:root {
    --bg: #050a0e;
    --panel: #0a1520;
    --panel-alt: #09111a;
    --border: #0d2137;
    --cyan: #00d4ff;
    --green: #00ff88;
    --amber: #ffaa00;
    --red: #ff3333;
    --text: #c8e8f0;
    --muted: #4a7a8a;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    color: var(--text);
    background: radial-gradient(circle at top, rgba(0, 212, 255, 0.12), transparent 35%), linear-gradient(180deg, #061019, var(--bg));
    font-family: 'JetBrains Mono', monospace;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea {
    font: inherit;
    color: var(--text);
}

.grid-overlay, .scanline-overlay {
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
}
.grid-overlay { background-image: linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px); background-size: 36px 36px; }
.scanline-overlay { background: repeating-linear-gradient(to bottom, rgba(255,255,255,0.02), rgba(255,255,255,0.02) 1px, transparent 1px, transparent 4px); }

.layout { position: relative; z-index: 1; display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.sidebar {
    background: rgba(7, 14, 23, 0.92);
    border-right: 1px solid var(--border);
    padding: 24px;
    position: sticky; top: 0; height: 100vh;
}
.brand-block { margin-bottom: 28px; }
.brand-title { color: var(--cyan); font-size: 2rem; font-weight: 700; letter-spacing: 0.18em; text-shadow: 0 0 12px rgba(0,212,255,0.4); }
.brand-subtitle, .section-label, .stat-label, small, .muted-text { color: var(--muted); }
.nav-toggle { display: none; }
.nav-list { display: grid; gap: 12px; }
.nav-item { display: flex; align-items: center; gap: 12px; padding: 14px; border: 1px solid transparent; background: rgba(10, 21, 32, 0.65); clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px)); }
.nav-item.active, .nav-item:hover { border-color: var(--cyan); box-shadow: 0 0 18px rgba(0, 212, 255, 0.22); }
.main-content { padding: 24px; }
.topbar, .footer-bar, .panel, .stat-card, table, .meta-card { background: rgba(10, 21, 32, 0.8); border: 1px solid var(--border); box-shadow: 0 0 12px rgba(0, 212, 255, 0.12); }
.topbar, .footer-bar { display: flex; justify-content: space-between; align-items: center; padding: 18px 20px; margin-bottom: 22px; }
.topbar h1, h2, h3 { margin: 0; }
.topbar p { margin: 6px 0 0; }
.topbar-meta, .actions-row, .badge-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.meta-card, .flash { padding: 10px 12px; }
.panel, .stat-card { padding: 18px; position: relative; overflow: hidden; }
.section-panel { margin-bottom: 22px; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 22px; }
.stat-card strong { display: block; font-size: 1.8rem; margin-top: 8px; }
.stat-card.wide { grid-column: span 2; }
.telemetry-strip, .split-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 22px; }
.telemetry-card strong { display: block; margin-top: 8px; font-size: 1.5rem; }
.dashboard-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 22px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.card-grid.two-columns { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.server-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.server-card { transition: 0.25s ease; }
.card-title-row, .list-row { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.list-row { padding: 12px 0; border-bottom: 1px solid rgba(13,33,55,0.7); }
.button {
    border: 1px solid var(--cyan);
    background: transparent;
    color: var(--text);
    padding: 10px 14px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.button.primary { background: rgba(0, 212, 255, 0.12); }
.button.ghost { border-color: var(--border); }
.button.danger { border-color: var(--red); }
.button.is-loading { animation: pulse 1s infinite; }
.badge, .status-pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 8px; border: 1px solid currentColor; text-transform: uppercase; font-size: 0.78rem; }
.badge-info { color: var(--cyan); }
.badge-warning { color: var(--amber); }
.badge-danger { color: var(--red); }
.badge-muted { color: var(--muted); }
.badge-ok { color: var(--green); }
.badge-danger, .text-danger { color: var(--red); }
.badge-warning, .text-warning { color: var(--amber); }
.text-success { color: var(--green); }
.status-dot, .connection-dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; }
.status-online, .is-online { background: var(--green); box-shadow: 0 0 12px rgba(0,255,136,0.6); animation: pulse 2s infinite; }
.status-offline { background: var(--red); }
.status-warning { background: var(--amber); animation: pulse 1s infinite; }
