*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Arial,sans-serif;color:#111b43;background:#fff;line-height:1.55}a{text-decoration:none;color:inherit}.container{width:min(1160px,92%);margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid #e8eaf2}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;min-width:0}.brand-logo{display:block;width:58px;height:58px;object-fit:contain;flex:0 0 58px;border-radius:50%}.brand-wordmark{display:block;line-height:1.1}.brand-wordmark b{display:block;white-space:nowrap}.brand-remar{color:#0B1F5E}.brand-chem{color:#FF9933}.brand-science{color:#006B2D}.brand-wordmark small{display:block;font-weight:900;letter-spacing:1px;font-size:10px;margin-top:4px}.brand b{display:block;letter-spacing:.5px;font-size:18px}.brand small{font-size:10px}nav{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:700}nav a:hover{color:#0B7A32}.menu{display:none;background:none;border:0;font-size:28px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;background:linear-gradient(135deg,#0B1F5E,#138A36);color:#fff;padding:13px 20px;font-weight:800;cursor:pointer;box-shadow:0 8px 20px #0B1F5E22}.btn:hover{transform:translateY(-1px)}.btn-small{padding:10px 14px}.btn-ghost{background:#fff;color:#0B1F5E;border:2px solid #dfe3f5;box-shadow:none}.btn-wa{background:#138A36}.full{width:100%;margin-top:10px}.hero{padding:70px 0 45px;background:radial-gradient(circle at 80% 20%,#eefaf3,transparent 35%),linear-gradient(135deg,#f7f9ff,#fff)}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:55px;align-items:center}.eyebrow{display:inline-block;color:#0B7A32;font-weight:900;letter-spacing:1.2px;font-size:12px;margin-bottom:12px}.hero h1{font-size:clamp(42px,6vw,72px);line-height:1.02;margin:0 0 20px;color:#0B1F5E}.hero h1 span{color:#0B7A32}.lead{font-size:20px;color:#58617b;max-width:650px}.hero-actions{display:flex;gap:12px;margin:26px 0}.trust-row{display:flex;gap:18px;flex-wrap:wrap;font-weight:800;color:#087e31;font-size:13px}.poster-card{background:#fff;padding:10px;border-radius:24px;box-shadow:0 20px 60px #0B1F5E20}.poster-card img{display:block;width:100%;border-radius:16px}.stats{background:#0B1F5E;color:#fff}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}.stats-grid div{padding:25px 18px;border-right:1px solid #ffffff24}.stats-grid b,.stats-grid span{display:block}.stats-grid span{color:#bfcaff;font-size:13px}.section{padding:85px 0}.alt{background:#f7f8fd}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}.section h2{font-size:clamp(30px,4vw,48px);line-height:1.08;margin:0 0 12px;color:#0B1F5E}.section-head p{max-width:430px;color:#6b738a}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.course{padding:28px;border-radius:22px;min-height:270px;box-shadow:0 10px 35px #0B1F5E10;border:1px solid #e7e9f2;background:#fff}.course h3{font-size:25px;margin:20px 0 8px}.course p{color:#687087}.course button{border:0;background:#EDF7F0;color:#0B1F5E;font-weight:800;border-radius:10px;padding:10px 14px;cursor:pointer}.tag{font-size:11px;font-weight:900;text-transform:uppercase;padding:7px 10px;border-radius:20px;background:#EDF7F0;color:#0B7A32}.c2 .tag{background:#EDF7F0;color:#0B7A32}.c3 .tag{background:#EDF7F0;color:#234F9E}.c4 .tag{background:#FFF0E0;color:#B85C00}.