/* 
   Dev Orbit Lab - Premium CSS Design System
   Color Palette: Dark Slate (#0a0b10), Electric Blue (#007bff), Cyan Accent
*/

:root {
    --bg-color: #0d0f14;
    --card-bg: #161a23;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-blue: #007bff;
    --accent-cyan: #00f2fe;
    --accent-glow: rgba(0, 123, 255, 0.4);
    --glass-bg: rgba(22, 26, 35, 0.7);
    --border-color: rgba(255, 255, 255, 0.1);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

nav.sticky {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 1rem 5%;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

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

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

.cta-btn {
    padding: 0.75rem 1.5rem;
    background: var(--accent-blue);
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-smooth);
    border: none;
    cursor: pointer;
}

.cta-btn:hover {
    background: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px var(--accent-glow);
}

/* Sections */
section {
    padding: 8rem 5%;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: radial-gradient(circle at 80% 20%, rgba(0, 123, 255, 0.15), transparent);
}

.hero-content {
    max-width: 600px;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-image {
    width: 45%;
    height: 500px;
    background-image: url('images/hero.jpg');
    background-size: cover;
    background-position: center;
    border-radius: 20px;
    box-shadow: 20px 20px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.hero-image::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, var(--bg-color), transparent);
}

/* Grid Layouts */
.services-grid, .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-10px);
}

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

/* Contact Form */
.form-container {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    max-width: 800px;
    margin: 3rem auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: white;
    outline: none;
    transition: var(--transition-smooth);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.1);
}

.checkbox-group {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-top: 1rem;
}

.checkbox-group input {
    width: auto;
    margin-top: 0.4rem;
}

/* Footer */
footer {
    padding: 5rem 5% 2rem;
    background: #050608;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
}

.footer-links h4 {
    margin-bottom: 1.5rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero { flex-direction: column; text-align: center; height: auto; padding-top: 120px; }
    .hero-content { max-width: 100%; margin-bottom: 3rem; }
    .hero-image { width: 100%; height: 300px; }
    .hero-image::after { background: linear-gradient(to top, var(--bg-color), transparent); }
    section { padding: 4rem 5%; }
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}