/* IQ-TEST v2 - Professional Light Design */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --blue:#2563eb;--blue-d:#1d4ed8;--purple:#7c3aed;
  --green:#059669;--red:#dc2626;--amber:#d97706;
  --bg:#f0f4ff;--card:#fff;--border:#e2e8f0;
  --text:#0f172a;--sub:#475569;--light:#94a3b8;
  --r:14px;
  --sh:0 1px 3px rgba(0,0,0,.06),0 4px 16px rgba(15,37,87,.08);
  --sh-lg:0 8px 32px rgba(15,37,87,.12),0 2px 8px rgba(15,37,87,.06);
  --sh-xl:0 20px 60px rgba(15,37,87,.14),0 4px 20px rgba(15,37,87,.07);
}
html{-webkit-font-smoothing:antialiased}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg);color:var(--text);min-height:100vh;
  display:flex;flex-direction:column;line-height:1.5}
a{color:var(--blue)}

/* ── NAVBAR ── */
.navbar{background:#fff;border-bottom:1px solid var(--border);padding:0 28px;
  height:60px;display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:200;
  box-shadow:0 1px 0 var(--border),0 2px 8px rgba(15,37,87,.04)}
.nav-brand{font-size:16px;font-weight:800;color:var(--text);text-decoration:none;
  letter-spacing:-.3px;display:flex;align-items:center;gap:6px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{color:var(--sub);text-decoration:none;font-size:14px;font-weight:500;
  padding:6px 12px;border-radius:8px;transition:background .15s,color .15s}
.nav-links a:hover{background:var(--bg);color:var(--text)}
.btn-nav{background:linear-gradient(135deg,var(--blue-d),var(--purple))!important;
  color:#fff!important;padding:7px 16px!important;border-radius:8px!important;
  font-weight:700!important;font-size:13px!important;
  box-shadow:0 2px 8px rgba(37,99,235,.28)}
.nav-sep{color:var(--border);padding:0 4px}
.nav-user{font-size:13px;font-weight:600;color:var(--sub);padding:0 8px}
.nav-logout{color:var(--red)!important}
.nav-logout:hover{background:#fef2f2!important}

/* ── AUTH ── */
.auth-bg{flex:1;display:flex;align-items:center;justify-content:center;
  padding:48px 16px;
  background:linear-gradient(150deg,#eef2ff 0%,#f8fafc 45%,#f0f7ff 100%)}
.auth-card{background:var(--card);border-radius:20px;box-shadow:var(--sh-xl);
  max-width:420px;width:100%;overflow:hidden;border:1px solid rgba(226,232,240,.8)}
.auth-top-bar{height:4px;
  background:linear-gradient(90deg,var(--blue) 0%,var(--purple) 50%,#06b6d4 100%)}
.auth-header{padding:36px 36px 24px;text-align:center;border-bottom:1px solid var(--border)}
.auth-logo{width:64px;height:64px;border-radius:18px;
  background:linear-gradient(135deg,#dbeafe,#ede9fe);
  display:flex;align-items:center;justify-content:center;
  font-size:32px;margin:0 auto 16px;
  box-shadow:0 4px 12px rgba(37,99,235,.15)}
.auth-header h1{font-size:22px;font-weight:800;color:var(--text);letter-spacing:-.4px;margin-bottom:4px}
.auth-header p{font-size:13px;color:var(--light);font-weight:500}
.auth-body{padding:28px 36px}
.auth-footer{padding:14px 36px;text-align:center;background:#f8fafc;
  border-top:1px solid var(--border);font-size:11px;color:var(--light)}

