* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: #2c3e50;
    line-height: 1.6;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo span {
    color: #00d4ff;
    font-weight: bold;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #00d4ff;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: #00d4ff;
    transform: translateY(-2px);
}

.search-icon {
    background: rgba(0, 212, 255, 0.1);
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: bold;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
}

.search-box {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.9rem;
    width: 180px;
    transition: all 0.3s ease;
}

.search-box::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.search-box:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.6);
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.3);
}

/* Hero Section */
.hero {
    height: 60vh;
    background: linear-gradient(135deg, rgba(15, 12, 41, 0.8) 0%, rgba(48, 43, 99, 0.8) 100%), url('https://images.unsplash.com/photo-1526733158173-e1b231f394c1?q=80&w=1000') no-repeat center/cover;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
    animation: fadeIn 1s ease-in;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.8s ease-out;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.95;
    animation: slideUp 0.8s ease-out 0.2s backwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn {
    margin-top: 20px;
    padding: 14px 40px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
    border: none;
    cursor: pointer;
    animation: slideUp 0.8s ease-out 0.4s backwards;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 212, 255, 0.5);
    background: linear-gradient(135deg, #00ffff 0%, #00d4ff 100%);
}

.btn:active {
    transform: translateY(-1px);
}

/* Product Section */
main {
    background: white;
    margin: 60px 0;
    padding: 60px 0;
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.1);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.5rem;
    font-weight: 800;
    color: #0f0c29;
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #0099cc);
    border-radius: 2px;
}

/* Filter Buttons */
.filters {
    background: white;
    padding: 30px 0;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.filter-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    padding: 0 20px;
}

.filter-btn {
    padding: 10px 25px;
    background: white;
    border: 2px solid rgba(0, 212, 255, 0.2);
    color: #0f0c29;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.filter-btn:hover {
    border-color: #00d4ff;
    color: #00d4ff;
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.3);
}

/* Blog Grid & Article Cards */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    padding: 0 5%;
    margin-bottom: 50px;
}

.article-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 212, 255, 0.1);
    animation: fadeInUp 0.6s ease-out;
    display: flex;
    flex-direction: column;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 212, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.3);
}

.article-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.article-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .article-image-wrapper img {
    transform: scale(1.08);
}

.category-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: capitalize;
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.article-content {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.article-content h3 {
    font-size: 1.4rem;
    color: #0f0c29;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.article-card:hover .article-content h3 {
    color: #00d4ff;
}

.article-meta {
    font-size: 0.85rem;
    color: #7f8c8d;
    margin-bottom: 12px;
    display: flex;
    gap: 5px;
    flex-wrap: wrap;
}

.article-meta .author {
    font-weight: 600;
    color: #0f0c29;
}

.article-meta .date {
    color: #00d4ff;
    font-weight: 500;
}

.excerpt {
    color: #555;
    font-size: 0.95rem;
    margin-bottom: 15px;
    flex-grow: 1;
    line-height: 1.6;
}

.read-more {
    color: #00d4ff;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    margin-top: auto;
}

.read-more:hover {
    color: #0099cc;
    transform: translateX(5px);
}

/* Footer */
footer {
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    color: white;
    text-align: center;
    padding: 30px 0;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.2);
}

footer p {
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .nav-links {
        gap: 15px;
        font-size: 0.9rem;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 20px;
        padding: 0 3%;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
    }

    .logo {
        font-size: 1.3rem;
    }

    .nav-links {
        gap: 10px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .btn {
        padding: 10px 30px;
        font-size: 0.9rem;
    }
}