:root {
    --primary-color: #0070BA;
    --secondary-color: #4C4C4C;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --dark-gray: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--secondary-color);
}

/* Offset for fixed header when scrolling to anchors */
section[id], .service-detail .detail-section[id] {
    scroll-margin-top: 90px; /* Adjust this value to match your header's height */
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo img {
    height: 50px;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-link {
    color: var(--secondary-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    min-width: 200px;
    border-radius: 4px;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

/* Hero Section */
.hero {
    height: 50vh; /* Set height to 50% of the viewport height */
    min-height: 450px; /* Ensure a minimum height on all screens */
    position: relative;
    overflow: hidden;
    margin-top: 80px;
}

.hero-slider {
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.slide.active {
    opacity: 1;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--white);
}

.slide-content h1 {
    font-size: 2.8rem; /* Adjust font size for smaller hero */
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-content p {
    font-size: 1.3rem; /* Adjust paragraph font size */
}

/* Services Section */
.services {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.service-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.service-card .learn-more {
    display: inline-block;
    margin-top: 1rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

/* About Section */
.about {
    padding: 5rem 0;
}

.about-content {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    align-items: flex-start;
}

.about-text {
    flex: 2;
    min-width: 300px; /* Ensure it doesn't get too squished */
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    height: auto;
}

.company-values {
    flex: 1;
    min-width: 300px; /* Ensure it doesn't get too squished */
    background-color: #f9f9f9;
    padding: 1.5rem;
    border-radius: 8px;
}

.company-values h3 {
    color: var(--primary-color);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
    border-bottom: 2px solid var(--light-gray);
    padding-bottom: 0.5rem;
}

/* Service Details Sections */
.service-detail {
    padding: 5rem 0;
}

.service-detail p,
.service-detail ul {
    margin-bottom: 1.5rem;
}

.service-detail ul {
    list-style-position: outside;
    padding-left: 1.5rem; /* Replaces margin-left */
}

.service-detail h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.4rem;
}

/* Alternating background colors for contrast */
section.service-detail:nth-of-type(odd) {
    background-color: var(--light-gray);
}
section.service-detail:nth-of-type(even) {
    background-color: var(--white);
}

/* Tracking Section */
.tracking {
    padding: 5rem 0;
    background-color: var(--light-gray);
}

.tracking-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tracking-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.btn-track {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 4px;
    margin-top: 1rem;
    transition: background-color 0.3s ease;
}

.btn-track:hover {
    background-color: #005a94;
}

/* Contact Section */
.contact {
    padding: 5rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 4rem;
}

.contact-info .info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-info .info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.25rem;
}

.contact-info a {
    color: var(--secondary-color);
}

.contact-form form {
    display: grid;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.btn-submit {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.8rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-submit:hover {
    background-color: #005a94;
}

/* Footer */
.footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    align-items: start;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo img {
    height: 50px;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 0;
    display: inline-block;
}

.social-icon {
    color: var(--white);
    font-size: 1.5rem;
    margin-right: 1rem;
    transition: color 0.3s ease;
}

.social-icon:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--white);
        padding: 1rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: block;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        margin-left: 1rem;
    }
}