:center;
  height:46px;padding:0 16px;gap:12px;
}

.session-controls{display:flex;align-items:center;gap:12px;flex:1}

/* NPP specific controls */
.npp-level-badge{
  display:flex;align-items:center;gap:8px;
  background:rgba(124,58,237,.15);
  border:1px solid rgba(124,58,237,.3);
  border-radius:8px;padding:5px 14px;
  font-size:13px;font-weight:700;color:var(--acc2);
  white-space:nowrap;
}
.level-icon{font-size:14px;}
.npp-info-pill{
  font-size:12px;color:var(--text-dim);
  background:var(--bg-card2);
  border:1px solid var(--border2);
  border-radius:6px;padding:4px 12px;
  white-space:nowrap;
}

.start-btn{
  padding:6px 18px;
  background:linear-gradient(135deg,var(--accent),var(--acc2));
  color:#fff;border:none;border-radius:7px;
  font-size:13px;font-weight:800;
  white-space:nowrap;flex-shrink:0;
  box-shadow:0 2px 10px rgba(124,58,237,.3);
  transition:all .2s;
}
.start-btn:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(124,58,237,.4)}
.start-btn:disabled{background:#374151;color:#6b7280;cursor:not-allowed;transform:none;box-shadow:none}

.session-status{display:flex;align-items:center;gap:10px;flex:1;}
.status-pill{display:flex;align-items:center;gap:5px;font-size:13px;white-space:nowrap}
.pill-label{color:var(--text-dim);font-size:12px}
.pill-val{font-weight:700;color:var(--text-bright);font-family:var(--mono);font-size:14px}
.score-val{color:var(--accent)}
.progress-track{flex:1;height:6px;background:var(--border2);border-radius:3px;overflow:hidden;min-width:60px}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--acc2));border-radius:3px;transition:width .4s ease}
.subject-tracker{background:var(--bg-card2);border:1px solid var(--border2);border-radius:6px;padding:3px 10px;}

.timer-box{
  display:flex;align-items:center;gap:6px;
  background:var(--bg-card2);border:1px solid var(--border2);
  border-radius:8px;padding:4px 10px;
  font-family:var(--mono);font-size:14px;font-weight:700;
  color:var(--text-bright);white-space:nowrap;
}
.timer-box.warning{color:var(--accent);border-color:rgba(124,58,237,.4)}
.timer-box.danger{color:var(--wrong);border-color:rgba(239,68,68,.4);animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.timer-icon{font-size:13px;}

.btn-ghost{padding:4px 10px;border-radius:6px;font-size:12px;font-weight:600;border:1px solid var(--border2);background:transparent;color:var(--text-dim);transition:all .2s;white-space:nowrap}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-danger{padding:4px 12px;border-radius:6px;font-size:12px;font-weight:700;border:none;background:#dc2626;color:#fff;transition:all .2s;white-space:nowrap}
.btn-danger:hover{background:#b91c1c}

/* ═══════════════════════════════════
   WELCOME SCREEN
═══════════════════════════════════ */
.welcome-wrap{
  padding-top:var(--header-h);
  display:grid;
  grid-template-columns:1fr var(--omr-w);
  height:100vh;
  overflow:hidden;
}
.welcome-card{
  overflow-y:auto;
  padding:24px;
  position:relative;
}
.welcome-glow{position:absolute;top:-60px;right:-60px;width:200px;height:200px;background:radial-gradient(circle,rgba(124,58,237,.12),transparent 70%);pointer-events:none}
.welcome-glow2{position:absolute;bottom:-40px;left:-40px;width:150px;height:150px;background:radial-gradient(circle,rgba(139,92,246,.08),transparent 70%);pointer-events:none}

