:root {
    --primary-color: #0F172A; /* Slate 900 */
    --accent-color: #3B82F6; /* Blue 500 */
    --accent-glow: #60A5FA;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --bg-color: #020617; /* Darker Slate */
    --card-bg: #1e293b;
    --nav-height: 80px;
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --max-width: 1200px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    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;
    color: #fff;
}

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

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-glow));
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.btn-outline {
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

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

.section-padding {
    padding: 100px 0;
}

.text-center { text-align: center; }
.mb-4 { margin-bottom: 2rem; }
.text-muted { color: var(--text-muted); }

/* Navigation */
.navbar {
    height: var(--nav-height);
    background: rgba(2, 6, 23, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.navbar .container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
    background: 
        radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 20%);
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff 20%, var(--accent-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

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

.service-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.service-icon {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

/* Footer */
footer {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 60px 0;
    background: #020617;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

/* Case Studies Grid */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease;
    border: 1px solid rgba(255,255,255,0.05);
}

.case-card:hover {
    transform: translateY(-5px);
}

.case-image {
    height: 250px;
    background-color: #334155;
    background-size: cover;
    background-position: center;
    position: relative;
}

.case-content {
    padding: 30px;
}

.case-tag {
    font-size: 0.8rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: block;
}

.case-stat {
    margin-top: 15px;
    display: flex;
    gap: 20px;
}

.stat-item h4 {
    font-size: 1.5rem;
    color: white;
}
.stat-item p {
    font-size: 0.8rem;
    color: var(--text-muted);
}