/* Animated Background */
.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #07175a 0%, #04236b 100%);
}

.ocean {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(to top, #2c1ad3, #175899);
    animation: wave 8s ease-in-out infinite;
}

.ocean:before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    width: 100%;
    height: 20px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 200'%3E%3Cpath d='M0,100 C300,150 900,50 1200,100 L1200,200 L0,200 Z' fill='%234da6ff'/%3E%3C/svg%3E") repeat-x;
    animation: wave-top 6s ease-in-out infinite;
}

.cloud {
    position: absolute;
    background: rgba(18, 54, 172, 0.8);
    border-radius: 50px;
    opacity: 0.7;
}

.cloud:before {
    content: '';
    position: absolute;
    background: rgba(35, 28, 145, 0.8);
    border-radius: 50px;
}

.cloud:after {
    content: '';
    position: absolute;
    background: rgba(111, 104, 238, 0.8);
    border-radius: 50px;
}

.cloud1 {
    width: 100px;
    height: 40px;
    top: 20%;
    left: -150px;
    animation: float 24s infinite linear;
}

.cloud1:before {
    width: 50px;
    height: 40px;
    top: -20px;
    left: 10px;
}

.cloud1:after {
    width: 60px;
    height: 30px;
    top: -10px;
    right: 10px;
}

.cloud2 {
    width: 80px;
    height: 30px;
    top: 40%;
    left: -120px;
    animation: float 25s infinite linear;
    animation-delay: -5s;
}

.cloud2:before {
    width: 40px;
    height: 30px;
    top: -15px;
    left: 15px;
}

.cloud2:after {
    width: 50px;
    height: 25px;
    top: -8px;
    right: 15px;
}

.cloud3 {
    width: 120px;
    height: 50px;
    top: 40%;
    left: -180px;
    animation: float 26s infinite linear;
    animation-delay: -10s;
}

.cloud3:before {
    width: 60px;
    height: 50px;
    top: -25px;
    left: 20px;
}

.cloud3:after {
    width: 70px;
    height: 35px;
    top: -15px;
    right: 20px;
}

.cloud4 {
    width: 100px;
    height: 50px;
    top: 20%;
    left: -200px;
    animation: float 25s infinite linear;
    animation-delay: -15s;
}

.cloud4:before {
    width: 40px;
    height: 30px;
    top: -15px;
    left: 15px;
}

.cloud4:after {
    width: 50px;
    height: 25px;
    top: -8px;
    right: 15px;
}

@keyframes float {
    0% { transform: translateX(-200px); }
    100% { transform: translateX(calc(100vw + 200px)); }
}

@keyframes wave {
    0%, 100% { transform: translateY(0px); }
    30% { transform: translateY(-20px); }
}

@keyframes wave-top {
    0%, 100% { transform: translateX(0px); }
    20% { transform: translateX(-20px); }
}

/* Main Content */
.container {
    position: relative;
    z-index: 1;
    min-height: 1vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

.logo-container {
    margin-top: 40px;
    margin-bottom: 50px;
    animation: fadeInUp 1s ease-out;
}

.logo {
    width: 120px;  /* Ukuran container logo */
    height: 120px; /* Ukuran container logo */
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px; /* Sudut tumpul */
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden; /* Memastikan gambar tidak keluar dari border-radius */
}

.logo img {
    width: 100%;  /* Gambar mengikuti ukuran container */
    height: 100%; /* Gambar mengikuti ukuran container */
    object-fit: cover; /* Mempertahankan proporsi gambar */
    border-radius: 20px; /* Sudut tumpul pada gambar */
}

.logo:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
}

.content {
    text-align: center;
    max-width: 800px;
    margin-bottom: 50px;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.school-name {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    letter-spacing: -2px;
    line-height: 1.1;
}

.tagline {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    font-weight: 300;
    line-height: 1.4;
}

.description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 50px;
    font-weight: 400;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: white;
    margin-bottom: 15px;
}

.feature-desc {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.5;
}

.instagram-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: white;
    padding: 18px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease-out 0.9s both;
}

.instagram-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.instagram-icon {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .school-name {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.2rem;
    }
    
    .features {
        grid-template-columns: 1fr;
    }
    
    .logo {
        width: 100px;
        height: 100px;
        font-size: 40px;
    }
}

.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 24px; /* Dikurangi dari 16px menjadi 8px */
    height: 50px; /* Tambahkan height tetap */
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0; /* Reset margin default */
    padding: 0; /* Reset padding default */
}

.nav-links a {
    text-decoration: none;
    color: #1d1d1f;
    font-weight: 400;
    font-size: 15px; /* Dikurangi dari 17px */
    transition: color 0.3s ease;
    position: relative;
    line-height: 1; /* Tambahkan line-height yang ketat */
}

.nav-links a:hover {
    color: #007AFF;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #007AFF;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}