/* ===================== Design 1 — Vibrant / Modern ===================== */
:root{
  --p1:#6c5ce7; --p2:#a855f7; --p3:#ec4899; --accent:#00cec9; --gold:#fdcb6e;
  --ink:#1a1a2e; --muted:#6b6b85; --bg:#f7f7fc; --card:#ffffff;
  --radius:20px; --shadow:0 20px 50px -20px rgba(108,92,231,.35);
  --grad: linear-gradient(135deg,var(--p1),var(--p2) 55%,var(--p3));
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Hind Siliguri',sans-serif;color:var(--ink);background:var(--bg);overflow-x:hidden;line-height:1.7}
h1,h2,h3,h4{font-family:'Baloo Da 2','Hind Siliguri',sans-serif;line-height:1.3}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:100px 0;position:relative}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.eyebrow{display:inline-block;background:linear-gradient(135deg,rgba(108,92,231,.12),rgba(236,72,153,.12));color:var(--p1);font-weight:700;padding:6px 18px;border-radius:99px;font-size:.85rem;margin-bottom:14px}
.section-head h2{font-size:2.4rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.section-head p{color:var(--muted);margin-top:12px;font-size:1.05rem}

/* demo ribbon */
.demo-ribbon{background:var(--ink);color:#fff;text-align:center;font-size:.82rem;padding:8px 12px;letter-spacing:.3px}
.demo-ribbon i{color:var(--gold)}

/* floating blobs */
.blob{position:fixed;border-radius:50%;filter:blur(80px);opacity:.35;z-index:-1;animation:float 14s ease-in-out infinite}
.blob-1{width:420px;height:420px;background:var(--p1);top:-120px;right:-120px}
.blob-2{width:380px;height:380px;background:var(--p3);bottom:-140px;left:-100px;animation-delay:-6s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(30px,-40px) scale(1.08)}}

/* header */
.site-header{position:sticky;top:0;z-index:100;padding:14px 0;transition:.35s;background:rgba(255,255,255,.65);backdrop-filter:blur(14px);border-bottom:1px solid rgba(0,0,0,.05)}
.site-header.scrolled{padding:8px 0;box-shadow:0 10px 30px -15px rgba(0,0,0,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:46px;height:46px;border-radius:14px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.3rem;box-shadow:var(--shadow)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.05rem}
.brand-text small{color:var(--muted);font-size:.75rem}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav ul{display:flex;gap:26px}
.main-nav a{font-weight:600;color:var(--ink);position:relative;padding:6px 0}
.main-nav a.active,.main-nav a:hover{color:var(--p1)}
.main-nav a.active::after{content:'';position:absolute;left:0;bottom:-2px;width:100%;height:3px;border-radius:3px;background:var(--grad)}
.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 24px;border-radius:99px;font-weight:700;border:none;cursor:pointer;transition:.3s}
.btn-cta{background:var(--grad);color:#fff;box-shadow:var(--shadow)}
.btn-cta:hover{transform:translateY(-3px);box-shadow:0 26px 40px -18px rgba(108,92,231,.5)}
.btn-outline{border:2px solid var(--p1);color:var(--p1)}
.btn-outline:hover{background:var(--p1);color:#fff}
.nav-toggle{display:none;background:none;border:none;font-size:1.4rem;color:var(--p1)}

/* hero */
.hero{padding:80px 0 110px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
.hero h1{font-size:3.1rem;margin:18px 0 20px}
.hero h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:1.12rem;max-width:520px}
.hero-actions{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-card{background:var(--card);border-radius:28px;padding:26px;box-shadow:var(--shadow);position:relative;z-index:2;transform:rotate(-2deg)}
.hero-card img,.hero-card .ph{border-radius:20px}
.ph{width:100%;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;color:#fff;font-size:3rem;background:var(--grad)}
.float-chip{position:absolute;background:#fff;border-radius:16px;padding:14px 18px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;font-weight:700;z-index:3;animation:floaty 5s ease-in-out infinite}
.chip-1{top:10%;left:-40px}
.chip-2{bottom:6%;right:-30px;animation-delay:-2s}
.chip-icon{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.1rem}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}

/* stats strip */
.stats-strip{background:var(--grad);color:#fff;padding:50px 0;margin-top:-40px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-num{font-size:2.6rem;font-weight:800;font-family:'Baloo Da 2'}
.stat-label{opacity:.9;font-size:.95rem;margin-top:4px}

/* cards generic */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.card{background:var(--card);border-radius:var(--radius);padding:32px 26px;box-shadow:0 10px 30px -18px rgba(0,0,0,.12);transition:.35s;border:1px solid rgba(0,0,0,.04)}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.card-icon{width:56px;height:56px;border-radius:16px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:18px}
.card h3{font-size:1.2rem;margin-bottom:8px}
.card p{color:var(--muted);font-size:.96rem}

/* about preview split */
.about-preview{background:#fff}
.about-visual{position:relative}
.about-visual .ph{aspect-ratio:1/1;border-radius:28px}
.checklist li{display:flex;gap:12px;margin-bottom:14px;font-weight:600}
.checklist i{color:var(--accent);margin-top:3px}

/* principal message */
.msg-card{display:flex;gap:26px;background:#fff;border-radius:28px;padding:36px;box-shadow:var(--shadow);align-items:center}
.msg-avatar{width:110px;height:110px;border-radius:24px;flex:none}
.msg-quote{font-size:1.05rem;color:var(--muted);font-style:italic;margin-bottom:14px}

