/* Basic Reset & Defaults */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Sarabun', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff; /* Default background, can be overridden by page-specific styles */
    font-size: 16px;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    padding: 0 20px;
}

/* --- Top Bar Styles --- */
.top-bar {
    background-color: #002244;
    color: #e0e0e0;
    padding: 0.5rem 0;
    font-size: 0.85rem;
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.top-bar a {
    color: #f0ad4e;
    text-decoration: none;
    margin-left: 10px;
    transition: color 0.3s ease;
}
.top-bar a:hover {
    color: #fff;
}
.top-bar .audience-nav a:first-child {
    margin-left: 0;
}
.top-bar .quick-links a:first-child {
    margin-left: 0;
}
.top-bar .audience-nav span {
    margin: 0 5px;
    color: #777;
}
.top-bar i {
    margin-right: 4px;
}
/* --- END: Top Bar Styles --- */


/* Header */
.main-header {
    background: #fff;
    padding: 0.5rem 0;
    position: sticky;
    top: 0;
    z-index: 999;
    min-height: 60px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

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

.main-header .logo {
    font-size: 1.7rem;
    font-weight: 700;
    text-decoration: none;
    color: #003366;
    display: flex;
    align-items: center;
    gap: 0;
}
.main-header .logo .logo-img { height: 90px; transition: height 0.3s ease; }
.logo-separator {
    width: 1px;
    height: 45px;
    background-color: #e0e0e0;
    margin: 0 20px;
}
.main-header .logo span {
    font-size: 2.5rem;
    line-height: 1;
}
.main-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    margin: 0;
    padding: 0;
}

.main-nav ul li {
    margin-left: 25px;
}

.main-nav ul li a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s ease;
}
.main-nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -3px;
    left: 0;
    background-color: #f0ad4e;
    transition: width 0.3s ease;
}
.main-nav ul li a:hover,
.main-nav ul li a.active {
    color: #003366;
}
.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
    width: 100%;
}

/* --- Dropdown Menu Styles --- */
.main-nav ul li.dropdown {
    position: relative;
}
.main-nav ul li.dropdown > a i {
    font-size: 0.7em;
    margin-left: 5px;
    transition: transform 0.3s ease;
}
.main-nav ul li.dropdown:hover > a i {
    transform: rotate(180deg);
}
.main-nav .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    list-style: none;
    padding: 10px 0;
    margin: 0;
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-radius: 0 0 5px 5px;
    z-index: 1000;
}
.main-nav .dropdown:hover .dropdown-menu {
    display: block;
}
.main-nav .dropdown-menu li {
    margin: 0;
}
.main-nav .dropdown-menu li a {
    display: block;
    padding: 10px 20px;
    color: #333;
    font-weight: 400;
    white-space: nowrap;
}
.main-nav .dropdown-menu li a:hover { background-color: #f8f9fa; color: #003366; }

/* --- Nav Button Style --- */
.main-nav .nav-button {
    margin-left: 25px;
}
.main-nav .nav-button a.btn-primary-nav {
    background: #f0ad4e;
    color: #003366;
    padding: 8px 20px;
    border-radius: 30px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
}
.main-nav .nav-button a.btn-primary-nav:hover { background: #e69500; transform: translateY(-2px); color: #003366; }
.main-nav .nav-button a.btn-primary-nav::after { display: none; }

/* --- General Buttons --- */
.btn-primary {
    display: inline-block;
    background: #f0ad4e;
    color: #003366;
    padding