/* Global Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --border-color: #ddd;
    --accent-color: #e74c3c;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --section-padding: 5rem 0;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    margin: 0;
    padding: 0;
}

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

/* Header Styles */
.site-header {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.logo a:hover {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--secondary-color);
    background-color: rgba(52, 152, 219, 0.1);
}

/* Hero Section */
.hero-section {
    padding: 5rem 0;
    background: linear-gradient(to right, #f5f7fa, #e4ecf7);
    position: relative;
    overflow: hidden;
}

.hero-section .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.hero-section h1 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    color: #555;
    margin-bottom: 2rem;
    font-size: 1.25rem;
    line-height: 1.6;
}

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

.cta-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s ease;
    border: 2px solid var(--secondary-color);
}

.cta-button:hover {
    background: #2980b9;
    border-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.cta-button.secondary:hover {
    background: rgba(52, 152, 219, 0.1);
    color: #2980b9;
    border-color: #2980b9;
}

.cta-button i {
    margin-left: 0.5rem;
}

/* Section Header Styles */
.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-header p {
    color: #666;
    font-size: 1.2rem;
    line-height: 1.6;
}

/* Calculator Section */
.calculator-section {
    padding: var(--section-padding);
    background: white;
}

.calculator-intro {
    margin-bottom: 2rem;
    text-align: center;
}

.calculator-intro h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.calculator-intro p {
    color: #666;
}

.calculator {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #2c3e50;
    font-weight: bold;
}

input {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input:focus {
    outline: none;
    border-color: #3498db;
}

button {
    width: 100%;
    padding: 1rem;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

button i {
    margin-left: 0.5rem;
}

.results {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 2px solid #f0f2f5;
}

.results h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: 0.8rem 0;
    border-bottom: 1px solid #f0f2f5;
}

.result-item span:first-child {
    color: #7f8c8d;
}

.result-item span:last-child {
    font-weight: bold;
    color: #2c3e50;
}

/* Features Section */
.features-section {
    padding: var(--section-padding);
    background: #f8f9fa;
}

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

.feature-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.feature-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.feature-item p {
    color: #666;
    line-height: 1.6;
    flex-grow: 1;
}

/* How to Use Section */
.how-to-use-section {
    padding: var(--section-padding);
    background: white;
}

.how-to-use-content {
    display: flex;
    gap: 3rem;
    align-items: center;
    margin-bottom: 3rem;
}

.steps-container {
    flex: 1;
}

.how-to-use-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.how-to-use-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.step-item {
    display: flex;
    margin-bottom: 2rem;
    gap: 1.5rem;
}

.step-number {
    background: var(--secondary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.step-content p {
    color: #666;
    line-height: 1.6;
}

.cta-container {
    text-align: center;
}

/* Blog Section */
.blog-section {
    padding: var(--section-padding);
    background: white;
}

.blog-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.blog-preview-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.blog-preview-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.blog-preview-image {
    height: 200px;
    overflow: hidden;
}

.blog-preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.blog-preview-card:hover .blog-preview-image img {
    transform: scale(1.05);
}

.blog-preview-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-preview-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.blog-preview-content h3 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.blog-preview-content h3 a:hover {
    color: var(--secondary-color);
}

.blog-preview-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #777;
}

.blog-preview-date, .blog-preview-category {
    display: inline-block;
}

.blog-preview-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    flex-grow: 1;
}

.read-more {
    display: inline-flex;
    align-items: center;
    color: var(--secondary-color);
    font-weight: bold;
    text-decoration: none;
    transition: color 0.3s ease;
    margin-top: auto;
}

.read-more i {
    margin-left: 0.5rem;
    transition: transform 0.3s ease;
}

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

.read-more:hover i {
    transform: translateX(3px);
}

.blog-view-all {
    text-align: center;
}

/* Testimonials Section */
.testimonials-section {
    padding: var(--section-padding);
    background: #f8f9fa;
}

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

.testimonial-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.testimonial-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.testimonial-rating {
    color: #f39c12;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.testimonial-content {
    color: #555;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    position: relative;
}

.testimonial-content::before {
    content: '\201C';
    font-size: 3rem;
    color: #e0e0e0;
    position: absolute;
    left: -1rem;
    top: -1rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-info h4 {
    color: var(--primary-color);
    margin-bottom: 0.2rem;
}

.testimonial-info p {
    color: #777;
    font-size: 0.9rem;
}

/* FAQ Section */
.faq-section {
    padding: var(--section-padding);
    background: #f8f9fa;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

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

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.faq-item p {
    color: #666;
    line-height: 1.6;
}

/* Why Choose Us Section */
.why-choose-section {
    padding: var(--section-padding);
    background: white;
}

.why-choose-content {
    display: flex;
    gap: 3rem;
    align-items: center;
}

.why-choose-image {
    flex: 1;
}

.why-choose-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.why-choose-reasons {
    flex: 1;
}

.reason-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.reason-icon {
    color: var(--secondary-color);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.reason-text h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.reason-text p {
    color: #666;
    line-height: 1.6;
}

/* Call-to-Action Section */
.cta-section {
    padding: 4rem 0;
    background: linear-gradient(to right, var(--primary-color), #34495e);
    color: white;
    text-align: center;
}

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

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    margin-bottom: 2rem;
    font-size: 1.2rem;
    opacity: 0.9;
}

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

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

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

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--secondary-color);
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-block;
}

.footer-section ul li a:hover {
    color: white;
    transform: translateX(3px);
}

.disclaimer-text {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 1rem;
}

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

.footer-bottom p {
    color: #bdc3c7;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-section .container,
    .how-to-use-content,
    .why-choose-content {
        flex-direction: column;
    }
    
    .hero-image,
    .how-to-use-image,
    .why-choose-image {
        margin-top: 2rem;
        order: 2;
    }
    
    .hero-content,
    .steps-container,
    .why-choose-reasons {
        order: 1;
    }
    
    .blog-preview-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 3rem 0;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        display: none;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .hero-section h1 {
        font-size: 2.2rem;
    }
    
    .features-grid,
    .faq-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .social-links {
        justify-content: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        text-align: center;
    }
}

/* Mobile Responsiveness */
@media (max-width: 600px) {
    :root {
        --section-padding: 2.5rem 0;
    }
    
    .container {
        margin: 1rem auto;
        padding: 0 15px;
    }
    
    .calculator {
        padding: 1rem;
        margin: 0;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .hero-section h1 {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .results h2 {
        font-size: 1.2rem;
    }

    .input-group {
        margin-bottom: 1rem;
    }

    input {
        padding: 0.6rem;
    }

    button {
        padding: 0.8rem;
    }

    .feature-item,
    .faq-item,
    .testimonial-item,
    .blog-preview-card {
        padding: 1.5rem;
    }
    
    .step-item {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    
    .reason-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .reason-icon {
        margin-bottom: 0.5rem;
    }
    
    .blog-preview-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }

    .footer-section {
        text-align: center;
        padding: 1rem 0;
    }
}