/* Base Styles */
:root {
    --primary-color: #dc2626;
    --primary-hover: #b91c1c;
    --secondary-color: #1f2937;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --background: #ffffff;
    --background-light: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius-sm: 0.25rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1.25rem;
    color: var(--text-light);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

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

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Buttons */
.cta-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.cta-button.primary {
    background-color: var(--primary-color);
    color: white;
}

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

.cta-button.secondary {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.cta-button.secondary:hover {
    background-color: rgba(220, 38, 38, 0.1);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Header & Navigation */
header {
    background-color: var(--background);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--secondary-color);
    font-weight: 500;
    text-decoration: none;
    position: relative;
}

.nav-links a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: -100px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem;
    min-width: 800px;
    display: none;
    z-index: 1000;
    flex-wrap: wrap;
}

.dropdown:hover .dropdown-menu {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.dropdown-column {
    flex: 1;
    min-width: 200px;
    padding: 0 1rem;
    margin-bottom: 1rem;
}

.dropdown-column h4 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-column a {
    display: block;
    padding: 0.5rem 0;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-column a:hover {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-color);
}

/* Product Hero */
.product-hero {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.product-hero .container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.product-hero-content {
    flex: 1;
}

.product-hero h1 {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.product-hero h2 {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.product-hero-image {
    flex: 1;
    text-align: center;
}

.product-hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

/* Product Overview */
.product-overview {
    padding: 6rem 0;
}

.overview-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.key-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    padding: 2rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Product Specifications */
.product-specs {
    padding: 6rem 0;
    background-color: var(--background-light);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.specs-column {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.specs-column h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-label {
    font-weight: 500;
    color: var(--secondary-color);
}

.spec-value {
    font-weight: 600;
    color: var(--text-color);
}

/* Product Features */
.product-features {
    padding: 6rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: rgba(220, 38, 38, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: var(--primary-color);
}

/* Included Items */
.included-items {
    padding: 6rem 0;
    background-color: var(--background-light);
}

.included-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.included-item {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.included-item img {
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}

.included-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.included-item ul {
    list-style: none;
    padding-left: 0;
}

.included-item li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.included-item li:before {
    content: '✓';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
}

.cta-section h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta-section p {
    color: #e5e7eb;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section a {
    display: block;
    color: #d1d5db;
    margin-bottom: 0.75rem;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
    padding-left: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #9ca3af;
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .dropdown-menu {
        min-width: 600px;
        left: -150px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow);
        z-index: 1000;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .dropdown-menu {
        position: static;
        display: none;
        width: 100%;
        min-width: 100%;
        box-shadow: none;
        padding: 0;
        margin-top: 1rem;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }

    .dropdown-column {
        padding: 0;
        margin-bottom: 1.5rem;
    }

    .product-hero .container {
        flex-direction: column;
        text-align: center;
    }

    .product-hero-image {
        margin-top: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-button {
        width: 100%;
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .product-hero {
        padding: 120px 0 60px;
    }
    
    .specs-grid, .features-grid, .included-grid {
        grid-template-columns: 1fr;
    }
}