:root {
    --bg-dark: #0a0a12;
    --bg-card: rgba(255, 255, 255, 0.05);
    --primary: #00f3ff;
    --secondary: #bd00ff;
    --text-main: #ffffff;
    --text-muted: #b3b3b3;
    --border: rgba(255, 255, 255, 0.1);
    --glass: blur(10px);
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* Header */
.header {
    background: rgba(10, 10, 18, 0.8);
    backdrop-filter: var(--glass);
    position: fixed;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-list a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    position: relative;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: 0.3s;
}

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at center, #1a1a2e 0%, #0a0a12 100%);
}

.hero::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 243, 255, 0.1) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-glow {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
}

.btn-glow:hover {
    background: var(--primary);
    color: var(--bg-dark);
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.6);
}

/* Section General */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

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

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    padding: 2.5rem;
    border-radius: 20px;
    transition: transform 0.3s, border-color 0.3s;
}

.glass-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 243, 255, 0.1);
}

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

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

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

/* Footer */
.footer {
    background: #050508;
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}

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

.footer h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer ul li {
    margin-bottom: 0.8rem;
}

.footer ul li a {
    color: var(--text-muted);
}

.footer ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

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

/* Contact Form */
.form-group {
    margin-bottom: 1.5rem;
}

.form-input {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--white);
    font-family: inherit;
    transition: 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

/* Responsive */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 18, 0.95);
        backdrop-filter: blur(20px);
        transition: 0.3s;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        text-align: center;
    }

    .mobile-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
}