/* HERO */
.wc-hero{
  display:grid;grid-template-columns:1fr 1fr;
  border:1px solid var(--border);border-radius:14px;
  overflow:hidden;margin-bottom:16px;
  background:var(--bg-card);
}
.wc-hero-left{padding:28px;border-right:1px solid var(--border);}
.wc-badge{
  display:inline-block;
  padding:4px 12px;border-radius:6px;
  background:rgba(124,58,237,.15);
  border:1px solid rgba(124,58,237,.3);
  color:var(--acc2);font-size:11px;font-weight:800;
  letter-spacing:.06em;text-transform:uppercase;
  margin-bottom:12px;
}
.wc-title{
  font-size:36px;font-weight:900;
  color:var(--text-bright);
  line-height:1.1;letter-spacing:-1px;
  margin-bottom:4px;
}
.wc-subtitle-mlp{font-size:22px;font-weight:900;margin-bottom:6px;letter-spacing:.02em;}
.wc-mlp-highlight{
  color:var(--accent);
  font-family:var(--orb);
  font-size:40px;font-weight:900;
  letter-spacing:.05em;
  text-shadow:0 0 20px rgba(124,58,237,.5),0 0 40px rgba(124,58,237,.2);
  display:inline-block;
  animation:mlp-glow 3s ease-in-out infinite;
}
@keyframes mlp-glow{
  0%,100%{text-shadow:0 0 20px rgba(124,58,237,.5),0 0 40px rgba(124,58,237,.2)}
  50%{text-shadow:0 0 30px rgba(124,58,237,.8),0 0 60px rgba(124,58,237,.4),0 0 80px rgba(124,58,237,.1)}
}
.wc-tagline{font-size:13px;color:var(--text-dim);margin-bottom:20px;font-style:italic}
.wc-stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.wc-stat{text-align:center;padding:10px 6px;background:rgba(0,0,0,.3);border-radius:8px;border:1px solid var(--border)}
.wc-stat-num{display:block;font-size:18px;font-weight:900;color:var(--accent);font-family:var(--mono);line-height:1}
.wc-stat-lbl{display:block;font-size:9px;color:var(--text-dim);margin-top:3px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}

.wc-hero-right{padding:28px;}
.wc-about{display:flex;flex-direction:column;gap:10px;}
.wc-about-title{font-size:11px;font-weight:800;color:var(--text-dim);letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px;}
.wc-about p{font-size:13px;color:var(--text);line-height:1.7;}
.wc-about strong{color:var(--text-bright);font-weight:700;}
.wc-about em{color:var(--acc2);font-style:italic;}

/* STUDENT MESSAGE — NPP unique section */
.wc-student-message{
  display:flex;gap:16px;
  background:linear-gradient(135deg,rgba(124,58,237,.06),rgba(124,58,237,.02));
  border:1px solid rgba(124,58,237,.2);
  border-radius:12px;
  padding:20px;
  margin-bottom:16px;
  border-left:4px solid var(--accent);
}
.wc-message-icon{font-size:28px;flex-shrink:0;padding-top:2px;}
.wc-message-body{flex:1;}
.wc-message-title{
  font-size:14px;font-weight:800;
  color:var(--text-bright);
  margin-bottom:12px;
  letter-spacing:-.2px;
}
.wc-message-text{display:flex;flex-direction:column;gap:10px;}
.wc-message-text p{font-size:13px;color:var(--text);line-height:1.75;}
.wc-message-text strong{color:var(--text-bright);font-weight:700;}
.wc-message-text em{color:var(--acc2);font-style:italic;}
.wc-message-closing{
  font-size:13px;color:var(--text-bright);
  font-weight:600;
  padding:10px 14px;
  background:rgba(124,58,237,.1);
  border-radius:8px;
  border:1px solid rgba(124,58,237,.2);
}

/* HOW TO START */
.wc-start-guide{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px;
  background:linear-gradient(135deg,rgba(124,58,237,.06),rgba(124,58,237,.02));
  border-bottom:1px solid var(--border);
  border-radius:10px;
  margin-bottom:16px;
}
.wc-start-arrow{font-size:28px;color:var(--accent);animation:bounce-up 1s ease-in-out infinite;margin-top:-4px;flex-shrink:0;}
@keyframes bounce-up{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.wc-start-steps{flex:1;}
.wc-start-title{font-size:14px;font-weight:800;color:var(--text-bright);margin-bottom:10px;}
.wc-start-row{display:flex;align-items:center;gap:10px;margin-bottom:7px;}
.wc-step-badge{
  width:22px;height:22px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--acc2));
  color:#fff;font-size:11px;font-weight:800;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.wc-step-text{font-size:13px;color:var(--text);}
.wc-step-text strong{color:var(--text-bright);}
.wc-start-btn-label{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 12px;border-radius:6px;
  background:linear-gradient(135deg,var(--accent),var(--acc2));
  color:#fff;font-size:12px;font-weight:800;
  animation:btn-pulse 2s ease-in-out infinite;
  box-shadow:0 2px 10px rgba(124,58,237,.4);
}
@keyframes btn-pulse{0%,100%{box-shadow:0 2px 10px rgba(124,58,237,.4)}50%{box-shadow:0 2px 20px rgba(124,58,237,.7)}}

