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

:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-input: #252836;
    --border: #2e3347;
    --text: #e4e4e7;
    --text-muted: #8b8fa3;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --green: #22c55e;
    --green-bg: rgba(34,197,94,.12);
    --yellow: #eab308;
    --yellow-bg: rgba(234,179,8,.12);
    --red: #ef4444;
    --red-bg: rgba(239,68,68,.12);
    --blue: #3b82f6;
    --sidebar-w: 240px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* === Sidebar === */
.sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: var(--sidebar-w);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: 24px 20px 16px;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    padding: 12px 0;
    flex: 1;
}

.nav-links li a {
    display: block;
    padding: 10px 20px;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    transition: all .15s;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--text);
    background: rgba(99,102,241,.08);
    border-right: 3px solid var(--primary);
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
}

.user-badge { color: var(--text-muted); }
.logout-link { color: var(--red); font-size: 12px; }

/* === Main Content === */
main.with-sidebar {
    margin-left: var(--sidebar-w);
    padding: 32px 40px;
    max-width: 1200px;
}

main:not(.with-sidebar) {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

/* === Page Header === */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h1 { font-size: 24px; font-weight: 700; }

.back-link {
    font-size: 13px;
    color: var(--text-muted);
    margin-right: 16px;
}

.auto-refresh {
    font-size: 12px;
    color: var(--green);
    cursor: pointer;
}

/* === Stats === */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.stat-number { font-size: 32px; font-weight: 700; }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }
.stat-online .stat-number { color: var(--green); }
.stat-outdated .stat-number { color: var(--yellow); }
.stat-offline .stat-number { color: var(--red); }

/* === Filter Tabs === */
.filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.tab {
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: all .15s;
}

.tab:hover, .tab.active {
    color: var(--text);
    border-color: var(--primary);
    background: rgba(99,102,241,.08);
}

/* === Tables === */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow-x: auto;
    margin-bottom: 32px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: rgba(255,255,255,.02); }

.monospace { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 12px; }
.timestamp { font-size: 13px; color: var(--text-muted); }
.empty-state { text-align: center; color: var(--text-muted); padding: 40px 16px !important; }

/* === Badges === */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-online { background: var(--green-bg); color: var(--green); }
.status-outdated { background: var(--yellow-bg); color: var(--yellow); }
.status-offline { background: var(--red-bg); color: var(--red); }

.product-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .5px;
}

.product-ariops { background: rgba(59,130,246,.15); color: var(--blue); }
.product-arichat { background: rgba(168,85,247,.15); color: #a855f7; }

.version-hint { font-size: 11px; color: var(--yellow); margin-left: 4px; }

.badge-active { color: var(--green); font-weight: 600; font-size: 12px; }
.badge-inactive { color: var(--red); font-weight: 600; font-size: 12px; }

.alert-type {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.alert-type-offline { background: var(--red-bg); color: var(--red); }
.alert-type-outdated { background: var(--yellow-bg); color: var(--yellow); }
.alert-type-new_deployment { background: var(--green-bg); color: var(--green); }
.alert-type-duplicate_machine { background: rgba(249,115,22,.12); color: #f97316; }

.alert-message {
    max-width: 300px;
    white-space: pre-line;
    font-size: 12px;
}

/* === Forms === */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
    transition: border-color .15s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.form-help { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-inline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    align-items: end;
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    background: var(--bg-input);
    color: var(--text);
    transition: all .15s;
}

.btn:hover { border-color: var(--primary); color: var(--primary); }

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.btn-primary:hover { background: var(--primary-hover); color: #fff; }

.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-full { width: 100%; text-align: center; }

.btn-danger { color: var(--red); border-color: var(--red); background: transparent; }
.btn-danger:hover { background: var(--red-bg); }
.btn-success { color: var(--green); border-color: var(--green); background: transparent; }
.btn-success:hover { background: var(--green-bg); }

/* === Cards === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    margin-bottom: 24px;
}

.card-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.section-title { font-size: 16px; font-weight: 600; margin: 24px 0 12px; }

/* === Login === */
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 40px;
}

.login-card h1 {
    text-align: center;
    font-size: 24px;
    background: linear-gradient(135deg, var(--primary), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.login-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 28px;
}

/* === Alerts === */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 20px;
}

.alert-error { background: var(--red-bg); color: var(--red); border: 1px solid rgba(239,68,68,.25); }
.alert-success { background: var(--green-bg); color: var(--green); border: 1px solid rgba(34,197,94,.25); }

/* === Responsive === */
@media (max-width: 768px) {
    .sidebar { display: none; }
    main.with-sidebar { margin-left: 0; padding: 20px 16px; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .form-inline { grid-template-columns: 1fr; }
}