/* Base & Reset */
:root {
    --void: #050510;
    --abyss: #0a0a18;
    --nebula: #121225;
    --quantum: #00eeff;
    --quantum-glow: rgba(0, 238, 255, 0.15);
    --starlight: #e0f0ff;
    --cosmic-dust: #8a9bb0;
    --event-horizon: #00ffaa;
    --glass-edge: rgba(255, 255, 255, 0.08);
    --warning: #ff3366;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Mono', 'SF Mono', 'Cascadia Code', monospace;
    background: var(--void);
    color: var(--starlight);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
            radial-gradient(circle at 10% 20%, rgba(0, 238, 255, 0.03) 0%, transparent 40%),
            radial-gradient(circle at 90% 80%, rgba(0, 255, 170, 0.03) 0%, transparent 40%);
    pointer-events: none;
    z-index: -2;
}

/* Glass Panel Base */
.glass-panel {
    background: rgba(18, 18, 37, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-edge);
    border-radius: 12px;
    box-shadow:
            0 4px 24px rgba(0, 0, 0, 0.4),
            inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
}

/* Cosmic Header */
.cosmic-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(5, 5, 16, 0.95);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-edge);
    padding: 18px 0;
}

.header-core {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.portal-identity {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.portal-symbol {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--quantum), var(--event-horizon));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 18px;
    color: var(--void);
}

.portal-title {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--starlight), var(--quantum));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.navigation-core {
    display: flex;
    gap: 28px;
}

.nav-vector {
    color: var(--cosmic-dust);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 6px 0;
    position: relative;
    transition: all 0.3s ease;
}

.nav-vector:hover {
    color: var(--starlight);
}

.nav-vector::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--quantum);
    transition: width 0.3s ease;
}

.nav-vector:hover::after {
    width: 100%;
}

/* Quantum Gateway */
.quantum-gateway {
    padding: 180px 0 100px;
    position: relative;
}

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

.gateway-title {
    font-size: 58px;
    font-weight: 800;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--starlight), var(--quantum));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
}

.gateway-subtitle {
    font-size: 18px;
    color: var(--cosmic-dust);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.verification-status {
    display: inline-block;
    background: rgba(0, 238, 255, 0.1);
    border: 1px solid var(--quantum);
    padding: 10px 24px;
    border-radius: 6px;
    margin-top: 20px;
}

.status-text {
    color: var(--quantum);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
}

/* Live Metrics */
.live-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 60px;
}

.metric-cell {
    text-align: center;
    padding: 25px;
}

.metric-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--quantum);
    margin-bottom: 8px;
    font-family: 'SF Mono', monospace;
}

.metric-label {
    font-size: 13px;
    color: var(--cosmic-dust);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* Access Matrix */
.access-matrix {
    padding: 100px 0;
}

.matrix-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    color: var(--starlight);
    margin-bottom: 16px;
}

.warning-alert {
    background: rgba(255, 51, 102, 0.1);
    border: 1px solid rgba(255, 51, 102, 0.3);
    padding: 24px;
    border-radius: 10px;
    max-width: 900px;
    margin: 0 auto 40px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.warning-icon {
    font-size: 22px;
    color: var(--warning);
    flex-shrink: 0;
}

.warning-content {
    color: var(--cosmic-dust);
}

.access-portals {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.portal-card {
    padding: 32px;
    position: relative;
    transition: all 0.4s ease;
}

.portal-card:hover {
    transform: translateY(-5px);
    border-color: var(--quantum);
    box-shadow: 0 12px 32px rgba(0, 238, 255, 0.15);
}

.portal-type {
    position: absolute;
    top: -10px;
    left: 20px;
    background: var(--abyss);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--quantum);
    border: 1px solid var(--quantum);
}

.portal-name {
    font-size: 22px;
    margin-bottom: 12px;
    color: var(--starlight);
}

.portal-description {
    color: var(--cosmic-dust);
    font-size: 15px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.link-display {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-edge);
    padding: 14px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-family: 'SF Mono', monospace;
    font-size: 13px;
    color: var(--event-horizon);
    word-break: break-all;
    position: relative;
}

.copy-hint {
    position: absolute;
    top: -8px;
    right: 10px;
    background: var(--abyss);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    color: var(--cosmic-dust);
    border: 1px solid var(--glass-edge);
}

.portal-action {
    display: flex;
    align-items: center;
    gap: 12px;
}

.verify-link {
    padding: 12px 24px;
    background: rgba(0, 238, 255, 0.1);
    border: 1px solid var(--quantum);
    color: var(--quantum);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.verify-link:hover {
    background: rgba(0, 238, 255, 0.2);
}

/* Protocol Stack */
.protocol-stack {
    padding: 100px 0;
    background: rgba(10, 10, 24, 0.5);
}

.protocol-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.protocol-card {
    padding: 32px;
    transition: all 0.3s ease;
}