.status-unknown { background: #6b7782; }
.info-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.info-list.compact { margin-top: 14px; }
.info-list dt { color: var(--muted); }
.info-list dd { margin: 4px 0 0; }
.chart-grid, .detail-grid, .requirements-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.chart-card { min-height: 260px; }
.terminal-feed { background: #02070b; border: 1px solid var(--border); padding: 16px; max-height: 260px; overflow: auto; color: var(--green); }
.compact-terminal { max-height: none; }
.form-grid, .filter-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.filter-grid { grid-template-columns: repeat(7, minmax(0, 1fr)); margin-bottom: 18px; }
.full-width { grid-column: 1 / -1; }
label span { display: block; margin-bottom: 8px; color: var(--muted); }
input, select, textarea { width: 100%; padding: 12px; background: rgba(5, 10, 14, 0.9); border: 1px solid var(--border); }
textarea { resize: vertical; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px; border-bottom: 1px solid rgba(13,33,55,0.7); text-align: left; white-space: nowrap; }
.kanban-board { display: grid; grid-template-columns: repeat(4, minmax(250px, 1fr)); gap: 16px; overflow-x: auto; }
.kanban-column { min-height: 440px; background: rgba(9, 17, 26, 0.7); border: 1px solid var(--border); }
.kanban-header { padding: 14px; border-bottom: 1px solid var(--border); text-transform: uppercase; color: var(--cyan); }
.kanban-dropzone { padding: 14px; min-height: 380px; }
.task-card { padding: 14px; background: rgba(10, 21, 32, 0.8); border: 1px solid var(--border); margin-bottom: 12px; cursor: grab; }
.task-card.is-overdue { border-color: var(--amber); box-shadow: 0 0 12px rgba(255,170,0,0.18); }
.timeline { display: grid; gap: 16px; }
.timeline-item { display: flex; justify-content: space-between; gap: 16px; padding: 18px; border: 1px solid var(--border); background: rgba(9,17,26,0.7); }
.timeline-item.is-open { border-color: var(--red); }
.metric-row { display: flex; justify-content: space-between; gap: 14px; align-items: center; padding: 12px 0; border-bottom: 1px solid rgba(13,33,55,0.7); }
.mini-metrics { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.inset-panel { background: rgba(9, 17, 26, 0.72); }
.download-card { display: grid; gap: 14px; }
.command-block { display: grid; gap: 6px; }
.command-block code { display: block; padding: 12px; border: 1px solid var(--border); background: rgba(2, 7, 11, 0.95); color: var(--green); white-space: pre-wrap; word-break: break-all; }
.download-links { justify-content: flex-start; }
.footer-bar { margin-top: 22px; }
.flash { margin-bottom: 16px; border-left: 3px solid var(--cyan); }
.flash.error { border-left-color: var(--red); }
.flash.success { border-left-color: var(--green); }
.boot-overlay {
    position: fixed; inset: 0; z-index: 20; display: grid; place-items: center;
    background: rgba(2, 6, 10, 0.96);
}
.boot-overlay.hidden { opacity: 0; visibility: hidden; transition: 0.4s ease; }
.boot-terminal, .installer-shell { width: min(960px, calc(100% - 40px)); }
.boot-terminal, .installer-shell, .login-shell { background: rgba(5,10,14,0.98); border: 1px solid var(--cyan); box-shadow: 0 0 22px rgba(0,212,255,0.22); padding: 24px; }
.installer-page { display: grid; place-items: center; padding: 32px; }
.toggle-row { display: flex; align-items: center; gap: 10px; }
.toggle-row input { width: auto; }
.cursor { display: inline-block; width: 10px; height: 1.2em; margin-left: 8px; background: var(--cyan); animation: blink 1s step-end infinite; vertical-align: middle; }

@keyframes pulse { 50% { box-shadow: 0 0 16px currentColor; opacity: 0.75; } }
@keyframes blink { 50% { opacity: 0; } }

@media (max-width: 1180px) {
    .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .dashboard-grid, .layout { grid-template-columns: 1fr; }
    .sidebar { position: fixed; left: -320px; width: 280px; z-index: 5; transition: 0.3s ease; }
    .sidebar.open { left: 0; }
    .nav-toggle { display: inline-flex; margin-bottom: 18px; }
    .filter-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
    .main-content, .sidebar { padding: 16px; }
    .stats-grid, .form-grid, .filter-grid, .detail-grid, .requirements-grid, .telemetry-strip, .split-grid { grid-template-columns: 1fr; }
    .topbar, .footer-bar, .timeline-item { flex-direction: column; }
    .metric-row { flex-direction: column; align-items: flex-start; }
    .kanban-board { grid-template-columns: repeat(4, 280px); }
}