/* --- Corporate Design Variables --- */
:root {
    --primary-blue: #0284c7; /* Trustworthy Corporate Blue */
    --primary-blue-hover: #0369a1;
    --primary-blue-light: #e0f2fe;
    
    --text-dark: #0f172a; /* Slate 900 */
    --text-body: #334155; /* Slate 700 */
    --text-muted: #64748b; /* Slate 500 */
    
    --bg-white: #ffffff;
    --bg-light: #f8fafc; /* Slate 50 */
    --bg-gray: #f1f5f9; /* Slate 100 */
    
    --border-light: #e2e8f0; /* Slate 200 */
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* --- Global Reset & Typography --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-white);
    color: var(--text-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    color: var(--text-dark);
    line-height: 1.2;
    font-weight: 700;
}

p {
    margin-bottom: 1rem;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Utility Classes --- */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.text-center { text-align: center; }
.text-blue { color: var(--primary-blue); }

.section-padding {
    padding: 6rem 0;
}

.bg-light { background-color: var(--bg-light); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem; /* Standard rounded corners */
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    font-size: 1rem;
    border: none;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: #ffffff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--primary-blue-hover);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
}

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* --- Navbar --- */
.navbar {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-light);
    z-index: 100;
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-dark);
    text-decoration: none;
}

.logo i {
    color: var(--primary-blue);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a.nav-item {
    color: var(--text-body);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-links a.nav-item:hover {
    color: var(--primary-blue);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-dark);
    cursor: pointer;
}

/* --- Hero Section --- */
.hero {
    padding: 6rem 0 4rem;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 1.5rem;
}

.hero-content p.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: var(--primary-blue-light);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    position: relative;
}

/* We create a CSS abstract graphic to represent logistics instead of an AI image */
.abstract-dashboard {
    width: 80%;
    height: 80%;
    background: white;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.dashboard-header {
    height: 20px;
    width: 30%;
    background: var(--border-light);
    border-radius: 4px;
    margin-bottom: 1rem;
}

.dashboard-row {
    display: flex;
    gap: 1rem;
    flex: 1;
}

.dashboard-col {
    flex: 1;
    background: var(--bg-light);
    border-radius: 4px;
    border: 1px solid var(--border-light);
}
.dashboard-col.main {
    flex: 2;
    background: var(--primary-blue-light);
}

/* --- Logos Section --- */
.logos-section {
    padding: 3rem 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    background-color: var(--bg-white);
}

.logos-section p {
    text-align: center;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2rem;
}

.logo-grid {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
    opacity: 0.6;
    filter: grayscale(100%);
}

.logo-placeholder {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-dark);
}

/* --- Features Overview --- */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-muted);
}

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

.feature-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background-color: var(--primary-blue-light);
    color: var(--primary-blue);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-muted);
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* --- Split Feature Sections (Long Page Content) --- */
.split-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.split-feature:last-child {
    margin-bottom: 0;
}

.split-feature.reverse .feature-text {
    order: 2;
}

.split-feature.reverse .feature-image {
    order: 1;
}

.feature-text h3 {
    font-size: 2rem;
    margin-bottom: 1.25rem;
}

.feature-text p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    margin-top: 1.5rem;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-body);
}

.feature-list i {
    color: var(--primary-blue);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.feature-image {
    background-color: var(--bg-gray);
    border-radius: 1rem;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-light);
}

/* --- CTA Section --- */
.cta-section {
    background-color: var(--primary-blue);
    color: white;
    text-align: center;
    padding: 5rem 0;
}

.cta-section h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    color: var(--primary-blue-light);
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .btn-primary {
    background-color: white;
    color: var(--primary-blue);
}

.cta-section .btn-primary:hover {
    background-color: var(--bg-light);
}

/* --- Footer --- */
.footer {
    background-color: var(--bg-white);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-muted);
    margin-top: 1rem;
    font-size: 0.875rem;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--primary-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    .hero .container, .split-feature {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .split-feature.reverse .feature-text {
        order: 1;
    }
    
    .split-feature.reverse .feature-image {
        order: 2;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links.desktop-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 4rem 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}