/* ==========================================================================
   Examisthan — JEE & NEET preparation pages
   Themes: .ce--jee  engineering (blue / indigo / cyan, blueprint grid)
           .ce--neet biology     (green / teal / violet, soft cellular)
   ========================================================================== */
.ce{--c1:#2546D9;--c2:#5B3FE0;--c3:#06B6D4;--soft:#EEF3FF;--soft2:#E8FBFF;--ink:#0B1530;--mut:#5B6785;--bd:#DFE6F5;--ok:#059669;--bad:#DC2626;--warn:#D97706;
  color:var(--ink);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;padding-bottom:56px}
.ce--neet{--c1:#0E9F6E;--c2:#0D9488;--c3:#7C3AED;--soft:#ECFDF5;--soft2:#F3EEFF;--ink:#0A2018;--mut:#4F6B61;--bd:#D7ECE3}
.ce *{box-sizing:border-box}
.ce a{color:var(--c1)}
.ce-wrap{max-width:1160px;margin:0 auto;padding:0 16px}
.ce h1,.ce h2,.ce h3{font-family:Poppins,Inter,sans-serif;letter-spacing:-.01em;margin:0}

/* hero */
.ce-hero{position:relative;overflow:hidden;color:#fff;padding:54px 0 64px;margin-bottom:28px;
  background:linear-gradient(135deg,var(--c1) 0%,var(--c2) 58%,var(--c3) 130%)}
.ce--jee .ce-hero:before{content:"";position:absolute;inset:0;opacity:.18;
  background-image:linear-gradient(rgba(255,255,255,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.55) 1px,transparent 1px),
  linear-gradient(rgba(255,255,255,.25) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.25) 1px,transparent 1px);
  background-size:96px 96px,96px 96px,24px 24px,24px 24px}
.ce--neet .ce-hero:before{content:"";position:absolute;inset:0;opacity:.22;
  background:radial-gradient(circle at 12% 30%,rgba(255,255,255,.5) 0 2px,transparent 3px) 0 0/38px 38px,
  radial-gradient(ellipse at 85% 10%,rgba(255,255,255,.35),transparent 45%),radial-gradient(ellipse at 10% 100%,rgba(124,58,237,.45),transparent 50%)}
.ce-hero .ce-wrap{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.ce-crumbs{font-size:12.5px;opacity:.85;margin-bottom:14px}.ce-crumbs a{color:#fff;text-decoration:none}.ce-crumbs a:hover{text-decoration:underline}
.ce-eyebrow{display:inline-flex;gap:8px;align-items:center;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);margin-bottom:14px}
.ce-hero h1{font-size:clamp(28px,4.2vw,44px);line-height:1.1;font-weight:800}
.ce-hero p.lead{font-size:16.5px;line-height:1.6;opacity:.93;margin:14px 0 22px;max-width:580px}
.ce-cta{display:flex;gap:10px;flex-wrap:wrap}
.ce-btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14.5px;padding:12px 18px;border-radius:12px;text-decoration:none;border:1px solid transparent;cursor:pointer;font-family:inherit;line-height:1.1;transition:transform .15s ease,box-shadow .15s ease}
.ce-btn:hover{transform:translateY(-1px)}
.ce-btn.white{background:#fff;color:var(--c1)!important;box-shadow:0 8px 24px rgba(0,0,0,.18)}
.ce-btn.ghost{background:rgba(255,255,255,.1);color:#fff!important;border-color:rgba(255,255,255,.45)}
.ce-btn.pri{background:var(--c1);color:#fff!important}
.ce-btn.line{background:#fff;color:var(--c1)!important;border-color:var(--bd)}
.ce-btn.sm{padding:8px 12px;font-size:13px;border-radius:10px}
.ce-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.ce-art{width:100%;max-width:420px;justify-self:end;filter:drop-shadow(0 18px 40px rgba(0,0,0,.25))}
.ce-art .spin{transform-origin:center;transform-box:fill-box;animation:ceSpin 26s linear infinite}
.ce-art .float{animation:ceFloat 6s ease-in-out infinite}
.ce-art .float2{animation:ceFloat 7.5s ease-in-out infinite reverse}
.ce-art .dash{stroke-dasharray:6 8;animation:ceDash 8s linear infinite}
@keyframes ceSpin{to{transform:rotate(360deg)}}
@keyframes ceFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes ceDash{to{stroke-dashoffset:-140}}
.ce-hstats{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.ce-hstat{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);border-radius:14px;padding:10px 14px;min-width:110px}
.ce-hstat b{display:block;font-size:22px;font-family:Poppins,sans-serif}.ce-hstat span{font-size:12px;opacity:.85}

