/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #64748b;
    --accent: #f59e0b;
    --light: #f8fafc;
    --dark: #1e293b;
    --gray: #94a3b8;
    --gray-light: #e2e8f0;
    --success: #10b981;
    --error: #ef4444;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 8px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* Header */
.blog-header {
    background: #ffffff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

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

.logo strong {
    color: var(--accent);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.main-nav a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
}

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

.main-nav a.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-btn {
    background: var(--primary);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

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

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

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

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-btn {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: 0.75rem 2rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Sections */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: var(--dark);
    text-align: center;
}

/* Posts Grid */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.post-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.post-card.featured {
    border: 2px solid var(--primary-light);
}

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

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.post-content {
    padding: 1.5rem;
}

.post-category {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.post-content h3 {
    margin-bottom: 0.75rem;
}

.post-content h3 a {
    color: var(--dark);
    text-decoration: none;
    transition: var(--transition);
}

.post-content h3 a:hover {
    color: var(--primary);
}

.post-excerpt {
    color: var(--secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.875rem;
}

/* Latest Posts */
.posts-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-item {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}

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

.post-link {
    display: flex;
    text-decoration: none;
    color: inherit;
}

.post-item .post-image {
    width: 200px;
    height: 150px;
    flex-shrink: 0;
}

.post-item .post-content {
    flex: 1;
    padding: 1.25rem;
}

.load-more-container {
    text-align: center;
    margin-top: 3rem;
}

.load-more-btn {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 0.75rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Newsletter */
.newsletter-section {
    background: var(--light);
}

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

.newsletter-text h3 {
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.newsletter-text p {
    color: var(--secondary);
}

.newsletter-form {
    display: flex;
    gap: 0.5rem;
    flex: 1;
    max-width: 400px;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
}

.newsletter-form button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background: var(--primary-dark);
}

/* Consultation Form */
.consultation-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.consultation-form {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.consultation-form h3 {
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.consultation-form > p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

.consultation-form form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.consultation-form input,
.consultation-form select {
    flex: 1;
    padding: 0.75rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
}

.consultation-form button {
    background: white;
    color: var(--primary);
    border: none;
    padding: 0.75rem;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.consultation-form button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Footer */
.blog-footer {
    background: var(--dark);
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section a {
    display: block;
    color: var(--gray);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

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

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    z-index: 1000;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* WhatsApp Modal */
.whatsapp-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: var(--radius);
    max-width: 400px;
    width: 90%;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
}

.modal-content h3 {
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.modal-content > p {
    margin-bottom: 1.5rem;
    color: var(--secondary);
}

.modal-content form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-content input,
.modal-content select {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
}

.modal-content button {
    background: #25D366;
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.modal-content button:hover {
    background: #128C7E;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .main-nav {
        flex-wrap: wrap;
        justify-content: center;
    }

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

    .hero-content p {
        font-size: 1.125rem;
    }

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

    .newsletter-content {
        flex-direction: column;
        text-align: center;
    }

    .newsletter-form {
        max-width: 100%;
    }

    .form-row {
        flex-direction: column;
    }

    .post-link {
        flex-direction: column;
    }

    .post-item .post-image {
        width: 100%;
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .whatsapp-float {
        bottom: 1rem;
        right: 1rem;
        width: 50px;
        height: 50px;
    }
}