/* Contoh di CSS */
html {
  font-size: 100%; /* Atau 62.5% untuk mempermudah perhitungan: 1rem = 10px */
}

body {
  font-size: 1rem; /* Ini akan jadi 16px */
}

h1 {
  font-size: 2.5rem; /* Ini akan jadi 40px (jika 1rem = 16px) */
}

p {
  font-size: 1.125rem; /* Ini akan jadi 18px */
  line-height: 1.6; /* Ini berarti 18px * 1.6 = 28.8px jarak antar baris */
}
/* CSS Reset Sederhana */
* {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
}
.ulmisi {
  list-style-position: outside;
padding-left: 15px;
}

/* Styling untuk container galeri */
        .video-gallery-container {
            background-color: #ffffff; /* Latar belakang putih untuk container */
            border-radius: 1rem; /* Sudut membulat */
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1); /* Bayangan lembut */
            padding: 2rem; /* Padding internal */
            width: 100%; /* Lebar penuh pada ukuran kecil */
            box-sizing: border-box;
        }

        /* Styling untuk judul galeri */
        .gallery-title {
            color: #1a202c; /* Warna teks gelap */
            margin-bottom: 2rem; /* Jarak bawah */
            text-align: center;
        }

        /* Styling untuk grid video */
        .video-grid {
            display: grid;
            gap: 1.5rem; /* Jarak antar video */
            /* Mengatur kolom responsif: 1 kolom di mobile, 2 di tablet, 3 di desktop */
            grid-template-columns: repeat(1, minmax(0, 1fr)); /* Default 1 kolom */
        }

        /* Media queries untuk responsivitas */
        @media (min-width: 640px) { /* breakpoint sm */
            .video-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr)); /* 2 kolom di layar kecil ke atas */
            }
        }

        @media (min-width: 1024px) { /* breakpoint lg */
            .video-grid {
                grid-template-columns: repeat(3, minmax(0, 1fr)); /* 3 kolom di layar besar ke atas */
            }
        }

        /* Styling untuk setiap item video */
        .video-item {
            background-color: #e6ffe6; /* Latar belakang abu-abu sangat muda */
            overflow: hidden; /* Memastikan konten tidak keluar dari batas */
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05); /* Bayangan item */
            transition: transform 0.2s ease-in-out; /* Transisi halus saat hover */
        }

        .video-item:hover {
            transform: translateY(-5px); /* Efek angkat saat hover */
        }

        /* Styling untuk container video responsif */
        .video-wrapper {
            position: relative;
            width: 100%;
            padding-bottom: 56.25%; /* Rasio aspek 16:9 (tinggi / lebar * 100%) */
            height: 0;
            overflow: hidden;
        }

        .video-wrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: 0; /* Menghilangkan border iframe */
        }

        /* Styling untuk judul dan deskripsi video */
        .video-info {
            padding: 1rem;
            text-align: center;
        }

        .video-info h3 {
            font-size: 1.25rem; /* Ukuran font judul */
            font-weight: 600; /* Tebal */
            color: #2d3748; /* Warna teks gelap */
            margin-bottom: 0.5rem;
        }

        .video-info p {
            font-size: 0.9rem; /* Ukuran font deskripsi */
            color: #4a5568; /* Warna teks sedang */
            line-height: 1.5;
        }





        body {
            font-family: 'Open Sans', sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #f8f8f8;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }

        /* --- Header & Navigasi --- */
        .header {
            background-color: #ffffff;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            position: fixed;
            width: 100%;
            top: 0;
            left: 0;
            z-index: 100;
        }

        .header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-family: 'Poppins', sans-serif;
            font-size: 1.8rem;
            font-weight: 700;
            color: #28a745; /* Warna hijau khas yayasan */
            text-decoration: none;
        }

        .nav-list {
            display: flex;
            list-style: none;
            gap: 1.5rem;
        }

        .nav-link {
            text-decoration: none;
            color: #555;
            font-weight: 600;
            transition: color 0.3s ease;
        }

        .nav-link:hover {
            color: #28a745;
        }

        .donate-button {
            background-color: #28a745; /* Hijau */
            color: #fff;
            padding: 0.75rem 1.5rem;
            border-radius: 5px;
            text-decoration: none;
            font-weight: 600;
            transition: background-color 0.3s ease, transform 0.2s ease;
            border: none;
            cursor: pointer;
            font-family: 'Poppins', sans-serif;
            font-size: 1rem;
        }

        .donate-button:hover {
            background-color: #218838; /* Hijau lebih gelap */
            transform: translateY(-2px);
        }

        /* Tombol Hamburger untuk Mobile */
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }

        .hamburger span {
            height: 3px;
            width: 25px;
            background-color: #333;
            border-radius: 2px;
        }