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center}.feature-list{margin-top:28px}.feature-list>div{display:flex;gap:18px;padding:17px 0;border-bottom:1px solid #e2e5ef}.feature-list b{color:#0B7A32}.feature-list strong,.feature-list small{display:block}.feature-list small{color:#6d758a}.mentor{background:#0B1F5E;color:#fff;border-radius:28px;padding:38px;box-shadow:0 25px 60px #0B1F5E33}.mentor h3{font-size:30px;margin:18px 0 3px}.mentor p{color:#d3dbff}.mentor .muted{color:#aeb9e7}.mentor-badge{width:72px;height:72px;border-radius:50%;display:grid;place-items:center;background:#138A36;font-weight:900;font-size:20px}.timeline{display:grid;gap:14px}.timeline>div{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:20px;border:1px solid #e5e8f1;border-radius:18px}.timeline span{font-size:12px;font-weight:900;color:#0B7A32}.timeline h3{margin:0}.timeline p{margin:4px 0;color:#6c7489}.admission{background:linear-gradient(135deg,#0B1F5E,#142ca8);color:#fff}.admission h2{color:#fff}.admission .eyebrow{color:#FF9933}.form-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:start}.form-wrap>div>p{color:#c8d0ff}.contact-mini{display:grid;gap:5px;margin-top:25px}.contact-mini a{color:#FF9933;font-weight:800}.form-wrap form{background:#fff;color:#17204a;border-radius:24px;padding:28px;box-shadow:0 25px 70px #0003}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}label{display:block;font-weight:800;font-size:13px;margin-bottom:14px}input,select,textarea{display:block;width:100%;margin-top:7px;border:1px solid #dce1ec;border-radius:10px;padding:12px 13px;font:inherit;background:#fff}textarea{resize:vertical}.check{display:flex;gap:9px;align-items:flex-start;font-weight:600;color:#626b81}.check input{width:auto;margin-top:3px}.tiny{font-size:11px;color:#788197}.portal-teaser{padding-top:35px}.portal-box{background:#F1F4FB;border-radius:28px;padding:35px;display:flex;justify-content:space-between;gap:25px;align-items:center}.portal-box p{color:#5e6880;max-width:680px}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}.contact-card{display:grid;gap:12px}.contact-card a{padding:18px;border:1px solid #e5e8f1;border-radius:15px;font-weight:800}.contact-card a:hover{border-color:#0B7A32}.footer{padding:28px 0;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid #e5e7ef;color:#687087;font-size:12px}.footer b,.footer span{display:block;color:#0B1F5E}.modal{display:none;position:fixed;inset:0;background:#0B1F5E99;z-index:100;padding:20px;align-items:center;justify-content:center}.modal.open{display:flex}.modal-card{width:min(480px,100%);background:#fff;border-radius:22px;padding:28px;position:relative;box-shadow:0 30px 100px #0005}.close{position:absolute;right:14px;top:10px;border:0;background:none;font-size:30px;cursor:pointer}.modal-card h2{margin-top:0;color:#0B1F5E}.modal-card .btn{width:100%;margin-top:10px}.dashboard{display:none}.dashboard.show{display:block}.dash-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.dash-card{padding:20px;border-radius:18px;background:#f6f8ff;border:1px solid #e5e9f5}.dash-card b{font-size:25px;display:block;color:#0B1F5E}.dash-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.logout{background:#fff!important;color:#0B7A32!important;border:1px solid #b9dfc7!important}
@media(max-width:900px){nav{display:none}.menu{display:block}.hero-grid,.two-col,.form-wrap,.contact-grid{grid-template-columns:1fr}.cards{grid-template-columns:1fr 1fr}.stats-grid{grid-template-columns:1fr 1fr}.section-head{display:block}.portal-box{display:block}.poster-card{max-width:520px;margin:auto}}
@media(max-width:600px){.nav{height:68px}.hero{padding-top:42px}.hero h1{font-size:44px}.hero-actions{flex-direction:column}.cards,.form-grid,.stats-grid{grid-template-columns:1fr}.section{padding:60px 0}.timeline>div{grid-template-columns:1fr}.poster-card{padding:6px}.site-header nav{position:absolute;left:4%;right:4%;top:70px;background:#fff;border-radius:16px;padding:18px;box-shadow:0 20px 50px #0B1F5E30;flex-direction:column;align-items:stretch}.site-header nav.open{display:flex}.nav .btn-small{text-align:center}}

