/* ==========================================================================
   LKB CYBER MINIMALIST STYLESHEET
   ========================================================================== */

:root {
    --color-bg: #05070f;
    --color-surface: rgba(10, 15, 30, 0.55);
    --color-border: rgba(0, 242, 254, 0.12);
    --color-border-hover: rgba(0, 242, 254, 0.3);
    
    --color-text: #cbd5e1;
    --color-text-muted: #64748b;
    --color-text-bright: #ffffff;
    
    --color-primary: #00f2fe; /* Cyber Cyan */
    --color-secondary: #4facfe; /* Electric Blue */
    --color-accent: #ffb300; /* Industrial Amber */
    
    --gradient-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    --border-radius: 16px;
    --transition-speed: 0.3s;
    --transition-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    overflow: hidden;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Canvas Background */
#network-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.65;
}

/* --- Minimal Container & Card --- */
.minimal-container {
    width: 100%;
    max-width: 540px;
    padding: 2rem;
    z-index: 10;
}

.brand-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    padding: 3.5rem 2.5rem;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    transition: border-color var(--transition-speed) var(--transition-ease),
                transform var(--transition-speed) var(--transition-ease);
}

.brand-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

/* Logo */
.logo-icon {
    width: 54px;
    height: 54px;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin: 0 auto 1.5rem auto;
}

.logo-icon svg {
    width: 28px;
    height: 28px;
}

.brand-title {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    color: var(--color-text-bright);
    margin-bottom: 0.5rem;
}

.highlight {
    color: var(--color-primary);
}

.brand-tagline {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    font-weight: 400;
    letter-spacing: 0.02em;
}

/* Divider */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
    margin: 2rem 0;
}

/* Contact Info */
.contact-info {
    margin-bottom: 2rem;
}

.email-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text-bright);
    transition: color var(--transition-speed) var(--transition-ease);
}

.email-link:hover {
    color: var(--color-primary);
}

.email-icon {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

/* PGP Box */
.pgp-box {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 8px;
}

.pgp-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.pgp-fingerprint {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    word-break: break-all;
    line-height: 1.4;
}

.pgp-download {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    margin-top: 0.25rem;
    display: inline-block;
    transition: color var(--transition-speed) var(--transition-ease);
}

.pgp-download:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* --- Responsive --- */
@media (max-width: 480px) {
    .brand-card {
        padding: 2.5rem 1.5rem;
    }
    
    .footer-container {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
    
    .footer-meta {
        text-align: left;
    }
    
    .brand-title {
        font-size: 1.8rem;
    }
    
    .brand-tagline {
        font-size: 0.85rem;
    }
    
    .email-link {
        font-size: 1rem;
    }
}

/* ==========================================================================
   RESEARCH & BLOG STYLES
   ========================================================================== */

/* Home Page Link Button */
.research-link-container {
    margin: 0.5rem 0 2rem 0;
}

.btn-research {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 1.4rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(0, 242, 254, 0.05);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all var(--transition-speed) var(--transition-ease);
    text-decoration: none;
    width: 100%;
}

.btn-research:hover {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
    transform: translateY(-1px);
}

/* Container */
.research-container {
    width: 100%;
    max-width: 900px;
    margin: 4rem auto;
    padding: 2rem;
    z-index: 10;
}

.view-section {
    width: 100%;
    animation: fadeIn 0.4s var(--transition-ease);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Blog Header */
.blog-header {
    margin-bottom: 2.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    margin-bottom: 1.5rem;
    transition: color var(--transition-speed) var(--transition-ease);
}

.back-link:hover {
    color: var(--color-primary);
}

.back-icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-speed) var(--transition-ease);
}

.back-link:hover .back-icon {
    transform: translateX(-3px);
}

.research-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--color-text-bright);
    margin-bottom: 0.5rem;
}

.research-subtitle {
    font-size: 1rem;
    color: var(--color-text-muted);
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 0;
    gap: 1rem;
    color: var(--color-text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 242, 254, 0.1);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error-message, .empty-message {
    text-align: center;
    padding: 3rem 0;
    color: var(--color-text-muted);
}

/* Posts Grid & Cards */
.posts-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: all var(--transition-speed) var(--transition-ease);
}

.post-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.card-cve {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-accent);
    background: rgba(255, 179, 0, 0.1);
    border: 1px solid rgba(255, 179, 0, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.post-card-date {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.post-card-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text-bright);
    margin-bottom: 0.75rem;
}

.post-card-summary {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.post-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.post-card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.post-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 4px;
    color: var(--color-text-muted);
}

.btn-read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
}

.arrow-icon {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-speed) var(--transition-ease);
}

.btn-read-more:hover .arrow-icon {
    transform: translateX(4px);
}

/* ==========================================================================
   DETAILED ARTICLE STYLES
   ========================================================================== */
.article-body {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--border-radius);
    padding: 3.5rem;
}

.article-header {
    margin-bottom: 2rem;
}

.article-meta-top {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.badge-cve {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent);
    background: rgba(255, 179, 0, 0.1);
    border: 1px solid rgba(255, 179, 0, 0.25);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
}

.article-date {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.article-title {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.25;
    color: var(--color-text-bright);
    margin-bottom: 1.5rem;
}

.article-meta-details {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.meta-item {
    display: flex;
    gap: 0.25rem;
}

.meta-label {
    font-weight: 600;
    color: var(--color-text-bright);
}

/* Rich Text Typography */
.markdown-content {
    color: var(--color-text);
    font-size: 1.05rem;
    line-height: 1.7;
}

.article-p {
    margin-bottom: 1.5rem;
}

.article-h2 {
    font-size: 1.5rem;
    color: var(--color-text-bright);
    margin: 2.5rem 0 1rem 0;
}

.article-h3 {
    font-size: 1.25rem;
    color: var(--color-text-bright);
    margin: 2rem 0 1rem 0;
}

.article-quote {
    border-left: 3px solid var(--color-primary);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--color-text-muted);
}

.inline-code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.15);
    padding: 0.15rem 0.35rem;
    border-radius: 4px;
    color: var(--color-primary);
}

/* Terminal Code Blocks */
.terminal-block {
    background: #04060b;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    margin: 2rem 0;
    overflow: hidden;
}

.terminal-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dot.red { background-color: #ff5f56; }
.dot.yellow { background-color: #ffbd2e; }
.dot.green { background-color: #27c93f; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn-copy-code {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-ease);
}

.btn-copy-code:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: rgba(0, 242, 254, 0.05);
}

.btn-copy-code.copied {
    color: var(--color-success);
    border-color: var(--color-success);
    background: rgba(0, 230, 118, 0.05);
}

.terminal-block pre {
    margin: 0;
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
}

.terminal-block code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: #e2e8f0;
    line-height: 1.5;
    display: block;
}

/* --- Responsive Adjustments for Blog --- */
@media (max-width: 768px) {
    .research-container {
        padding: 1rem;
        margin: 2rem auto;
    }
    
    .article-body {
        padding: 2rem 1.5rem;
    }
    
    .article-title {
        font-size: 1.8rem;
    }
    
    .article-meta-details {
        flex-direction: column;
        gap: 0.5rem;
    }
}