/* --- Bold & Colorful Theme --- */
:root {
    --heading-font: 'Poppins', sans-serif;
    --body-font: 'Poppins', sans-serif;
    --background-color: #F0F2F5; /* Light Gray */
    --text-color: #333;
    --primary-accent: #007BFF; /* Electric Blue */
    --secondary-accent: #FF007F; /* Bright Magenta */
    --dark-bg: #0A192F; /* Dark Navy */
    --light-text: #F0F2F5;
    --border-color: #E4E6EB;
    --container-width: 1200px;
    --header-height: 70px;
    --border-radius: 16px;
}

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

body {
    font-family: var(--body-font);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    font-size: 16px;
    font-weight: 400;
}

h1, h2, h3, h4 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-bg);
}

h1 { font-size: 3rem; font-weight: 800; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.4rem; }

p {
    margin-bottom: 1.5rem;
}

a {
    color: var(--primary-accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

ul {
    list-style: none;
}

/* --- Header & Navigation --- */
.site-header {
    background-color: #FFFFFF;
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
}

.header-container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark-bg);
    letter-spacing: -1px;
}

.main-navigation ul {
    display: flex;
    gap: 2rem;
}

.main-navigation a {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: 50px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.main-navigation a:hover,
.main-navigation a.active {
    background-image: linear-gradient(45deg, var(--primary-accent), var(--secondary-accent));
    color: #FFFFFF;
}

/* --- Main Layout Container --- */
.container {
    max-width: var(--container-width);
    margin: 3rem auto;
    padding: 0 25px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

@media (min-width: 992px) {
    .container {
        grid-template-columns: 3fr 1fr;
    }
}

main.main-content {
    width: 100%;
}

/* --- Hero Section --- */
.hero-section {
    text-align: center;
    padding: 4rem 2rem;
    background-color: var(--dark-bg);
    border-radius: var(--border-radius);
    margin-bottom: 2.5rem;
    color: var(--light-text);
}
.hero-title {
    font-size: 3.5rem;
    color: #FFFFFF;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}
.hero-excerpt {
    font-size: 1.2rem;
    max-width: 750px;
    margin: 0 auto;
    color: rgba(255,255,255,0.8);
}
.hero-excerpt a {
    color: #FFFFFF;
    text-decoration: underline;
    text-underline-offset: 4px;
}
.hero-excerpt a:hover {
    color: var(--secondary-accent);
}

.seo-content {
    margin-bottom: 3rem;
    padding: 2rem;
    background-color: #FFFFFF;
    border-radius: var(--border-radius);
}

/* --- Articles Section --- */
.section-title {
    font-size: 2rem;
    font-weight: 800;
    text-align: left;
    margin-bottom: 2.5rem;
    position: relative;
}

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

@media (min-width: 768px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.article-card {
    background-color: #FFFFFF;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 16px 32px rgba(0,0,0,0.1);
}

.card-content {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-category {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: #FFFFFF;
    background-image: linear-gradient(45deg, var(--primary-accent), var(--secondary-accent));
    padding: 4px 12px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.article-card h3 {
    font-size: 1.3rem;
    flex-grow: 1;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.article-card p {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.card-read-more {
    font-weight: 700;
    color: var(--dark-bg);
    background-color: rgba(0, 123, 255, 0.1);
    padding: 10px 20px;
    border-radius: 50px;
    align-self: flex-start;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.card-read-more:hover {
    background-image: linear-gradient(45deg, var(--primary-accent), var(--secondary-accent));
    color: #FFFFFF;
}

/* --- Sidebar --- */
.sidebar .widget {
    background-color: #FFFFFF;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}

.sidebar .widget-title {
    font-size: 1.2rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.widget-list li {
    padding: 0.5rem 0;
}
.widget-list a {
    color: var(--text-color);
    font-weight: 600;
    display: block;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}
.widget-list a:hover {
    background-color: var(--background-color);
    color: var(--primary-accent);
}

.widget-promo {
    padding: 1.5rem;
    background-color: var(--dark-bg);
    color: var(--light-text);
    border-radius: var(--border-radius);
}
.widget-promo h4 {
    font-size: 1.2rem;
    color: #FFFFFF;
}
.widget-promo p {
    color: rgba(255,255,255,0.8);
}
.widget-promo a {
    color: #FFFFFF;
    text-decoration: underline;
}
.widget-promo a:hover {
    color: var(--secondary-accent);
}

/* --- Footer --- */
.site-footer {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 3rem 0;
    margin-top: 3rem;
    text-align: center;
}

.footer-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 25px;
}

.footer-links {
    margin-bottom: 1.5rem;
}
.footer-links a {
    color: var(--light-text);
    margin: 0 15px;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}
.footer-links a:hover {
    opacity: 1;
}
.copyright {
    font-size: 0.9rem;
    opacity: 0.5;
}

/* --- Article & Page Styles --- */
.page-header h1, .full-article-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
}
.full-article, .page-container {
    background-color: #FFFFFF;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}
.full-article-header, .page-header {
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
}
.article-meta {
    font-size: 0.9rem;
    color: #666;
    margin-top: -1rem;
    margin-bottom: 1rem;
}
.article-content {
    color: #333;
}
.article-content h2, .article-content h3 {
    margin-top: 2.5rem;
    font-weight: 700;
}
.article-content ul, .article-content ol {
    margin-left: 20px;
    margin-bottom: 1.5rem;
}
.article-content li {
    margin-bottom: 0.75rem;
}
.article-content ul {
    list-style-type: '✓ ';
    padding-left: 1rem;
}
.article-content ol {
    list-style-type: decimal;
}

.cta-section {
    background-image: linear-gradient(45deg, var(--primary-accent), var(--secondary-accent));
    border-radius: var(--border-radius);
    padding: 2.5rem;
    margin-top: 3rem;
    text-align: center;
    color: #FFFFFF;
}
.cta-section h3 {
    color: #FFFFFF;
    margin-top: 0;
}
.cta-button {
    display: inline-block;
    background-color: #FFFFFF;
    color: var(--primary-accent);
    padding: 14px 32px;
    font-weight: 700;
    margin-top: 1rem;
    border-radius: 50px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.cta-button:hover {
    color: var(--primary-accent);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* --- Contact Form --- */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 600px;
}
.contact-form label {
    font-weight: 600;
    font-size: 1rem;
    display: block;
    margin-bottom: 0.5rem;
}
.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-family: var(--body-font);
    font-size: 1rem;
    background-color: #FAFAFA;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.2);
}
.contact-form button {
    align-self: flex-start;
    padding: 14px 32px;
    border: none;
    background-image: linear-gradient(45deg, var(--primary-accent), var(--secondary-accent));
    color: #FFFFFF;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    border-radius: 50px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.contact-form button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

/* --- Responsive Adjustments --- */
@media (max-width: 991px) {
    .container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 10px;
        padding: 15px 0;
    }
    .site-header {
        height: auto;
    }
    h1 { font-size: 2.5rem; }
    .hero-title { font-size: 2.5rem; }
    .articles-grid { grid-template-columns: 1fr; }
}