:root {
    /* Primary Brand Colors */
    --primary: #FF8C00; /* Construction Orange */
    --primary-dark: #E67E00;
    --secondary: #D4AF37; /* Premium Gold */
    --accent: #007BFF;
    
    /* Neutrals */
    --dark: #121212;
    --dark-surface: #1E1E1E;
    --light: #F8F9FA;
    --white: #FFFFFF;
    --gray: #6C757D;
    --gray-light: #E9ECEF;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-blur: blur(10px);

    /* Typography */
    --font-main: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-heading: 'Raleway', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 5%;
    --container-width: 1200px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--white);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

@media (max-width: 768px) {
    .section {
        padding: 60px 5%;
    }
}

.flex-grid {
    display: flex;
    gap: 30px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* Responsive Grid Overrides */
@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .flex-grid {
        flex-direction: column;
    }
    .stack-mobile {
        display: flex;
        flex-direction: column !important;
        gap: 30px !important;
    }
    .hide-mobile {
        display: none !important;
    }
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: 0.4s;
}

header nav {
    padding: 10px 0;
}

header.scrolled nav {
    padding: 5px 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
}

.top-bar {
    background: var(--dark);
    color: var(--white);
    padding: 10px 0;
    font-size: 0.85rem;
    font-weight: 600;
}

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

.header-cta a {
    white-space: nowrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
}

.logo span {
    color: var(--primary);
    margin-left: 8px;
}

.logo img {
    height: 60px;
    width: auto;
    transition: 0.3s;
}

header.scrolled .logo img {
    height: 45px;
}

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

.nav-links {
    display: flex;
    gap: 25px;
    align-items: center; /* Center links vertically */
}

/* Mobile Menu Button */
.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

@media (max-width: 992px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 100px 40px;
        transition: 0.4s;
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        z-index: 999;
    }
    .nav-links.active {
        right: 0;
    }
    .mobile-toggle {
        display: block;
        z-index: 1000;
    }
    .header-cta {
        display: none;
    }
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: 20px;
        display: none;
    }
    .dropdown.active .dropdown-menu {
        display: block;
    }
}

.nav-links li {
    position: relative;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
}

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

/* Dropdowns */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: var(--shadow-lg);
    border-radius: 8px;
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: 0.3s;
    padding: 15px 0;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    padding: 10px 20px;
    display: block;
}

.dropdown-menu li a:hover {
    background: var(--gray-light);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, rgba(18,18,18,0.9), rgba(18,18,18,0.7)), url('img/homepage.jpg') center/cover;
    display: flex;
    align-items: center;
    color: var(--white);
    padding-top: 80px;
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.btn {
    display: inline-block;
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: 0.3s;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(255, 140, 0, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 140, 0, 0.4);
}

/* Service Cards */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: 0.4s;
    border-bottom: 4px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-bottom: 4px solid var(--primary);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .top-bar .container {
        flex-direction: column;
        text-align: center;
        gap: 5px;
    }
    .hero h1 {
        font-size: 2.8rem;
    }
    .hero p {
        font-size: 1.1rem;
    }
    .container {
        padding: 0 25px;
    }
    .logo {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.2rem;
    }
}