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

:root {
    --primary-color: #0066cc;
    --primary-dark: #004a99;
    --primary-light: #3385d6;
    --secondary-color: #00a86b;
    --text-dark: #1a1a1a;
    --text-light: #4a4a4a;
    --text-muted: #767676;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

/* Navigation */
.navbar {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-brand .logo {
    height: 50px;
    width: auto;
}

.nav-brand h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

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

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background-color: rgba(0, 102, 204, 0.05);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    padding: 5rem 0;
    text-align: center;
}

.hero-content {
    max-width: 860px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.95);
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--bg-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: #008f5c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-sm);
}

.btn-download:hover {
    background-color: var(--primary-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-download:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-download svg {
    flex-shrink: 0;
    margin-right: 8px;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background-color: var(--bg-white);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--text-dark);
}

/* Features Section - Compact 3x3 Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

/* Icon and Title on Same Line */
.feature-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.feature-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    color: #2563eb;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e293b;
}

.feature-card p {
    margin: 0;
    /*font-size: 0.9rem;*/
    line-height: 1.5;
    color: #64748b;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-header p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Product Section */
.product-section {
    padding: 4rem 0;
}

.product-section.alt-bg {
    background-color: var(--bg-light);
}

.product-detail h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.product-image-container {
    text-align: center;
    margin: 2rem 0 3rem;
    padding: 2rem;
    /*background-color: var(--bg-light);*/
    border-radius: 12px;
}

.product-image {
   /* max-width: 400px;
    width: 100%;*/
    max-width: 100%;    /* 80% of container, not fixed 400px */
    width: 100%;        /* Preferred width */
    height: auto;
    display: block;
    margin: 0 auto;
    /*filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));*/
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.product-detail h3 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.product-detail h4 {
    font-size: 1.375rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.product-content {
    max-width: 1100px;
}

.product-info p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    margin: 1.5rem 0;
}

.feature-list li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.7;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
    font-size: 1.25rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    /*grid-template-columns: repeat(3, 1fr);*/
    gap: 1rem;
    margin: 2rem 0;
}

.spec-item {
    background-color: var(--bg-white);
    padding: 1.25rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: var(--transition);
}

.spec-item:hover {
    box-shadow: var(--shadow-lg);  
    transform: translateY(-4px);   
    border-color: var(--primary-light); 
}

.product-section.alt-bg .spec-item {
    background-color: var(--bg-white);
}

.spec-item strong {
    color: var(--text-dark);
    font-size: 0.9375rem;
    font-weight: 600;
}

.spec-item span {
    color: var(--text-light);
    font-size: 0.9375rem;
}

/* Contact Section */
.contact-section {
    padding: 4rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.contact-info p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.info-block {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-light);
    border-radius: 8px;
}

.info-block h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--primary-color);
}

.contact-list {
    list-style: none;
}

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

.contact-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Contact Form */
.contact-form-container {
    background-color: var(--bg-light);
    padding: 2.5rem;
    border-radius: 8px;
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--bg-white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    padding: 4rem 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

/* Footer */
footer {
    background-color: var(--text-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--bg-white);
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.footer-section h4 {
    color: var(--bg-white);
    font-size: 1.0625rem;
    margin-bottom: 0.75rem;
}

.footer-section p {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.footer-section p.small {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--bg-white);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .specs-grid {
        grid-template-columns: 1fr;
    }

    .product-detail h2 {
        font-size: 1.75rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .features,
    .product-section {
        padding: 3rem 0;
    }

    .contact-form-container {
        padding: 1.5rem;
    }
}