/* HOW IT WORKS */
.wc-how{padding:0 0 16px 0;border-bottom:1px solid var(--border);margin-bottom:16px;}
.wc-how-title{font-size:12px;font-weight:800;color:var(--text-dim);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;}
.wc-how-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.wc-how-item{padding:14px;background:var(--bg-card2);border-radius:10px;border:1px solid var(--border);}
.wc-how-icon{font-size:20px;margin-bottom:8px;}
.wc-how-head{font-size:12px;font-weight:800;color:var(--text-bright);margin-bottom:5px;}
.wc-how-body{font-size:11px;color:var(--text-dim);line-height:1.6;}
.wc-how-body strong{color:var(--text);font-weight:700;}
.wc-how-body em{color:var(--accent);font-style:normal;font-weight:600;}

/* BOTTOM */
.wc-bottom{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:0;border:1px solid var(--border);border-radius:10px;overflow:hidden;background:var(--bg-card);}
.wc-scoring,.wc-omr-key,.wc-tips{padding:18px 20px;}
.wc-scoring{border-right:1px solid var(--border);}
.wc-omr-key{border-right:1px solid var(--border);}
.wc-mini-title{font-size:10px;font-weight:800;color:var(--text-dim);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;}
.wc-score-row{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:12px;color:var(--text);}
.wc-score-pill{display:inline-flex;align-items:center;justify-content:center;width:28px;padding:2px 4px;border-radius:5px;font-size:11px;font-weight:900;font-family:var(--mono);text-align:center;}
.wc-score-pill.correct{background:rgba(34,197,94,.15);color:#22c55e;border:1px solid rgba(34,197,94,.3);}
.wc-score-pill.wrong{background:rgba(239,68,68,.15);color:#ef4444;border:1px solid rgba(239,68,68,.3);}
.wc-score-pill.zero{background:rgba(100,116,139,.1);color:#64748b;border:1px solid var(--border);}
.wc-omr-row{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:12px;color:var(--text);}
.wc-bub{width:22px;height:22px;border-radius:4px;display:inline-flex;align-items:center;justify-content:center;font-size:8px;font-weight:900;color:#fff;flex-shrink:0;font-family:var(--mono);}
.wc-tip{font-size:11px;color:var(--text-dim);margin-bottom:5px;line-height:1.5;}
.wc-tip strong{color:var(--text);font-weight:700;}

/* ═══ EXAM LAYOUT ═══ */
.exam-layout{
  display:grid;
  grid-template-columns:1fr var(--omr-w);
  height:calc(100vh - var(--header-h));
  padding-top:var(--header-h);
  overflow:hidden;
}

/* QUESTION PANEL */
.question-panel{
  overflow-y:auto;
  padding:20px 24px;
  display:flex;flex-direction:column;gap:16px;
}

.q-header{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:8px;
}
.subject-badge{
  padding:4px 12px;border-radius:6px;
  background:rgba(124,58,237,.15);
  border:1px solid rgba(124,58,237,.3);
  color:var(--acc2);font-size:11px;font-weight:800;
  letter-spacing:.06em;
}
.q-num{font-size:14px;font-weight:700;color:var(--text-bright);flex:1;}
.q-score{font-size:13px;color:var(--text-dim);white-space:nowrap;}
.q-score strong{color:var(--accent);font-family:var(--mono);}

.question-text{
  font-size:16px;line-height:1.75;
  color:var(--text-bright);
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:10px;
  padding:20px 22px;
  font-weight:500;
}

