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

:root {
    /* Color Palette - Soft, Calming, Hopeful */
    --primary-blue: #5B9BD5;
    --primary-blue-dark: #4A7FB0;
    --secondary-lavender: #B8A8D6;
    --accent-coral: #FF9B9B;
    --neutral-white: #FFFFFF;
    --neutral-light: #F8F9FA;
    --neutral-gray: #E9ECEF;
    --text-dark: #2C3E50;
    --text-medium: #5A6C7D;
    --text-light: #8B98A5;

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-heading: Georgia, "Times New Roman", serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.15);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--neutral-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    color: var(--primary-blue-dark);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    background-color: var(--neutral-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    font-family: var(--font-heading);
}

.logo:hover {
    color: var(--primary-blue-dark);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background-color 0.3s ease;
}

.nav-menu a:hover {
    background-color: var(--neutral-gray);
    color: var(--primary-blue);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-lavender) 100%);
    color: var(--neutral-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.hero-cta {
    margin-top: var(--spacing-md);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

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

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

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

.btn-secondary:hover {
    background-color: #ff8585;
    transform: translateY(-2px);
}

/* ===================================
   Featured Categories
   =================================== */
.featured-categories {
    padding: var(--spacing-xl) 0;
    background-color: var(--neutral-light);
}

.featured-categories h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.category-card {
    background-color: var(--neutral-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.category-card h3 {
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.category-card p {
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
}

.card-link {
    display: inline-block;
    color: var(--primary-blue);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 2px solid var(--primary-blue);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.card-link:hover {
    background-color: var(--primary-blue);
    color: var(--neutral-white);
}

/* ===================================
   Popular Articles
   =================================== */
.popular-articles {
    padding: var(--spacing-xl) 0;
}

.popular-articles h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.article-card {
    background-color: var(--neutral-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--neutral-gray);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.article-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.article-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

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

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

.article-card p {
    color: var(--text-medium);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.read-time {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* ===================================
   Newsletter Signup
   =================================== */
.newsletter-signup {
    background: linear-gradient(135deg, var(--secondary-lavender) 0%, var(--primary-blue) 100%);
    color: var(--neutral-white);
    padding: var(--spacing-xl) 0;
}

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

.newsletter-content h2 {
    color: var(--neutral-white);
    margin-bottom: var(--spacing-sm);
}

.newsletter-content p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.newsletter-form input[type="email"] {
    flex: 1;
    min-width: 250px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.newsletter-form button {
    padding: var(--spacing-sm) var(--spacing-md);
}

/* ===================================
   Footer
   =================================== */
footer {
    background-color: var(--text-dark);
    color: var(--neutral-white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

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

.footer-section h4 {
    color: var(--neutral-white);
    margin-bottom: var(--spacing-sm);
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: var(--neutral-gray);
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--neutral-white);
}

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

/* ===================================
   Article Page Styles
   =================================== */
.article-header {
    padding: var(--spacing-lg) 0;
    text-align: center;
    background-color: var(--neutral-light);
}

.article-meta {
    color: var(--text-medium);
    font-size: 0.95rem;
    margin-top: var(--spacing-sm);
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-sm);
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.article-content ul,
.article-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.article-content li {
    margin-bottom: var(--spacing-xs);
}

.affiliate-button {
    display: inline-block;
    background-color: var(--accent-coral);
    color: var(--neutral-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    margin: var(--spacing-sm) 0;
    transition: all 0.3s ease;
}

.affiliate-button:hover {
    background-color: #ff8585;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.product-card {
    background-color: var(--neutral-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.product-card h4 {
    margin-bottom: var(--spacing-sm);
}

.product-card p {
    color: var(--text-medium);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.category-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-lavender) 100%);
    color: var(--neutral-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.category-header h1 {
    color: var(--neutral-white);
}

.category-description {
    font-size: 1.125rem;
    max-width: 800px;
    margin: var(--spacing-sm) auto 0;
    opacity: 0.95;
}

.article-list {
    padding: var(--spacing-lg) 0;
}

.article-list-item {
    background-color: var(--neutral-white);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--neutral-gray);
    transition: box-shadow 0.3s ease;
}

.article-list-item:hover {
    box-shadow: var(--shadow-md);
}

.article-list-item h3 {
    margin-bottom: var(--spacing-xs);
}

.article-list-item h3 a {
    color: var(--text-dark);
}

.article-list-item h3 a:hover {
    color: var(--primary-blue);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--neutral-gray);
    }

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

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

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .category-grid,
    .article-grid,
    .product-grid {
        grid-template-columns: 1fr;
    }

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

    .newsletter-form input[type="email"],
    .newsletter-form button {
        width: 100%;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}