:root {
    --primary-color: #0d1b2a; /* Deep industrial dark blue */
    --secondary-color: #1b263b; /* Lighter blue */
    --accent-color: #f77f00; /* Safety orange/gold */
    --accent-hover: #d66c00;
    --text-color: #e0e1dd; /* Off-white for readability */
    --text-dark: #333; /* Dark text for light sections if needed */
    --bg-dark: #0a1118;
    --card-bg: rgba(27, 38, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-dark);
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

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

.divider {
    height: 3px;
    width: 60px;
    background: var(--accent-color);
    margin-bottom: 2rem;
}

.divider.center {
    margin: 0 auto 2rem auto;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(13, 27, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 2px;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links li a {
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition);
}

.nav-links li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-color);
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: url('assets/hero_bg.jpg') no-repeat center center/cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(10, 17, 24, 0.9) 0%, rgba(10, 17, 24, 0.5) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 5%;
}

.hero h1 {
    font-size: 4rem;
    color: #fff;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    color: #cbd5e1;
    max-width: 600px;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--accent-color);
    color: #fff;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: var(--transition);
    border: 2px solid var(--accent-color);
}

.btn:hover {
    background-color: transparent;
    color: var(--accent-color);
}

/* About Section */
.about {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-color) 100%);
}

.about p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: #cbd5e1;
}

.commitment-banner {
    margin-top: 3rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.commitment-banner h3 {
    margin-bottom: 1.5rem;
    color: #fff;
}

.core-values {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.core-values span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--accent-color);
    font-size: 1.1rem;
}

/* Services */
.services {
    padding: 6rem 0;
    background-color: var(--bg-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    background: rgba(27, 38, 59, 0.9);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card .icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.service-card p {
    color: #94a3b8;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.service-list {
    margin-top: 1.5rem;
}

.service-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    color: #cbd5e1;
}

.service-list li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--accent-color);
    font-size: 0.9rem;
}

/* Industries */
.industries {
    padding: 6rem 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" opacity="0.05"><rect width="100" height="100" fill="none"/><path d="M0 0l100 100M100 0L0 100" stroke="%23ffffff" stroke-width="1"/></svg>'), var(--primary-color);
}

.industry-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
}

.tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.tag:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #fff;
    transform: translateY(-3px);
}

/* Why Us */
.why-us {
    padding: 6rem 0;
    background-color: var(--bg-dark);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.why-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid transparent;
    transition: var(--transition);
}

.why-item:hover {
    border-color: var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
}

.why-icon {
    width: 70px;
    height: 70px;
    background: rgba(247, 127, 0, 0.1);
    color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem auto;
}

.why-item h4 {
    margin-bottom: 1rem;
    color: #fff;
}

.why-item p {
    color: #94a3b8;
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background-color: #050a0f;
    padding: 5rem 0 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

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

.footer-brand {
    max-width: 400px;
}

.footer-brand h3 {
    color: #fff;
    font-size: 1.8rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.footer-brand .mission {
    color: var(--accent-color);
    font-style: italic;
    margin-top: 1.5rem;
}

.footer-contact h4 {
    color: #fff;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-contact ul li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    color: #cbd5e1;
}

.footer-contact ul li i {
    color: var(--accent-color);
    margin-top: 4px;
}

.footer-contact a {
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #64748b;
    font-size: 0.9rem;
}

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

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* Responsive */
@media (max-width: 992px) {
    .hero h1 { font-size: 3rem; }
}

@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(13, 27, 42, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        gap: 1.5rem;
        clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.4s ease-in-out;
    }
    
    .nav-links.active {
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero h1 { font-size: 2.5rem; }
}