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

body {
    font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #212529;
    background-color: #FFFFFF;
}

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

/* Header */
.header {
    background-color: #FFFFFF;
    border-bottom: 1px solid #e9ecef;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 0.2rem;
}

.logo .tagline {
    font-size: 0.9rem;
    color: #6c757d;
    font-weight: 400;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    text-decoration: none;
    color: #212529;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav a:hover {
    color: #0D6EFD;
}

/* Hero Section */
.hero {
    background-color: #F8F9FA;
    padding: 4rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    color: #212529;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: #6c757d;
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.search-container {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    gap: 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.search-input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    font-size: 1rem;
    outline: none;
    background-color: #FFFFFF;
}

.search-btn {
    padding: 1rem 2rem;
    background-color: #0D6EFD;
    color: white;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.search-btn:hover {
    background-color: #0b5ed7;
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #212529;
    text-align: center;
    margin-bottom: 3rem;
}

/* Categories Section */
.categories {
    padding: 5rem 0;
    background-color: #FFFFFF;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.category-card {
    background-color: #FFFFFF;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-card:hover {
    border-color: #0D6EFD;
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(13, 110, 253, 0.15);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.category-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #212529;
}

/* Process Section */
.process {
    padding: 5rem 0;
    background-color: #F8F9FA;
    text-align: center;
}

.process-text {
    font-size: 1.2rem;
    color: #495057;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Analysis Section */
.analysis {
    padding: 5rem 0;
    background-color: #FFFFFF;
}

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

.analysis-card {
    background-color: #FFFFFF;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.analysis-card:hover {
    border-color: #0D6EFD;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.analysis-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #212529;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.analysis-card p {
    color: #6c757d;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.read-more {
    color: #0D6EFD;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #0b5ed7;
}

/* Subscribe Section */
.subscribe {
    padding: 5rem 0;
    background-color: #F8F9FA;
    text-align: center;
}

.subscribe-text {
    font-size: 1.2rem;
    color: #495057;
    margin-bottom: 2.5rem;
}

.subscribe-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.email-input {
    flex: 1;
    padding: 1rem 1.5rem;
    border: none;
    font-size: 1rem;
    outline: none;
    background-color: #FFFFFF;
}

.subscribe-btn {
    padding: 1rem 2rem;
    background-color: #198754;
    color: white;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.subscribe-btn:hover {
    background-color: #157347;
}

/* Footer */
.footer {
    background-color: #212529;
    color: #FFFFFF;
    padding: 3rem 0 1rem;
}

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

.footer-section h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #adb5bd;
}

.footer-section p {
    color: #adb5bd;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: #adb5bd;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #FFFFFF;
}

.footer-bottom {
    border-top: 1px solid #495057;
    padding-top: 1rem;
    text-align: center;
    color: #adb5bd;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .search-container,
    .subscribe-form {
        flex-direction: column;
        border-radius: 8px;
    }
    
    .search-input,
    .email-input {
        border-radius: 8px 8px 0 0;
    }
    
    .search-btn,
    .subscribe-btn {
        border-radius: 0 0 8px 8px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .analysis-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 3rem 0;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .categories,
    .process,
    .analysis,
    .subscribe {
        padding: 3rem 0;
    }
    
    .category-card,
    .analysis-card {
        padding: 1.5rem;
    }
}