/* OPTIONS */
.options-list{display:flex;flex-direction:column;gap:10px;}
.option-btn{
  display:flex;align-items:center;gap:14px;
  width:100%;padding:14px 16px;
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:10px;color:var(--text);
  font-size:14px;font-family:var(--font);
  text-align:left;transition:all .15s;
}
.option-btn:hover{border-color:var(--accent);background:rgba(124,58,237,.06);}
.option-btn.selected{border-color:var(--accent);background:rgba(124,58,237,.12);color:var(--text-bright);}
.option-btn.correct{border-color:var(--correct);background:rgba(34,197,94,.1);color:var(--text-bright);}
.option-btn.wrong{border-color:var(--wrong);background:rgba(239,68,68,.1);color:var(--text-bright);}
.option-btn:disabled{cursor:default;}
.option-label{
  width:28px;height:28px;border-radius:6px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--bg-card2);border:1px solid var(--border2);
  font-size:12px;font-weight:800;color:var(--text-dim);
  font-family:var(--mono);
}
.option-btn.selected .option-label{background:var(--accent);color:#fff;border-color:var(--accent);}
.option-btn.correct .option-label{background:var(--correct);color:#fff;border-color:var(--correct);}
.option-btn.wrong .option-label{background:var(--wrong);color:#fff;border-color:var(--wrong);}
.option-text{flex:1;line-height:1.5;}

/* FEEDBACK */
.feedback-box{
  display:flex;align-items:flex-start;gap:10px;
  padding:12px 16px;border-radius:8px;
  background:rgba(34,197,94,.08);border:1px solid rgba(34,197,94,.2);
  font-size:13px;
}
.feedback-box.correct-fb{background:rgba(34,197,94,.08);border-color:rgba(34,197,94,.3);color:#22c55e;}
.feedback-box.wrong-fb{background:rgba(239,68,68,.08);border-color:rgba(239,68,68,.3);color:#ef4444;}
.feedback-icon{font-size:16px;flex-shrink:0;}
.feedback-msg{color:var(--text);line-height:1.5;}

/* ACTION BAR */
.action-bar{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.action-btn{
  padding:10px 16px;border-radius:8px;
  font-size:13px;font-weight:700;
  border:1px solid var(--border2);
  background:var(--bg-card2);
  color:var(--text);
  transition:all .15s;
  display:inline-flex;align-items:center;gap:6px;
}
.save-btn{background:linear-gradient(135deg,var(--accent),var(--acc2));color:#fff;border:none;box-shadow:0 2px 8px rgba(124,58,237,.3);}
.save-btn:hover{box-shadow:0 4px 12px rgba(124,58,237,.4);transform:translateY(-1px);}
.next-btn,.save-next-btn{background:linear-gradient(135deg,var(--correct),#16a34a);color:#fff;border:none;}
.tryagain-btn{background:rgba(124,58,237,.1);border-color:rgba(124,58,237,.3);color:var(--acc2);}
.clear-btn:hover{border-color:var(--wrong);color:var(--wrong);}
.mark-next-btn:hover{border-color:var(--review);color:var(--review);}
.show-answer-btn:hover{border-color:#22d3ee;color:#22d3ee;}
.submit-btn{
  margin-left:auto;
  background:linear-gradient(135deg,#dc2626,#b91c1c);
  color:#fff;border:none;
  box-shadow:0 2px 8px rgba(220,38,38,.3);
}
.submit-btn:hover{box-shadow:0 4px 12px rgba(220,38,38,.4);transform:translateY(-1px);}

/* EXPLANATION */
.explanation-box{
  background:var(--bg-card2);border:1px solid var(--border);
  border-radius:10px;padding:16px;
}
.explanation-label{font-size:11px;font-weight:800;color:var(--text-dim);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;}
.explanation-text{font-size:13px;color:var(--text);line-height:1.7;}

