:root {
    --neptune-bg: #0a0e1a;
    --neptune-card: #131a2b;
    --neptune-border: #1e2a45;
    --neptune-accent: #3b82f6;
}

body {
    background-color: var(--neptune-bg);
    color: #e2e8f0;
    font-size: .9rem;
}

.navbar {
    background: linear-gradient(135deg, #0a0e1a 0%, #121828 100%) !important;
}

.card, .modal-content, .list-group-item {
    background-color: var(--neptune-card);
    border-color: var(--neptune-border);
}

.form-control, .form-select {
    background-color: #0d1117;
    border-color: var(--neptune-border);
    color: #e2e8f0;
}

.form-control:focus, .form-select:focus {
    background-color: #0d1117;
    border-color: var(--neptune-accent);
    color: #e2e8f0;
    box-shadow: 0 0 0 .2rem rgba(59,130,246,.15);
}

.btn-primary {
    background-color: var(--neptune-accent);
    border-color: var(--neptune-accent);
}

.btn-primary:hover {
    background-color: #2563eb;
    border-color: #2563eb;
}

/* Timeline */
.timeline-item {
    position: relative;
    padding-left: 1.6rem;
    margin-bottom: 1rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: .5rem;
    top: 0;
    bottom: -1.5rem;
    width: 2px;
    background: var(--neptune-border);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-dot {
    position: absolute;
    left: .15rem;
    top: .45rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid;
    background: var(--neptune-card);
    z-index: 1;
}

.severity-critical { border-color: #ef4444; color: #ef4444; }
.severity-high { border-color: #f97316; color: #f97316; }
.severity-medium { border-color: #eab308; color: #eab308; }
.severity-low { border-color: #22c55e; color: #22c55e; }
.severity-info { border-color: #3b82f6; color: #3b82f6; }

.timeline-card {
    border-left: 3px solid var(--neptune-accent);
    transition: border-color .2s;
}

.timeline-card:hover {
    border-left-color: #60a5fa;
}

.severity-badge {
    font-size: .65rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.comment-box {
    background: #0d1117;
    border-radius: .375rem;
    padding: .35rem .6rem;
    margin-top: .3rem;
}

.comment-box .comment-author {
    color: var(--neptune-accent);
    font-weight: 600;
    font-size: .8rem;
}

.comment-box .comment-body {
    font-size: .8rem;
    margin-top: .05rem;
}

.comment-box + .comment-box {
    border-top: 1px solid var(--neptune-border);
    padding-top: .3rem;
}

.comment-log {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: .25rem;
}

/* Network Map */
#networkCanvas {
    cursor: grab;
}

#networkCanvas:active {
    cursor: grabbing;
}

.node-list-item i {
    width: 1rem;
    text-align: center;
}

.nav-pills .nav-link {
    color: #94a3b8;
}

.nav-pills .nav-link.active {
    background: var(--neptune-accent);
    color: #fff;
}

kbd {
    border: 1px solid var(--neptune-border);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: .7rem;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--neptune-bg); }
::-webkit-scrollbar-thumb { background: var(--neptune-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #2a3a60; }

/* Nav tabs in navbar */
.nav-tabs .nav-link {
    color: #94a3b8;
    border: none;
    padding: .5rem 1rem;
}

.nav-tabs .nav-link.active {
    color: #fff;
    background: transparent;
    border-bottom: 2px solid var(--neptune-accent);
}

.nav-tabs .nav-link:hover {
    color: #fff;
    border-bottom: 2px solid transparent;
}

/* Node list items */
.node-list-item {
    cursor: pointer;
    transition: background .15s;
    border-left: 3px solid transparent;
}

.node-list-item:hover {
    background: rgba(59,130,246,.1);
}

.node-list-item.active {
    border-left-color: var(--neptune-accent);
    background: rgba(59,130,246,.15);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: .4rem;
}

.status-online { background: #22c55e; }
.status-offline { background: #6b7280; }
.status-unknown { background: #9ca3af; }
.status-compromised { background: #ef4444; animation: pulse 1.5s infinite; }
.status-monitoring { background: #eab308; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .4; }
}

.event-meta {
    font-size: .7rem;
    color: #64748b;
    white-space: nowrap;
}

.event-title {
    color: #f1f5f9;
    font-size: .9rem;
}

.comment-input-group .btn {
    border-color: var(--neptune-border);
    color: var(--neptune-accent);
}

.comment-input-group .btn:hover {
    background: var(--neptune-accent);
    color: #fff;
}

/* Document Cards */
.doc-card {
    transition: border-color .2s, transform .15s;
}

.doc-card:hover {
    border-color: var(--neptune-accent);
    transform: translateY(-2px);
}

.doc-card .card-header {
    background: rgba(59,130,246,.05);
}

.doc-card .card-footer {
    background: transparent;
}

.doc-card .badge {
    font-size: .65rem;
    text-transform: uppercase;
    letter-spacing: .03em;
}

/* Attachments */
.attachments-list {
    border-top: 1px solid var(--neptune-border);
    padding-top: .35rem;
    margin-top: .35rem;
}

.attachment-item {
    border-bottom: 1px solid rgba(30, 42, 69, 0.5);
}

.attachment-item:last-child {
    border-bottom: none;
}

.attachment-item a {
    color: var(--neptune-accent);
}

.attachment-item a:hover {
    color: #60a5fa;
    text-decoration: underline !important;
}

/* File Viewer */
#fileViewerModal .modal-content {
    border-color: var(--neptune-border);
}

#fileViewerBody pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
}