/* Design System & Variables */
:root {
    --primary: #1E3A8A; /* Deep Blue representing corporate infrastructure */
    --primary-light: #3B82F6;
    --primary-dark: #1e293b;
    --accent: #F59E0B; /* Amber/Orange representing construction */
    --accent-glow: rgba(245, 158, 11, 0.4);
    
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #cbd5e1;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Glassmorphism */
    --glass-bg: rgba(15, 23, 42, 0.65);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-darker);
    color: var(--text-main);
    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: color 0.3s ease;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 var(--accent-glow); }
    70% { box-shadow: 0 0 0 15px rgba(245, 158, 11, 0); }
    100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    padding: 1rem 0;
}

.glassmorphism {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo-img {
    height: 50px;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.logo-img:hover {
    transform: scale(1.05);
}

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

.nav-links a {
    font-weight: 500;
    font-size: 1rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #d97706);
    color: #fff !important;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary::after {
    display: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
    animation: pulse 2s infinite;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-main);
    transition: all 0.3s;
}

/* Page Content Formatting */
.content {
    min-height: 80vh;
}

/* Header Sections that acts as page titles */
.page-header {
    padding: 150px 2rem 50px;
    text-align: center;
    background: linear-gradient(to bottom, var(--bg-dark), var(--bg-darker));
    border-bottom: 1px solid var(--glass-border);
}

.page-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeIn 0.8s ease-out;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
    animation: fadeIn 1s ease-out;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Card System for Data Display */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 15px 40px rgba(0,0,0,0.4), 0 0 15px var(--accent-glow);
}

.glass-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

/* Footer */
.footer {
    background: var(--bg-dark);
    padding: 4rem 2rem 2rem;
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-logo {
    height: 60px;
    margin-bottom: 1rem;
}

.footer-col h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background: var(--accent);
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 0.8rem;
}

.footer-col a:hover {
    color: var(--accent);
    padding-left: 5px;
}

.footer-col p {
    color: var(--text-muted);
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: var(--bg-dark);
        padding: 2rem;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }

    .page-header h1 {
        font-size: 2.5rem;
    }
}