/* Hero Section */
        .hero {
            background: linear-gradient(135deg, #0a2540, #1e5a8e);
            color: white;
            padding: 100px 40px;
        }

        .hero-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-badge {
            display: inline-block;
            background: linear-gradient(135deg, #21cdc0, #1e5a8e);
            color: white;
            padding: 10px 24px;
            border-radius: 50px;
            font-size: 0.9em;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .hero h1 {
            font-size: 3em;
            font-weight: 800;
            color: white;
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .hero-description {
            font-size: 1.2em;
            color: rgb(225, 236, 255);
            margin-bottom: 30px;
        }

        .hero-cta {
            display: flex;
            gap: 20px;
            margin-bottom: 40px;
        }

        .btn-primary {
            background: linear-gradient(135deg, #21cdc0, #1e5a8e);
            color: white;
            padding: 18px 40px;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 600;

            transition: transform 0.3s;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
        }

        .btn-secondary {
            background: white;
            color: #1e5a8e;
            padding: 18px 40px;
            border: 2px solid #1e5a8e;
            border-radius: 10px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
        }

        .btn-secondary:hover {
            background: #1e5a8e;
            color: white;
        }

        .hero-stats {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .stat-item {
            background: white;
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .stat-number {
            font-size: 2em;
            font-weight: 800;
            color: #21cdc0;
        }

        .stat-label {
            font-size: 0.9em;
            color: #64748b;
        }

        .hero-visual {
            border-radius: 20px;
            min-height: 500px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #64748b;
           text-align: center;
        }

        /* Section Styling */
        .section {
            padding: 100px 40px;
        }

        .section-gray {
            background: #f8fafb;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 60px;
        }

        .section-tag {
            color: #21cdc0;
            font-weight: 600;
            font-size: 0.95em;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 15px;
        }

        .section-title {
            font-size: 2.5em;
            font-weight: 700;
            color: #0a2540;
            margin-bottom: 20px;
        }

        .section-description {
            font-size: 1.15em;
            color: #64748b;
        }

        /* Overview Grid */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .overview-content h3 {
            font-size: 1.8em;
            color: #0a2540;
            margin-bottom: 20px;
        }

        .overview-content p {
            font-size: 1.05em;
            color: #4a5568;
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .overview-points {
            list-style: none;
            margin-top: 30px;
        }

        .overview-points li {
            padding: 15px 0 15px 50px;
            position: relative;
            font-size: 1.05em;
            color: #2c3e50;
        }

        .overview-points li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #21cdc0;
            font-weight: 800;
            font-size: 1.5em;
        }

        .overview-visual {
            background: linear-gradient(135deg, #e0f2fe, #dbeafe);
            padding: 60px;
            border-radius: 20px;
            min-height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #64748b;
        }

        /* Features Grid */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .feature-card {
            background: white;
            padding: 40px;
            border-radius: 16px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
            transition: all 0.3s;
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 35px rgba(33, 205, 192, 0.15);
        }

        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, rgba(33, 205, 192, 0.1), rgba(30, 90, 142, 0.1));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2em;
            margin-bottom: 20px;
            color: #21cdc0;
        }

        .feature-card h3 {
            font-size: 1.3em;
            color: #0a2540;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .feature-card p {
            color: #64748b;
            line-height: 1.7;
        }

        /* Technology Section */
        .tech-details {
            background: linear-gradient(135deg, #0a2540, #1e5a8e);
            color: white;
            padding: 60px;
            border-radius: 24px;
            margin-top: 40px;
        }

        .tech-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
        }

        .tech-item {
            display: flex;
            gap: 20px;
        }

        .tech-icon {
            width: 60px;
            height: 60px;
            background: rgba(33, 205, 192, 0.2);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8em;
            flex-shrink: 0;
        }

        .tech-content h4 {
            font-size: 1.3em;
            margin-bottom: 10px;
            color: #FFFFFF;
        }

        .tech-content p {
            opacity: 0.9;
            line-height: 1.7;
        }

        /* Gallery */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .gallery-item {
            aspect-ratio: 4/3;
            background: linear-gradient(135deg, #e0f2fe, #dbeafe);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #64748b;
            position: relative;
        }

        .gallery-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(10, 37, 64, 0.9);
            color: white;
            padding: 15px;
            font-size: 0.9em;
        }

        /* Video Section */
        .video-container { position: relative; width: 100%; padding-bottom: 56.25%; /* 16:9 ratio */ height: 0; overflow: hidden; border-radius: 20px; background: #000; }
        .video-container iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; border-radius: 20px; }

        .video-placeholder {
            color: white;
            text-align: center;
        }

        .play-button {
            width: 80px;
            height: 80px;
            background: #21cdc0;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2em;
            margin: 0 auto 20px;
            cursor: pointer;
        }

        /* Timeline */
        .timeline-item {
            display: grid;
            grid-template-columns: 100px 1fr;
            gap: 30px;
            margin-bottom: 40px;
        }

        .timeline-number {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #21cdc0, #1e5a8e);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2em;
            font-weight: 800;
            color: white;
        }

        .timeline-content {
            background: white;
            padding: 30px;
            border-radius: 16px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
            border-left: 4px solid #21cdc0;
        }

        .timeline-content h3 {
            font-size: 1.4em;
            color: #0a2540;
            margin-bottom: 10px;
        }

        .timeline-content p {
            color: #64748b;
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #21cdc0, #1e5a8e);
            padding: 100px 40px;
            text-align: center;
            color: white;
        }

        .cta-content h2 {
            font-size: 2.8em;
            margin-bottom: 20px;
            font-weight: 800;
        }

        .cta-content p {
            font-size: 1.3em;
            margin-bottom: 40px;
            opacity: 0.95;
        }

        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
        }

        .btn-cta-white {
            background: white;
            color: #1e5a8e;
            padding: 20px 50px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1em;
        }

        .btn-cta-outline {
            background: transparent;
            color: white;
            padding: 20px 50px;
            border: 2px solid white;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1em;
        }

        .contact-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 60px;
        }

        .contact-card {
            background: rgba(255, 255, 255, 0.15);
            padding: 30px;
            border-radius: 16px;
        }

        .contact-card-icon {
            font-size: 2.5em;
            margin-bottom: 15px;
        }

        .contact-card h4 {
            font-size: 1.2em;
            margin-bottom: 10px;
        }

/* Tablet screens */
@media (max-width: 992px) {
    .hero-container,
    .overview-grid,
    .tech-grid {
        grid-template-columns: 1fr; /* stack vertically */
        gap: 30px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 per row */
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 per row */
    }

    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero h1 {
        font-size: 2.2em;
    }
}

/* Mobile screens */
@media (max-width: 576px) {
    .hero {
        padding: 60px 20px;
    }

    .hero h1 {
        font-size: 1.8em;
    }

    .hero-description {
        font-size: 1em;
    }

    .hero-cta {
        flex-direction: column;
        gap: 15px;
    }

    .features-grid,
    .gallery-grid,
    .contact-cards {
        grid-template-columns: 1fr; /* single column */
    }

    .btn-primary,
    .btn-secondary,
    .btn-cta-white,
    .btn-cta-outline {
        padding: 14px 24px;
        font-size: 1em;
    }

    .section {
        padding: 60px 20px;
    }
}