:root {
    --primary-color: #1a1a1a;
    /* --primary-color: #005e0c; */
    --secondary-color: #424242;
    /* --secondary-color: #2e7d32; */
    --accent-color: #f5f5f5;
    --background-start: #eeeeee;
    --background-end: #ffffff;
    --text-color: #212121;
    --text-light: #616161;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.1);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, var(--background-start) 0%, var(--background-end) 100%);
    min-height: 100vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--primary-color);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
}

.glass-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

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

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--secondary-color);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    /* Ensure no underline */
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(15, 76, 117, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 76, 117, 0.4);
    background: #0b3c5d;
}

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

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

/* Logo Styles */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--primary-color);
    text-decoration: none;
    white-space: nowrap;
}

.logo img {
    max-height: 40px;
    width: auto;
    object-fit: contain;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

/* Navigation Menu - Desktop */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
    flex: 1;
    justify-content: flex-end;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin: 0;
}

.nav-links li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--primary-color);
}

.nav-links li a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

.nav-actions {
    display: flex;
    gap: 10px;
}

/* Hero Section */
.hero {
    padding: 120px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;

    /* Background Image */
    /* background: linear-gradient(135deg, rgba(15, 76, 117, 0.85), rgba(50, 130, 184, 0.75)), */
    background: linear-gradient(135deg, rgba(130, 136, 131, 0.493), rgba(94, 97, 94, 0.493)),
        url('../images/rs.jpg') center/cover no-repeat;
    background-attachment: fixed;
    /* Parallax effect */
}

/* Overlay untuk memastikan text tetap terbaca */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(15, 76, 117, 0.3) 0%, rgba(15, 76, 117, 0.6) 100%);
    z-index: 1;
}

/* Pastikan content di atas overlay */
.hero .container {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: white;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.95);
    max-width: 600px;
    margin: 0 auto 2rem;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

/* Hero Button Styles */
.hero .btn-outline {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid white;
    color: white;
    backdrop-filter: blur(10px);
    font-weight: 600;
    text-shadow: none;
}

.hero .btn-outline:hover {
    background: white;
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.3);
}

.hero .btn-primary {
    background: white;
    color: var(--primary-color);
    border: 2px solid white;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.hero .btn-primary:hover {
    background: var(--primary-color);
    color: white;
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

/* Quick Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.stat-card {
    padding: 30px;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 10px;
    display: block;
}

/* Announcements */
.section-title {
    text-align: center;
    margin: 60px 0 40px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--secondary-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

.announcement-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.announcement-card {
    padding: 20px;
    border-left: 5px solid var(--secondary-color);
}

/* Footer */
footer {
    background: var(--primary-color);
    color: white;
    padding: 50px 0 20px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer h3 {
    color: white;
    margin-bottom: 20px;
}

.copyright {
    text-align: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Responsive */
@media (max-width: 768px) {
    .logo {
        font-size: 0.9rem;
    }

    .logo img {
        max-height: 32px;
    }

    /* Show hamburger menu */
    .mobile-menu-toggle {
        display: flex;
    }

    /* Hide nav-menu by default on mobile */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        display: flex;
        flex-direction: column;
        align-items: center;
        /* Center content */
    }

    .nav-menu.active {
        max-height: 100vh;
        padding: 30px 20px 50px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-links {
        flex-direction: column;
        gap: 15px;
        padding: 0;
        margin: 0 0 30px 0;
        width: 100%;
        text-align: center;
    }

    .nav-links li {
        border-bottom: none;
        /* Removed lines for cleaner look */
        width: 100%;
    }

    .nav-links li a {
        display: block;
        padding: 12px;
        color: var(--text-color);
        text-decoration: none;
        transition: all 0.3s;
        font-size: 1.1rem;
        border-radius: 12px;
    }

    .nav-links li a:hover,
    .nav-links li a.active {
        background: rgba(15, 76, 117, 0.08);
        color: var(--primary-color);
        transform: scale(1.02);
    }

    .nav-links li a.active::after {
        display: none;
        /* Remove underline on mobile */
    }

    .nav-actions {
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 15px;
        width: 100%;
        max-width: 300px;
        /* Limit button width */
    }

    .nav-actions .btn {
        width: 100%;
        text-align: center;
        padding: 12px;
        font-size: 1rem;
    }

    .hero {
        padding: 80px 0;
        min-height: 500px;
        background-attachment: scroll;
    }

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

    .hero p {
        font-size: 1rem;
    }
}