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

body {
    font-family: 'Segoe UI', sans-serif;
    background: radial-gradient(circle, #1a2a3a 0%, #050a0f 100%);
    color: white;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

header {
    padding: 20px 0;
    text-align: center;
    background: rgba(0, 0, 0, 0.6);
    position: relative;
    flex-shrink: 0;
}

header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #00aeef, #fff, #00aeef, transparent);
    background-size: 200% 100%;
    transition: 0.6s ease;
}

header:hover::after {
    width: 100%;
    left: 0;
    animation: ledRun 2s infinite linear;
}

@keyframes ledRun {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

header h1 {
    font-size: 2rem;
    letter-spacing: 10px;
    text-transform: uppercase;
}

header h1 span { color: #00aeef; }

nav {
    background: rgba(255, 255, 255, 0.05);
    padding: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

nav ul {
    list-style: none;
    text-align: center;
}

nav ul li { display: inline; margin: 0 20px; }

nav ul li a {
    text-decoration: none;
    color: white;
    font-size: 0.8rem;
    text-transform: uppercase;
    transition: 0.3s;
}

nav ul li a:hover { color: #00aeef; }

.main-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.product-list {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 20px 20px 120px 20px;
    overflow-y: auto;
}

.product-list::-webkit-scrollbar { width: 6px; }
.product-list::-webkit-scrollbar-thumb { background: #00aeef; border-radius: 10px; }

.product-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: 0.4s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
    border-color: #00aeef;
}

.product-card img {
    width: 100%;
    max-height: 120px;
    object-fit: contain;
}

.button {
    margin-top: 10px;
    padding: 8px 20px;
    border: 1px solid #00aeef;
    background: transparent;
    color: white;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.button:hover { background: #00aeef; color: black; }

.sidebar {
    width: 60px;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.side-item {
    writing-mode: vertical-rl;
    padding: 20px 0;
    text-align: center;
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: #666;
    cursor: pointer;
    transition: 0.3s;
}

.side-item:hover { color: #00aeef; }

.social-box {
    margin-top: auto;
    padding-bottom: 30px;
    text-align: center;
}

.social-box a {
    display: block;
    color: white;
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: bold;
    margin: 15px 0;
    transition: 0.3s;
}

.social-box a:hover { color: #00aeef; text-shadow: 0 0 10px #00aeef; }

.footer-container {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    transform: translateY(100%);
    transition: transform 0.4s ease;
}

.footer-trigger {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background: #00aeef;
    color: black;
    padding: 5px 20px;
    font-size: 0.7rem;
    font-weight: bold;
    cursor: pointer;
    border-radius: 10px 10px 0 0;
}

.footer-content {
    background: #000;
    height: 120px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 20px;
    border-top: 2px solid #00aeef;
}

.footer-container:hover { transform: translateY(0); }

.footer-column h3 { font-size: 0.8rem; color: #00aeef; margin-bottom: 5px; }
.footer-column p { font-size: 0.7rem; color: #888; }

@media (max-width: 1200px) { .product-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .product-list { grid-template-columns: 1fr; } }