/* Custom CSS Variables for Dark/Light theme */
:root {
    --bg-base: #0f172a;
    --bg-surface: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.1);
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-base);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 3D Canvas Background */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: auto;
}

/* Utility Classes */
.glass-card {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}

.glass-header {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

/* Login Page */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
}
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}
.login-header {
    text-align: center;
    margin-bottom: 24px;
}
.login-header h2 { margin-bottom: 8px; }
.login-header p { color: var(--text-muted); font-size: 14px; }

/* Forms */
.form-group {
    margin-bottom: 16px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
}
.form-group input, .form-group select {
    width: 100%;
    padding: 10px 12px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-main);
    font-family: inherit;
    font-size: 14px;
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Buttons */
button {
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    border-radius: 6px;
    padding: 10px 16px;
    font-size: 14px;
    transition: all 0.2s;
    border: none;
}
.btn-primary {
    background: var(--primary);
    color: white;
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}
.btn-secondary:hover { background: rgba(255,255,255,0.1); }
.full-width { width: 100%; }

/* Dashboard Wrapper */
.dashboard-wrapper {
    position: relative;
    z-index: 1; /* Above canvas */
    pointer-events: none; /* Let canvas capture mouse if empty */
}
.dashboard-wrapper > * {
    pointer-events: auto; /* Re-enable pointer events for UI */
}

.dashboard-content {
    padding: 32px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}
.metric-card h3 {
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 12px;
}
.metric-value {
    font-size: 32px;
    font-weight: 700;
}

/* Data Table Section */
.data-section {
    margin-bottom: 32px;
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}
.actions {
    display: flex;
    gap: 12px;
}
.search-input, .status-filter {
    padding: 8px 12px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-main);
}

.table-responsive {
    overflow-x: auto;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}
.data-table th, .data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}
.data-table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.data-table tbody tr:hover {
    background: rgba(255,255,255,0.05);
}

/* Status Badges */
.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}
.badge-success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: #fbbf24; }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.badge-neutral { background: rgba(148, 163, 184, 0.2); color: #cbd5e1; }

/* Alert Banner */
.alert-banner {
    background: rgba(245, 158, 11, 0.9);
    color: #fff;
    padding: 12px 32px;
    text-align: center;
    font-weight: 500;
    position: relative;
    z-index: 10;
}
.alert-banner a {
    color: #fff;
    text-decoration: underline;
    margin-left: 10px;
    cursor: pointer;
}

/* Modal */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 20px;
}
.modal.hidden { display: none; }
.modal-content {
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.close-btn {
    font-size: 24px;
    cursor: pointer;
    color: var(--text-muted);
}
.close-btn:hover { color: var(--text-main); }
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 600px) {
    .form-grid { grid-template-columns: 1fr; }
}
.form-actions {
    margin-top: 24px;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}
.error-message {
    color: var(--danger);
    margin-top: 12px;
    font-size: 14px;
    text-align: center;
}

/* Tooltip for 3D Nodes */
.tooltip {
    position: absolute;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--border-color);
    padding: 10px;
    border-radius: 6px;
    pointer-events: none;
    z-index: 50;
    font-size: 13px;
    transform: translate(-50%, -100%);
    margin-top: -10px;
    color: white;
}
.tooltip.hidden { display: none; }