:root{
  --navy:#082f65;--blue:#0b4a8b;--blue2:#1b67aa;--ink:#17324d;--muted:#677b91;
  --line:#dce6f0;--soft:#f4f8fc;--white:#fff;--gold:#d49a55;--green:#147a63;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f3f7fb;color:var(--ink)}
a{color:inherit}
.portal-shell{min-height:100vh}
.portal-top{
  background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50
}
.portal-brand{
  max-width:1180px;margin:auto;padding:9px 18px;display:flex;align-items:center;justify-content:space-between;gap:18px
}
.portal-brand img{height:56px;max-width:min(520px,68vw);object-fit:contain;object-position:left center}
.main-site-link{
  text-decoration:none;font-size:11px;font-weight:900;color:var(--navy);border:1px solid #cbd9e7;
  border-radius:8px;padding:10px 13px;white-space:nowrap;background:#fff
}
.portal-titlebar{
  background:linear-gradient(110deg,#062956,#0b4a8b);color:#fff
}
.portal-titlebar-inner{
  max-width:1180px;margin:auto;padding:14px 18px;display:flex;justify-content:space-between;align-items:center;gap:18px
}
.portal-titlebar strong{font-size:16px;letter-spacing:.02em}
.portal-titlebar span{font-size:11px;color:#d8e7f5}
.portal-nav{
  max-width:1180px;margin:auto;display:flex;overflow-x:auto;gap:5px;padding:8px 14px 10px;
  scrollbar-width:thin;background:#fff
}
.portal-nav a{
  text-decoration:none;white-space:nowrap;font-size:11px;font-weight:900;color:#49627c;padding:9px 11px;border-radius:7px
}
.portal-nav a:hover,.portal-nav a.active{background:#eaf2fb;color:#0b3b73}
.page{max-width:1180px;margin:auto;padding:24px 18px 70px}
.hero{
  position:relative;overflow:hidden;border-radius:22px;background:linear-gradient(135deg,#082f65,#0b4f92);
  color:#fff;padding:45px 44px;margin-bottom:16px
}
.hero:after{content:"NEET";position:absolute;right:-20px;bottom:-53px;font-weight:900;font-size:165px;color:rgba(255,255,255,.045)}
.eyebrow{display:block;font-size:11px;font-weight:900;letter-spacing:.14em;color:#d5e5f4;margin-bottom:10px}
.hero h1{margin:0 0 13px;font-size:39px;line-height:1.13;max-width:820px}
.hero p{margin:0;max-width:810px;font-size:15px;line-height:1.75;color:#e1ebf4}
.hero-badges{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}
.badge{border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.1);border-radius:8px;padding:8px 10px;font-size:11px;font-weight:800}
.section{background:#fff;border:1px solid var(--line);border-radius:17px;padding:25px;margin-top:15px}
.section-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:17px}
.section-head h2{margin:0;color:#123c6d;font-size:24px}
.section-head p{margin:6px 0 0;color:var(--muted);font-size:13px;line-height:1.65;max-width:780px}
.kicker{font-size:10px;font-weight:900;color:#24629b;letter-spacing:.11em;text-transform:uppercase}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.card{border:1px solid #dfe7ef;background:#fbfdff;border-radius:14px;padding:18px}
.card h3{margin:0 0 7px;font-size:16px;color:#123b68}
.card p{margin:0;color:#6c7c8d;font-size:12px;line-height:1.65}
.card .card-no{display:inline-grid;place-items:center;width:29px;height:29px;border-radius:8px;background:#eaf2fb;color:#16518b;font-size:10px;font-weight:900;margin-bottom:10px}
.stat strong{display:block;font-size:28px;color:#0e447e}
.stat span{display:block;font-size:11px;color:#6b7c8f;margin-top:5px;line-height:1.4}
.knowledge-search{display:flex;gap:10px;margin-top:20px;max-width:720px}
.knowledge-search input,.searchbox input{
  width:100%;border:1px solid #cbd8e5;border-radius:9px;padding:12px 13px;font-size:13px;outline:none;background:#fff
}
.knowledge-card{display:flex;flex-direction:column;min-height:180px}
.knowledge-card .icon{font-size:22px;margin-bottom:10px}
.knowledge-card h3{font-size:17px}
.knowledge-card a{margin-top:auto;display:inline-flex;text-decoration:none;color:#0c4a88;font-size:11px;font-weight:900;padding-top:15px}
.notice{padding:14px 16px;border-radius:10px;background:#eef5fc;border:1px solid #d4e5f5;color:#3f5e7d;font-size:12px;line-height:1.65}
.warning{background:#fff7e9;border-color:#ecd6aa;color:#765d2c}
.good{background:#edf9f5;border-color:#cae8de;color:#306a5a}
.table-wrap{overflow-x:auto;border:1px solid #e0e8f0;border-radius:12px}
table{width:100%;border-collapse:collapse;background:#fff}
th,td{padding:12px;border-bottom:1px solid #e7edf3;text-align:left;font-size:12px;vertical-align:top}
th{font-size:10px;letter-spacing:.05em;color:#234b74;background:#eef4fa}
tr:last-child td{border-bottom:0}
.pill{display:inline-flex;padding:5px 7px;border-radius:6px;font-size:10px;font-weight:900;background:#edf3fa;color:#255781}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.step{border:1px solid #e0e8ef;border-radius:13px;padding:17px;background:#fbfcfe;text-align:center}
