/* DartNode Fleet — NOC/SOC theme, matching DartNode Shield's design language. */

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.375rem 0.625rem;
    border-radius: 0.375rem;
    color: #9ca3af;
    font-size: 0.8125rem;
    text-decoration: none;
    transition: background-color 0.15s, color 0.15s;
}
.nav-link:hover { background-color: #374151; color: #f3f4f6; }
.nav-link.active { background-color: #1e3a8a; color: #ffffff; }
.nav-link.nav-sub { padding-left: 2rem; font-size: 0.8125rem; }

.nav-section-header {
    display: flex; align-items: center; width: 100%;
    padding: 0.375rem 0.625rem; border-radius: 0.375rem;
    color: #d1d5db; font-size: 0.6875rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em;
    background: none; border: none; cursor: pointer;
    margin-top: 0.5rem; transition: color 0.15s;
}
.nav-section-header:hover { color: #f3f4f6; }
.nav-section-header .nav-chevron { transition: transform 0.2s ease; color: #6b7280; }
.nav-section.collapsed .nav-section-header .nav-chevron { transform: rotate(-90deg); }
.nav-section-items { overflow: hidden; max-height: 500px; transition: max-height 0.2s ease, opacity 0.15s ease; opacity: 1; }
.nav-section.collapsed .nav-section-items { max-height: 0; opacity: 0; }

/* Cards */
.noc-card { background: #161b22; border: 1px solid #21262d; border-radius: 0.5rem; overflow: hidden; }
.noc-card-header {
    padding: 0.75rem 1rem; border-bottom: 1px solid #21262d;
    display: flex; align-items: center; justify-content: space-between;
}
.sensor-card {
    background: #1c2128; border: 1px solid #21262d; border-radius: 0.5rem;
    padding: 1rem; transition: border-color 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none; display: block;
}
.sensor-card:hover { border-color: #30363d; box-shadow: 0 0 0 1px rgba(56, 139, 253, 0.1); }

/* Capacity bars */
.capacity-bar { height: 0.5rem; border-radius: 9999px; overflow: hidden; background: #21262d; display: flex; }
.capacity-segment { height: 100%; transition: width 0.4s ease; }

/* Alerts */
.alert-item {
    display: flex; align-items: flex-start; gap: 0.5rem;
    padding: 0.5rem 0.75rem; border-bottom: 1px solid #21262d;
    font-size: 0.8125rem; transition: background-color 0.15s;
}
.alert-item:hover { background: rgba(255,255,255,0.02); }
.alert-item:last-child { border-bottom: none; }
.alert-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; margin-top: 0.375rem; flex-shrink: 0; }
.alert-dot-critical { background: #f85149; }
.alert-dot-warning { background: #d29922; }
.alert-dot-info { background: #58a6ff; }

/* Pulses */
.stat-alert { animation: statPulse 2s ease-in-out infinite; }
@keyframes statPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.7; } }
.eff-pulse { animation: effPulse 1.6s ease-in-out infinite; }
@keyframes effPulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5); }
    50% { opacity: 0.55; box-shadow: 0 0 0 3px rgba(52, 211, 153, 0); }
}

/* Toasts */
.toast { animation: slideIn 0.3s ease-out, fadeOut 0.3s ease-in 4.7s forwards; cursor: pointer; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }

/* HTMX */
.htmx-indicator { opacity: 0; transition: opacity 200ms ease-in; }
.htmx-request .htmx-indicator { opacity: 1; }