/* sections */
.ce-sec{margin:0 0 34px}
.ce-sec-h{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.ce-sec-h h2{font-size:22px;font-weight:800}.ce-sec-h p{margin:4px 0 0;color:var(--mut);font-size:14px}
.ce-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.ce-card{background:#fff;border:1px solid var(--bd);border-radius:18px;padding:18px;position:relative;overflow:hidden;transition:box-shadow .2s ease,transform .2s ease}
a.ce-card{text-decoration:none;color:inherit;display:block}
a.ce-card:hover{box-shadow:0 14px 34px rgba(15,30,80,.1);transform:translateY(-2px)}
.ce-subj{display:flex;gap:14px;align-items:flex-start}
.ce-subj .ic{width:52px;height:52px;flex:none;border-radius:14px;display:grid;place-items:center;color:#fff;font-size:26px;background:linear-gradient(135deg,var(--c1),var(--c3))}
.ce-subj h3{font-size:17px;font-weight:700}.ce-subj p{margin:4px 0 0;font-size:13px;color:var(--mut)}
.ce-subj .sub{font-size:12px;color:var(--mut);margin-top:8px}
.ce-subj.s1 .ic{background:linear-gradient(135deg,#2563EB,#06B6D4)}.ce-subj.s2 .ic{background:linear-gradient(135deg,#7C3AED,#EC4899)}.ce-subj.s3 .ic{background:linear-gradient(135deg,#EA580C,#F59E0B)}
.ce--neet .ce-subj.s3 .ic{background:linear-gradient(135deg,#059669,#84CC16)}.ce-subj.s4 .ic{background:linear-gradient(135deg,#0D9488,#22D3EE)}
.ce-tag{display:inline-flex;gap:5px;align-items:center;font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--soft);color:var(--c1)}
.ce-tag.pyq{background:#FFF7E6;color:#B45309}.ce-tag.ai{background:#F3F4F6;color:#4B5563}.ce-tag.mute{background:#F1F5F9;color:#475569}
.ce-tag.ok{background:#DCFCE7;color:#166534}.ce-tag.bad{background:#FEE2E2;color:#991B1B}
.ce-empty{background:var(--soft);border:1px dashed var(--bd);border-radius:16px;padding:22px;text-align:center;color:var(--mut);font-size:14px}
.ce-note{font-size:12.5px;color:var(--mut);margin:8px 0 0}
.ce-alert{padding:12px 14px;border-radius:12px;font-size:14px;margin-bottom:14px;background:#FEF2F2;color:#991B1B;border:1px solid #FECACA}
.ce-alert.info{background:var(--soft);color:var(--ink);border-color:var(--bd)}