.step i{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#123b68;color:#fff;font-style:normal;font-size:10px;font-weight:900;margin:0 auto 9px}
.step b{display:block;font-size:13px;color:#123b68}
.step span{display:block;margin-top:5px;color:#718295;font-size:11px;line-height:1.45}
.btnrow{display:flex;flex-wrap:wrap;gap:9px;margin-top:15px}
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border:0;border-radius:8px;padding:11px 14px;font-size:11px;font-weight:900;cursor:pointer}
.btn.primary{background:#103d73;color:#fff}
.btn.light{background:#edf4fb;color:#164c82;border:1px solid #d5e3f0}
.source-card{display:flex;gap:13px;align-items:flex-start}
.source-logo{display:grid;place-items:center;min-width:42px;height:42px;border-radius:10px;background:#eaf2fb;color:#124a82;font-size:11px;font-weight:900}
.source-card a{display:inline-block;margin-top:9px;text-decoration:none;color:#0c4d8b;font-size:11px;font-weight:900}
.faq-item{border:1px solid #dfe7ef;border-radius:11px;background:#fff;margin-top:9px;overflow:hidden}
.faq-q{width:100%;border:0;background:#fbfdff;padding:14px 16px;text-align:left;font-size:13px;font-weight:800;color:#173d65;cursor:pointer;display:flex;justify-content:space-between;gap:12px}
.faq-a{display:none;padding:0 16px 15px;color:#697a8c;font-size:12px;line-height:1.7}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-q{background:#eef5fc}
.footer-note{margin-top:18px;padding:19px;border-radius:14px;background:#0b315f;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:15px}
.footer-note p{margin:4px 0 0;color:#d9e5f1;font-size:11px;line-height:1.5}
.footer-note a{background:#fff;color:#103d73;text-decoration:none;padding:10px 13px;border-radius:8px;font-size:11px;font-weight:900;white-space:nowrap}
.protection{margin-top:14px;color:#7d8998;font-size:10px;font-weight:700}
.searchbox{margin:13px 0;display:flex;gap:8px}
.subject-filters{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 15px}
.subject-filters button{border:1px solid #d5e1ec;background:#fff;color:#3d5873;border-radius:8px;padding:9px 11px;font-size:11px;font-weight:900;cursor:pointer}
.subject-filters button.active{background:#103d73;color:#fff;border-color:#103d73}
.syllabus-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}
.unit{border:1px solid #dfe7ef;border-radius:12px;background:#fff;margin:9px 0;overflow:hidden}
.unit-head{width:100%;border:0;background:#fbfdff;padding:14px 15px;text-align:left;cursor:pointer;display:grid;grid-template-columns:45px 1fr auto;gap:10px;align-items:center}
.unit-no{font-size:10px;font-weight:900;color:#1a578e;background:#eaf2fb;border-radius:7px;padding:7px;text-align:center}
.unit-title{font-size:13px;font-weight:900;color:#153f68}
.unit-count{font-size:10px;color:#748397}
.unit-body{display:none;padding:4px 15px 14px}
.unit.open .unit-body{display:block}
.topic{border-top:1px solid #edf1f5;padding:11px 2px}
.topic:first-child{border-top:0}
.topic b{display:block;font-size:12px;color:#244766;line-height:1.5}
.topic p{margin:5px 0 0;font-size:11px;line-height:1.6;color:#738294}
.calc{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.calc label{font-size:11px;font-weight:800;color:#52687f}
.calc input{width:100%;margin-top:6px;padding:10px;border:1px solid #cad8e6;border-radius:8px;font-size:13px}
.calc-result{margin-top:12px;background:#eef5fc;border-radius:11px;padding:15px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.calc-result div{text-align:center}
.calc-result strong{display:block;color:#0d437b;font-size:24px}
.calc-result span{font-size:10px;color:#6c7d90}
.timeline{position:relative;padding-left:24px}
.timeline:before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:#dbe7f2}
.timeline-item{position:relative;padding:0 0 18px 13px}
.timeline-item:before{content:"";position:absolute;left:-21px;top:5px;width:10px;height:10px;border-radius:50%;background:#1b5d97;border:3px solid #e6f0f9}
.timeline-item b{display:block;font-size:13px;color:#163f69}
.timeline-item span{display:block;margin-top:4px;font-size:11px;color:#718196;line-height:1.55}
.protected-content{-webkit-user-select:none;-moz-user-select:none;user-select:none}
@media(max-width:900px){
 .grid-4{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr 1fr}.syllabus-summary{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
 .portal-brand img{height:45px;max-width:65vw}.main-site-link{font-size:9px;padding:8px 9px}
 .portal-titlebar-inner{align-items:flex-start;flex-direction:column;gap:3px}.page{padding:17px 12px 50px}
 .hero{padding:29px 22px;border-radius:16px}.hero h1{font-size:29px}.hero p{font-size:13px}
 .section{padding:18px 14px}.section-head h2{font-size:21px}.grid-2,.grid-3,.grid-4,.steps,.calc,.calc-result{grid-template-columns:1fr}
 .syllabus-summary{grid-template-columns:1fr 1fr}.footer-note{align-items:flex-start;flex-direction:column}
}