:root {
    --primary-blue: #0b1a30;
    --navy-blue: #002147;
    --accent-blue: #0056b3;
    --yellow-gold: #ffc107;
    --light-bg: #f4f7f6;
    --white: #ffffff;
    --text-dark: #333333;
    --text-gray: #666666;
    --border-color: #e0e0e0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--light-bg);
    color: var(--text-dark);
}

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

/* Top Bar */
.top-bar {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 8px 0;
    font-size: 13px;
}

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

.top-bar .info span {
    margin-right: 20px;
}

.top-bar .info i {
    color: var(--yellow-gold);
    margin-right: 5px;
}

.top-bar .socials a {
    color: var(--white);
    margin-left: 12px;
    text-decoration: none;
}

.top-bar .socials a:hover {
    color: var(--yellow-gold);
}

/* Header & Nav */
.navbar {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 40px;
    color: var(--navy-blue);
}

.logo-text h1 {
    font-size: 22px;
    color: var(--navy-blue);
    line-height: 1;
    font-weight: 800;
}

.logo-text h2 {
    font-size: 16px;
    color: var(--navy-blue);
    line-height: 1;
    font-weight: 700;
}

.logo-text p {
    font-size: 10px;
    color: var(--text-gray);
    font-style: italic;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 15px;
    transition: 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-blue);
    border-bottom: 2px solid var(--accent-blue);
    padding-bottom: 3px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #051329 0%, #0a2540 100%);
    color: var(--white);
    padding: 60px 0;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.hero-content {
    flex: 1;
}

.hero-content h3 {
    font-size: 20px;
    font-weight: 400;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.1;
    margin: 10px 0;
}

.hero-content h1 span {
    color: var(--yellow-gold);
}

.hero-content .tagline {
    font-size: 14px;
    margin-bottom: 15px;
    color: #a0aec0;
}

.hero-content .desc {
    font-size: 15px;
    margin-bottom: 25px;
    max-width: 500px;
    line-height: 1.5;
}

.btn {
    display: inline-block;
    padding: 10px 22px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: 0.3s;
}

.btn-primary {
    background-color: var(--yellow-gold);
    color: var(--primary-blue);
}

.btn-primary:hover {
    background-color: #e0a800;
}

.hero-image {
    flex: 1;
    position: relative;
    text-align: center;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.badge {
    position: absolute;
    right: 20px;
    bottom: 20px;
    background: rgba(0,0,0,0.8);
    border: 1px solid var(--accent-blue);
    padding: 10px 15px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.badge i {
    color: var(--yellow-gold);
}

/* Courses Section */
.courses-section {
    padding: 50px 0;
}

.section-title {
    text-align: center;
    color: var(--navy-blue);
    font-size: 26px;
}

.title-underline {
    width: 80px;
    height: 3px;
    background-color: var(--accent-blue);
    margin: 8px auto 30px auto;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.course-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
}

.card-img img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 4px;
}

.course-card h3 {
    text-align: center;
    color: var(--navy-blue);
    margin: 12px 0;
    font-size: 18px;
}

.course-card ul {
    list-style: none;
    margin-bottom: 20px;
    flex-grow: 1;
}

.course-card ul li {
    font-size: 13px;
    padding: 4px 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 15px;
}

.course-card ul li::before {
    content: "•";
    color: var(--navy-blue);
    font-weight: bold;
    position: absolute;
    left: 0;
}

.btn-card {
    background-color: var(--navy-blue);
    color: var(--white);
    text-align: center;
    font-size: 13px;
    padding: 8px 0;
}

.btn-card:hover {
    background-color: var(--accent-blue);
}

/* Stats Bar */
.stats-bar {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: 25px 0;
}

.stats-container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.stat-item i {
    font-size: 30px;
    color: var(--yellow-gold);
}

.stat-text h3 {
    font-size: 22px;
    line-height: 1;
}

.stat-text p {
    font-size: 12px;
    color: #ccc;
}

/* Details Section */
.details-section {
    padding: 50px 0;
    background-color: var(--white);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
}

.detail-box h3 {
    color: var(--navy-blue);
    font-size: 16px;
    margin-bottom: 12px;
}

.detail-box p {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.5;
    margin-bottom: 6px;
}

.detail-box ul {
    list-style: none;
}

.detail-box ul li {
    font-size: 13px;
    color: var(--text-gray);
    margin-bottom: 8px;
}

.detail-box ul li i {
    color: #28a745;
    margin-right: 6px;
}

.detail-icon {
    font-size: 24px;
    color: var(--navy-blue);
    margin-bottom: 8px;
}

/* Footer */
footer {
    background-color: #050c18;
    color: #888;
    padding: 15px 0;
    font-size: 13px;
}

.text-center {
    text-align: center;
}