:root {
    --bg: #000000;
    --card-bg: #111111;
    --accent: #007AFF;
    --accent-android: #3DDC84;
    --accent-gradient: linear-gradient(135deg, #007AFF 0%, #3DDC84 100%);
    --text-primary: #FFFFFF;
    --text-secondary: #8E8E93;
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --nav-bg: rgba(0, 0, 0, 0.7);
    --success: #34C759;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Nav */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 72px;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    text-decoration: none;
    color: #fff;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent);
    margin-left: -2px;
}

.nav-logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-links a:hover {
    color: #fff;
}

.nav-cta {
    background: var(--accent);
    color: #fff !important;
    padding: 8px 20px;
    border-radius: 20px;
}

/* Hero */
.hero {
    padding: 160px 0 100px;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 2rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

h1 {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 1.5rem;
}

.text-gradient {
    background: linear-gradient(to bottom, #fff, #999);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-connection {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 3rem;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 100px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.3s, filter 0.3s;
    cursor: pointer;
    border: none;
}

.btn:active {
    transform: scale(0.96);
}

.primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 10px 20px rgba(0, 122, 255, 0.2);
}

.secondary {
    background: var(--glass);
    color: #fff;
    border: 1px solid var(--glass-border);
    margin-left: 1rem;
}

/* Grid Sections */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2.5rem;
    padding: 4rem 0;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 3.5rem;
    border-radius: 40px;
    transition: border-color 0.3s, transform 0.3s, background 0.3s;
    text-align: center;
}

.feature-card:hover {
    border-color: var(--accent);
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.01);
}

.feature-card .icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    background: var(--glass);
}

.feature-card .icon-wrapper svg {
    width: 48px;
    height: 48px;
    fill: var(--accent);
}

.feature-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Detailed Showcase */
.showcase {
    padding: 100px 0;
}

.showcase-row {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-bottom: 8rem;
}

.showcase-row:nth-child(even) {
    flex-direction: row-reverse;
}

.showcase-content {
    flex: 1;
}

.showcase-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.showcase-image {
    flex: 1;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    height: 400px;
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.showcase-image::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    background: var(--accent);
    filter: blur(100px);
    opacity: 0.2;
}

/* Installation Steps */
.step-list {
    list-style: none;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    text-align: left;
}

.step-list li strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.2rem;
}

/* Pricing */
.pricing-grid {
    display: flex;
    gap: 2rem;
    padding: 4rem 0;
}

.price-card {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 3rem;
    border-radius: 32px;
    text-align: center;
}

.price-card.featured {
    border-color: var(--accent);
    background: linear-gradient(180deg, rgba(0, 122, 255, 0.05) 0%, rgba(0, 0, 0, 0) 100%);
}

.price {
    font-size: 4rem;
    font-weight: 800;
    margin: 2rem 0;
}

.price span {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.features-list {
    list-style: none;
    text-align: left;
    margin-bottom: 3rem;
}

.features-list li {
    padding: 12px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--glass-border);
}

.features-list li::before {
    content: '✓';
    color: var(--accent);
    margin-right: 12px;
    font-weight: bold;
}

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

.footer-links {
    margin: 2rem 0;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 1rem;
    font-size: 0.9rem;
}

/* Utils */
.accent-text {
    color: var(--accent);
}

@media (max-width: 768px) {
    h1 {
        font-size: 3rem;
    }

    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .showcase-row,
    .showcase-row:nth-child(even) {
        flex-direction: column;
        text-align: center;
    }

    .pricing-grid {
        flex-direction: column;
    }
}