:root {
    --bg-color: #0d1117;
    --card-bg-color: rgba(33, 41, 54, 0.5);
    --border-color: rgba(255, 255, 255, 0.2);
    --text-color: #c9d1d9;
    --heading-color: #ffffff;
    --accent-color: #58a6ff;
    --hover-accent-color: #1f6feb;
    --font-family: 'Poppins', sans-serif;
    --border-radius: 12px;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    background-image: linear-gradient(45deg, rgba(13,17,23,0.95) 0%, rgba(13,17,23,0.95) 100%), url('https://picsum.photos/1920/1080?blur=5');
    background-size: cover;
    background-attachment: fixed;
}

.page-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Header & Navigation */
.main-header {
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.site-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--heading-color);
    text-decoration: none;
}

.site-title a {
    color: inherit;
    text-decoration: none;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Main Content Layout */
.content-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

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

main {
    width: 100%;
}

/* Glassmorphism Card Style */
.glass-card {
    background: var(--card-bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    margin-bottom: 2rem;
}

.glass-card h1, .glass-card h2, .glass-card h3 {
    color: var(--heading-color);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.glass-card h1 { font-size: 2.2rem; }
.glass-card h2 { font-size: 1.8rem; border-bottom: 2px solid var(--accent-color); padding-bottom: 0.5rem; }
.glass-card h3 { font-size: 1.4rem; color: var(--accent-color); }
.glass-card p { margin-bottom: 1rem; }
.glass-card a { color: var(--accent-color); text-decoration: none; }
.glass-card a:hover { text-decoration: underline; }

/* Articles Grid on Homepage */
.articles-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

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

.article-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-card-content {
    flex-grow: 1;
}

.article-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--heading-color);
}

.btn-read-more {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--bg-color);
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
    margin-top: 1rem;
}

.btn-read-more:hover {
    background-color: var(--hover-accent-color);
    text-decoration: none;
}

/* Sidebar */
.sidebar .glass-card {
    position: sticky;
    top: 2rem;
}

.sidebar-list {
    list-style: none;
    padding-left: 0;
}

.sidebar-list li {
    margin-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.sidebar-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.promo-text {
    font-style: italic;
    text-align: center;
    padding: 1rem;
    background-color: rgba(88, 166, 255, 0.1);
    border-radius: var(--border-radius);
}

/* Article Page Specifics */
.article-meta {
    font-size: 0.9rem;
    color: var(--text-color);
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.article-content ul {
    padding-left: 20px;
    margin-bottom: 1rem;
}
.article-content ul li {
    margin-bottom: 0.5rem;
}

/* Contact Form */
.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--heading-color);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem;
    background-color: rgba(13, 17, 23, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    font-family: var(--font-family);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.3);
}

.btn-submit {
    display: inline-block;
    width: 100%;
    background-color: var(--accent-color);
    color: var(--bg-color);
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-submit:hover {
    background-color: var(--hover-accent-color);
}


/* Footer */
.main-footer {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}