/* Import Fonts */
@import 'fonts.css';

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

:root {
    --primary-color: #0066cc;
    --secondary-color: #ff6b00;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --dark-gray: #666;
    --white: #ffffff;
    --max-width: 1200px;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.main-header {
    background-color: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    position: relative;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px 0;
    transition: all 0.3s ease;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo img {
    max-width: 300px;
    height: auto;
    display: inline-block;
    vertical-align: middle;
    margin-right: 10px;
}

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

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

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

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 8rem 0 4rem;
    text-align: center;
}

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

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Benefits Section */
.benefits {
    padding: 4rem 0;
    background-color: var(--light-gray);
}

.benefits h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.benefit-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

/* Applications Preview */
.applications-preview {
    padding: 4rem 0;
}

.applications-preview h2 {
    text-align: center;
    margin-bottom: 3rem;
}

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

.application-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

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

.application-card p {
    margin-bottom: 1rem;
}

/* Footer */
.main-footer {
    background-color: #333;
    color: var(--white);
    padding: 4rem 0 2rem;
}

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

.footer-section h3 {
    margin-bottom: 1rem;
}

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

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

.footer-section a {
    color: var(--white);
    text-decoration: none;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--white);
        padding: 80px 20px 20px;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
        right: 0;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .benefits-grid,
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .case-study-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

/* Page Header */
.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 8rem 0 4rem;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Content Section */
.content-section {
    padding: 4rem 0 1rem 0;
}

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

.main-content h2 {
    color: var(--primary-color);
    margin: 2rem 0 1rem;
}

.info-box {
    background-color: var(--light-gray);
    padding: 2rem;
    border-radius: 10px;
    margin: 2rem 0;
}

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

/* Components Grid */
.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.component-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

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

/* Application List */
.application-list {
    list-style: none;
    margin: 2rem 0;
}

.application-list li {
    padding: 1rem;
    background: var(--light-gray);
    margin-bottom: 0.5rem;
    border-radius: 5px;
    transition: transform 0.3s ease;
}

.application-list li:hover {
    transform: translateX(10px);
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 4rem 0;
    background: var(--light-gray);
    margin-top: 4rem;
    border-radius: 10px;
}

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

.cta-section p {
    margin-bottom: 2rem;
}

/* Types Table */
.types-table {
    margin: 2rem 0;
    overflow-x: auto;
}

.types-table table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.types-table th,
.types-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

.types-table th {
    background-color: var(--primary-color);
    color: var(--white);
    font-weight: 500;
}

.types-table tr:hover {
    background-color: var(--light-gray);
}

/* Type Details */
.type-details {
    margin: 3rem 0;
}

.type-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

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

.type-card ul {
    list-style: none;
    margin-top: 1rem;
}

.type-card ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-gray);
}

.type-card ul li:last-child {
    border-bottom: none;
}

/* Selection Guide */
.selection-guide {
    background: var(--light-gray);
    padding: 3rem;
    border-radius: 10px;
    margin: 3rem 0;
}

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

.step {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

/* Responsive Table */
@media (max-width: 768px) {
    .types-table {
        margin: 1rem -20px;
        padding: 0 20px;
    }
    
    .types-table th,
    .types-table td {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .guide-steps {
        grid-template-columns: 1fr;
    }
}

/* Feature List */
.feature-list {
    list-style: none;
    margin-top: 1rem;
}

.feature-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-gray);
    position: relative;
    padding-left: 1.5rem;
}

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

.feature-list li:last-child {
    border-bottom: none;
}

/* Case Studies */
.case-studies {
    margin: 4rem 0;
}

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

.case-study-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.case-study-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.case-study-card p {
    margin-bottom: 1.5rem;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin: 2rem 0;
}

/* Contact Form */
.contact-form-container {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.contact-form {
    margin-top: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--light-gray);
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0,102,204,0.1);
}

/* Contact Info */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

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

.contact-details li {
    margin-bottom: 1rem;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
}

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

.business-hours {
    list-style: none;
}

.business-hours li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--light-gray);
}

.business-hours li:last-child {
    border-bottom: none;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: var(--primary-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 5px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* FAQ Page Styles */
.faq-section {
    margin: 2rem 0;
}

.faq-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-2px);
}

.faq-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.faq-item p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.faq-item ul {
    margin-left: 1.5rem;
    margin-top: 1rem;
}

.faq-item ul li {
    margin-bottom: 0.5rem;
}

/* Blog Page Styles */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.blog-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

.blog-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--dark-gray);
}

.blog-date {
    font-weight: 500;
}

.blog-category {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.2rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
}

.blog-card h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.blog-card p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: var(--secondary-color);
}

