/* Main Styles - Viet Global Logistics */
:root {
    --primary-color: #0033A0;
    --secondary-color: #00A9E0;
    --accent-color: #FF6B00;
    --light-color: #F8F9FA;
    --dark-color: #212529;
    --gray-color: #6C757D;
}

/* General */
body {
    font-family: 'Inter', sans-serif;
    color: var(--dark-color);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

/* Top Bar */
.top-bar {
    background: var(--primary-color);
    color: white;
    padding: 10px 0;
    font-size: 0.9rem;
}

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

.top-bar .contact-info i {
    margin-right: 5px;
}

.language-switcher a {
    color: white;
    text-decoration: none;
    margin-left: 10px;
    padding: 5px 10px;
    border-radius: 3px;
}

.language-switcher a.active {
    background: var(--secondary-color);
}

/* Navigation */
.navbar {
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.logo {
    display: inline-block;
}

.logo-main {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: 24px;
    color: var(--primary-color);
    display: block;
    line-height: 1.2;
}

.logo-sub {
    font-size: 12px;
    color: var(--gray-color);
    letter-spacing: 1px;
    display: block;
}

.navbar-nav .nav-link {
    color: var(--dark-color) !important;
    font-weight: 500;
    margin: 0 5px;
    padding: 8px 15px !important;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    background: rgba(0, 51, 160, 0.1);
}

.navbar-nav .btn-track {
    background: var(--accent-color);
    color: white !important;
    border-radius: 5px;
}

.navbar-nav .btn-quote {
    background: var(--primary-color);
    color: white !important;
    border-radius: 5px;
}

.navbar-nav .btn-track:hover,
.navbar-nav .btn-quote:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 100px 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons .btn {
    margin-right: 15px;
    margin-bottom: 10px;
}

.btn-primary {
    background: var(--accent-color);
    border-color: var(--accent-color);
    padding: 12px 30px;
    font-weight: 600;
}

.btn-primary:hover {
    background: #e55a00;
    border-color: #e55a00;
}

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

/* Services Section */
.section-header {
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-subtitle {
    color: var(--gray-color);
    font-size: 1.1rem;
}

.service-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    height: 100%;
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon i {
    font-size: 30px;
    color: white;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
}

.read-more {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.read-more i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(5px);
}

/* Tracking Section */
.tracking-form .input-group {
    max-width: 500px;
}

.tracking-form .form-control {
    padding: 15px;
    border: 2px solid var(--primary-color);
    border-right: none;
}

.tracking-form .btn {
    padding: 15px 30px;
}

/* News Section */
.news-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    height: 100%;
}

.news-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    padding: 20px;
}

.news-category {
    background: var(--secondary-color);
    color: white;
    padding: 3px 10px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-card h4 {
    margin: 10px 0;
    color: var(--primary-color);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

.footer h5 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer ul {
    list-style: none;
    padding: 0;
}

.footer ul li {
    margin-bottom: 10px;
}

.footer ul li a {
    color: #adb5bd;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer ul li a:hover {
    color: var(--secondary-color);
}

.footer .contact-info i {
    color: var(--secondary-color);
    margin-right: 10px;
    width: 20px;
}

.footer .slogan {
    color: var(--secondary-color);
    font-style: italic;
    font-weight: 600;
    margin: 10px 0;
}

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    color: white;
    margin-left: 10px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.copyright {
    color: #adb5bd;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-section {
        padding: 60px 0;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .navbar-nav .nav-link {
        margin: 5px 0;
        text-align: center;
    }
}