:root {
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --accent-color: #8BC34A;
    --bg-dark: #080808;
    --surface-dark: #121212;
    --text-primary: #ffffff;
    --text-secondary: #a1a1a6;
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.1);
    --primary-glow: rgba(76, 175, 80, 0.3);
    --shadow: 0 24px 48px rgba(0, 0, 0, 0.5);

    /* Responsive Tokens */
    --container-width: 1100px;
    --gutter: clamp(1rem, 5vw, 2rem);
    --section-spacing: clamp(3rem, 10vw, 6rem);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-dark);
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Ffilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* Header & Navigation */
header {
    background: rgba(8, 8, 8, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: clamp(1.2rem, 4vw, 1.5rem);
}

.logo img {
    height: 32px;
    border-radius: 6px;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
}

.nav-toggle-label {
    display: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after {
    display: block;
    background: var(--text-primary);
    height: 2px;
    width: 24px;
    border-radius: 2px;
    position: relative;
    transition: all 0.3s ease;
}

.nav-toggle-label span::before,
.nav-toggle-label span::after {
    content: '';
    position: absolute;
}

.nav-toggle-label span::before {
    bottom: 8px;
}

.nav-toggle-label span::after {
    top: 8px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: var(--section-spacing) 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2.2rem, 8vw, 4rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    max-width: 900px;
    background: linear-gradient(135deg, #FFF 0%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: clamp(1rem, 3vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
}

.hero-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    max-width: 900px;
    background-size: cover;
    background-position: center;
    border-radius: clamp(16px, 4vw, 32px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
}

/* Content Sections */
.content-section {
    padding: var(--section-spacing) 0;
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: clamp(1.5rem, 5vw, 3rem);
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 0 30px var(--primary-glow);
    background: rgba(255, 255, 255, 0.06);
}

.card h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.card h3 {
    font-size: clamp(1.2rem, 3vw, 1.5rem);
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-card {
    padding: 2.5rem;
    margin-bottom: 0;
    height: 100%;
}

.feature-card .icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-top: 0;
}

/* Highlights Card */
.highlights-card {
    margin-top: 4rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.08) 0%, rgba(139, 195, 74, 0.04) 100%);
    border-color: rgba(76, 175, 80, 0.3);
}

/* Footer */
footer {
    padding: 6rem 0 3rem;
    background: var(--surface-dark);
    margin-top: 6rem;
    border-top: 1px solid var(--glass-border);
}

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

.footer-col h4 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary-color);
}

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

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-secondary);
    transition: color 0.3s;
    font-size: 0.95rem;
}

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

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Responsive Overrides */
@media (max-width: 850px) {
    .nav-toggle-label {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        background: rgba(18, 18, 18, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 6rem 2rem;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.7, 0, 0.3, 1);
        z-index: 1000;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .nav-toggle:checked~.nav-links {
        transform: translateX(0);
    }

    .nav-toggle:checked~.nav-toggle-label span {
        background: transparent;
    }

    .nav-toggle:checked~.nav-toggle-label span::before {
        transform: rotate(45deg);
        bottom: 0;
    }

    .nav-toggle:checked~.nav-toggle-label span::after {
        transform: rotate(-45deg);
        top: 0;
    }

    .hero {
        padding: 4rem 0;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .logo span {
        display: none;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}