/* HostingBuff — HackTheBox inspired theme */

:root {
    --bg-primary: #0a0e14;
    --bg-secondary: #111720;
    --bg-tertiary: #1a2332;
    --bg-elevated: #1e2a3a;
    --border-color: #2a3547;
    --border-accent: #2f4252;
    
    --accent-green: #9fef00;
    --accent-green-dim: #7bc400;
    --accent-green-dark: #5a9400;
    --accent-green-glow: rgba(159, 239, 0, 0.15);
    
    --text-primary: #ffffff;
    --text-secondary: #a4b1cd;
    --text-muted: #6e7a92;
    --text-code: #9fef00;
    
    --danger: #ff3e3e;
    --warning: #ffaf00;
    --info: #00b4d8;
    
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    --font-sans: 'Inter', -apple-system, system-ui, sans-serif;
    
    --shadow-green: 0 0 20px rgba(159, 239, 0, 0.2);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 0%, rgba(159, 239, 0, 0.05), transparent 40%),
        radial-gradient(circle at 90% 100%, rgba(159, 239, 0, 0.03), transparent 40%);
    background-attachment: fixed;
}

/* Scanline/grid overlay for tech aesthetic */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(159, 239, 0, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(159, 239, 0, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-mono);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

a {
    color: var(--accent-green);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--accent-green-dim);
    text-shadow: 0 0 8px var(--accent-green-glow);
}

code, .code {
    font-family: var(--font-mono);
    background: var(--bg-tertiary);
    color: var(--text-code);
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9em;
    border: 1px solid var(--border-color);
}

pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-green);
    border-radius: 6px;
    padding: 1.25rem;
    overflow-x: auto;
    margin: 1.5rem 0;
    position: relative;
}

pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.7;
}

pre::before {
    content: '$ ';
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-weight: 700;
    opacity: 0.5;
    position: absolute;
    top: 1.25rem;
    left: 0.5rem;
    font-size: 0.875rem;
}

pre.no-prompt::before {
    display: none;
}

pre:not(.no-prompt) code {
    padding-left: 1rem;
    display: block;
}

/* Layout */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 2;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    background: rgba(10, 14, 20, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    transition: all 0.3s ease;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.logo:hover {
    color: var(--accent-green);
}

.logo-icon {
    color: var(--accent-green);
    font-size: 1.5rem;
    filter: drop-shadow(0 0 8px var(--accent-green-glow));
}

.logo-bracket {
    color: var(--accent-green);
    opacity: 0.7;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    position: relative;
    padding: 0.25rem 0;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-green);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-cta {
    background: var(--accent-green);
    color: var(--bg-primary) !important;
    padding: 0.625rem 1.25rem;
    border-radius: 4px;
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    border: 1px solid var(--accent-green);
}

.nav-cta:hover {
    background: var(--accent-green-dim);
    box-shadow: var(--shadow-green);
    transform: translateY(-1px);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--accent-green);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    font-family: var(--font-mono);
}

/* Hero */
.hero {
    padding: 6rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent-green-glow);
    border: 1px solid var(--accent-green-dark);
    color: var(--accent-green);
    padding: 0.375rem 0.875rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero h1 {
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero h1 .accent {
    color: var(--accent-green);
    text-shadow: 0 0 20px var(--accent-green-glow);
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 4px;
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-green);
    color: var(--bg-primary);
    border: 1px solid var(--accent-green);
}

.btn-primary:hover {
    background: var(--accent-green-dim);
    color: var(--bg-primary);
    box-shadow: var(--shadow-green);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-accent);
}

.btn-secondary:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

/* Stats bar */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    padding: 2rem 0;
    margin: 3rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stat {
    text-align: left;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--accent-green);
    line-height: 1;
    margin-bottom: 0.375rem;
    text-shadow: 0 0 12px var(--accent-green-glow);
}

.stat-label {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Section */
.section {
    padding: 4rem 0;
}

.section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-title-prefix {
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-weight: 700;
}

.section-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent-green);
}

/* Card grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.75rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover {
    border-color: var(--accent-green-dark);
    transform: translateY(-4px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--accent-green-glow);
}

.card:hover::before {
    opacity: 1;
}

.card-tag {
    display: inline-block;
    background: var(--bg-tertiary);
    color: var(--accent-green);
    padding: 0.25rem 0.625rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    align-self: flex-start;
    border: 1px solid var(--border-color);
}

.card-title {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.card:hover .card-title {
    color: var(--accent-green);
}

