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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --max-width: 1200px;
    --spacing: 1rem;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-secondary);
}

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

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

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

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

/* Header */
.site-header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo a {
    color: inherit;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-image {
    height: 40px;
    width: auto;
    display: block;
}

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

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

.logo a:hover .logo-text {
    color: var(--secondary-color);
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

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

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Breadcrumb */
.breadcrumb {
    background-color: var(--bg-color);
    padding: 0.75rem 0;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb a {
    color: var(--text-light);
}

.breadcrumb span {
    color: var(--text-color);
}

/* Main Content */
.main-content {
    padding: 2rem 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}

/* Article */
.article-wrapper {
    background-color: var(--bg-color);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.post-content {
    max-width: 100%;
}

.post-content h1 {
    font-size: 2rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.post-content h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.post-content h3 {
    font-size: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.post-content p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.post-content ul,
.post-content ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.post-content li {
    margin-bottom: 0.5rem;
}

.post-content img {
    margin: 1.5rem 0;
    border-radius: 8px;
}

.post-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-light);
}

.post-content code {
    background-color: var(--bg-secondary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
}

.post-content pre {
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.post-content pre code {
    background: none;
    padding: 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.post-content th,
.post-content td {
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    text-align: left;
}

.post-content th {
    background-color: var(--bg-secondary);
    font-weight: 600;
}

/* Ad Units */
.ad-unit {
    margin: 2rem 0;
    text-align: center;
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-widget {
    background-color: var(--bg-color);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.sidebar-widget h3 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.sidebar-widget p {
    color: var(--text-light);
    font-size: 0.875rem;
}

.category-list {
    list-style: none;
}

.category-list li {
    margin-bottom: 0.5rem;
}

.category-list a {
    color: var(--text-color);
    display: block;
    padding: 0.1rem 0;
    transition: all 0.3s ease;
}

.category-list a:hover {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--text-color);
    opacity: 0.6;
    transition: all 0.3s ease;
}

.social-links a:hover {
    opacity: 1;
    transform: translateY(-2px);
}

/* Social Links di Footer (warna putih) */
.site-footer .social-links a {
    color: rgba(255, 255, 255, 0.7);
}

.site-footer .social-links a:hover {
    color: rgba(255, 255, 255, 1);
}

/* Footer */
.site-footer {
    background-color: var(--text-color);
    color: white;
    margin-top: 3rem;
    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 p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

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

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease;
}

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

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing: 0.75rem;
    }

    .menu-toggle {
        display: flex;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-color);
        box-shadow: var(--shadow-md);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .main-nav.active {
        max-height: 500px;
    }

    .main-nav ul {
        flex-direction: column;
        padding: 1rem;
        gap: 0;
    }

    .main-nav li {
        border-bottom: 1px solid var(--border-color);
    }

    .main-nav a {
        display: block;
        padding: 1rem 0;
    }

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

    .article-wrapper {
        padding: 1.5rem;
    }

    .post-content h1 {
        font-size: 1.75rem;
    }

    .post-content h2 {
        font-size: 1.375rem;
    }

    .post-content h3 {
        font-size: 1.125rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .post-content h1 {
        font-size: 1.5rem;
    }

    .article-wrapper {
        padding: 1rem;
    }

    .sidebar-widget {
        padding: 1rem;
    }
}

/* Print Styles */
@media print {
    .site-header,
    .breadcrumb,
    .sidebar,
    .site-footer,
    .ad-unit {
        display: none;
    }

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

    .article-wrapper {
        box-shadow: none;
        padding: 0;
    }
}

/* Accessibility */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Loading Animation for Images */
img {
    transition: opacity 0.3s ease;
}

img:not([src]) {
    opacity: 0;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection Color */
::selection {
    background-color: var(--primary-color);
    color: white;
}