:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --accent: #0ea5e9;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #f9fafb;
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-border: rgba(255, 255, 255, 0.9);
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

.dark-mode {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --accent: #60a5fa;
    --text: #f3f4f6;
    --text-light: #d1d5db;
    --bg: #111827;
    --card-bg: rgba(30, 41, 59, 0.8);
    --card-border: rgba(30, 41, 59, 0.9);
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    --glass-bg: rgba(15, 23, 42, 0.3);
    --glass-border: rgba(55, 65, 81, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    background-image: url('');
    background-size: 100px 100px;
    min-height: 100vh;
}

.dark-mode body {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect fill="%231e293b" width="50" height="50"/><rect fill="%230f172a" x="50" width="50" height="50"/><rect fill="%230f172a" y="50" width="50" height="50"/><rect fill="%231e293b" x="50" y="50" width="50" height="50"/></svg>');
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary);
}

.logo i {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 30px;
}

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

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

.theme-toggle {
    background: var(--card-bg);
    border-radius: 50px;
    padding: 5px;
    display: flex;
    align-items: center;
    cursor: pointer;
    border: 1px solid var(--glass-border);
}

.theme-toggle-btn {
    background: var(--primary);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
}

.dark-mode .theme-toggle-btn {
    transform: translateX(26px);
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 80px 0;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 40px;
}

.cta-button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 30px;
    font-size: 1.1rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s, transform 0.3s;
}

.cta-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Products Section */
.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: var(--text);
}

.products {
    padding: 60px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text);
}

.product-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.product-price {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
}

/* Request Form */
.request {
    padding: 60px 0;
    background: var(--glass-bg);
    border-radius: 20px;
    margin: 40px 0;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    background: var(--card-bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    margin-top: 60px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-light);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.social-links a {
    color: var(--text);
    font-size: 1.5rem;
    transition: color 0.3s;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
}