:root {
    --primary-blue: #003399; /* Royal Blue */
    --secondary-blue: #0055ff;
    --light-blue: #e6f0ff;
    --accent-color: #ffcc00; /* Gold/Yellow for highlights */
    --white: #ffffff;
    --gray-bg: #f8f9fa;
    --text-dark: #333333;
}

body {
    font-family: 'Sarabun', sans-serif;
    background-color: var(--gray-bg);
    color: var(--text-dark);
}

/* Navbar */
.navbar {
    background-color: var(--white);
    border-bottom: 3px solid var(--primary-blue);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: bold;
    color: var(--primary-blue) !important;
}

.nav-link {
    color: var(--text-dark) !important;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--primary-blue) !important;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    margin-bottom: 40px;
}

.hero h1 {
    font-weight: 700;
    font-size: 2.5rem;
    margin-bottom: 20px;
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

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

.card-title {
    color: var(--primary-blue);
    font-weight: bold;
}

/* FAQ Section */
.faq-icon {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

/* Topics */
.topic-list-item {
    border-left: 5px solid var(--primary-blue);
    margin-bottom: 15px;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.topic-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-blue);
    text-decoration: none;
}

.topic-title:hover {
    color: var(--secondary-blue);
}

.badge-official {
    background-color: var(--primary-blue);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
}

/* Forms */
.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    border-radius: 8px;
    padding: 10px 25px;
}

.btn-primary:hover {
    background-color: var(--secondary-blue);
    border-color: var(--secondary-blue);
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.25rem rgba(0, 51, 153, 0.25);
}

/* Comment Box */
.comment-card {
    border-radius: 12px;
    border: 1px solid #eee;
}

.official-reply {
    background-color: var(--light-blue);
    border: 1px solid var(--primary-blue);
}

/* Footer */
footer {
    background-color: var(--primary-blue);
    color: white;
    padding: 40px 0;
    margin-top: 60px;
}