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

:root {
    --bg: #0a0e13;
    --bg-elevated: #0f1419;
    --border: #1a1f26;
    --accent: #00d9ff;
    --accent-dim: #00809c;
    --text: #e6edf3;
    --text-dim: #7d8590;
    --green: #00ff88;
    --purple: #b877ff;
    --orange: #ffaa00;
    --red: #ff4444;
}

body {
    font-family: 'Berkeley Mono', 'SF Mono', 'Monaco', 'Consolas', monospace;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 13px;
    min-height: 100vh;
    position: relative;
}

body::before,
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

body::before {
    background-image:
        linear-gradient(rgba(0, 217, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 217, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

body::after {
    background-image: repeating-linear-gradient(
        to bottom,
        rgba(0, 217, 255, 0.02),
        rgba(0, 217, 255, 0.02) 1px,
        transparent 1px,
        transparent 4px
    );
}

.container {
    max-width: 880px;
    margin: 0 auto;
    padding: 80px 40px;
    position: relative;
    z-index: 2;
}

.page-header {
    border-left: 3px solid var(--accent);
    padding-left: 20px;
    margin-bottom: 50px;
}

.ascii-logo {
    font-size: 11px;
    line-height: 1.2;
    letter-spacing: -1px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
    white-space: pre;
}

.meta-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    font-size: 11px;
    color: var(--text-dim);
    font-family: 'Courier New', monospace;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 18px;
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.site-nav a {
    color: var(--text-dim);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--accent);
    border-color: var(--accent);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green);
    animation: pulse 2s ease infinite;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.meta-value {
    color: var(--accent);
}

.filter-panel {
    margin-bottom: 50px;
}

.search-shell {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent-dim);
    transition: border-color 0.2s ease;
}

.search-shell:focus-within {
    border-left-color: var(--accent);
}

.search-symbol {
    font-size: 14px;
    color: var(--accent);
    user-select: none;
    pointer-events: none;
}

.search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 13px;
    font-family: inherit;
}


.search-input::placeholder {
    color: var(--text-dim);
}

.tag-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.tag-filter {
    padding: 12px 6px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-dim);
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.15s ease;
    position: relative;
}

.info-panel {
    margin: 40px 0;
    padding: 22px 18px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent-dim);
}

.info-panel h2 {
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
}

.info-panel p {
    font-size: 12px;
    color: var(--text-dim);
}

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

.info-panel a:hover,
.info-panel a:focus-visible {
    text-decoration: underline;
}

.tag-filter::before {
    content: "▸ ";
    opacity: 0;
    transition: opacity 0.15s ease;
}

.tag-filter:hover {
    border-color: var(--accent);
    color: var(--accent);
    padding-left: 8px;
}

.tag-filter:hover::before {
    opacity: 1;
}

.tag-filter.active {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
}

.tag-filter.active::before {
    content: "● ";
    opacity: 1;
}

.stream {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.time-separator {
    position: relative;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border) 20%, var(--border) 80%, transparent 100%);
    margin: 30px 0;
}

.time-label {
    position: absolute;
    left: 0;
    top: -10px;
    background: var(--bg);
    padding: 0 12px;
    font-size: 10px;
    color: var(--accent);
    letter-spacing: 1px;
    font-weight: 700;
}

.packet-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 3px solid var(--border);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
}

.packet-card::before {
    content: "";
    position: absolute;
    left: -3px;
    top: 0;
    width: 3px;
    height: 0;
    background: var(--accent);
    transition: height 0.3s ease;
}

.packet-card:hover {
    border-left-color: var(--accent);
    transform: translateX(2px);
}

.packet-card:hover::before {
    height: 100%;
}

.packet-card.expanded {
    border-left-color: var(--accent);
    background: linear-gradient(90deg, rgba(0, 217, 255, 0.02) 0%, var(--bg-elevated) 65%);
}

.packet-card.expanded::before {
    height: 100%;
}

.packet-header {
    display: grid;
    grid-template-columns: 50px 1fr auto;
    gap: 20px;
    padding: 24px 28px;
    align-items: start;
}

.packet-number {
    font-size: 11px;
    color: var(--text-dim);
    font-family: 'Courier New', monospace;
}

.packet-hex {
    font-size: 9px;
    color: var(--accent-dim);
    margin-top: 2px;
}

.packet-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.packet-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    color: var(--text-dim);
}

.badge {
    padding: 3px 8px;
    font-size: 9px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid;
    background: rgba(0, 217, 255, 0.1);
    color: var(--accent);
    border-color: var(--accent-dim);
}

.badge--networking {
    background: rgba(0, 217, 255, 0.1);
    color: var(--accent);
    border-color: var(--accent-dim);
}

.badge--sse {
    background: rgba(0, 255, 136, 0.1);
    color: var(--green);
    border-color: rgba(0, 255, 136, 0.3);
}

.badge--linux {
    background: rgba(184, 119, 255, 0.1);
    color: var(--purple);
    border-color: rgba(184, 119, 255, 0.3);
}

.badge--automation {
    background: rgba(255, 170, 0, 0.1);
    color: var(--orange);
    border-color: rgba(255, 170, 0, 0.3);
}

.badge--security {
    background: rgba(255, 68, 68, 0.1);
    color: var(--red);
    border-color: rgba(255, 68, 68, 0.3);
}

.meta-bullet {
    color: var(--border);
}

.packet-title {
    font-size: 17px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--text);
}

.packet-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.packet-tag {
    font-size: 10px;
    color: var(--green);
    opacity: 0.7;
}

.packet-stats {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 10px;
    color: var(--text-dim);
    text-align: right;
}

.stat-label {
    text-transform: uppercase;
    font-size: 9px;
    letter-spacing: 0.5px;
}

.stat-value {
    color: var(--accent);
    font-weight: 700;
}

.packet-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.packet-card.expanded .packet-body {
    max-height: 600px;
}

.packet-body-inner {
    padding: 0 28px 28px 98px;
    border-top: 1px solid var(--border);
    margin-top: -1px;
}

.dissection {
    margin-top: 20px;
}

.layer-header {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-dim);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.layer-header::before {
    content: "►";
    color: var(--accent);
}

.layer-text {
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-dim);
}

.layer-tools {
    font-size: 12px;
    color: var(--text);
    margin-top: 6px;
}

.read-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding: 20px 10px;
    color: var(--accent);
    border: 1px solid var(--accent);
    text-decoration: none;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.read-link::after {
    content: "→";
}

.read-link:hover {
    background: var(--accent);
    color: var(--bg);
}

.site-footer {
    margin-top: 80px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 11px;
    color: var(--text-dim);
}

.footer-hex {
    margin-top: 8px;
    font-size: 9px;
    color: var(--accent-dim);
}

::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-dim);
}

@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
    100% {
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 60px 20px;
    }

    .ascii-logo {
        font-size: 9px;
    }

    .packet-header {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .packet-stats {
        flex-direction: row;
        gap: 15px;
        text-align: left;
    }

    .packet-body-inner {
        padding-left: 28px;
    }
}