/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #e2e8f0;
    --secondary-color: #1e293b;
    --accent-color: #334155;
    --text-color: #f1f5f9;
    --text-light: #cbd5e1;
    --border-color: #475569;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.4);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Light theme */
[data-theme="light"] {
    --primary-color: #1a1a1a;
    --secondary-color: #ffffff;
    --accent-color: #f5f5f5;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #e5e5e5;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--secondary-color);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

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

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    transform: translateY(-2px);
}

/* Navigation */
.nav {
    background-color: var(--accent-color);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    display: block;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo .logo {
    height: 50px;
    width: 50px;
    object-fit: contain;
    background-color: var(--primary-color);
    border-radius: 50%;
    transition: var(--transition);
    aspect-ratio: 1;
}

[data-theme="light"] .nav-logo .logo {
    background-color: transparent;
    padding: 0;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

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

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

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    transform: scale(1.1);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
    text-align: center;
}

.hero-logo {
    margin-bottom: 2rem;
}

.hero-logo-img {
    width: 200px;
    height: 200px;
    object-fit: contain;
    background-color: var(--primary-color);
    border-radius: 50%;
    transition: var(--transition);
}

[data-theme="light"] .hero-logo-img {
    background-color: transparent;
    padding: 0;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.feature span {
    font-weight: 500;
    color: var(--text-color);
}

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

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
}

/* Products Section */
.products {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.product-category {
    background: var(--accent-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.product-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.product-item {
    padding: 0.5rem 0;
    color: var(--text-color);
    font-weight: 400;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

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

.product-item:hover {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

.products-cta {
    text-align: center;
    padding: 2rem;
    background: var(--primary-color);
    color: var(--secondary-color);
    border-radius: var(--border-radius);
}

.products-cta p {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

/* About Section */
.about {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.about-text p {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

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

.value:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.value h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.value p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-text {
    text-align: center;
    margin-bottom: 3rem;
}

.contact-text h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-text p {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.contact-item {
    text-align: center;
    padding: 2rem;
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.contact-item h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Form Styles */
.form {
    background: var(--accent-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 26, 26, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.footer-logo .logo {
    height: 40px;
    width: 40px;
    object-fit: contain;
    background-color: var(--primary-color);
    border-radius: 50%;
    transition: var(--transition);
}

[data-theme="light"] .footer-logo .logo {
    background-color: transparent;
    padding: 0;
}

.footer-text p {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
    padding: 8px;
    border-radius: 4px;
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background-color: var(--accent-color);
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--accent-color);
    box-shadow: var(--shadow);
    border-top: 1px solid var(--border-color);
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu .nav-menu {
    flex-direction: column;
    padding: 1rem 0;
    gap: 0;
}

.mobile-menu .nav-item {
    width: 100%;
}

.mobile-menu .nav-link {
    display: block;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.mobile-menu .nav-link:hover {
    background-color: var(--secondary-color);
}

.mobile-menu .theme-toggle {
    margin: 1rem 2rem;
    align-self: flex-start;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: block !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 1000 !important;
        background-color: var(--accent-color) !important;
        box-shadow: var(--shadow) !important;
        border-bottom: 1px solid var(--border-color) !important;
    }
    
    .nav-container {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        padding: 1rem 20px !important;
        max-width: none !important;
        margin: 0 !important;
    }
    
    .nav-menu {
        display: none !important;
    }
    
    .mobile-menu.active .nav-menu {
        display: flex !important;
        flex-direction: column !important;
    }
    
    .mobile-menu-toggle {
        display: block !important;
        background: none !important;
        border: none !important;
        font-size: 1.5rem !important;
        cursor: pointer !important;
        color: var(--primary-color) !important;
        padding: 8px !important;
    }
    
    .nav-logo {
        display: block !important;
    }
    
    .nav-logo .logo {
        display: block !important;
        height: 40px !important;
        width: 40px !important;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-features {
        gap: 1.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .container {
        padding: 0 15px;
    }
}

@media (max-width: 480px) {
    .nav {
        display: block !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 1000 !important;
        background-color: var(--accent-color) !important;
    }
    
    .nav-container {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        padding: 0.75rem 15px !important;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .products, .about, .contact {
        padding: 60px 0;
    }
    
    .nav-container {
        padding: 0.75rem 15px;
    }
    
    .nav-logo .logo {
        height: 40px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.product-category,
.value,
.contact-item {
    animation: fadeInUp 0.8s ease-out;
}