:root {
    --primary: #00e5ff;
    --primary-glow: rgba(0, 229, 255, 0.4);
    --secondary: #7000ff;
    --dark-bg: #05070a;
    --surface: #0f172a;
    --surface-light: #1e293b;
    --text-main: #f1f5f9;
    --text-dim: #94a3b8;
    --glass: rgba(15, 23, 42, 0.7);
    --border: rgba(255, 255, 255, 0.08);
    --accent-red: #ff4d4d;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

body {
    background-color: var(--dark-bg);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes scanline {
    0% {
        top: -100%;
    }

    100% {
        top: 100%;
    }
}

.fade-in {
    animation: fadeInUp 0.8s ease-out forwards;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Header */
header {
    height: 90px;
    display: flex;
    align-items: center;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--text-main);
    text-transform: uppercase;
}

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

.logo span::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

nav {
    display: flex;
    gap: 40px;
    margin: 0 auto;
}

nav a {
    color: var(--text-dim);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

nav a:hover {
    color: var(--primary);
}

nav a::before {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

nav a:hover::before {
    width: 100%;
}

.btn-login {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 12px 28px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    box-shadow: 0 0 0 transparent;
}

.btn-login:hover {
    background: var(--primary);
    color: var(--dark-bg);
    box-shadow: 0 0 20px var(--primary-glow);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding-top: 220px;
    padding-bottom: 150px;
    background: radial-gradient(circle at 80% 20%, #172554 0%, var(--dark-bg) 60%);
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://www.transparenttextures.com/patterns/carbon-fibre.png');
    opacity: 0.05;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 5rem;
    font-weight: 950;
    line-height: 1.05;
    margin-bottom: 30px;
    letter-spacing: -2px;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.4rem;
    color: var(--text-dim);
    max-width: 750px;
    margin: 0 auto 50px;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 25px;
}

.btn-main {
    background: var(--primary);
    color: var(--dark-bg);
    padding: 20px 45px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 800;
    transition: var(--transition);
    box-shadow: 0 10px 40px rgba(0, 229, 255, 0.3);
}

.btn-main:hover {
    transform: scale(1.05) translateY(-5px);
    box-shadow: 0 15px 50px rgba(0, 229, 255, 0.5);
}

.btn-ghost {
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
    padding: 20px 45px;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 800;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    border-color: var(--text-main);
    background: rgba(255, 255, 255, 0.08);
}

/* Visualization */
.hero-visual {
    margin-top: 100px;
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 50px 100px rgba(0, 0, 0, 0.8);
    animation: float 6s ease-in-out infinite;
}

.hero-visual img {
    width: 100%;
    display: block;
    filter: brightness(0.9) contrast(1.1);
}

.hero-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(0deg, var(--dark-bg) 0%, transparent 40%);
    z-index: 2;
}

.scan-line {
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--primary);
    box-shadow: 0 0 15px var(--primary);
    z-index: 3;
    animation: scanline 4s linear infinite;
    opacity: 0.3;
}

/* Sections */
section {
    padding: 150px 0;
}

.section-head {
    text-align: center;
    margin-bottom: 100px;
}

.section-head h2 {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.section-head p {
    font-size: 1.2rem;
    color: var(--text-dim);
}

/* Methodology Cards */
.methodology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 60px;
    border-radius: 30px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    border-color: var(--primary);
    transform: translateY(-15px);
    background: var(--surface-light);
}

.card i {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 30px;
    display: inline-block;
}

.card h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    font-weight: 800;
}

.card p {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.card ul {
    list-style: none;
}

.card li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.card li::before {
    content: '→';
    color: var(--primary);
    font-weight: 900;
}

/* Features Strips */
.features-alt {
    background: #080a0f;
}

.benefit-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
}

.benefit-box {
    text-align: left;
}

.benefit-box h4 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-main);
}

.benefit-box p {
    color: var(--text-dim);
}

/* CTA Section */
.final-cta {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    text-align: center;
    padding: 120px 40px;
    border-radius: 40px;
    margin-bottom: 100px;
    border: 1px solid var(--border);
}

.final-cta h2 {
    font-size: 3rem;
    margin-bottom: 30px;
}

/* Footer */
footer {
    padding: 100px 0 50px;
    border-top: 1px solid var(--border);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 60px;
}

.footer-info {
    max-width: 400px;
}

.footer-info .logo {
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    gap: 80px;
}

.link-col h5 {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: var(--text-main);
}

.link-col a {
    display: block;
    color: var(--text-dim);
    text-decoration: none;
    margin-bottom: 15px;
    transition: var(--transition);
}

.link-col a:hover {
    color: var(--primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 4rem;
    }
}

@media (max-width: 768px) {
    .header .container {
        justify-content: center;
    }

    nav,
    .btn-login {
        display: none;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .methodology-grid {
        grid-template-columns: 1fr;
    }

    .benefit-group {
        grid-template-columns: 1fr;
    }
}