.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.video-card{background:#fff;border:1px solid #e5e8f1;border-radius:20px;overflow:hidden;box-shadow:0 10px 35px #0B1F5E10}.video-placeholder{height:190px;background:linear-gradient(135deg,#0B1F5E,#138A36);display:grid;place-items:center;color:#fff}.video-placeholder span{width:64px;height:64px;border-radius:50%;background:#ffffffdd;color:#0B1F5E;display:grid;place-items:center;font-size:25px;padding-left:4px}.video-body{padding:22px}.video-body h3{font-size:22px;margin:12px 0 6px}.video-body p{color:#687087}.video-manager{border:2px dashed #cfd6ed}.video-manager code{background:#EDF7F0;padding:2px 5px;border-radius:5px}.video-manager input{margin-top:7px}.video-note{margin-top:18px;padding:17px 20px;border-radius:14px;background:#FFF4E8;border:1px solid #F2C79F;color:#6A4A2B;font-size:13px}.video-player{width:100%;margin-top:15px;border-radius:12px;background:#000}
@media(max-width:900px){.video-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.video-grid{grid-template-columns:1fr}}

.video-lock{background:#fff;border:1px solid #e1e5f1;border-radius:24px;padding:42px;text-align:center;max-width:760px;margin:auto;box-shadow:0 12px 40px #0B1F5E10}.lock-icon{font-size:48px}.video-lock h3{font-size:28px;color:#0B1F5E;margin:10px 0}.video-lock p{color:#69738a}.video-lock .hero-actions{justify-content:center}.video-member{margin-top:20px}.member-bar{display:flex;justify-content:space-between;align-items:center;background:#0B1F5E;color:#fff;padding:18px 22px;border-radius:18px;margin-bottom:18px}.member-bar span{display:block;color:#cbd3ff;font-size:12px}.video-security-note{margin-top:18px;padding:17px 20px;border-radius:14px;background:#eaf7ed;border:1px solid #bfe3c7;color:#245d31;font-size:13px}.video-security-note span{display:block;margin-top:4px}.video-player{width:100%;max-height:65vh;margin-top:15px;border-radius:12px;background:#000}

.video-subtitle{font-size:23px;color:#0B1F5E;margin:34px 0 16px}.access-banner{display:flex;justify-content:space-between;align-items:center;gap:20px;background:#0B1F5E;color:#fff;padding:20px 24px;border-radius:18px;margin:10px 0 28px}.access-banner b,.access-banner span{display:block}.access-banner span{color:#cbd4ff;font-size:13px}.video-placeholder.locked{background:linear-gradient(135deg,#18224f,#4b5270)}.private-tag{background:#eef0f8;color:#4a526b}.locked-video{border-color:#d7dbea}.security-note{margin-top:25px;padding:18px 20px;border-radius:15px;background:#FFF4E8;border:1px solid #F2C79F;color:#6A4A2B;font-size:13px}.security-note b{color:#4A3018}
@media(max-width:600px){.access-banner{display:block}.access-banner .btn{margin-top:14px;width:100%}}

.fees-section{background:#F5FAF7}.fee-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.fee-card{background:#fff;border:1px solid #dfeae4;border-radius:24px;padding:30px;box-shadow:0 12px 35px #0B1F5E10}.fee-card h3{font-size:25px;color:#0B1F5E;margin:18px 0 8px}.fee-card .price{font-size:34px;font-weight:900;color:#0B1F5E;line-height:1.15;margin:12px 0}.fee-card .price span{font-size:16px;color:#687087}.fee-card p{color:#687087}.fee-card.featured{border:2px solid #138A36;transform:translateY(-5px)}.fee-card.concession{border-top:5px solid #FF9933}.fee-card.concession .price{font-size:25px;color:#0B7A32}.fee-card .btn-green{background:#138A36;box-shadow:0 8px 20px #138A3622}.fee-note{margin-top:20px;background:#FFF4E8;border:1px solid #F2C79F;color:#6A4A2B;border-radius:14px;padding:16px 18px;font-size:13px}
@media(max-width:900px){.fee-grid{grid-template-columns:1fr 1fr}.fee-card.featured{transform:none}}
@media(max-width:600px){.fee-grid{grid-template-columns:1fr}}