.ce-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;counter-reset:st}
.ce-step{background:#fff;border:1px solid var(--bd);border-radius:16px;padding:16px;counter-increment:st}
.ce-step:before{content:counter(st);display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:var(--soft);color:var(--c1);font-weight:800;margin-bottom:10px}
.ce-step h3{font-size:15px}.ce-step p{font-size:13px;color:var(--mut);margin:6px 0 0;line-height:1.55}
.ce-variants{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.ce a.ce-variant,.ce-variant{border-radius:18px;padding:20px;color:#fff;text-decoration:none;background:linear-gradient(135deg,var(--c1),var(--c2));position:relative;overflow:hidden}
.ce a.ce-variant.alt,.ce-variant.alt{background:linear-gradient(135deg,var(--c2),var(--c3))}
.ce-variant h3{font-size:19px;font-weight:800}.ce-variant p{font-size:13.5px;opacity:.92;margin:6px 0 12px;line-height:1.5}
.ce-variant:after{content:"";position:absolute;right:-30px;bottom:-40px;width:140px;height:140px;border-radius:50%;border:18px solid rgba(255,255,255,.12)}

/* page head (non-landing) */
.ce-head{background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;padding:30px 0 34px;margin-bottom:24px;position:relative;overflow:hidden}
.ce--jee .ce-head{background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(135deg,var(--c1),var(--c2));background-size:24px 24px,24px 24px,auto}
.ce--neet .ce-head{background-image:radial-gradient(circle,rgba(255,255,255,.18) 1.5px,transparent 2px),linear-gradient(135deg,var(--c1),var(--c2));background-size:26px 26px,auto}
.ce-head h1{font-size:clamp(24px,3.4vw,34px);font-weight:800}.ce-head p{margin:8px 0 0;opacity:.92;font-size:15px;max-width:720px;line-height:1.55}
.ce-head .ce-crumbs{margin-bottom:10px}

.ce-chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.ce-chip{font-size:13px;font-weight:700;padding:7px 13px;border-radius:999px;border:1px solid var(--bd);background:#fff;color:var(--ink);text-decoration:none}
.ce-chip.on{background:var(--c1);border-color:var(--c1);color:#fff}

.ce-list{display:grid;gap:10px}
.ce-row{display:flex;justify-content:space-between;align-items:center;gap:12px;background:#fff;border:1px solid var(--bd);border-radius:14px;padding:14px 16px;text-decoration:none;color:inherit}
a.ce-row:hover{border-color:var(--c1)}
.ce-row h3{font-size:15px;font-weight:700}.ce-row small{display:block;color:var(--mut);font-size:12.5px;margin-top:3px}
.ce-year{font-family:Poppins,sans-serif;font-weight:800;font-size:18px;color:var(--c1);margin:18px 0 8px}

/* practice question */
.ce-q{background:#fff;border:1px solid var(--bd);border-radius:18px;padding:18px 18px 14px;margin-bottom:14px}
.ce-q-top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start;margin-bottom:10px;flex-wrap:wrap}
.ce-q-meta{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.ce-q-num{font-weight:800;color:var(--c1);font-family:Poppins,sans-serif}
.ce-q-body{font-size:15.5px;line-height:1.65}
.ce-q-body p{margin:0 0 8px}.ce-q-body table{border-collapse:collapse;margin:8px 0}.ce-q-body td,.ce-q-body th{border:1px solid var(--bd);padding:6px 9px}
.ce-opts{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:8px}
.ce-opt{display:flex;gap:10px;align-items:flex-start;border:1.5px solid var(--bd);border-radius:12px;padding:10px 12px;cursor:pointer;font-size:14.5px;line-height:1.5;background:#fff;transition:border-color .15s,background .15s}
.ce-opt:hover{border-color:var(--c1)}
.ce-opt input{margin-top:4px;accent-color:var(--c1)}
.ce-opt .L{font-weight:800;color:var(--c1);min-width:18px}
.ce-opt.sel{border-color:var(--c1);background:var(--soft)}
.ce-opt.right{border-color:var(--ok);background:#ECFDF5}.ce-opt.wrong{border-color:var(--bad);background:#FEF2F2}
.ce-opt p{margin:0}
.ce-num{display:flex;gap:8px;align-items:center;margin-top:12px}
.ce-num input{width:180px;border:1.5px solid var(--bd);border-radius:10px;padding:10px 12px;font:inherit;font-size:15px}
.ce-q-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:12px}
.ce-verdict{font-weight:700;font-size:14px}.ce-verdict.ok{color:var(--ok)}.ce-verdict.bad{color:var(--bad)}
.ce-sol{margin-top:12px;border-top:1px dashed var(--bd);padding-top:12px;font-size:14.5px;line-height:1.65}
.ce-sol h4{margin:0 0 6px;font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--mut)}
.ce-sol .ans{font-weight:800;color:var(--ok);margin-bottom:8px}
.ce-bm{background:none;border:1px solid var(--bd);border-radius:10px;padding:6px 9px;cursor:pointer;color:var(--mut);font-size:16px;line-height:1}
.ce-bm.on{color:#D97706;border-color:#FCD34D;background:#FFFBEB}
.ce-pager{margin-top:16px}
.ce-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.ce-filters select{border:1px solid var(--bd);border-radius:10px;padding:8px 10px;font:inherit;font-size:13.5px;background:#fff}

