main {
  background: linear-gradient(135deg, #2c5364 0%, #203a43 70%, #0f2027 100%);
}
}
                .BA {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 clamp(0.8rem, 3vw, 1.2rem);
        }

        .page-hero {
            background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
           /*: linear-gradient(to bottom, #2c5364, #f0f0f0);*/
            color: white;
            text-align: center;
            padding: clamp(3rem, 8vw, 6rem) 1rem clamp(1.5rem, 5vw, 3.5rem);
        }

        .page-hero h1 {
            font-size: clamp(2.2rem, 6vw + 1rem, 3.8rem);
            margin: 0.5rem 0 0.6rem;
        }

        .page-hero p {
            font-size: clamp(1.05rem, 2.8vw + 0.3rem, 1.3rem);
            max-width: 800px;
            margin: 0.4rem auto 0;
            opacity: 0.95;
        }

        section {
            padding: clamp(1.2rem, 3.5vw, 2.2rem) 1rem;
        }

        h2.section-title {
            text-align: center;
            font-size: clamp(2.0rem, 5vw + 0.8rem, 2.8rem);
            margin: 0 0 1.2rem;
            color: white;
            position: relative;
        }

        h2.section-title::after {
            content: '';
            width: 80px;
            height: 4px;
            background: linear-gradient(to right, #203a43, #a5d8ff);
            display: block;
            margin: 0.6rem auto 0;
            border-radius: 2px;
        }

        .activities-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: clamp(1.2rem, 3vw, 2rem);
            justify-items: center;
        }

        .activity-card {
            background: rgba(10, 101, 120, 0.30);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0,0,0,0.4);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(44, 83, 100, 0.4);
            width: 100%;
            max-width: 420px;
            color: white;
        }

        .activity-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 16px 32px rgba(0,0,0,0.5);
        }

        .activity-card img {
            width: 100%;
            height: clamp(160px, 40vw, 220px);
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }

        .activity-content {
            padding: clamp(1rem, 2.5vw, 1.4rem);
        }

        .activity-content h3 {
            margin: 0 0 0.6rem;
            color: #a5d8ff;
            font-size: clamp(1.3rem, 3.8vw + 0.5rem, 1.7rem);
        }

        .category-badge {
            display: inline-block;
            padding: 0.4rem 0.9rem;
            background: linear-gradient(to right, #2c5364, #203a43);
            color: #e2e8f0;
            border-radius: 20px;
            font-size: clamp(0.8rem, 2.3vw, 0.9rem);
            font-weight: 600;
            margin-bottom: 0.8rem;
            border: 1px solid rgba(165, 216, 255, 0.2);
        }

        .intro {
            padding-top: clamp(0.5rem, 1.8vw, 1rem); /* very small top gap after hero */
            padding-bottom: clamp(1.2rem, 3.5vw, 2.5rem);
        }

        .intro-text {
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
            font-size: clamp(1.05rem, 2.4vw, 1.2rem);
            color: #cbd5e1;
        }

        .benefits {
            background: rgba(15, 32, 39, 0.6);
            border-radius: 12px;
        }

        .benefits ul {
            list-style: none;
            padding: 0;
            margin: 0.6rem 0 0;
            display: grid;
            gap: 0.8rem;
            font-size: clamp(1rem, 2.8vw, 1.1rem);
        }

        .benefits ul li {
            background: rgba(255,255,255,0.08);
            padding: 0.7rem 1.1rem;
            border-radius: 8px;
        }

        @media (min-width: 768px) {
            .page-hero {
                padding: clamp(5rem, 10vw, 8rem) 2rem clamp(2rem, 6vw, 4rem);
            }
            section {
                padding: clamp(1.5rem, 3.5vw, 2.5rem) 0;
            }
            .intro {
                padding-top: clamp(0.6rem, 2vw, 1.2rem);
            }
        }

        @media (min-width: 1024px) {
            .BA {
                padding: 0 1.8rem;
            }
        }

        @media (min-width: 1400px) {
            .activities-grid {
                grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            }
        }