*{margin:0;padding:0;box-sizing:border-box}body{font-family:Hind Siliguri,Arial,sans-serif;background:#f9fafb;color:#1f2937;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 20px}.header{background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.1);padding:1.5rem 0;position:-webkit-sticky;position:sticky;top:0;z-index:100}.nav{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.75rem;font-weight:700;color:#10b981;text-decoration:none}.nav-links{display:flex;gap:2rem;list-style:none}.nav-links a{color:#4b5563;text-decoration:none;font-weight:500;transition:color .3s}.nav-links a:hover{color:#10b981}.btn{padding:.75rem 1.5rem;border-radius:8px;font-weight:600;text-decoration:none;display:inline-block;transition:all .3s;border:none;cursor:pointer;font-family:Hind Siliguri,Arial,sans-serif;font-size:1rem}.btn-primary{background:#10b981;color:#fff}.btn-primary:hover{background:#059669;transform:translateY(-2px);box-shadow:0 4px 12px rgba(16,185,129,.3)}.btn-outline{background:transparent;color:#10b981;border:2px solid #10b981}.btn-outline:hover{background:#10b981;color:#fff}.hero{text-align:center;padding:4rem 0;background:linear-gradient(135deg,#10b981,#059669);color:#fff}.hero h1{font-size:3rem;margin-bottom:1rem;font-weight:700}.hero p{font-size:1.25rem;margin-bottom:2rem;opacity:.9}.events-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));grid-gap:2rem;gap:2rem;padding:3rem 0}.event-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.1);transition:transform .3s,box-shadow .3s;text-decoration:none;color:inherit}.event-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.15)}.event-image{width:100%;height:220px;object-fit:cover;background:linear-gradient(135deg,#e0e7ff,#c7d2fe)}.event-content{padding:1.5rem}.event-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:#1f2937}.event-tagline{color:#6b7280;margin-bottom:1rem;font-size:.95rem}.event-meta{display:flex;flex-direction:column;gap:.5rem;color:#6b7280;font-size:.9rem}.event-meta-item{display:flex;align-items:center;gap:.5rem}.form-container{max-width:700px;margin:3rem auto;background:#fff;padding:2.5rem;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.1)}.form-title{font-size:2rem;font-weight:700;margin-bottom:2rem;color:#1f2937;text-align:center}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:#374151}.form-group input,.form-group select,.form-group textarea{width:100%;padding:.75rem;border:2px solid #e5e7eb;border-radius:8px;font-family:Hind Siliguri,Arial,sans-serif;font-size:1rem;transition:border-color .3s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#10b981}.form-group textarea{min-height:120px;resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:1rem;gap:1rem}.file-input-wrapper{border:2px dashed #10b981;border-radius:8px;padding:2rem;text-align:center;background:#f0fdf4;cursor:pointer;transition:background .3s}.file-input-wrapper:hover{background:#dcfce7}.file-input-wrapper input{display:none}.event-detail{max-width:900px;margin:3rem auto}.event-header{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.1);margin-bottom:2rem}.event-detail-image{width:100%;height:400px;object-fit:cover}.event-detail-content{padding:2rem}.event-detail-title{font-size:2.5rem;font-weight:700;margin-bottom:.5rem;color:#1f2937}.event-detail-tagline{font-size:1.25rem;color:#10b981;margin-bottom:2rem}.event-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-gap:1.5rem;gap:1.5rem;margin:2rem 0}.info-card{background:#f9fafb;padding:1.5rem;border-radius:8px;border-left:4px solid #10b981}.info-label{font-size:.875rem;color:#6b7280;margin-bottom:.25rem}.info-value{font-size:1.125rem;font-weight:600;color:#1f2937}.event-description{margin:2rem 0;line-height:1.8;color:#4b5563;white-space:pre-wrap}.registration-section{background:#fff;padding:2rem;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.1)}.alert{padding:1rem;border-radius:8px;margin-bottom:1rem}.alert-success{background:#d1fae5;color:#065f46;border:1px solid #10b981}.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #ef4444}.loading{text-align:center;padding:4rem;color:#6b7280}.empty-state{text-align:center;padding:4rem 2rem}.empty-state h2{font-size:1.5rem;color:#6b7280;margin-bottom:1rem}@media (max-width:768px){.hero h1{font-size:2rem}.events-grid,.form-row{grid-template-columns:1fr}.nav-links{gap:1rem;font-size:.9rem}.event-detail-title{font-size:1.75rem}.event-info-grid{grid-template-columns:1fr}}