:root{--primary:#0f766e;--primary-dark:#115e59;--secondary:#f59e0b;--bg:#f8fafc;--white:#fff;--text:#1f2937;--muted:#6b7280;--border:#dbe3ea;--shadow:0 12px 35px rgba(15,118,110,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:'SolaimanLipi','Solaiman Lipi','Noto Serif Bengali',sans-serif;line-height:1.7}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}.container{width:min(1180px,92%);margin:auto}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);box-shadow:0 4px 20px rgba(0,0,0,.05)}.nav-wrap{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:12px 0}.brand{display:flex;align-items:center;gap:14px}.brand h1{font-size:1.25rem;margin:0;color:var(--primary-dark)}.brand p{margin:0;color:var(--muted);font-size:.9rem}.brand-logo,.brand-fallback{width:54px;height:54px;border-radius:50%;object-fit:cover}.brand-fallback{display:grid;place-items:center;background:var(--primary);color:#fff;font-weight:700}.nav-menu{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.nav-menu a{font-weight:600}.nav-menu a:hover{color:var(--primary)}.admin-btn{padding:10px 16px;border-radius:999px;background:var(--primary);color:#fff!important}
.hero{padding:26px 0 46px}.slider{position:relative;border-radius:28px;overflow:hidden;box-shadow:var(--shadow);min-height:520px;background:#0b1320}.slide{display:none;position:absolute;inset:0}.slide.active{display:block}.slide img{width:100%;height:520px;object-fit:cover;filter:brightness(.5)}.slide-content{position:absolute;left:8%;top:50%;transform:translateY(-50%);max-width:700px;color:#fff}.tag{display:inline-block;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.18);backdrop-filter:blur(6px);font-weight:700}.slide-content h2{font-size:clamp(2rem,5vw,3.7rem);margin:14px 0}.slide-content p{font-size:1.06rem}.btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:22px}.btn{display:inline-block;padding:13px 24px;border-radius:999px;font-weight:700}.btn-primary{background:var(--secondary);color:#111}.btn-light{border:1px solid rgba(255,255,255,.55);color:#fff}.slider-controls{position:absolute;inset:auto 18px 18px auto;display:flex;gap:10px;z-index:5}.slider-controls button{width:44px;height:44px;border:none;border-radius:50%;cursor:pointer;background:rgba(255,255,255,.2);color:#fff;font-size:18px}
section{padding:70px 0}.section-head{text-align:center;margin-bottom:32px}.section-head h2{margin:0 0 8px;color:var(--primary-dark);font-size:2rem}.section-head p{margin:0;color:var(--muted)}.grid{display:grid;gap:24px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.card{background:var(--white);padding:24px;border-radius:24px;box-shadow:var(--shadow);border:1px solid var(--border)}.card h3{margin-top:0;color:var(--primary-dark)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:-48px;position:relative;z-index:5}.stat{padding:24px;border-radius:22px;background:#fff;box-shadow:var(--shadow);text-align:center}.stat strong{display:block;font-size:2rem;color:var(--primary-dark)}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;background:#fff;border-radius:22px;overflow:hidden;box-shadow:var(--shadow)}.table th,.table td{padding:14px;border:1px solid var(--border);vertical-align:top}.table th{background:#def7ec;color:#065f46;text-align:left}.notice{background:#fffbeb;border-left:5px solid var(--secondary);padding:18px;border-radius:16px}.page-banner{padding:70px 0;background:linear-gradient(135deg,rgba(15,118,110,.94),rgba(17,94,89,.95));color:#fff;margin-bottom:10px}.page-banner h2{margin:0 0 8px;font-size:2.4rem}.page-banner p{margin:0;max-width:720px}.form-card{background:#fff;padding:28px;border-radius:26px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.full{grid-column:1/-1}label{display:block;font-weight:700;margin-bottom:8px;color:#134e4a}input,textarea,select{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:14px;font:inherit;background:#fff}textarea{min-height:110px;resize:vertical}button{font:inherit}.submit-btn{border:none;background:var(--primary);color:#fff;padding:14px 24px;border-radius:14px;font-weight:700;cursor:pointer}.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.gallery .item{background:#fff;padding:14px;border-radius:20px;box-shadow:var(--shadow)}.gallery img{height:220px;width:100%;object-fit:cover;border-radius:14px}.site-footer{background:#0f172a;color:#e5e7eb;padding:48px 0 26px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:22px}.site-footer h3,.site-footer h4{color:#fff}.site-footer ul{padding-left:18px}.copyright{padding-top:18px;margin-top:20px;border-top:1px solid rgba(255,255,255,.1);text-align:center;color:#cbd5e1}
.flash{padding:14px 16px;border-radius:14px;margin-bottom:16px}.flash.success{background:#ecfdf5;color:#065f46}.flash.error{background:#fef2f2;color:#991b1b}
.admin-layout{display:grid;grid-template-columns:270px 1fr;min-height:100vh}.admin-sidebar{background:#0f172a;color:#fff;padding:24px}.admin-sidebar a{display:block;padding:10px 12px;border-radius:12px;margin-bottom:6px}.admin-sidebar a:hover,.admin-sidebar a.active{background:rgba(255,255,255,.1)}.admin-content{padding:28px;background:#f8fafc}.admin-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.admin-table img{width:70px;height:50px;object-fit:cover;border-radius:8px}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(480px,100%);background:#fff;padding:30px;border-radius:24px;box-shadow:var(--shadow)}
@media (max-width:980px){.stats,.grid-3,.grid-2,.footer-grid,.gallery,.form-grid,.admin-layout{grid-template-columns:1fr}.admin-layout{display:block}.nav-menu{display:none}.slide img,.slider{min-height:440px;height:440px}.slide-content{left:6%;right:6%;max-width:none}.slide-content h2{font-size:2.2rem}}