        /* --- Hero Section --- */
        .hero-section {
            background-color: #374440;
            color: #fff;
            text-align: center;
            padding: 10rem 0 8rem; /* Padding atas disesuaikan untuk fixed header */
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            min-height: 80vh; /* Set minimum height */
        }

        .hero-title {
            font-family: 'Poppins', sans-serif;
            font-size: 3rem;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .hero-subtitle {
            font-size: 1.4rem;
            margin-bottom: 2rem;

        }

        /* --- Section Umum --- */
        section {
            padding: 4rem 0;
            text-align: center;
        }

        .section-title {
            font-family: 'Poppins', sans-serif;
            font-size: 2.5rem;
            margin-bottom: 2.5rem;
            color: #28a745;
        }

        .section-description {
            font-size: 1.1rem;
            max-width: 800px;
            margin: 0 auto 3rem;
        }

        /* --- About Section --- */
        .about-section {
            background-color: #fff;
        }

        .about-content {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            text-align: left;
        }

        .about-image, .about-text {
            flex: 1 1 45%; /* Flex item will take about 45% of space */
            min-width: 300px; /* Minimum width for stacking on smaller screens */
        }

        .about-image img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
        }

        .about-text h3 {
            font-family: 'Poppins', sans-serif;
            font-size: 1.8rem;
            color: #333;
            margin-bottom: 1rem;
        }

        .about-text p {
            margin-bottom: 1rem;
            color: #555;
        }

        /* --- Program Section --- */
        .programs-section {
            background-color: #e6ffe6; /* Warna latar belakang lembut */
        }

        .program-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .program-card {
            background-color: #fff;
            padding: 1.5rem;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
            text-align: left;
            transition: transform 0.3s ease;
        }

        .program-card:hover {
            transform: translateY(-5px);
        }

        .program-card h3 {
            font-family: 'Poppins', sans-serif;
            font-size: 1.4rem;
            color: #28a745;
            margin-bottom: 0.75rem;
        }

        .program-card p {
            color: #666;
        }

        /* --- CTA Section --- */
        .cta-section {
            background: linear-gradient(to right, #28a745, #34d852); /* Gradient hijau */
            color: #fff;
            padding: 5rem 0;
        }

        .cta-section .donate-button {
            background-color: #fff;
            color: #28a745;
            margin-top: 2rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.2);
        }

        .cta-section .donate-button:hover {
            background-color: #f0f0f0;
            color: #218838;
        }

        /* --- Footer --- */
        .footer {
            background-color: #333;
            color: #fff;
            padding: 3rem 0;
            text-align: center;
        }

        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
            text-align: left;
        }

        .footer-column {
            flex: 1 1 200px;
        }

        .footer-column h4 {
            font-family: 'Poppins', sans-serif;
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: #28a745;
        }

        .footer-column p, .footer-column a {
            font-size: 0.95rem;
            color: #bbb;
            text-decoration: none;
            margin-bottom: 0.5rem;
            display: block;
        }

        .footer-column a:hover {
            color: #fff;
        }

        .social-icons {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
        }

        .social-icons a {
            color: #bbb;
            font-size: 1.5rem;
            transition: color 0.3s ease;
        }

        .social-icons a:hover {
            color: #fff;
        }

        .copyright {
            margin-top: 3rem;
            border-top: 1px solid #444;
            padding-top: 1.5rem;
            font-size: 0.85rem;
            color: #888;
            text-align: center;
        }

        /* --- Responsif --- */
        @media (max-width: 768px) {
              body {
    font-size: 1rem; /* 18px */
  }
  h1 {
    font-size: 1.75rem; /* 48px */
  }
            .hero-title {
                font-size: 1.75rem;
            }

            .hero-subtitle, .section-description, .about-text p, .program-card p, p {
                font-size: 1rem;
                letter-spacing: 0.005rem;
            }

            .section-title {
                font-size: 1.75rem;
            }

            .nav-list {
                display: none; /* Sembunyikan navigasi di mobile secara default */
                flex-direction: column;
                width: 100%;
                background-color: #fff;
                position: absolute;
                top: 100%;
                left: 0;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
                padding: 1rem 0;
                text-align: center;
            }

            .nav-list.active {
                display: flex; /* Tampilkan jika aktif */
            }

            .nav-list li {
                margin: 0.5rem 0;
            }

            .hamburger {
                display: flex; /* Tampilkan hamburger di mobile */
            }

            .header .container {
                flex-wrap: wrap; /* Izinkan wrapping jika logo terlalu panjang */
            }

            .about-content {
                flex-direction: column;
            }

            .about-image, .about-text {
                flex: 1 1 100%;
            }

            .footer-content {
                flex-direction: column;
                text-align: center;
            }

            .footer-column {
                flex: 1 1 100%;
            }

            .social-icons {
                justify-content: center;
            }
        }