/* mock info / result */
.ce-kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:18px}
.ce-kpi{background:#fff;border:1px solid var(--bd);border-radius:16px;padding:14px 16px}
.ce-kpi b{display:block;font-family:Poppins,sans-serif;font-size:24px;color:var(--c1)}.ce-kpi span{font-size:12.5px;color:var(--mut);font-weight:600}
.ce-kpi.ok b{color:var(--ok)}.ce-kpi.bad b{color:var(--bad)}.ce-kpi.warn b{color:var(--warn)}
.ce-table{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border:1px solid var(--bd);border-radius:14px;overflow:hidden}
.ce-table th{background:var(--soft);text-align:left;padding:10px 12px;font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--mut)}
.ce-table td{padding:10px 12px;border-top:1px solid var(--bd)}
.ce-tw{overflow-x:auto}
.ce-bar{height:9px;border-radius:99px;background:#EEF2F7;overflow:hidden;min-width:80px}.ce-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--c1),var(--c3))}
.ce-2col{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;align-items:start}
.ce-instr{font-size:14px;line-height:1.7;color:#334155}.ce-instr li{margin-bottom:4px}

/* ── exam attempt UI ── */
.cx{--c1:#2546D9;--c2:#5B3FE0;--soft:#EEF3FF;--bd:#DFE6F5;--ink:#0B1530;--mut:#5B6785;font-family:Inter,system-ui,sans-serif;color:var(--ink);background:#F5F7FC;min-height:100vh;display:flex;flex-direction:column}
.cx--neet{--c1:#0E9F6E;--c2:#0D9488;--soft:#ECFDF5;--bd:#D7ECE3}
.cx *{box-sizing:border-box}
.cx-bar{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 16px;background:linear-gradient(90deg,var(--c1),var(--c2));color:#fff}
.cx-bar h1{font-size:15px;margin:0;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cx-timer{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:20px;font-weight:800;background:rgba(255,255,255,.16);padding:6px 12px;border-radius:10px;min-width:118px;text-align:center}
.cx-timer.low{background:#DC2626}
.cx-main{flex:1;display:grid;grid-template-columns:1fr 300px;gap:16px;padding:16px;max-width:1280px;width:100%;margin:0 auto}
.cx-q{background:#fff;border:1px solid var(--bd);border-radius:16px;padding:18px;display:flex;flex-direction:column;min-height:60vh}
.cx-qh{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;align-items:center;border-bottom:1px solid var(--bd);padding-bottom:10px;margin-bottom:12px;font-size:13px;color:var(--mut)}
.cx-qh b{color:var(--ink);font-size:15px}
.cx-body{font-size:16px;line-height:1.7;flex:1}
.cx-body p{margin:0 0 8px}
.cx-foot{display:flex;gap:8px;flex-wrap:wrap;border-top:1px solid var(--bd);padding-top:12px;margin-top:14px}
.cx-btn{border:1px solid var(--bd);background:#fff;color:var(--ink);font-weight:700;font-size:13.5px;padding:10px 14px;border-radius:10px;cursor:pointer;font-family:inherit}
