/* VPX Unified Portal - Shared Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* CSS Variables */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: rgba(30, 41, 59, 0.95);
    --text-primary: #f8fafc;
    --text-dim: #94a3b8;
    --accent-blue: #3b82f6;
    --accent-blue-light: #60a5fa;
    --accent-blue-dim: rgba(59, 130, 246, 0.1);
    --accent-green: #10b981;
    --accent-green-dim: rgba(16, 185, 129, 0.1);
    --border-color: rgba(59, 130, 246, 0.2);
    --danger: #ef4444;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Binary Background */
.binary-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--accent-blue);
    opacity: 0.04;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Navigation */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    color: var(--text-dim);
    font-weight: 400;
}

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

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-cta {
    padding: 0.5rem 1.25rem;
    background: var(--accent-blue);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--accent-blue-light);
    transform: translateY(-2px);
}

/* Sections */
section {
    position: relative;
    z-index: 1;
    padding: 6rem 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-subtitle {
    font-size: 0.85rem;
    color: var(--accent-blue);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    font-weight: 600;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -1px;
    line-height: 1.1;
}

h1 span {
    color: var(--accent-blue);
}

h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--accent-blue-light);
}

p {
    font-size: 1.1rem;
    color: var(--text-dim);
    line-height: 1.8;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: radial-gradient(ellipse at top, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero .subtitle {
    font-size: 1rem;
    color: var(--accent-blue);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero .slogan {
    font-size: 1.2rem;
    color: var(--text-dim);
    margin-bottom: 2.5rem;
}

.hero-highlight {
    background: var(--accent-blue-dim);
    border: 1px solid var(--accent-blue);
    padding: 1.5rem 2rem;
    border-radius: 12px;
    max-width: 700px;
    margin: 0 auto 2.5rem;
    text-align: left;
}

.hero-highlight p {
    color: var(--text-primary);
    margin: 0;
    font-size: 1rem;
    line-height: 1.7;
}

.hero-highlight code {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-blue-light);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95em;
}

/* Terminal */
.terminal {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    text-align: left;
    font-family: 'JetBrains Mono', monospace;
    margin: 2rem auto;
    max-width: 600px;
    border: 1px solid var(--border-color);
    position: relative;
}

.terminal-header {
    display: flex;
    gap: 8px;
    margin-bottom: 1rem;
}

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

.terminal-dot:nth-child(1) { background: #ff5f56; }
.terminal-dot:nth-child(2) { background: #ffbd2e; }
.terminal-dot:nth-child(3) { background: #27ca40; }

.terminal-content {
    color: var(--accent-blue-light);
    font-size: 0.95rem;
    line-height: 1.8;
}

.terminal-content .prompt {
    color: var(--accent-blue);
}

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

.copy-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-dim);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: var(--accent-blue);
    color: var(--bg-primary);
}

/* Problem/Solution */
.problem-solution {
    background: var(--bg-secondary);
}

.problem-solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.problem-card, .solution-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
}

.problem-card {
    border-left: 4px solid var(--danger);
}

.solution-card {
    border-left: 4px solid var(--accent-green);
}

.problem-card h3 {
    color: var(--danger);
}

.solution-card h3 {
    color: var(--accent-green);
}

.problem-list, .solution-list {
    list-style: none;
    margin-top: 1.5rem;
}

.problem-list li, .solution-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.problem-list li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--danger);
}

.solution-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-green);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.1);
}

.feature-card .card-title {
    font-size: 0.85rem;
    color: var(--accent-blue);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 0;
}

.feature-card ul {
    list-style: none;
    margin-top: 1rem;
}

.feature-card li {
    padding: 0.5rem 0;
    padding-left: 1.25rem;
    position: relative;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.feature-card li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

/* Kernel Grid */
.kernel-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.kernel-item {
    text-align: center;
    background: var(--bg-card);
    padding: 2rem 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.kernel-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.kernel-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.kernel-name {
    font-size: 1.1rem;
    color: var(--accent-blue-light);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.kernel-desc {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Architecture Cards */
.arch-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.arch-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.arch-card h3 {
    margin-bottom: 1.5rem;
}