/* Resources Section */
.resources-section {
    margin: 4rem 0;
}

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

.resource-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

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

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

.resource-card p {
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

/* Newsletter Section */
.newsletter-section {
    background: var(--light-gray);
    padding: 3rem;
    border-radius: 10px;
    text-align: center;
    margin: 4rem 0;
}

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

.newsletter-section p {
    margin-bottom: 2rem;
    color: var(--dark-gray);
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid var(--light-gray);
    border-radius: 5px;
    font-family: inherit;
}

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

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

.category-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

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

.category-card p {
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

.category-card ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

    .category-card ul li {
        margin-bottom: 0.5rem;
    }
    
    /* Temperature Sensors Page Styles */
    .sensor-types-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
        margin: 2rem 0;
    }
    
    .sensor-type-card {
        background: var(--white);
        padding: 2rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        transition: transform 0.3s ease;
    }
    
    .sensor-type-card:hover {
        transform: translateY(-5px);
    }
    
    .sensor-type-card h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.3rem;
    }
    
    .sensor-type-card p {
        margin-bottom: 1.5rem;
        line-height: 1.6;
    }
    
    .sensor-type-card ul {
        margin-bottom: 1.5rem;
        padding-left: 1.5rem;
    }
    
    .sensor-type-card ul li {
        margin-bottom: 0.5rem;
        line-height: 1.4;
    }
    
    .sensor-type-card ul li strong {
        color: var(--primary-color);
    }
    
    .selection-criteria {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        margin: 2rem 0;
    }
    
    .criteria-item {
        background: var(--white);
        padding: 1.5rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        transition: transform 0.3s ease;
    }
    
    .criteria-item:hover {
        transform: translateY(-3px);
    }
    
    .criteria-item h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.1rem;
    }
    
    .criteria-item p {
        line-height: 1.6;
        color: var(--dark-gray);
    }
    
    .comparison-table {
        margin: 3rem 0;
        overflow-x: auto;
    }
    
    .comparison-table table {
        width: 100%;
        border-collapse: collapse;
        background: var(--white);
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }
    
    .comparison-table th {
        background: var(--primary-color);
        color: var(--white);
        padding: 1rem;
        text-align: left;
        font-weight: 600;
    }
    
    .comparison-table td {
        padding: 1rem;
        border-bottom: 1px solid var(--light-gray);
    }
    
    .comparison-table tr:hover {
        background: var(--light-gray);
    }
    
    /* Comparison Page Styles */
    .comparison-intro {
        margin: 2rem 0;
        text-align: center;
    }
    
    .comparison-intro h2 {
        color: var(--primary-color);
        margin-bottom: 1rem;
    }
    
    .comparison-articles {
        margin: 3rem 0;
    }
    
    .comparison-card {
        background: var(--white);
        padding: 2rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        margin-bottom: 3rem;
        transition: transform 0.3s ease;
    }
    
    .comparison-card:hover {
        transform: translateY(-3px);
    }
    
    .comparison-header {
        margin-bottom: 2rem;
    }
    
    .comparison-header h2 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.5rem;
    }
    
    .comparison-meta {
        display: flex;
        gap: 1rem;
        font-size: 0.9rem;
        color: var(--dark-gray);
    }
    
    .comparison-date {
        font-weight: 500;
    }
    
    .comparison-category {
        background: var(--primary-color);
        color: var(--white);
        padding: 0.2rem 0.8rem;
        border-radius: 15px;
        font-size: 0.8rem;
    }
    
    .comparison-overview {
        margin-bottom: 2rem;
    }
    
    .comparison-overview p {
        font-size: 1.1rem;
        line-height: 1.6;
        color: var(--dark-gray);
    }
    
    .comparison-details {
        margin-top: 2rem;
    }
    
    .comparison-details h3 {
        color: var(--primary-color);
        margin: 1.5rem 0 1rem 0;
        font-size: 1.2rem;
    }
    
    .comparison-details ul {
        margin-left: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .comparison-details ul li {
        margin-bottom: 0.5rem;
        line-height: 1.4;
    }
    
    /* Blog Post Styles */
    .blog-post {
        padding: 2rem 0;
    }
    
    .post-header {
        text-align: center;
        margin-bottom: 3rem;
        padding: 2rem 0;
        border-bottom: 2px solid var(--light-gray);
    }
    
    .post-meta {
        display: flex;
        justify-content: center;
        gap: 1rem;
        margin-bottom: 1rem;
        font-size: 0.9rem;
        color: var(--dark-gray);
    }
    
    .post-date {
        font-weight: 500;
    }
    
    .post-category {
        background: var(--primary-color);
        color: var(--white);
        padding: 0.2rem 0.8rem;
        border-radius: 15px;
        font-size: 0.8rem;
    }
    
