:root {
    --nu-green: #007641;
    /* Official NU Green approximation */
    --nu-green-dark: #004d2a;
    --nu-gold: #fecb00;
    /* Yellow/Gold accent */
    --text-dark: #1a1a1a;
    --text-light: #f5f5f5;
    --bg-light: #ffffff;
    --bg-gray: #f4f6f8;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* Reset & Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    /* color: var(--nu-green-dark); */
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

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

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--nu-green);
    color: white;
    border: 2px solid var(--nu-green);
}

.btn-primary:hover {
    background-color: var(--nu-green-dark);
    border-color: var(--nu-green-dark);
}

.btn-outline {
    background-color: transparent;
    color: var(--nu-green);
    border: 2px solid var(--nu-green);
}

.btn-outline:hover {
    background-color: var(--nu-green);
    color: white;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--nu-gold);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

/* Header & Nav */
header {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background-color: var(--nu-green-dark);
    color: white;
    padding: 0.5rem 0;
    font-size: 0.875rem;
}

.social-top i {
    font-size: 1.2rem;
    padding: 0 5px;
}

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

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--nu-green-dark);
}

.logo img {
    height: 50px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-dark);
}

.nav-links a:hover {
    color: var(--nu-green);
}

.nav-links .dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    box-shadow: var(--shadow);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    border-top: 3px solid var(--nu-gold);
    padding: 0.5rem 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.dropdown-menu li a:hover {
    background-color: var(--bg-gray);
    color: var(--nu-green);
}

.hamburger {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* Apply Animations */
.hero-content {
    animation: fadeInUp 1s ease-out;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../img/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    height: 80vh;
    display: flex;
    align-items: center;
    color: white;
    text-align: center;
}

.hero-content h1 {
    color: white;
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Features/Highlights */
.features {
    padding: 4rem 0;
    background-color: var(--bg-gray);
    margin-top: -3rem;
    position: relative;
    z-index: 10;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    animation: fadeInUp 0.8s ease-out backwards;
}

.feature-card:nth-child(1) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(2) {
    animation-delay: 0.4s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.6s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-bottom-color: var(--nu-green);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--nu-green);
    margin-bottom: 1rem;
}

/* News Section */
.news {
    padding: 5rem 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.news-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.news-img {
    height: 200px;
    background-color: #ddd;
    /* Placeholder fallback */
    background-image: url('https://placehold.co/600x400/007641/ffffff?text=Berita+NU');
    background-size: cover;
    background-position: center;
}

.news-content {
    padding: 1.5rem;
}

.news-meta {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 0.5rem;
}

.news-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

/* Lembaga Section */
.lembaga {
    padding: 5rem 0;
    background-color: var(--bg-gray);
}

.lembaga-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.lembaga-item {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    width: 150px;
    height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: var(--transition);
}

.lembaga-item:hover {
    transform: scale(1.05);
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: #ccc;
    padding: 4rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: white;
    margin-bottom: 1.5rem;
    border-left: 3px solid var(--nu-green);
    padding-left: 10px;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a:hover {
    color: var(--nu-green);
}

.copyright {
    background-color: #111;
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: var(--shadow);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
        border-bottom: 1px solid #eee;
    }

    .nav-links a {
        padding: 1rem 0;
        display: block;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
        display: none;
    }

    .dropdown.active .dropdown-menu {
        display: block;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .hamburger {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }
}