/* Metrics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    margin: 3rem 0;
}

.metric-item {
    text-align: center;
    background: var(--bg-card);
    padding: 2rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.metric-note {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-top: 2rem;
}

/* Distro Grid */
.distro-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.distro-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
}

.distro-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.15);
}

.distro-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.distro-name {
    font-size: 1.3rem;
    color: var(--accent-blue-light);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.distro-tech {
    font-size: 0.8rem;
    color: var(--accent-blue);
    background: var(--accent-blue-dim);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 1rem;
    font-weight: 500;
}

.distro-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.6;
}

/* Audience Grid */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.audience-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.audience-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-3px);
}

.audience-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.audience-title {
    font-size: 1.1rem;
    color: var(--accent-blue-light);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.audience-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* Benefits Container */
.benefits-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 15px 30px rgba(59, 130, 246, 0.1);
}

.benefit-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.benefit-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-blue-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.benefit-title {
    font-size: 1.2rem;
    color: var(--accent-blue-light);
    font-weight: 600;
}

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

.benefit-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.benefit-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

/* Comparison Tables */
.comp-tabs {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.comp-tab {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-dim);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.comp-tab:hover, .comp-tab.active {
    background: var(--accent-blue-dim);
    border-color: var(--accent-blue);
    color: var(--accent-blue-light);
}

.comp-panel {
    display: none;
}

.comp-panel.active {
    display: block;
}

.comp-table-wrap {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.comp-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.comp-table th {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
    padding: 1rem 1.25rem;
    text-align: left;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.comp-table td {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.08);
    color: var(--text-primary);
}

.comp-table tr:hover td {
    background: var(--accent-blue-dim);
}

.comp-table td:first-child {
    color: var(--text-dim);
    font-style: italic;
}

.comp-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.comp-badge.high {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.comp-badge.medium {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.comp-badge.low {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.25);
}

/* Timeline */
.timeline-container {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin: 4rem auto;
    max-width: 900px;
    padding: 2rem 0;
}

.timeline-line {
    position: absolute;
    top: 35px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-blue-light), var(--accent-blue));
    z-index: 1;
}

.timeline-item {
    position: relative;
    z-index: 2;
    cursor: pointer;
    text-align: center;
    flex: 1;
    transition: all 0.3s ease;
}

.timeline-item:hover {
    transform: translateY(-5px);
}

.timeline-item:hover .timeline-dot {
    background: var(--accent-blue-light);
    box-shadow: 0 0 20px var(--accent-blue);
    transform: scale(1.2);
}

.timeline-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-blue);
    border: 2px solid var(--bg-primary);
    margin: 0 auto 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px var(--accent-blue-dim);
}

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

.timeline-item:hover .timeline-content {
    border-color: var(--accent-blue);
}

.timeline-date {
    font-size: 0.8rem;
    color: var(--accent-blue);
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    font-weight: 600;
}

.timeline-title {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 0.3rem;
}

.timeline-desc {
    font-size: 0.8rem;
    color: var(--text-dim);
}

.timeline-detail {
    background: var(--bg-card);
    border: 1px solid var(--accent-blue);
    border-radius: 12px;
    padding: 2rem;
    max-width: 700px;
    margin: 2rem auto 0;
    display: none;
}

.timeline-detail.active {
    display: block;
}

.timeline-detail h4 {
    color: var(--accent-blue-light);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.timeline-detail ul {
    list-style: none;
    text-align: left;
}

.timeline-detail li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.timeline-detail li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

/* Commands Table */
.table-container {
    max-width: 700px;
    margin: 2rem auto;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

th, td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--bg-tertiary);
    color: var(--accent-blue);
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: 600;
}

tr:hover {
    background: var(--accent-blue-dim);
}

td code {
    color: var(--accent-blue-light);
    font-family: 'JetBrains Mono', monospace;
    background: var(--accent-blue-dim);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9em;
}