/* ── FORMS ── */
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:12.5px;font-weight:600;color:var(--sub);margin-bottom:6px}
.form-input{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:10px;
  font-size:14.5px;font-family:inherit;color:var(--text);background:#fcfcff;
  transition:border-color .15s,box-shadow .15s;outline:none;-webkit-appearance:none}
.form-input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.1);background:#fff}
.form-input::placeholder{color:#cbd5e1}
.form-hint{font-size:11.5px;color:var(--light);margin-top:5px;line-height:1.4}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border:none;border-radius:10px;font-size:14.5px;font-weight:600;
  font-family:inherit;cursor:pointer;text-decoration:none;transition:all .15s;letter-spacing:-.1px}
.btn:active{transform:scale(.98)}
.btn-primary{background:linear-gradient(135deg,var(--blue-d),var(--purple));color:#fff;
  box-shadow:0 4px 14px rgba(37,99,235,.32);width:100%}
.btn-primary:hover{opacity:.92}
.btn-secondary{background:#f1f5f9;color:var(--text);border:1px solid var(--border);width:100%}
.btn-secondary:hover{background:#e8eef8}
.btn-green{background:linear-gradient(135deg,#059669,#047857);color:#fff;box-shadow:0 4px 14px rgba(5,150,105,.28)}
.btn-red{background:linear-gradient(135deg,#dc2626,#b91c1c);color:#fff}
.form-links{text-align:center;margin-top:16px;font-size:13px;color:var(--sub)}
.form-links a{color:var(--blue);text-decoration:none;font-weight:600}
.form-links a:hover{text-decoration:underline}
.form-divider{display:flex;align-items:center;gap:12px;margin:18px 0;color:var(--light);font-size:12px;font-weight:500}
.form-divider::before,.form-divider::after{content:'';flex:1;height:1px;background:var(--border)}

/* ── ALERTS ── */
.alert{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:13.5px;font-weight:500;line-height:1.5}
.alert-success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}
.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}
.alert-info{background:#eff6ff;color:#1e40af;border:1px solid #bfdbfe}
.alert-warn{background:#fffbeb;color:#92400e;border:1px solid #fde68a}

/* ── MAIN ── */
.main{flex:1;padding:32px 24px;max-width:1000px;margin:0 auto;width:100%}
.page-title{font-size:26px;font-weight:800;color:var(--text);margin-bottom:4px;letter-spacing:-.5px}
.page-sub{font-size:14px;color:var(--sub);margin-bottom:28px}

/* ── CARD ── */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--sh);border:1px solid var(--border);overflow:hidden}
.card-header{padding:18px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;
  justify-content:space-between;background:#fafbfd}
.card-header h2{font-size:16px;font-weight:700;color:var(--text)}
.card-body{padding:24px}

/* ── STATS ── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:24px}
.stat-card{background:var(--card);border-radius:var(--r);padding:20px 18px;box-shadow:var(--sh);
  border:1px solid var(--border);border-top:3px solid;text-align:center}
.stat-val{font-size:34px;font-weight:800;margin-bottom:4px;letter-spacing:-1px}
.stat-label{font-size:11px;font-weight:700;color:var(--light);text-transform:uppercase;letter-spacing:.8px}

/* ── TABLE ── */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th{padding:11px 16px;text-align:left;font-size:11px;font-weight:700;color:var(--light);
  text-transform:uppercase;letter-spacing:.8px;border-bottom:2px solid var(--border);
  background:#fafbfd;white-space:nowrap}
td{padding:13px 16px;border-bottom:1px solid #f1f5f9;vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr:hover td{background:#f8faff}
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;
  border-radius:20px;font-size:11.5px;font-weight:600;white-space:nowrap}