/* notices */
.notice-list{display:flex;flex-direction:column;gap:14px}
.notice-item{display:flex;align-items:center;gap:20px;background:#fff;border-radius:16px;padding:18px 22px;box-shadow:0 8px 24px -18px rgba(0,0,0,.15);transition:.3s}
.notice-item:hover{transform:translateX(6px);border-color:var(--p1)}
.notice-date{background:var(--grad);color:#fff;border-radius:12px;padding:10px 14px;text-align:center;font-weight:800;min-width:64px}
.notice-date small{display:block;font-weight:600;font-size:.7rem;opacity:.85}
.notice-title{flex:1;font-weight:600}
.notice-tag{font-size:.75rem;background:rgba(108,92,231,.1);color:var(--p1);padding:4px 12px;border-radius:99px;font-weight:700}

/* teachers */
.teacher-card{text-align:center}
.avatar-ring{width:120px;height:120px;border-radius:50%;margin:0 auto 18px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:2.2rem;font-weight:800;box-shadow:var(--shadow);position:relative}
.teacher-card h3{margin-bottom:2px}
.teacher-card .role{color:var(--p1);font-weight:700;font-size:.9rem}

/* timeline (about page) */
.timeline{position:relative;padding-left:34px;border-left:3px solid rgba(108,92,231,.25)}
.timeline-item{position:relative;padding-bottom:44px}
.timeline-item::before{content:'';position:absolute;left:-42px;top:2px;width:16px;height:16px;border-radius:50%;background:var(--grad);box-shadow:0 0 0 6px rgba(108,92,231,.15)}
.timeline-item h4{color:var(--p1)}

/* gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.gallery-item{border-radius:18px;overflow:hidden;aspect-ratio:1/1;position:relative;cursor:pointer}
.gallery-item .ph{width:100%;height:100%;font-size:2rem}
.gallery-item::after{content:attr(data-label);position:absolute;inset:auto 0 0 0;padding:14px;background:linear-gradient(0deg,rgba(0,0,0,.65),transparent);color:#fff;font-weight:700;transform:translateY(100%);transition:.3s}
.gallery-item:hover::after{transform:translateY(0)}
.gallery-item:hover .ph{transform:scale(1.1)}
.gallery-item .ph{transition:.4s}

/* contact */
.contact-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px}
.contact-info-card{background:var(--grad);color:#fff;border-radius:28px;padding:40px}
.contact-info-card li{display:flex;gap:14px;margin-bottom:22px;align-items:flex-start}
.contact-info-card i{font-size:1.2rem;margin-top:3px}
.form-card{background:#fff;border-radius:28px;padding:40px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-card input,.form-card textarea{width:100%;padding:14px 16px;border-radius:12px;border:2px solid #eee;font-family:inherit;font-size:1rem;transition:.3s}
.form-card input:focus,.form-card textarea:focus{outline:none;border-color:var(--p1)}
.map-ph{border-radius:20px;aspect-ratio:16/7;background:linear-gradient(135deg,#e0e7ff,#fbcfe8);display:flex;align-items:center;justify-content:center;color:var(--p1);font-weight:700;margin-top:40px}

/* cta band */
.cta-band{background:var(--ink);color:#fff;border-radius:32px;padding:60px;text-align:center;margin:0 24px}
.cta-band h2{font-size:2rem;margin-bottom:14px}
.cta-band .btn-cta{margin-top:10px}

/* footer */
.site-footer{background:#120e26;color:#c9c6e0;padding:80px 0 0;position:relative;overflow:hidden;margin-top:80px}
.footer-glow{position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:600px;height:300px;background:var(--p1);filter:blur(140px);opacity:.35}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;position:relative}
.footer-brand{margin-bottom:14px}
.footer-col h4{color:#fff;margin-bottom:18px}
.footer-col ul li{margin-bottom:10px}
.footer-col a:hover{color:#fff}
.contact-list li{display:flex;gap:10px;margin-bottom:12px}
.socials{display:flex;gap:12px;margin-top:18px}
.socials a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center}
.socials a:hover{background:var(--grad)}
.subscribe-form{display:flex;gap:8px;margin-top:14px}
.subscribe-form input{flex:1;padding:12px 14px;border-radius:10px;border:none}
.subscribe-form button{background:var(--grad);color:#fff;border:none;border-radius:10px;padding:0 16px;cursor:pointer}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);margin-top:50px;padding:20px 0;text-align:center;font-size:.85rem;position:relative}

.back-to-top{position:fixed;bottom:26px;right:26px;width:48px;height:48px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:.3s;z-index:99}
.back-to-top.show{opacity:1;pointer-events:auto}

/* page hero (inner pages) */
.page-hero{background:var(--grad);color:#fff;padding:150px 0 70px;text-align:center;margin-top:-1px}
.page-hero h1{font-size:2.6rem}
.breadcrumb{opacity:.85;margin-top:10px;font-size:.9rem}

/* animated counter helper */
[data-count]{display:inline-block}

@media(max-width:980px){
  .hero-grid,.grid-2,.contact-wrap,.footer-grid{grid-template-columns:1fr}
  .grid-3,.grid-4,.stats-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .nav-toggle{display:block}
  .main-nav{position:fixed;top:0;right:-100%;height:100vh;width:280px;background:#fff;flex-direction:column;padding:100px 30px;box-shadow:-10px 0 40px rgba(0,0,0,.15);transition:.35s;align-items:flex-start}
  .main-nav.open{right:0}
  .main-nav ul{flex-direction:column;gap:18px}
  .form-row{grid-template-columns:1fr}
  .cta-band{margin:0}
}
@media(max-width:560px){
  .stats-grid,.grid-3,.grid-4,.gallery-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:2.2rem}
  .msg-card{flex-direction:column;text-align:center}
}