/* Installation Steps */
.install-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 3rem 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.install-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.install-card .card-title {
    font-size: 1.1rem;
    color: var(--accent-blue-light);
    font-weight: 600;
    margin-bottom: 1rem;
}

.install-card p {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.deps-card {
    grid-column: 1 / -1;
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.deps-card .card-title {
    font-size: 1.1rem;
    color: var(--accent-blue-light);
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Insight Box */
.insight-box {
    font-size: 0.95rem;
    color: var(--text-dim);
    text-align: center;
    padding: 1.5rem 2rem;
    background: var(--accent-blue-dim);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    max-width: 800px;
    margin: 3rem auto 0;
    line-height: 1.7;
}

.insight-box strong {
    color: var(--accent-blue-light);
}

.insight-box code {
    color: var(--accent-blue-light);
    font-family: 'JetBrains Mono', monospace;
    background: rgba(59, 130, 246, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

/* Global Problem Layout */
.global-problem-layout {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    margin: 3rem 0;
    align-items: start;
}

.gp-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gp-header {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    text-align: center;
}

.gp-header-red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.gp-header-green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.gp-os-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.gp-os-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    text-align: center;
}

.gp-os-name {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.gp-os-detail {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.gp-arrow {
    text-align: center;
    font-size: 1.5rem;
    color: var(--danger);
    opacity: 0.7;
    padding-top: 2rem;
}

.gp-pain-box, .gp-win-box {
    background: var(--bg-card);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.gp-pain-box {
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.gp-win-box {
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.gp-pain-item {
    font-size: 0.85rem;
    color: #fca5a5;
}

.gp-win-item {
    font-size: 0.85rem;
    color: #86efac;
}

.gp-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 3rem;
    gap: 0;
}

.gp-vs-line {
    width: 2px;
    height: 60px;
    background: linear-gradient(var(--accent-blue), transparent);
    opacity: 0.4;
}

.gp-vs-badge {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-blue-dim);
    border: 1px solid var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--accent-blue);
    font-weight: 700;
}

.gp-terminal-mini {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.25rem;
}

.gp-insight {
    font-size: 0.9rem;
    color: var(--text-dim);
    text-align: center;
    padding: 1rem 1.5rem;
    background: var(--accent-blue-dim);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-top: 2rem;
}

.gp-insight code {
    color: var(--accent-blue-light);
}

/* Method Grid */
.method-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.method-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.method-card:hover {
    border-color: var(--accent-blue);
}

.method-card.active {
    border-color: var(--accent-green);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.method-badge {
    display: inline-block;
    background: var(--accent-blue-dim);
    color: var(--accent-blue);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.method-card.active .method-badge {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.method-title {
    font-size: 1.3rem;
    color: var(--accent-blue-light);
    font-weight: 600;
    margin-bottom: 1rem;
}

.method-desc {
    font-size: 0.95rem;
    color: var(--text-dim);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.method-use {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-blue);
}

.method-card.active .method-use {
    border-left-color: var(--accent-green);
}

.method-use-title {
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.method-card.active .method-use-title {
    color: var(--accent-green);
}

.method-use-list {
    list-style: none;
}

.method-use-list li {
    padding: 0.3rem 0;
    padding-left: 1.25rem;
    position: relative;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.method-use-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
}

.method-card.active .method-use-list li::before {
    color: var(--accent-green);
}

/* Security Cards */
.security-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.security-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.security-card-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.security-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.security-card p {
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.footer-copyright {
    color: var(--text-dim);
    font-size: 0.85rem;
}

/* Landing Page Specific Styles */
.landing-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    background: radial-gradient(ellipse at top, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
}

.landing-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.landing-logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -2px;
}

.landing-logo .vpx {
    color: var(--accent-blue);
}

.landing-logo .eco {
    color: var(--text-dim);
}

.landing-tagline {
    font-size: 1.5rem;
    color: var(--text-dim);
    margin-bottom: 3rem;
}

