:root {
    --bg-color: #0b1021;
    --card-bg: #151e36;
    --text-primary: #e6e8ec;
    --text-secondary: #94a3b8;
    --accent: #38bdf8; /* Light Blue */
    --accent-dark: #0284c7;
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    background: rgba(11, 16, 33, 0.9);
    backdrop-filter: blur(10px);
}

nav.container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--accent);
    letter-spacing: 1px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

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

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--accent);
    text-align: center;
}

/* Hero */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
}

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

.subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background: var(--accent-dark);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: var(--transition);
}

.cta-button:hover {
    background: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(56, 189, 248, 0.3);
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.service-card h3 {
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

/* Content Block (About) */
.content-block {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.content-block p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--accent);
}

.details {
    margin-top: 40px;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 10px;
}

.details p {
    margin-bottom: 15px;
}

.details a {
    color: var(--accent);
    text-decoration: none;
}

.small-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
}

.contact-form {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 10px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background: var(--bg-color);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 5px;
    color: white;
    font-family: var(--font-main);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.submit-button {
    width: 100%;
    padding: 12px;
    background: var(--accent-dark);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.submit-button:hover {
    background: var(--accent);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255,255,255,0.05);
    margin-top: 40px;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.8s forwards;
}

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

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    /* Gradient or simple effect if JS fails */
    background: radial-gradient(circle at 50% 50%, #1a2236 0%, #0b1021 100%);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none; /* Simplification for this exercise, real site needs burger menu */
    }
}