/* Leon Unleashed LLC - Business Consulting & Entrepreneurship Blog */
/* CSS Styles */

/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    --primary: #7c3aed;
    --primary-dark: #6d28d9;
    --accent: #f97316;
    --accent-dark: #ea580c;
    --white: #ffffff;
    --charcoal: #1f2937;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--charcoal);
    background-color: var(--white);
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--charcoal);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1.5rem;
}

ul, ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--charcoal);
}

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

.nav a {
    color: var(--charcoal);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav a:hover::after,
.nav a.active::after {
    width: 100%;
}

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

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

.hero h1 {
    color: var(--white);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

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

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

.btn-secondary:hover {
    background: var(--gray-100);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

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

/* ============================================
   Featured Articles
   ============================================ */
.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.section-title p {
    color: var(--gray-500);
    font-size: 1.125rem;
}

.bg-light {
    background: var(--gray-50);
}

/* ============================================
   Article Cards
   ============================================ */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.article-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.article-card-content {
    padding: 1.5rem;
}

.article-category {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
}

.article-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.article-card h3 a {
    color: var(--charcoal);
}

.article-card h3 a:hover {
    color: var(--primary);
}

.article-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary);
}

.read-more:hover {
    color: var(--accent);
    gap: 0.75rem;
}

/* ============================================
   Categories
   ============================================ */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--white);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid transparent;
}

.category-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.category-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.category-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--gray-500);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* ============================================
   Newsletter
   ============================================ */
.newsletter {
    background: linear-gradient(135deg, var(--charcoal) 0%, var(--gray-800) 100%);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

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

.newsletter p {
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto 2rem;
}

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

.newsletter-form input {
    flex: 1;
    padding: 0.875rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
}

.newsletter-form button {
    padding: 0.875rem 2rem;
}

/* ============================================
   About Section
   ============================================ */
.about-preview {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-preview img {
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.about-content h2 {
    margin-bottom: 1.5rem;
}

.about-content p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--charcoal);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

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

.footer-about p {
    opacity: 0.7;
    font-size: 0.95rem;
}

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 1rem;
}

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

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

.footer-links a {
    color: var(--gray-400);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
    opacity: 0.7;
}

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

.social-links a {
    color: var(--white);
    font-size: 1.25rem;
}

.social-links a:hover {
    color: var(--accent);
}

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

.article-header h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    opacity: 0.9;
    font-size: 0.95rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.article-content h2 {
    color: var(--primary);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-size: 1.75rem;
}

.article-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    font-size: 1.35rem;
}

.article-content img {
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: var(--shadow-md);
}

.article-content ul,
.article-content ol {
    margin-bottom: 1.5rem;
}

.article-content li {
    margin-bottom: 0.75rem;
}

.article-image-full {
    margin: 2rem 0;
}

.article-image-full img {
    width: 100%;
    border-radius: 12px;
}

.author-box {
    background: var(--gray-50);
    border-radius: 12px;
    padding: 2rem;
    margin: 3rem 0;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.author-box img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
}

.author-box h4 {
    margin-bottom: 0.25rem;
}

.author-box .author-title {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.author-box p {
    color: var(--gray-600);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.related-posts {
    border-top: 2px solid var(--gray-200);
    padding-top: 3rem;
    margin-top: 3rem;
}

.related-posts h3 {
    margin-bottom: 1.5rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* ============================================
   Blog Page
   ============================================ */
.blog-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
}

.blog-hero h1 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.blog-hero p {
    opacity: 0.9;
}

.blog-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.filter-btn {
    background: var(--white);
    color: var(--charcoal);
    border: 2px solid var(--gray-200);
    padding: 0.5rem 1.25rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

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

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

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

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

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: flex-start;
}

.contact-info-item i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: 0.25rem;
}

.contact-info-item h4 {
    margin-bottom: 0.25rem;
}

.contact-info-item p {
    color: var(--gray-500);
    margin-bottom: 0;
}

/* ============================================
   Static Pages
   ============================================ */
.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.page-content h2 {
    color: var(--primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.page-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.page-content ul,
.page-content ol {
    margin-bottom: 1.5rem;
}

/* ============================================
   Sitemap
   ============================================ */
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}

.sitemap-section h3 {
    color: var(--primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

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

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

.sitemap-section a {
    color: var(--charcoal);
}

.sitemap-section a:hover {
    color: var(--primary);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.35rem; }

    .nav-toggle {
        display: block;
    }

    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        box-shadow: var(--shadow-lg);
    }

    .nav.active {
        display: flex;
    }

    .nav a {
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--gray-100);
    }

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

    .hero p {
        font-size: 1rem;
    }

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

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

    .about-preview img {
        order: -1;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

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

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

    .article-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .section {
        padding: 2.5rem 0;
    }

    .hero {
        padding: 2.5rem 0;
    }

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

    .btn {
        width: 100%;
        text-align: center;
    }

    .author-box {
        flex-direction: column;
        text-align: center;
    }

    .author-box img {
        margin: 0 auto;
    }
}