/* HELP PANEL */
.help-panel{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:10px;overflow:hidden;
  font-size:13px;
}
.help-header{
  display:flex;align-items:center;gap:8px;
  padding:12px 16px;
  background:rgba(124,58,237,.06);
  border-bottom:1px solid var(--border);
  font-weight:700;color:var(--text-bright);
}
.help-icon{font-size:14px;}
.help-body{padding:16px;display:flex;flex-direction:column;gap:16px;}
.help-section{}
.help-section-title{font-size:11px;font-weight:800;color:var(--accent);letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px;}
.help-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:7px;}
.help-btn-label{
  padding:3px 8px;border-radius:5px;
  font-size:11px;font-weight:700;white-space:nowrap;flex-shrink:0;
}
.help-btn-label.save{background:rgba(124,58,237,.15);color:var(--acc2);}
.help-btn-label.tryagain{background:rgba(124,58,237,.1);color:var(--acc2);}
.help-btn-label.showanswer{background:rgba(34,211,238,.1);color:#22d3ee;}
.help-btn-label.markreview{background:rgba(168,85,247,.1);color:#a855f7;}
.help-btn-label.clear{background:rgba(239,68,68,.1);color:#ef4444;}
.help-text{font-size:12px;color:var(--text-dim);line-height:1.6;}
.help-text em{color:var(--text);}
.help-omr-legend{display:flex;flex-direction:column;gap:6px;}
.help-omr-item{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-dim);}
.help-bub{
  width:24px;height:24px;border-radius:4px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:8px;font-weight:900;color:#fff;flex-shrink:0;font-family:var(--mono);
}
.help-bub.current{background:var(--accent);}
.help-bub.correct{background:var(--correct);}
.help-bub.wrong{background:var(--wrong);}
.help-bub.review{background:var(--review);}
.help-bub.revealed{background:var(--revealed);}
.help-bub.unattempted{background:var(--border2);color:var(--text-dim);}
.help-scoring{display:flex;flex-direction:column;gap:4px;}
.help-score-item{padding:5px 10px;border-radius:5px;font-size:12px;font-family:var(--mono);}
.correct-score{background:rgba(34,197,94,.1);color:#22c55e;}
.wrong-score{background:rgba(239,68,68,.1);color:#ef4444;}
.zero-score{background:rgba(100,116,139,.08);color:var(--text-dim);}
.help-tip{
  padding:10px 14px;
  background:rgba(124,58,237,.06);
  border:1px solid rgba(124,58,237,.15);
  border-radius:8px;font-size:12px;color:var(--text-dim);line-height:1.6;
}
.help-tip strong{color:var(--text-bright);}

/* ═══ OMR PANEL (identical to MLP) ═══ */
.omr-panel{
  border-left:1px solid var(--border);
  background:var(--bg-card);
  display:flex;flex-direction:column;
  overflow:hidden;
  height:100%;
}
.omr-header{
  padding:12px 16px;
  border-bottom:1px solid var(--border);
  background:rgba(124,58,237,.06);
}
.omr-title{font-size:11px;font-weight:800;color:var(--accent);letter-spacing:.1em;text-transform:uppercase;}
.omr-topic{
  padding:8px 16px;
  font-size:12px;color:var(--text-dim);
  border-bottom:1px solid var(--border);
  font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.omr-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-bottom:1px solid var(--border);
}
.omr-stat{
  padding:8px 4px;text-align:center;
  border-right:1px solid var(--border);
}
.omr-stat:last-child{border-right:none;}
.omr-num{font-size:18px;font-weight:900;font-family:var(--mono);color:var(--text-bright);}
.omr-lbl{font-size:9px;color:var(--text-dim);font-weight:600;text-transform:uppercase;letter-spacing:.04em;}
.stat-correct .omr-num{color:var(--correct);}
.stat-wrong .omr-num{color:var(--wrong);}
.stat-review .omr-num{color:var(--review);}

.omr-grid{
  flex:1;overflow-y:auto;
  padding:10px;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:5px;
  align-content:start;
}