/* Professional RemarChem palette: deep navy + green + Indian saffron */
:root{--rc-navy:#0B1F5E;--rc-green:#138A36;--rc-saffron:#FF9933;--rc-saffron-soft:#FFF4E8}
.site-header{box-shadow:0 2px 18px rgba(11,31,94,.06)}

.course,.video-card,.fee-card,.contact-card a{transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.course:hover,.video-card:hover,.fee-card:hover{transform:translateY(-3px);box-shadow:0 16px 42px rgba(11,31,94,.12)}
.fee-card.featured{border-color:var(--rc-green)}
.fee-card.concession{border-top-color:var(--rc-saffron)}
.fee-note,.security-note,.video-note{border-left:4px solid var(--rc-saffron)}

input:focus,select:focus,textarea:focus{outline:3px solid rgba(255,153,51,.18);border-color:#FF9933}
::selection{background:#FF9933;color:#fff}

/* Promotional poster carousel */
.poster-slider{position:relative;overflow:hidden}.poster-slides{position:relative;aspect-ratio:1/1}.poster-slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;visibility:hidden;transition:opacity .45s ease}.poster-slide.active{opacity:1;visibility:visible}.poster-dots{position:absolute;left:0;right:0;bottom:18px;display:flex;justify-content:center;gap:8px;z-index:2}.poster-dot{width:10px;height:10px;padding:0;border:2px solid #fff;border-radius:50%;background:transparent;box-shadow:0 2px 8px rgba(0,0,0,.25);cursor:pointer}.poster-dot.active{background:#FF9933}.poster-card{border:1px solid #e7e9f2}

/* V6 brand refinements */
.footer b .brand-remar,.footer b .brand-chem,.footer b .brand-science{font-weight:900}
@media (max-width:700px){.brand-logo{width:52px;height:52px;flex-basis:52px}.brand-wordmark b{font-size:16px}.brand-wordmark small{font-size:9px;letter-spacing:.8px}}


/* ===== V7: student login, student area, admin panel ===== */
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
label small{font-weight:600;color:#788197}
.alert{padding:13px 16px;border-radius:12px;margin:0 0 16px;font-weight:700;font-size:14px;border:1px solid}
.alert.error{background:#FDECEC;border-color:#F5B5B5;color:#8A1C1C}.alert.ok{background:#EAF7ED;border-color:#BFE3C7;color:#1E5C2D}.alert.warn{background:#FFF4E8;border-color:#F2C79F;color:#6A4A2B}
.page{min-height:68vh;padding:46px 0 70px;background:linear-gradient(135deg,#f7f9ff,#fff)}
.auth-card{max-width:440px;margin:20px auto;background:#fff;border:1px solid #e5e8f1;border-radius:24px;padding:32px;box-shadow:0 20px 60px #0B1F5E18}
.auth-card h1,.auth-card h2{color:#0B1F5E;margin:0 0 6px}.auth-card.center,.center{text-align:center}.muted{color:#687087}
.big-icon{font-size:52px;line-height:1.2}
.page-h{color:#0B1F5E;font-size:28px;margin:34px 0 16px}
.back{font-weight:800;color:#0B7A32}
.member-bar{display:flex;justify-content:space-between;align-items:center;gap:14px;background:#0B1F5E;color:#fff;padding:18px 22px;border-radius:18px;margin-bottom:22px}
.member-bar span{display:block;color:#cbd3ff;font-size:12px}.member-bar .btn-ghost{background:transparent;color:#fff;border-color:#ffffff55}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:8px}.tabs a{padding:11px 18px;border-radius:30px;background:#fff;border:1px solid #dfe3f5;font-weight:800;color:#0B1F5E;font-size:14px}
.tabs a.on,.tabs a:hover{background:#0B1F5E;color:#fff;border-color:#0B1F5E}
.list{display:grid;gap:12px}.list-row{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;background:#fff;border:1px solid #e5e8f1;border-radius:16px;padding:16px 20px;margin-bottom:12px}
.list .list-row{margin:0}
.steps{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:14px;counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:38px 1fr;column-gap:14px;align-items:center}
.steps li::before{content:counter(s);grid-row:span 2;width:38px;height:38px;border-radius:50%;background:#FF9933;color:#0B1F5E;font-weight:900;display:grid;place-items:center}
.steps b{color:#fff}.steps span{color:#c8d0ff;font-size:13px}
.embed{position:relative;aspect-ratio:16/9;margin-top:16px;border-radius:14px;overflow:hidden;background:#000}.embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
a.video-placeholder{text-decoration:none}

