:root {
    --bg-dark: #050505;
    --bg-card: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary: #00f2ff;
    --secondary: #bd00ff;
    --text-main: #ffffff;
    --text-muted: #888888;
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    overflow-x: hidden;
    min-height: 100vh;
}

/* --- 3D Grid Background --- */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image:
        linear-gradient(rgba(0, 242, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 242, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    perspective: 500px;
    transform-style: preserve-3d;
    opacity: 0.2;
    mask-image: radial-gradient(circle at center, black 0%, transparent 80%);
}

.cyber-glow {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(189, 0, 255, 0.15) 0%, transparent 70%);
    filter: blur(100px);
    z-index: -2;
    animation: pulse 10s infinite alternate;
}

@keyframes pulse {
    0% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }

    100% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

/* --- Typography --- */
h1,
h2,
h3 {
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 4.5rem;
    background: linear-gradient(to right, #fff, #888);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 3rem;
    margin-bottom: 2rem;
}

p {
    line-height: 1.6;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* --- Glassmorphism --- */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

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

nav.scrolled {
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(20px);
    padding: 1rem 5%;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

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

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 600;
    position: relative;
    opacity: 0.7;
    transition: var(--transition);
}

.nav-links a:hover {
    opacity: 1;
    color: var(--primary);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 5%;
    position: relative;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.btn-primary {
    display: inline-block;
    margin-top: 2rem;
    padding: 1rem 2.5rem;
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    background: var(--primary);
    color: #000;
    box-shadow: 0 0 30px rgba(0, 242, 255, 0.5);
}

/* --- Services 3D Cards --- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 5rem 5%;
}

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

.service-card {
    padding: 3rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 10px 40px -10px rgba(0, 242, 255, 0.15);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

/* --- Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Staggered delays for child elements if needed */
.reveal-delay-1 {
    transition-delay: 0.1s;
}

.reveal-delay-2 {
    transition-delay: 0.2s;
}

.reveal-delay-3 {
    transition-delay: 0.3s;
}

/* --- Footer --- */
footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 5%;
    text-align: center;
    color: var(--text-muted);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}