.card-desc {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
    flex-grow: 1;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.card-meta span {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.feature {
    padding: 1.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature:hover {
    border-color: var(--accent-green-dark);
    background: var(--bg-tertiary);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-green-glow);
    border: 1px solid var(--accent-green-dark);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-green);
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    font-family: var(--font-mono);
    font-weight: 700;
}

.feature h3 {
    font-family: var(--font-mono);
    margin-bottom: 0.625rem;
    font-size: 1.125rem;
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0;
}

/* Terminal block */
.terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    margin: 2rem 0;
    box-shadow: var(--shadow-card);
}

.terminal-header {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.terminal-dots {
    display: flex;
    gap: 0.375rem;
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

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

.terminal-title {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    margin-left: 0.5rem;
}

.terminal-body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.8;
    overflow-x: auto;
}

.terminal-line {
    display: block;
}

.terminal-prompt {
    color: var(--accent-green);
    margin-right: 0.5rem;
}

.terminal-comment {
    color: var(--text-muted);
}

.terminal-output {
    color: var(--text-secondary);
    margin-left: 0;
}

/* Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    margin: 2rem 0;
    font-family: var(--font-sans);
}

.comparison-table th,
.comparison-table td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--bg-tertiary);
    color: var(--accent-green);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-table td {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover td {
    background: var(--bg-tertiary);
}

.check { color: var(--accent-green); font-weight: 700; }
.cross { color: var(--danger); font-weight: 700; }

/* Affiliate callout */
.affiliate-box {
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--accent-green-dark);
    border-radius: 8px;
    padding: 1.75rem;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.affiliate-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-green);
    box-shadow: 0 0 12px var(--accent-green-glow);
}

.affiliate-label {
    display: inline-block;
    background: var(--accent-green-glow);
    color: var(--accent-green);
    padding: 0.25rem 0.625rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.affiliate-box h3 {
    font-family: var(--font-mono);
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.affiliate-box p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
}

/* Footer */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
    position: relative;
    z-index: 2;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 340px;
}

.footer-brand p {
    margin-top: 1rem;
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.footer-heading {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-family: var(--font-mono);
}

.footer-links a:hover {
    color: var(--accent-green);
}

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 1rem;
}

/* Guide article */
.article-header {
    padding: 4rem 0 2rem;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

.breadcrumb .separator {
    color: var(--accent-green);
    margin: 0 0.5rem;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.article-content {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 3rem;
    padding: 3rem 0;
    max-width: 100%;
}

.article-body {
    min-width: 0;
}

.article-body h2 {
    margin: 2.5rem 0 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.article-body h2:first-child {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.article-body h3 {
    margin: 2rem 0 0.75rem;
    color: var(--accent-green);
    font-size: 1.125rem;
}

.article-body p {
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.article-body ul,
.article-body ol {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--text-secondary);
}

.article-body li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.article-body li::marker {
    color: var(--accent-green);
}

.article-body strong {
    color: var(--text-primary);
    font-weight: 600;
}

.toc {
    position: sticky;
    top: 90px;
    align-self: start;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    font-family: var(--font-mono);
}

.toc-title {
    font-size: 0.75rem;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    font-weight: 600;
}

.toc ul {
    list-style: none;
}

.toc li {
    margin-bottom: 0.5rem;
}

.toc a {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    display: block;
    padding: 0.25rem 0;
    border-left: 2px solid transparent;
    padding-left: 0.75rem;
    transition: all 0.2s ease;
}

.toc a:hover,
.toc a.active {
    color: var(--accent-green);
    border-left-color: var(--accent-green);
}

.callout {
    background: var(--bg-secondary);
    border-left: 3px solid var(--accent-green);
    border-radius: 4px;
    padding: 1.25rem 1.5rem;
    margin: 1.5rem 0;
}

.callout-warning {
    border-left-color: var(--warning);
}

.callout-danger {
    border-left-color: var(--danger);
}

.callout-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.callout-warning .callout-label { color: var(--warning); }
.callout-danger .callout-label { color: var(--danger); }

/* Responsive */
@media (max-width: 968px) {
    .article-content {
        grid-template-columns: 1fr;
    }
    
    .toc {
        position: relative;
        top: 0;
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 720px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero {
        padding: 3rem 0 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .stats {
        gap: 1.5rem;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.fade-in-up:nth-child(2) { animation-delay: 0.1s; }
.fade-in-up:nth-child(3) { animation-delay: 0.2s; }
.fade-in-up:nth-child(4) { animation-delay: 0.3s; }