/*
Theme Name: TCSN Theme
Theme URI: https://thecybersecurity.network
Author: TheCyberSecurity.Network
Description: Custom dark cybersecurity theme matching the TCSN static site design.
Version: 1.0
License: GNU General Public License v2 or later
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css');

:root {
    --primary: #00f5ff;
    --primary-dark: #00b8cc;
    --secondary: #0066ff;
    --dark: #0a0e1a;
    --darker: #050810;
    --card-bg: #0d1117;
    --card-border: #1a2332;
    --text: #e2e8f0;
    --text-muted: #8892a4;
    --success: #00ff88;
    --warning: #ffb800;
    --danger: #ff4757;
    --gradient: linear-gradient(135deg, #00f5ff, #0066ff);
    --font: Inter, sans-serif;
    --font-mono: JetBrains Mono, monospace;
    --radius: 12px;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--dark);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    min-height: 100vh;
}

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

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

/* ===== NAVBAR ===== */
.tcsn-nav {
    position: fixed;
    top: 0; left: 0; width: 100%;
    z-index: 1000;
    background: rgba(10,14,26,0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--card-border);
    padding: 12px 0;
}
.tcsn-nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.tcsn-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-size: 17px;
    font-weight: 700;
}
.tcsn-logo-icon {
    width: 36px; height: 36px;
    background: var(--gradient);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: #000; font-size: 16px;
}
.tcsn-logo .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.tcsn-nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}
.tcsn-nav-links a {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    padding: 7px 12px;
    border-radius: 6px;
    transition: var(--transition);
    white-space: nowrap;
}
.tcsn-nav-links a:hover {
    color: var(--text);
    background: rgba(255,255,255,0.06);
}
.tcsn-btn-sponsor {
    background: var(--gradient);
    color: #000 !important;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

/* ===== MAIN CONTENT ===== */
.tcsn-main {
    max-width: 860px;
    margin: 0 auto;
    padding: 120px 24px 80px;
}

/* ===== ARTICLE HEADER ===== */
.tcsn-article-header {
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--card-border);
}
.tcsn-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.tcsn-breadcrumb a { color: var(--primary); }
.tcsn-breadcrumb i { font-size: 10px; }
.tcsn-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,71,87,0.12);
    color: #ff4757;
    border: 1px solid rgba(255,71,87,0.2);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.tcsn-article-title {
    font-size: clamp(24px, 4vw, 40px);
    font-weight: 800;
    line-height: 1.25;
    color: var(--text);
    margin-bottom: 20px;
}
.tcsn-article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.tcsn-article-meta i { color: var(--primary); margin-right: 4px; }
.tcsn-author-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(0,245,255,0.06);
    border: 1px solid rgba(0,245,255,0.12);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    color: var(--text);
}
.tcsn-cert {
    background: rgba(0,245,255,0.1);
    color: var(--primary);
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
}
.tcsn-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 16px;
}
.tcsn-tag {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 4px;
    font-family: var(--font-mono);
}
.tcsn-tag:hover { color: var(--primary); border-color: rgba(0,245,255,0.3); }

/* ===== ARTICLE CONTENT ===== */
.tcsn-article-content {
    font-size: 17px;
    line-height: 1.8;
    color: var(--text);
}
.tcsn-article-content p { margin-bottom: 20px; }
.tcsn-article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
    margin: 40px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--card-border);
}
.tcsn-article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    margin: 28px 0 12px;
}
.tcsn-article-content ul, .tcsn-article-content ol {
    margin: 16px 0 20px 24px;
}
.tcsn-article-content li {
    margin-bottom: 8px;
    color: var(--text);
}
.tcsn-article-content strong { color: var(--primary); }
.tcsn-article-content code {
    background: rgba(0,245,255,0.08);
    border: 1px solid rgba(0,245,255,0.15);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 14px;
}
.tcsn-article-content pre {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
}
.tcsn-article-content blockquote {
    border-left: 3px solid var(--primary);
    padding: 12px 20px;
    margin: 20px 0;
    background: rgba(0,245,255,0.04);
    border-radius: 0 8px 8px 0;
    color: var(--text-muted);
    font-style: italic;
}
.tcsn-article-content a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-color: rgba(0,245,255,0.3);
}
.tcsn-article-content em {
    color: var(--text-muted);
    font-style: italic;
}

/* ===== RELATED / BACK SECTION ===== */
.tcsn-article-footer {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.tcsn-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0,245,255,0.08);
    border: 1px solid rgba(0,245,255,0.2);
    color: var(--primary);
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}
.tcsn-back-btn:hover {
    background: rgba(0,245,255,0.15);
    color: var(--primary);
}
.tcsn-share {
    display: flex;
    gap: 10px;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
}
.tcsn-share a {
    width: 36px; height: 36px;
    border-radius: 8px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition);
}
.tcsn-share a:hover { color: var(--primary); border-color: var(--primary); }

/* ===== FOOTER ===== */
.tcsn-footer {
    background: var(--darker);
    border-top: 1px solid var(--card-border);
    padding: 48px 0 24px;
    margin-top: 80px;
}
.tcsn-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.tcsn-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 32px;
}
.tcsn-footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
    margin: 12px 0 16px;
    max-width: 280px;
}
.tcsn-social { display: flex; gap: 8px; }
.tcsn-social a {
    width: 36px; height: 36px;
    border-radius: 8px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted);
    font-size: 14px;
    transition: var(--transition);
}
.tcsn-social a:hover { color: var(--primary); border-color: var(--primary); }
.tcsn-footer-links h4 {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 16px;
}
.tcsn-footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.tcsn-footer-links a { color: var(--text-muted); font-size: 14px; }
.tcsn-footer-links a:hover { color: var(--primary); }
.tcsn-footer-bottom {
    border-top: 1px solid var(--card-border);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .tcsn-nav-links { display: none; }
    .tcsn-footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .tcsn-main { padding: 100px 16px 60px; }
    .tcsn-footer-bottom { flex-direction: column; text-align: center; }
}