:root {
    --sgv-white: #FFFFFF;
    --sgv-light-blue: #DCF5FF;
    --sgv-medium-blue: #54B6ED;
    --sgv-dark-blue: #0372B8;
    --sgv-navy: #19338F;
}

body {
    font-family: 'Source Sans Pro', sans-serif;
    color: #333;
    overflow-x: hidden;
}

.top-bar {
    background-color: var(--sgv-light-blue);
    color: var(--sgv-dark-blue);
    padding: 8px 0;
    font-size: 0.875rem;
}

.top-bar a {
    color: var(--sgv-dark-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.top-bar a:hover {
    color: var(--sgv-navy);
}

.top-bar .social-icons a {
    color: var(--sgv-dark-blue);
    margin-left: 15px;
    transition: color 0.3s ease;
}

.top-bar .social-icons a:hover {
    color: var(--sgv-navy);
}

.navbar {
    background-color: var(--sgv-white) !important;
    box-shadow: 0 4px 12px rgba(0, 114, 184, 0.1);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand img {
    height: 50px;
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.navbar .nav-link {
    color: var(--sgv-navy) !important;
    font-weight: 600;
    margin-left: 1.5rem;
    position: relative;
    transition: color 0.3s ease;
}

.navbar .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--sgv-medium-blue);
    transition: width 0.3s ease;
}

.navbar .nav-link:hover::after,
.navbar .nav-link.active::after {
    width: 100%;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
    color: var(--sgv-medium-blue) !important;
}

.btn-sgv-blue {
    background-color: var(--sgv-medium-blue);
    color: var(--sgv-white);
    border: none;
    padding: 12px 35px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.btn-sgv-blue:hover {
    background-color: var(--sgv-dark-blue);
    transform: translateY(-2px);
}

.btn-outline-light-custom {
    border: 2px solid var(--sgv-white);
    color: var(--sgv-white);
    padding: 12px 35px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-light-custom:hover {
    background-color: var(--sgv-white);
    color: var(--sgv-navy);
    transform: translateY(-2px);
}

.hero-section {
    position: relative;
    background: url('../img/background.jpg') no-repeat center center/cover;
    height: 80vh;
    color: var(--sgv-white);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(25, 51, 143, 0.8), rgba(3, 114, 184, 0.7));
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
}

.highlights-section {
    background: linear-gradient(135deg, var(--sgv-white), var(--sgv-light-blue));
}

.highlight-card {
    background: var(--sgv-white);
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(84, 182, 237, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
}

.highlight-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 30px rgba(84, 182, 237, 0.2);
}

.highlight-card i {
    transition: color 0.3s ease;
}

.highlight-card:hover i {
    color: var(--sgv-dark-blue);
}

/* Animations */
@keyframes fadeInDown {
    0% { opacity: 0; transform: translateY(-50px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(50px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    0% { opacity: 0; transform: translateX(-50px); }
    100% { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    0% { opacity: 0; transform: translateX(50px); }
    100% { opacity: 1; transform: translateX(0); }
}

.animate-fadeInDown { animation: fadeInDown 1s ease-out; }
.animate-fadeInUp { animation: fadeInUp 1s ease-out 0.2s both; }
.animate-slideIn { animation: fadeInUp 1s ease-out 0.4s both; }
.animate-slideInLeft { animation: slideInLeft 0.8s ease-out; }
.animate-slideInUp { animation: fadeInUp 0.8s ease-out; }
.animate-slideInRight { animation: slideInRight 0.8s ease-out; }
.animate-fadeIn { animation: fadeInUp 1s ease-out; }

@keyframes fadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

.main-content {
    padding-top: 5px; /* Jarak dari header */
}

footer {
    background: #004aad;
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer p {
    margin: 0;
    font-size: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section { height: 60vh; }
    .hero-content h1 { font-size: 2.5rem; }
    .hero-content p { font-size: 1.1rem; }
    .top-bar { font-size: 0.75rem; }
    .navbar-brand img { height: 40px; }
}