/* Root Variables - Professional Logistics Color Palette */
:root {
    --primary-color: #003d82;
    --secondary-color: #e74c3c;
    --accent-color: #f39c12;
    --dark-blue: #001f3f;
    --light-blue: #3498db;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e1e8ed;
    --success: #27ae60;
    --shadow: rgba(0, 61, 130, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-white);
}

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

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--dark-blue);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--light-blue);
}

/* Header & Navigation */
.top-bar {
    background: var(--dark-blue);
    color: white;
    padding: 10px 0;
    font-size: 0.9rem;
}

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

.top-bar-info {
    display: flex;
    gap: 20px;
}

.top-bar-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.top-bar-social {
    display: flex;
    gap: 15px;
}

.top-bar-social a {
    color: white;
    font-size: 1rem;
    transition: color 0.3s;
}

.top-bar-social a:hover {
    color: var(--accent-color);
}

header {
    background: white;
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-main {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
    color: var(--secondary-color);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

nav a {
    color: var(--text-dark);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s;
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--secondary-color);
    color: white;
    border-radius: 5px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

.btn:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow);
}

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

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

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-color) 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><path d="M0,400 Q300,200 600,400 T1200,400 L1200,800 L0,800 Z" fill="rgba(255,255,255,0.05)"/></svg>') no-repeat center;
    background-size: cover;
}

.hero-content {
    max-width: 700px;
    position: relative;
    z-index: 1;
}

.hero h1 {
    color: white;
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

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

/* Services Section */
.services {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-subtitle {
    color: var(--secondary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: white;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px var(--shadow);
    transition: all 0.3s;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px var(--shadow);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--light-blue));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    color: var(--dark-blue);
    margin-bottom: 10px;
}

.service-card .subtitle {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

/* Features Section */
.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--secondary-color);
}

/* Stats Section */
.stats {
    background: var(--primary-color);
    color: white;
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    color: white;
    font-size: 3rem;
    margin-bottom: 10px;
}

.stat-item p {
    color: rgba(255,255,255,0.9);
    font-size: 1.1rem;
}

/* Blog Section */
.blog {
    padding: 80px 0;
    background: var(--bg-light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.blog-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px var(--shadow);
    transition: transform 0.3s;
}

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

.blog-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.blog-content {
    padding: 25px;
}

.blog-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.blog-card h3 {
    margin-bottom: 10px;
}

.blog-card p {
    margin-bottom: 20px;
}

.read-more {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

/* Contact Section */
.contact {
    padding: 80px 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    gap: 20px;
    align-items: start;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--secondary-color);
    font-size: 1.3rem;
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
footer {
    background: var(--dark-blue);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
}

.footer-section p,
.footer-section li {
    color: rgba(255,255,255,0.8);
}

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

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

.footer-section a {
    color: rgba(255,255,255,0.8);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255,255,255,0.6);
}

/* Responsive Design */
@media (max-width: 968px) {
    .header-main {
        flex-wrap: wrap;
    }
    
    nav {
        display: none;
        width: 100%;
        margin-top: 20px;
    }
    
    nav.active {
        display: block;
    }
    
    nav ul {
        flex-direction: column;
        gap: 15px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .services-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    
    .top-bar .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .services,
    .features,
    .blog,
    .contact {
        padding: 50px 0;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.d-flex { display: flex; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }
.gap-1 { gap: 1rem; }