    .post-author {
        font-style: italic;
    }
    
    .post-header h1 {
        font-size: 2.5rem;
        color: var(--primary-color);
        margin-bottom: 1rem;
        line-height: 1.2;
    }
    
    .post-excerpt {
        font-size: 1.2rem;
        color: var(--dark-gray);
        max-width: 800px;
        margin: 0 auto;
        line-height: 1.6;
    }
    
    .post-content {
        max-width: 900px;
        margin: 0 auto;
        line-height: 1.7;
    }
    
    .post-content section {
        margin: 3rem 0;
    }
    
    .post-content h2 {
        color: var(--primary-color);
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
        border-bottom: 2px solid var(--light-gray);
        padding-bottom: 0.5rem;
    }
    
    .post-content h3 {
        color: var(--primary-color);
        font-size: 1.4rem;
        margin: 2rem 0 1rem 0;
    }
    
    .post-content h4 {
        color: var(--dark-gray);
        font-size: 1.1rem;
        margin: 1.5rem 0 0.5rem 0;
    }
    
    .post-content p {
        margin-bottom: 1.5rem;
        font-size: 1.1rem;
    }
    
    .post-content ul {
        margin: 1rem 0 1.5rem 2rem;
    }
    
    .post-content ul li {
        margin-bottom: 0.5rem;
        line-height: 1.6;
    }
    
    .principle-card {
        background: var(--white);
        padding: 2rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        margin: 1.5rem 0;
        border-left: 4px solid var(--primary-color);
    }
    
    .principle-card h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
    }
    
    .advantages-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
        margin: 2rem 0;
    }
    
    .advantage-card {
        background: var(--white);
        padding: 2rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        transition: transform 0.3s ease;
    }
    
    .advantage-card:hover {
        transform: translateY(-3px);
    }
    
    .advantage-card h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.3rem;
    }
    
    .advantage-card ul {
        margin-left: 1.5rem;
    }
    
    .advantage-card ul li {
        margin-bottom: 0.8rem;
        line-height: 1.5;
    }
    
    .advantage-card ul li strong {
        color: var(--primary-color);
    }
    
    .decision-flow {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        margin: 2rem 0;
    }
    
    .decision-step {
        background: var(--white);
        padding: 1.5rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        border-left: 4px solid var(--secondary-color);
    }
    
    .decision-step h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.2rem;
    }
    
    .decision-step p {
        margin-bottom: 0.8rem;
        font-size: 1rem;
    }
    
    .decision-step p strong {
        color: var(--secondary-color);
    }
    
    .cost-breakdown {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 2rem;
        margin: 2rem 0;
    }
    
    .cost-card {
        background: var(--white);
        padding: 1.5rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }
    
    .cost-card h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.2rem;
    }
    
    .cost-card ul {
        margin-left: 1.5rem;
    }
    
    .cost-card ul li {
        margin-bottom: 0.5rem;
        line-height: 1.4;
    }
    
    .cost-card ul li strong {
        color: var(--primary-color);
    }
    
    .case-study {
        background: var(--white);
        padding: 2rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        margin: 2rem 0;
        border-left: 4px solid var(--secondary-color);
    }
    
    .case-study h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
    }
    
    .case-study p {
        margin-bottom: 1rem;
    }
    
    .case-study p strong {
        color: var(--secondary-color);
    }
    
    .summary-box {
        background: var(--light-gray);
        padding: 2rem;
        border-radius: 10px;
        margin: 2rem 0;
        border-left: 4px solid var(--primary-color);
    }
    
    .summary-box h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
    }
    
    .post-footer {
        margin-top: 4rem;
        padding-top: 2rem;
        border-top: 2px solid var(--light-gray);
    }
    
    .related-links {
        margin-bottom: 2rem;
    }
    
    .related-links h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
    }
    
    .related-links ul {
        list-style: none;
        margin-left: 0;
    }
    
    .related-links ul li {
        margin-bottom: 0.5rem;
    }
    
    .related-links ul li a {
        color: var(--primary-color);
        text-decoration: none;
        transition: color 0.3s ease;
    }
    
    .related-links ul li a:hover {
        color: var(--secondary-color);
    }
    
    /* Technical Considerations Styles */
    .technical-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
        margin: 2rem 0;
    }
    
    .technical-card {
        background: var(--white);
        padding: 2rem;
        border-radius: 10px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        transition: transform 0.3s ease;
        border-left: 4px solid var(--secondary-color);
    }
    
    .technical-card:hover {
        transform: translateY(-3px);
    }
    
    .technical-card h3 {
        color: var(--primary-color);
        margin-bottom: 1rem;
        font-size: 1.3rem;
    }
    