.cx-btn.pri{background:var(--c1);border-color:var(--c1);color:#fff}.cx-btn.mark{background:#7C3AED;border-color:#7C3AED;color:#fff}.cx-btn.sub{background:#DC2626;border-color:#DC2626;color:#fff}
.cx-btn:disabled{opacity:.5;cursor:not-allowed}
.cx-side{background:#fff;border:1px solid var(--bd);border-radius:16px;padding:14px;align-self:start;position:sticky;top:70px;max-height:calc(100vh - 90px);overflow:auto}
.cx-legend{display:grid;grid-template-columns:1fr 1fr;gap:6px;font-size:11.5px;color:var(--mut);margin-bottom:12px}
.cx-legend span{display:flex;gap:6px;align-items:center}
.cx-sec{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--mut);margin:12px 0 6px}
.cx-pal{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
.cx-p{aspect-ratio:1;border-radius:8px;border:1px solid var(--bd);background:#F1F5F9;font-weight:700;font-size:12.5px;cursor:pointer;color:var(--ink);font-family:inherit;position:relative}
.cx-p.nv{background:#F1F5F9}.cx-p.na{background:#FEE2E2;border-color:#FCA5A5;color:#991B1B}.cx-p.an{background:#DCFCE7;border-color:#86EFAC;color:#166534}
.cx-p.mk{background:#EDE9FE;border-color:#C4B5FD;color:#5B21B6}.cx-p.am{background:#EDE9FE;border-color:#7C3AED;color:#5B21B6}
.cx-p.am:after{content:"";position:absolute;right:3px;bottom:3px;width:7px;height:7px;border-radius:50%;background:#16A34A}
.cx-p.cur{outline:2px solid var(--c1);outline-offset:1px}
.cx-sw{width:14px;height:14px;border-radius:4px;display:inline-block;border:1px solid var(--bd)}
.cx-status{font-size:12px;color:var(--mut);min-height:16px}
.cx-modal{position:fixed;inset:0;background:rgba(10,20,40,.55);display:grid;place-items:center;z-index:20;padding:16px}
.cx-modal[hidden]{display:none}
.cx-dlg{background:#fff;border-radius:18px;padding:22px;max-width:440px;width:100%}
.cx-dlg h2{margin:0 0 8px;font-size:19px}.cx-dlg p{color:var(--mut);font-size:14px;margin:0 0 12px}
.cx-sum{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px;font-size:13.5px}
.cx-sum div{background:#F8FAFC;border-radius:10px;padding:8px 10px}.cx-sum b{display:block;font-size:18px}
.cx-palbtn{display:none}

@media(max-width:900px){
  .ce-hero .ce-wrap{grid-template-columns:1fr}.ce-art{max-width:280px;justify-self:center;order:-1}
  .ce-2col{grid-template-columns:1fr}
  .cx-main{grid-template-columns:1fr;padding:10px}
  .cx-side{position:fixed;inset:auto 0 0 0;top:auto;border-radius:18px 18px 0 0;max-height:70vh;transform:translateY(100%);transition:transform .25s ease;z-index:10}
  .cx-side.open{transform:none}
  .cx-palbtn{display:inline-block}
  .cx-pal{grid-template-columns:repeat(8,1fr)}
}
@media(max-width:560px){.ce-hero{padding:34px 0 40px}.ce-hstat{min-width:0;flex:1 1 40%}.ce-num input{width:100%}}
@media(prefers-reduced-motion:reduce){.ce-art .spin,.ce-art .float,.ce-art .float2,.ce-art .dash{animation:none}.ce-btn,a.ce-card{transition:none}}