.protocol-card:hover {
    background: rgba(0, 238, 255, 0.05);
}

.protocol-step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 32px;
}

.step-marker {
    width: 32px;
    height: 32px;
    background: var(--quantum);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    color: var(--void);
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--starlight);
}

.step-content p {
    color: var(--cosmic-dust);
    font-size: 14px;
}

/* Security Infrastructure */
.security-infrastructure {
    padding: 100px 0;
}

.infra-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.infra-card {
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.infra-card:hover {
    transform: translateY(-4px);
}

.infra-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 238, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
}

.infra-title {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--starlight);
}

.infra-desc {
    color: var(--cosmic-dust);
    font-size: 14px;
    line-height: 1.6;
}

/* Network Monitoring */
.network-monitoring {
    padding: 100px 0;
    background: rgba(10, 10, 24, 0.5);
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.statistics-panel {
    padding: 32px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-box {
    text-align: center;
    padding: 24px;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--quantum);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 13px;
    color: var(--cosmic-dust);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.traffic-panel {
    padding: 32px;
}

.traffic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.traffic-title {
    font-size: 18px;
    color: var(--starlight);
}

.traffic-period {
    color: var(--cosmic-dust);
    font-size: 13px;
}

.traffic-chart {
    height: 180px;
    position: relative;
    border-left: 1px solid var(--glass-edge);
    border-bottom: 1px solid var(--glass-edge);
    padding-left: 40px;
    padding-bottom: 30px;
}

.chart-bar {
    position: absolute;
    bottom: 0;
    width: 40px;
    background: linear-gradient(to top, var(--quantum), var(--event-horizon));
    border-radius: 4px 4px 0 0;
    opacity: 0.8;
}

/* Node Distribution */
.node-distribution {
    padding: 100px 0;
}

.distribution-map {
    padding: 40px;
    text-align: center;
    margin-top: 40px;
}

.nodes-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.node-location {
    text-align: center;
    padding: 20px;
    min-width: 150px;
}

.node-indicator {
    width: 12px;
    height: 12px;
    background: var(--quantum);
    border-radius: 50%;
    margin: 0 auto 12px;
    box-shadow: 0 0 20px var(--quantum-glow);
}

.node-name {
    font-size: 14px;
    color: var(--starlight);
    margin-bottom: 6px;
}

.node-status {
    font-size: 12px;
    color: var(--event-horizon);
}

/* PGP Verification */
.pgp-verification {
    padding: 100px 0;
    background: rgba(10, 10, 24, 0.5);
}

.verification-panel {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
}

.key-block {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-edge);
    padding: 30px;
    border-radius: 10px;
    margin: 30px 0;
    overflow-x: auto;
}

.pgp-key {
    font-family: 'SF Mono', monospace;
    font-size: 13px;
    line-height: 1.8;
    color: var(--event-horizon);
    white-space: pre-wrap;
    word-break: break-all;
}

.verification-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.action-btn {
    padding: 14px 28px;
    background: rgba(0, 238, 255, 0.1);
    border: 1px solid var(--quantum);
    color: var(--quantum);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.action-btn:hover {
    background: rgba(0, 238, 255, 0.2);
    transform: translateY(-2px);
}

/* Security FAQ */
.security-faq {
    padding: 100px 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 16px;
    border-bottom: 1px solid var(--glass-edge);
}

.faq-question {
    padding: 24px 0;
    font-size: 16px;
    color: var(--starlight);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
}

.faq-question::after {
    content: '▸';
    color: var(--quantum);
    transition: transform 0.3s ease;
}

.faq-item:target .faq-question::after {
    transform: rotate(90deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    color: var(--cosmic-dust);
    transition: max-height 0.3s ease-out;
}

.faq-item:target .faq-answer {
    max-height: 500px;
    padding-bottom: 24px;
}

/* Cosmic Footer */
.cosmic-footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--glass-edge);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-warning {
    background: rgba(255, 51, 102, 0.1);
    padding: 30px;
    border-radius: 10px;
    grid-column: span 3;
    text-align: center;
    border: 1px solid rgba(255, 51, 102, 0.2);
}

.footer-copyright {
    text-align: center;
    color: var(--cosmic-dust);
    font-size: 14px;
    padding-top: 40px;
    border-top: 1px solid var(--glass-edge);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .gateway-title {
        font-size: 48px;
    }

    .live-metrics {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .infra-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-warning {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .quantum-gateway {
        padding: 140px 0 80px;
    }

    .gateway-title {
        font-size: 38px;
    }

    .access-portals {
        grid-template-columns: 1fr;
    }

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

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

    .navigation-core {
        display: none;
    }

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

    .footer-warning {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .gateway-title {
        font-size: 32px;
    }

    .section-title {
        font-size: 32px;
    }

    .container {
        padding: 0 16px;
    }

    .portal-card,
    .stat-box,
    .verification-panel {
        padding: 24px;
    }

    .metric-value,
    .stat-number {
        font-size: 28px;
    }
}