:root {
    --bg-color: #050505;
    --text-color: #f5f5f7;
    --primary-color: #ffe600;
    --nav-bg: rgba(5, 5, 5, 0.75);
    --card-bg: #121212;
    --card-hover: #1c1c1c;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Navbar */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: background 0.4s ease, backdrop-filter 0.4s ease;
    padding: 25px 0;
}

nav.scrolled {
    background: var(--nav-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
}

.logo {
    font-size: 24px;
    font-weight: 900;
    letter-spacing: -1px;
    color: #fff;
    cursor: pointer;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 35px;
}

.nav-links li a {
    text-decoration: none;
    color: #b0b0b0;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 15px;
}

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

.btn-store {
    text-decoration: none;
    color: #000;
    background: #fff;
    padding: 10px 24px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 14px;
    transition: background 0.3s, transform 0.3s;
}

.btn-store:hover {
    background: var(--primary-color);
    transform: scale(1.05);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a0a0a, #151515);
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-text {
    color: rgba(255,255,255,0.3);
    font-size: 1.5rem;
    font-weight: 700;
    border: 2px dashed rgba(255,255,255,0.2);
    padding: 40px;
    border-radius: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(5,5,5,1) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    padding: 0 20px;
    margin-top: 80px;
}

.badge {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.hero-title {
    font-size: 5.5rem;
    font-weight: 900;
    margin-bottom: 10px;
    line-height: 1.1;
    background: linear-gradient(to right, #fff, #999);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: #ccc;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.btn {
    padding: 16px 40px;
    border-radius: 30px;
    font-weight: 700;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s;
}

.btn-primary {
    background: #fff;
    color: #000;
}

.btn-primary:hover {
    background: #e6e6e6;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(255,255,255,0.15);
}

.btn-secondary {
    background: rgba(255,255,255,0.05);
    color: #fff;
    border: 1px solid rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-3px);
}

/* Sections Common */
section {
    padding: 120px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

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

.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 80px;
}

/* Products Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.product-card {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 50px 30px 40px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255,255,255,0.03);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(0,0,0,0) 100%);
    opacity: 0;
    transition: opacity 0.4s;
    z-index: 1;
}

.product-card:hover {
    transform: translateY(-12px);
    background: var(--card-hover);
    box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.08);
}

.product-card:hover::before {
    opacity: 1;
}

.product-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
    transition: transform 0.6s ease;
    border-radius: 12px;
}

.product-card:hover .product-img {
    transform: scale(1.08);
}

.product-info {
    position: relative;
    z-index: 2;
}

.product-info h3 {
    font-size: 2rem;
    margin-bottom: 12px;
    font-weight: 800;
}

.product-info p {
    color: #888;
    margin-bottom: 25px;
    font-size: 1rem;
}

.product-link {
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    display: inline-block;
    transition: color 0.3s, transform 0.3s;
}

.product-link:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

/* Features Layout */
.features-section {
    padding: 150px 20px;
    display: flex;
    flex-direction: column;
    gap: 180px;
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 100px;
}

.feature-row.reverse {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-text h2 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 25px;
    line-height: 1.1;
}

.feature-text p {
    font-size: 1.25rem;
    color: #a0a0a0;
}

.feature-image {
    flex: 1.2;
}

.placeholder-graphic {
    width: 100%;
    height: 500px;
    border-radius: 40px;
    background: linear-gradient(135deg, #1a1a1a, #0d0d0d);
    position: relative;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 30px 60px rgba(0,0,0,0.6);
    overflow: hidden;
    transition: transform 0.5s ease;
}

.placeholder-graphic:hover {
    transform: scale(1.02);
}

/* Footer */
.footer {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 60px 20px;
    text-align: center;
    color: #666;
    background: #000;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-title { font-size: 3.5rem; }
    .feature-row, .feature-row.reverse {
        flex-direction: column;
        gap: 50px;
        text-align: center;
    }
    .placeholder-graphic {
        height: 350px;
    }
}