/* Core Variables */
:root {
    --bg-dark: #050510;
    --bg-darker: #020205;
    --primary: #00f0ff; /* Cyan Neon */
    --secondary: #7000ff; /* Purple Neon */
    --text-main: #ffffff;
    --text-muted: #8892b0;
    --glass-bg: rgba(10, 15, 30, 0.65);
    --glass-border: rgba(0, 240, 255, 0.2);
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* Background Effects */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: 
        radial-gradient(circle at 15% 50%, rgba(112, 0, 255, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(0, 240, 255, 0.08) 0%, transparent 25%);
    z-index: -1;
    pointer-events: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #fff;
    text-shadow: 0 0 8px var(--primary);
    text-decoration: none;
}

/* Navbar */
.navbar {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 0;
    padding: 15px 0;
}

.navbar-brand .logo {
    font-size: 24px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: linear-gradient(90deg, #fff, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-nav > li > a {
    color: var(--text-muted) !important;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 10px 20px;
}

.navbar-nav > li > a:hover, .navbar-nav > li > a:focus {
    color: var(--primary) !important;
    background: transparent !important;
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

/* Buttons */
.btn-sci-fi {
    display: inline-block;
    padding: 12px 30px;
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    z-index: 1;
}

.btn-sci-fi::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary);
    z-index: -1;
    transition: all 0.3s ease;
}

.btn-sci-fi:hover {
    color: #000;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

.btn-sci-fi:hover::before {
    left: 0;
}

.btn-secondary-sci {
    border-color: var(--secondary);
    color: var(--secondary);
}

.btn-secondary-sci::before {
    background: var(--secondary);
}

.btn-secondary-sci:hover {
    box-shadow: 0 0 20px rgba(112, 0, 255, 0.4);
    color: #fff;
}

/* Hero Section */
.hero-section {
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-title {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, #b0b0b0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-visual {
    position: relative;
    height: 400px;
    perspective: 1000px;
}

.holo-card {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05), rgba(255,255,255,0.01));
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(5px);
    border-radius: 20px;
    transform: rotateY(-10deg) rotateX(5deg);
    box-shadow: -20px 20px 60px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.holo-content {
    text-align: center;
}

.holo-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    margin: 0 auto 20px;
    position: relative;
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
    animation: pulse 3s infinite;
}

.holo-circle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    border: 2px dashed var(--secondary);
    border-radius: 50%;
    animation: rotate 10s linear infinite;
}

/* Features Section */
.features-section {
    padding: 80px 0;
}

.section-header {
    margin-bottom: 60px;
    text-align: center;
}

.section-title {
    font-size: 32px;
    margin-bottom: 15px;
}

.section-line {
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 0 auto;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--primary);
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 12px;
    transition: all 0.4s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: linear-gradient(180deg, rgba(0, 240, 255, 0.05) 0%, rgba(25, 25, 40, 0.0) 100%);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 25px;
}

.feature-title {
    font-size: 20px;
    margin-bottom: 15px;
    color: #fff;
}

.feature-desc {
    color: var(--text-muted);
    font-size: 14px;
}

/* Footer */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 60px 0 30px;
    font-size: 14px;
    color: var(--text-muted);
}

.footer-title {
    color: #fff;
    font-size: 16px;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-links li {
    list-style: none;
    margin-bottom: 10px;
}

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

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

.footer-bottom {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
    text-align: center;
}

/* Animations */
@keyframes rotate {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0.4); }
    70% { box-shadow: 0 0 0 20px rgba(0, 240, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}