/* ── HERO ── */
.hero{flex:1;display:flex;align-items:center;justify-content:center;padding:48px 20px;
  background:linear-gradient(150deg,#eef2ff 0%,#f8fafc 45%,#f0f7ff 100%)}
.hero-card{background:var(--card);border-radius:22px;box-shadow:var(--sh-xl);
  max-width:560px;width:100%;overflow:hidden;border:1px solid rgba(226,232,240,.8)}
.hero-top{height:4px;background:linear-gradient(90deg,#059669 0%,#2563eb 50%,#dc2626 100%)}
.hero-body{padding:44px 40px 36px}
.hero-icon-wrap{text-align:center;margin-bottom:12px}
.hero-icon-box{display:inline-flex;align-items:center;justify-content:center;
  width:72px;height:72px;border-radius:20px;
  background:linear-gradient(135deg,#dbeafe,#ede9fe);
  font-size:38px;box-shadow:0 4px 16px rgba(37,99,235,.15)}
.hero-title{font-family:Georgia,'Times New Roman',serif;font-size:30px;font-weight:700;
  color:var(--text);text-align:center;margin-bottom:5px;letter-spacing:-.5px}
.hero-sub{text-align:center;color:var(--light);font-size:11px;font-weight:700;
  letter-spacing:3px;text-transform:uppercase;margin-bottom:10px}
.hero-divider{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:28px}
.hdl{height:1px;width:36px;background:linear-gradient(90deg,transparent,#3b82f6)}
.hdr{height:1px;width:36px;background:linear-gradient(90deg,#3b82f6,transparent)}
.hdd{width:5px;height:5px;border-radius:50%;background:#3b82f6}
.diff-cards{display:flex;gap:10px;margin-bottom:20px}
.diff-card{flex:1;padding:18px 10px;border-radius:14px;text-align:center;cursor:pointer;
  border:2px solid var(--border);background:#fafbff;transition:all .2s}
.diff-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg)}
.diff-emoji{font-size:28px;margin-bottom:8px}
.diff-label{font-weight:800;font-size:14px;margin-bottom:6px}
.diff-detail{font-size:10.5px;color:var(--sub);line-height:1.7}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px}
.feature-tile{padding:14px 12px;background:#f8faff;border-radius:12px;
  border:1px solid var(--border);text-align:center}
.feature-icon{font-size:22px;margin-bottom:6px}
.feature-title{font-weight:700;font-size:13px;color:var(--text)}
.feature-sub{font-size:11px;color:var(--light);margin-top:2px}

/* ── TEST ── */
.test-layout{flex:1;background:linear-gradient(150deg,#eef2ff 0%,#f8fafc 45%,#f0f7ff 100%);padding:24px 16px 48px}
.progress-bar-wrap{height:3px;background:var(--border)}
.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--purple));transition:width .4s ease}
.timer{font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;
  padding:6px 14px;border-radius:8px;background:#eff6ff;color:var(--blue);
  border:1.5px solid #bfdbfe;letter-spacing:.3px}
.timer.warn{background:#fef2f2;color:var(--red);border-color:#fecaca}
.timer.crit{animation:blink .7s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.55}}
.question-card{background:var(--card);border-radius:18px;box-shadow:var(--sh-lg);
  border:1px solid var(--border);overflow:hidden;max-width:720px;margin:0 auto 14px}
.question-body{padding:28px 28px 24px}
.question-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.cat-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:20px;font-size:12px;font-weight:700}
.q-num{font-size:22px;font-weight:800;color:#1e3a8a}
.q-tot{font-size:12px;color:var(--light)}
.question-text{font-family:Georgia,'Times New Roman',serif;font-size:18px;color:#0c1d40;
  line-height:1.75;margin-bottom:24px;white-space:pre-line;min-height:44px}
.options{display:flex;flex-direction:column;gap:8px}
.option-btn{display:flex;align-items:center;gap:12px;padding:12px 15px;border-radius:11px;
  border:1.5px solid var(--border);background:#fafbff;cursor:pointer;text-align:left;
  width:100%;font-family:inherit;font-size:14px;color:#374151;
  transition:border-color .12s,background .12s;-webkit-appearance:none}
.option-btn:hover{border-color:#93c5fd;background:#eff6ff}
.option-btn.selected{background:var(--sel-bg,#eff6ff);border-color:var(--sel-color,var(--blue))}
.option-letter{width:30px;height:30px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;
  justify-content:center;font-weight:800;font-size:12px;background:#f1f5f9;color:var(--sub);transition:all .12s}
.option-btn.selected .option-letter{background:var(--sel-color,var(--blue));color:#fff}
.option-check{margin-left:auto;font-size:15px}
.nav-buttons{display:flex;justify-content:space-between;align-items:center;margin-top:22px;gap:10px}
.dot-panel{background:var(--card);border-radius:13px;box-shadow:var(--sh);border:1px solid var(--border);
  max-width:720px;margin:0 auto;padding:14px 18px}
.dot-title{font-size:10px;font-weight:700;color:var(--light);text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}
.dot-grid{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:10px}
.dot{width:11px;height:11px;border-radius:50%;background:#e2e8f0;cursor:pointer;border:none;padding:0;transition:transform .1s}
.dot.current{transform:scale(1.5)!important}
.dot-legend{display:flex;flex-wrap:wrap;gap:10px}
.dot-legend-item{display:flex;align-items:center;gap:4px;font-size:10.5px;color:var(--sub)}
.dot-legend-dot{width:7px;height:7px;border-radius:50%}