/* admin */
.adminbody{background:#f4f6fc}
.admin-top{background:#0B1F5E;color:#fff;padding:14px 0}.admin-top a{color:#cbd3ff}.admin-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.linkbtn{background:none;border:0;color:#FF9933;font:inherit;font-weight:800;cursor:pointer;padding:0}
.admin-main{padding:26px 0 70px}.admin-main h2{color:#0B1F5E;margin:26px 0 14px;font-size:26px}
.tabs.big{margin-bottom:6px}.badge{background:#E53935;color:#fff;font-style:normal;border-radius:20px;padding:1px 8px;font-size:12px;margin-left:4px}
.panel{background:#fff;border:1px solid #e1e5f1;border-radius:20px;padding:24px;margin-bottom:18px;box-shadow:0 8px 28px #0B1F5E0D}
.panel label{margin-bottom:12px}.panel .form-grid{gap:0 14px}
.panel details{margin-bottom:14px;border:1px dashed #cfd6ed;border-radius:12px;padding:12px 14px;background:#fafbff}.panel summary{cursor:pointer;font-weight:800;color:#0B1F5E}
.panel code,.tiny code{background:#EDF7F0;padding:2px 6px;border-radius:5px}
.app-card{display:grid;grid-template-columns:1fr 1.3fr auto;gap:22px;background:#fff;border:1px solid #e1e5f1;border-left:5px solid #FF9933;border-radius:18px;padding:20px 22px;margin-bottom:14px;align-items:start}
.app-card h3{margin:0 0 8px;color:#0B1F5E;font-size:22px}.kv{display:grid;gap:4px;font-size:14px}.kv a{color:#0B7A32;font-weight:800}
.actions{display:flex;gap:8px;flex-wrap:wrap}.actions form{margin:0}
.tablewrap{overflow-x:auto;background:#fff;border:1px solid #e1e5f1;border-radius:16px}.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:760px}
.tbl th{text-align:left;background:#f1f4fb;color:#0B1F5E;padding:12px 14px}.tbl td{padding:12px 14px;border-top:1px solid #edf0f7;vertical-align:middle}
.tag-off{background:#FDECEC;color:#8A1C1C}
.progress{height:12px;background:#e6e9f4;border-radius:10px;overflow:hidden;margin:6px 0}.progress div{height:100%;width:0;background:linear-gradient(90deg,#138A36,#FF9933);transition:width .2s}
.btn:disabled{opacity:.6;cursor:wait}
@media(max-width:800px){.app-card{grid-template-columns:1fr}}

/* V7 polish */
[id]{scroll-margin-top:84px}
.btn{font-family:inherit;font-size:14px;line-height:1.25;text-align:center}
a.btn{text-decoration:none}
.footer b span,.footer b .brand-remar,.footer b .brand-chem,.footer b .brand-science{display:inline}
.footer b .brand-remar{color:#0B1F5E}.footer b .brand-chem{color:#FF9933}.footer b .brand-science{color:#006B2D}

.subj-h{color:#0B1F5E;font-size:22px;margin:26px 0 12px;display:flex;align-items:center;gap:10px}.subj-count{display:flex;gap:8px;flex-wrap:wrap;margin:-4px 0 14px}