.landing-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.landing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.landing-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.15);
}

.landing-card-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.landing-card-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-blue-light);
    margin-bottom: 1rem;
}

.landing-card-desc {
    font-size: 1rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.landing-card-btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: var(--accent-blue);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.landing-card-btn:hover {
    background: var(--accent-blue-light);
    transform: translateY(-2px);
}

.landing-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
    flex-wrap: wrap;
}

.landing-feature {
    text-align: center;
}

.landing-feature-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.landing-feature-text {
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* Page Hero (for tools and linux pages) */
.page-hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    text-align: center;
}

.page-hero-content h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    margin-bottom: 1rem;
}

.page-hero-content p {
    font-size: 1.3rem;
    color: var(--text-dim);
    max-width: 600px;
    margin: 0 auto;
}

/* Documentation Section */
.docs-section {
    background: var(--bg-secondary);
}

.docs-content {
    max-width: 800px;
    margin: 0 auto;
}

.docs-section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 2rem 0 1rem;
    color: var(--text-primary);
}

.docs-section p {
    color: var(--text-dim);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.docs-section ul {
    list-style: none;
    margin: 1rem 0;
}

.docs-section li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-dim);
}

.docs-section li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

.docs-section a {
    color: var(--accent-blue);
    text-decoration: none;
}

.docs-section a:hover {
    text-decoration: underline;
}

.docs-section code {
    background: var(--accent-blue-dim);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9em;
    color: var(--accent-blue-light);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 2rem 0;
}

.req-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.req-box h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.req-box ul {
    list-style: none;
}

.req-box li {
    padding: 0.3rem 0;
    color: var(--text-dim);
    font-size: 0.9rem;
}

.install-steps {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.install-steps ol {
    list-style: none;
    counter-reset: step;
}

.install-steps li {
    padding: 0.75rem 0;
    padding-left: 2.5rem;
    position: relative;
    color: var(--text-dim);
    counter-increment: step;
}

.install-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    width: 24px;
    height: 24px;
    background: var(--accent-blue);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.i3-shortcuts {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow-x: auto;
}

.i3-shortcuts code {
    display: block;
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: pre;
    overflow-x: auto;
}

.contact-info {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.contact-info p {
    color: var(--text-dim);
}

.contact-info a {
    color: var(--accent-blue);
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

/* Download Section */
.download-section {
    text-align: center;
}

.download-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    max-width: 500px;
    margin: 0 auto;
    box-shadow: var(--card-shadow);
}

.download-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.download-card .size {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.download-card .download-btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: var(--accent-blue);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.download-card .download-btn:hover {
    background: var(--accent-blue-light);
    transform: translateY(-2px);
}

.checksums {
    margin-top: 2rem;
    text-align: left;
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-dim);
    overflow-x: auto;
}

.checksums h4 {
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Infographic */
.infographic-container {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 2rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.infographic-item {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.infographic-item:hover {
    border-color: var(--accent-blue);
}

.infographic-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.infographic-label {
    font-size: 0.9rem;
    color: var(--text-dim);
    margin-bottom: 0.75rem;
}

.infographic-note {
    font-size: 0.7rem;
    color: var(--text-dim);
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 1024px) {
    .kernel-grid, .distro-grid, .audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .global-problem-layout {
        grid-template-columns: 1fr;
    }

    .gp-center {
        display: none;
    }

    .timeline-container {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .timeline-line {
        display: none;
    }

    .timeline-item {
        width: 100%;
        max-width: 300px;
    }

    .landing-cards {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .problem-solution-grid,
    .arch-grid,
    .benefits-container,
    .install-grid,
    .method-grid {
        grid-template-columns: 1fr;
    }

    .kernel-grid,
    .distro-grid,
    .audience-grid,
    .metrics-grid,
    .security-grid {
        grid-template-columns: 1fr;
    }

    .hero-highlight {
        padding: 1rem 1.25rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

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

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

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

.animate-in {
    animation: fadeIn 0.6s ease forwards;
}