/* OMR BUBBLES — all 5 states (identical to MLP, purple accent) */
.omr-bubble{
  width:100%;aspect-ratio:1;border-radius:6px;
  background:var(--bg-card2);border:1px solid var(--border2);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .15s;
  font-family:var(--mono);font-size:10px;color:var(--text-dim);
}
.omr-bubble:hover{border-color:var(--accent);color:var(--text);}
.omr-bubble.current{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 0 8px rgba(124,58,237,.4);}
.omr-bubble.answered{background:var(--correct);border-color:var(--correct);color:#fff;}
.omr-bubble.wrong{background:var(--wrong);border-color:var(--wrong);color:#fff;}
.omr-bubble.review{background:var(--review);border-color:var(--review);color:#fff;}
.omr-bubble.revealed{background:var(--revealed);border-color:var(--revealed);color:#fff;}
.bub-num{font-size:9px;font-weight:900;line-height:1;}

.omr-legend{
  display:flex;justify-content:space-around;
  padding:8px;border-top:1px solid var(--border);
  flex-wrap:wrap;gap:4px;
}
.ol{display:flex;align-items:center;gap:4px;font-size:10px;color:var(--text-dim);}
.old{width:12px;height:12px;border-radius:3px;flex-shrink:0;}
.old.current{background:var(--accent);}
.old.correct{background:var(--correct);}
.old.wrong{background:var(--wrong);}
.old.review{background:var(--review);}
.old.revealed{background:var(--revealed);}

.omr-nav{
  display:flex;gap:8px;padding:10px;
  border-top:1px solid var(--border);
}
.omr-btn{
  flex:1;padding:8px;border-radius:7px;
  font-size:13px;font-weight:700;
  background:var(--bg-card2);border:1px solid var(--border2);
  color:var(--text);transition:all .15s;
}
.omr-btn:hover{border-color:var(--accent);color:var(--accent);}
.omr-btn-accent{
  background:linear-gradient(135deg,var(--accent),var(--acc2));
  color:#fff;border:none;
  box-shadow:0 2px 8px rgba(124,58,237,.3);
}
.omr-btn-accent:hover{box-shadow:0 4px 12px rgba(124,58,237,.4);}

/* RESULT WRAP */
.result-wrap{
  padding-top:var(--header-h);
  overflow-y:auto;
  height:100vh;
}

/* TOAST */
.toast{
  position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);
  background:#1e293b;border:1px solid var(--border2);
  color:var(--text-bright);padding:10px 20px;
  border-radius:8px;font-size:13px;font-weight:600;
  transition:transform .3s ease;z-index:999;white-space:nowrap;
}
.toast.show{transform:translateX(-50%) translateY(0);}

/* MOBILE */
@media(max-width:768px){
  html,body{overflow:auto !important}
  .main-header{height:auto !important;position:relative !important}
  .header-row1{height:auto !important;padding:10px 14px !important;flex-wrap:wrap;gap:8px;}
  .header-row2{height:auto !important;padding:8px 14px !important;flex-direction:column !important;align-items:stretch !important;gap:8px !important;}
  .session-controls{flex-direction:column !important;gap:8px !important;width:100% !important;}
  .npp-level-badge,.npp-info-pill{width:100% !important;justify-content:center !important;}
  .start-btn{width:100% !important;padding:10px !important;font-size:14px !important;}
  .welcome-wrap{grid-template-columns:1fr !important;height:auto !important;}
  .exam-layout{grid-template-columns:1fr !important;height:auto !important;padding-top:0 !important;}
  .question-panel{height:auto !important;overflow:visible !important;padding:12px !important;}
  .omr-panel{position:relative !important;height:auto !important;border-left:none !important;border-top:1px solid var(--border) !important;}
  .wc-hero{grid-template-columns:1fr !important;}
  .wc-hero-right{border-top:1px solid var(--border);border-right:none !important;}
  .wc-how-grid{grid-template-columns:1fr 1fr !important;}
  .wc-bottom{grid-template-columns:1fr !important;}
  .wc-scoring,.wc-omr-key{border-right:none !important;border-bottom:1px solid var(--border) !important;}
  .wc-stats-row{grid-template-columns:repeat(2,1fr) !important;}
  .wc-title{font-size:22px !important;}
  .action-bar{flex-wrap:wrap !important;gap:6px !important;}
  .action-btn{font-size:12px !important;padding:8px 12px !important;}
  .submit-btn{margin-left:0 !important;width:100% !important;}
}
@media(max-width:480px){
  .wc-how-grid{grid-template-columns:1fr !important;}
}