/* ── RESULTS ── */
.result-hero{text-align:center;padding:36px 32px}
.iq-score{font-family:Georgia,'Times New Roman',serif;font-size:88px;font-weight:700;
  line-height:1;letter-spacing:-3px;margin-bottom:4px}
.iq-label{font-size:11px;font-weight:700;color:var(--light);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:14px}
.cls-badge{display:inline-flex;flex-direction:column;align-items:center;padding:11px 28px;border-radius:14px;margin-bottom:24px}
.cls-badge-label{font-size:17px;font-weight:800}
.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:20px}
.result-stat{padding:14px 8px;border-radius:12px;background:#f8faff;border:1px solid var(--border);text-align:center}
.result-stat-val{font-family:Georgia,serif;font-size:21px;font-weight:700;color:var(--text);margin-bottom:3px}
.result-stat-label{font-size:9.5px;font-weight:700;color:var(--sub);text-transform:uppercase;letter-spacing:.8px}
.result-stat-sub{font-size:9.5px;color:var(--light);margin-top:2px}
.cat-bar-wrap{margin-bottom:16px}
.cat-bar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:7px}
.cat-bar-label{font-size:13px;font-weight:700;display:flex;align-items:center;gap:7px}
.cat-bar-score{font-size:13px;font-weight:800}
.progress-bg{height:8px;background:#f1f5f9;border-radius:4px;overflow:hidden}
.progress-fill{height:100%;border-radius:4px}
.scale-row{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:9px;border:1.5px solid transparent;margin-bottom:4px}
.scale-range{width:46px;padding:3px 0;border-radius:5px;text-align:center;font-size:10px;font-weight:700;color:#fff;flex-shrink:0}
.scale-label{font-size:12.5px}
.scale-you{margin-left:auto;font-size:10px;font-weight:700;padding:2px 8px;border-radius:20px}
.bell-wrap{max-width:380px;margin:0 auto 8px}
.bell-sub{font-size:10px;color:var(--light);margin-bottom:20px;text-align:center}

/* ── FOOTER ── */
.footer{background:var(--card);border-top:1px solid var(--border);padding:20px 24px;
  text-align:center;font-size:12px;color:var(--light)}
.footer-sub{font-size:11px;margin-top:4px}

/* ── RESPONSIVE ── */
@media(max-width:640px){
  .navbar{padding:0 16px}
  .nav-user{display:none}
  .auth-body,.auth-header{padding-left:20px;padding-right:20px}
  .hero-body{padding:28px 20px}
  .diff-cards{flex-direction:column;gap:8px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .result-stats{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .main{padding:20px 14px}
  .question-body{padding:20px 16px 18px}
  .iq-score{font-size:68px}
  .result-hero{padding:24px 18px}
  .card-body{padding:18px 16px}
}