    .technical-card p {
        margin-bottom: 1rem;
        line-height: 1.6;
    }
    
    .technical-card p strong {
        color: var(--secondary-color);
    }

/* Responsive Contact Page */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form-container,
    .info-card {
        padding: 1.5rem;
    }
    
    .social-links {
        flex-wrap: wrap;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .sensor-types-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-table {
        overflow-x: auto;
    }
} 

/* Spacing for post headers to prevent overlap with fixed header */
.post-header {
    margin-top: 2.5rem;
}

/* Article list styles for subtopic main pages (reusable) */
.basics-article-list,
.comparison-article-list,
.application-article-list {
    max-width: 700px;
    margin: 2.5rem auto;
    padding: 2rem 1.5rem;
    background: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(52, 152, 219, 0.08);
}

.basics-article-list ol,
.comparison-article-list ol,
.application-article-list ol {
    counter-reset: article;
    list-style: none;
    padding: 0;
    margin: 0;
}

.basics-article-list li,
.comparison-article-list li,
.application-article-list li {
    counter-increment: article;
    background: #fff;
    margin-bottom: 1.5rem;
    padding: 1.25rem 1.25rem 1.25rem 3.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.06);
    position: relative;
    transition: box-shadow 0.2s;
}

.basics-article-list li:last-child,
.comparison-article-list li:last-child,
.application-article-list li:last-child {
    margin-bottom: 0;
}

.basics-article-list li::before,
.comparison-article-list li::before,
.application-article-list li::before {
    content: counter(article);
    position: absolute;
    left: 1.25rem;
    top: 1.25rem;
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, #3498db 60%, #6dd5fa 100%);
    color: #fff;
    font-weight: bold;
    font-size: 1.1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(52, 152, 219, 0.15);
}

.basics-article-list a,
.comparison-article-list a,
.application-article-list a {
    color: #2c3e50;
    font-size: 1.15rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
}

.basics-article-list a:hover,
.comparison-article-list a:hover,
.application-article-list a:hover {
    color: #3498db;
    text-decoration: underline;
}

.basics-article-desc,
.comparison-article-desc,
.application-article-desc {
    color: #6c757d;
    font-size: 1rem;
    margin-top: 0.5rem;
}

@media (max-width: 600px) {
    .basics-article-list,
    .comparison-article-list,
    .application-article-list {
        padding: 1rem 0.5rem;
    }
    .basics-article-list li,
    .comparison-article-list li,
    .application-article-list li {
        padding: 1rem 1rem 1rem 2.5rem;
    }
    .basics-article-list li::before,
    .comparison-article-list li::before,
    .application-article-list li::before {
        left: 0.5rem;
        top: 1rem;
        width: 1.5rem;
        height: 1.5rem;
        font-size: 1rem;
    }
} 

/* Ultra-compact single-line Expert Author Badge/Section */
.expert-author {
    display: flex;
    align-items: center;
    flex-direction: row;
    gap: 0.7rem;
    background: #f7fafd;
    border: 1px solid #e0e7ef;
    border-radius: 1.2rem;
    padding: 0.18rem 0.7rem;
    margin: 0.7rem 0 1.2rem 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    max-width: 480px;
    font-size: 0.98rem;
    min-height: 38px;
}
.expert-author .expert-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #dde6f2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.98rem;
    color: #4a5a6a;
    font-weight: 700;
    flex-shrink: 0;
    letter-spacing: 1px;
    margin: 0;
}
.expert-author .expert-info {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    line-height: 1;
    margin: 0;
}
.expert-author .expert-name {
    font-weight: 700;
    color: #1a2a3a;
    font-size: 0.98rem;
    margin: 0;
    line-height: 1;
}
.expert-author .expert-title {
    color: #4a5a6a;
    font-size: 0.98rem;
    font-weight: 400;
    margin: 0;
    line-height: 1;
    padding-left: 0.6rem;
    border-left: 1.2px solid #c2d2e6;
}
.expert-author a {
    color: #0066cc;
    text-decoration: underline;
    font-size: 0.98rem;
    transition: color 0.2s;
}
.expert-author a:hover {
    color: #ff6b00;
}
@media (max-width: 600px) {
    .expert-author {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.5rem 0.7rem;
        gap: 0.2rem;
        max-width: 100%;
        min-height: unset;
    }
    .expert-author .expert-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.1rem;
    }
    .expert-author .expert-avatar {
        width: 26px;
        height: 26px;
        font-size: 0.95rem;
    }
    .expert-author .expert-title {
        border-left: none;
        padding-left: 0;
    }
} 

.post-meta a {
    color: inherit;
    text-decoration: none;
    font-weight: inherit;
    cursor: pointer;
    transition: color 0.2s, text-decoration 0.2s;
}
.post-meta a:hover {
    text-decoration: underline;
    color: var(--primary-color);
}