:root {
    --primary: #0A192F;
    /* Deep Navy Blue */
    --primary-light: #112240;
    /* Lighter Navy */
    --secondary: #8A95A5;
    /* Steel Grey */
    --accent: #FF4500;
    /* Safety Orange/Red */
    --accent-hover: #E63E00;
    --text-dark: #2D3748;
    --text-light: #F8F9FA;
    --bg-light: #FFFFFF;
    --bg-alt: #F1F4F8;
    --border: #E2E8F0;

    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.15);

    --radius: 4px;
    /* Industrial sharp edges rather than overly rounded */
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
    overflow-x: hidden;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary);
}

p {
    margin-bottom: 1.5rem;
    color: var(--secondary);
    font-weight: 400;
}

.lead {
    font-size: 1.15rem;
    color: var(--text-dark);
    font-weight: 600;
}

.highlight-text {
    border-left: 4px solid var(--accent);
    padding-left: 1rem;
    font-weight: 600;
    color: var(--primary);
    background: var(--bg-alt);
    padding: 1rem;
}

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

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.row {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
}

.col-6 {
    flex: 1 1 calc(50% - 1.5rem);
    min-width: 300px;
}

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

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

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

.text-light {
    color: var(--text-light) !important;
}

.text-light-muted {
    color: var(--secondary) !important;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border-color: var(--text-light);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-download {
    background-color: var(--primary);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.9rem;
    padding: 0.6rem 1.2rem;
}

.btn-download:hover {
    background-color: var(--primary-light);
    border-color: var(--accent);
}

/* Tags & Badges */
.section-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: var(--bg-alt);
    color: var(--secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    border-radius: 20px;
}

.badge-light {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

.badge-accent {
    background-color: rgba(255, 69, 0, 0.1);
    color: var(--accent);
}

.tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background-color: var(--bg-alt);
    font-size: 0.8rem;
    font-weight: 600;
    margin-right: 0.5rem;
    color: var(--primary);
    border-radius: var(--radius);
}

/* Navigation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.site-header.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
    background-color: rgba(10, 25, 47, 0.98);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo h1 {
    color: var(--text-light);
    margin: 0;
    font-size: 2rem;
    letter-spacing: 2px;
}

.logo .accent {
    color: var(--accent);
}

.logo p {
    color: var(--secondary);
    font-size: 0.8rem;
    margin: 0;
    font-weight: 600;
    letter-spacing: 1px;
}

.main-nav ul {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.main-nav a:not(.btn):hover {
    color: var(--accent);
}

.mobile-menu-toggle {
    display: none;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    padding-top: 100px;
    background-image: url('assets/hero.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(10, 25, 47, 0.9) 0%, rgba(10, 25, 47, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
}

.hero-content {
    text-align: left;
}

.hero-content h2 {
    color: var(--text-light);
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    text-align: left;
}

.hero-content p {
    color: #cbd5e1;
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

/* About Section */
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-content: center;
}

.stat-box {
    background: var(--bg-alt);
    padding: 2rem;
    border-radius: var(--radius);
    text-align: center;
    border-bottom: 4px solid var(--accent);
    transition: var(--transition);
}

.stat-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Services Grid */
.services-section .section-header {
    margin-bottom: 4rem;
}

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

.service-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem 2rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.service-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.service-icon {
    margin-bottom: 1.5rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--accent);
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.service-card h3 {
    color: var(--text-light);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--secondary);
    margin: 0;
    font-size: 0.95rem;
}

/* Fleet Grid */
.fleet-section {
    background: var(--bg-alt);
}

.fleet-section .section-header {
    margin-bottom: 4rem;
    text-align: center;
}

.fleet-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
    gap: 2rem;
}

.fleet-card {
    background: var(--bg-light);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.fleet-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.fleet-card.card-large {
    grid-column: span 3;
    flex-direction: row;
}

.fleet-card.card-large img {
    width: 50%;
    object-fit: cover;
}

.fleet-info {
    padding: 2.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.fleet-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.fleet-card p {
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

/* QHSE Section */
.qhse-image-wrap {
    position: relative;
}

.qhse-image-wrap img {
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.safety-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--accent);
    color: var(--text-light);
    padding: 2rem;
    font-weight: 800;
    font-size: 1.2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.check-list {
    list-style: none;
    margin-top: 2rem;
}

.check-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--primary);
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: var(--accent);
    color: var(--text-light);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.8rem;
}

/* Footer Section */
.site-footer {
    background-color: var(--primary);
    color: var(--text-light);
    padding: 5rem 0 2rem;
    border-top: 5px solid var(--accent);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 3rem;
}

.footer-brand {
    flex: 0 0 300px;
}

.footer-brand h2 {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.rc-number {
    color: var(--accent);
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.tagline {
    color: var(--secondary);
}

.footer-offices {
    flex: 1;
}

.footer-offices h3 {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.5rem;
}

.office-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.office h4 {
    color: var(--accent);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.office p {
    color: var(--secondary);
    font-size: 0.9rem;
    margin: 0;
}

.footer-contact {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem 0;
    margin-bottom: 2rem;
    justify-content: space-between;
}

.contact-item {
    font-size: 1.1rem;
}

.contact-item strong {
    color: var(--accent);
    margin-right: 0.5rem;
}

.footer-bottom {
    text-align: center;
    color: var(--secondary);
    font-size: 0.9rem;
}

/* Sticky WhatsApp CTA */
.whatsapp-cta {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: white;
    padding: 12px 20px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-cta:hover {
    transform: scale(1.05) translateY(-5px);
    background-color: #1EBE5D;
}

.whatsapp-text {
    font-size: 1rem;
}

/* Animations */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-up.in-view {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.2s;
}

.delay-2 {
    transition-delay: 0.4s;
}

.delay-3 {
    transition-delay: 0.6s;
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .fleet-card.card-large {
        flex-direction: column;
        grid-column: span 1;
    }

    .fleet-card.card-large img {
        width: 100%;
        height: 300px;
    }

    .fleet-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .row {
        flex-direction: column;
    }

    .col-6 {
        width: 100%;
    }

    .hero-content h2 {
        font-size: 3rem;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--primary);
        padding: 2rem;
        box-shadow: var(--shadow-lg);
    }

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

    .main-nav ul {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
    }

    .mobile-menu-toggle span {
        width: 25px;
        height: 3px;
        background: var(--text-light);
    }

    .safety-badge {
        bottom: 10px;
        right: 10px;
        padding: 1rem;
    }
}