/* ===============================================================
   PEB Digital Twin Dashboard — Enterprise twin management
   Sprint A6 — digital_twin_engine (simulation, state, reconcile)
   =============================================================== */

/* Layout */
.peb-twin { padding: 1.25rem; display: flex; flex-direction: column; gap: 1rem; min-height: 60vh; }

/* Header */
.peb-twin__header {
    display: flex; align-items: flex-start; justify-content: space-between;
    flex-wrap: wrap; gap: 0.75rem;
}
.peb-twin__header h2 { margin: 0; font-size: 1.35rem; }
.peb-twin__subtitle { display: block; font-size: 0.78rem; opacity: 0.6; margin-top: 0.15rem; }
.peb-twin__header-actions { display: flex; gap: 0.5rem; }

/* Twin cards grid */
.peb-twin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0.85rem; }

/* Twin card */
.peb-twin-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 10px;
    padding: 1rem;
    display: flex; flex-direction: column; gap: 0.5rem;
    transition: transform 0.15s ease, border-color 0.2s ease;
    cursor: pointer;
}
.peb-twin-card:hover { transform: translateY(-2px); border-color: rgba(255,255,255,0.14); }
.peb-twin-card--selected { border-color: var(--accent-primary, var(--ld-400)); }

.peb-twin-header { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.peb-twin-id { font-weight: 600; font-size: 0.9rem; font-family: 'JetBrains Mono', monospace; }

/* Drift indicator */
.peb-twin-drift { font-size: 0.72rem; font-weight: 700; padding: 0.12rem 0.5rem; border-radius: 9999px; }
.peb-drift--low { background: rgba(16,185,129,0.12); color: var(--emerald-400); }
.peb-drift--medium { background: rgba(245,158,11,0.12); color: var(--yellow-400); }
.peb-drift--high { background: rgba(233,116,81,0.15); color: var(--red-400); }

.peb-twin-meta { font-size: 0.8rem; color: var(--text-secondary, var(--slate-400)); display: flex; justify-content: space-between; gap: 0.5rem; }

/* Sync status indicator */
.peb-twin__sync-status {
    display: flex; align-items: center; gap: 0.4rem;
    font-size: 0.75rem; padding: 0.2rem 0.5rem;
    background: rgba(255,255,255,0.03); border-radius: 4px;
}
.peb-twin__sync-dot {
    width: 6px; height: 6px; border-radius: 50%;
}
.peb-twin__sync-dot--synced { background: var(--color-success); }
.peb-twin__sync-dot--drifting { background: var(--yellow-500); }
.peb-twin__sync-dot--error { background: var(--red-500); }

/* Health overlay */
.peb-twin__health-bar {
    height: 4px; background: rgba(255,255,255,0.06);
    border-radius: 2px; overflow: hidden; margin-top: 0.25rem;
}
.peb-twin__health-fill { height: 100%; border-radius: 2px; transition: width 0.4s ease; }

/* Actions */
.peb-twin-actions { display: flex; gap: 0.5rem; margin-top: 0.25rem; }

/* State viewer / JSON */
.peb-state-json {
    background: rgba(0,0,0,0.3); padding: 0.85rem; border-radius: 6px;
    font-family: 'JetBrains Mono', monospace; font-size: 0.78rem;
    overflow-x: auto; max-height: 300px; border: 1px solid rgba(255,255,255,0.06);
    line-height: 1.5;
}

/* State diff viewer (before/after columns) */
.peb-twin__diff {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem;
}
.peb-twin__diff-panel {
    background: rgba(0,0,0,0.25); border: 1px solid rgba(255,255,255,0.06);
    border-radius: 8px; padding: 0.75rem; max-height: 320px; overflow-y: auto;
}
.peb-twin__diff-label {
    font-size: 0.72rem; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.04em; margin-bottom: 0.4rem; display: block;
}
.peb-twin__diff-label--current { color: var(--blue-400); }
.peb-twin__diff-label--simulated { color: var(--emerald-400); }
.peb-twin__diff-change {
    padding: 0.25rem 0.4rem; margin-bottom: 0.2rem; border-radius: 3px;
    font-size: 0.78rem; font-family: 'JetBrains Mono', monospace;
}
.peb-twin__diff-change--added { background: rgba(16,185,129,0.1); color: var(--emerald-400); }
.peb-twin__diff-change--removed { background: rgba(233,116,81,0.1); color: var(--red-400); }
.peb-twin__diff-change--modified { background: rgba(245,158,11,0.1); color: var(--yellow-400); }

/* Simulation controls panel */
.peb-twin__sim-controls {
    display: flex; flex-direction: column; gap: 0.85rem;
    padding: 1rem; background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06); border-radius: 10px;
}
.peb-twin__sim-header {
    display: flex; align-items: center; justify-content: space-between;
    gap: 0.5rem; flex-wrap: wrap;
}
.peb-twin__sim-header h4 { margin: 0; font-size: 0.95rem; }

/* Parameter sliders */
.peb-twin__param-row {
    display: flex; align-items: center; gap: 0.75rem;
}
.peb-twin__param-label {
    min-width: 120px; font-size: 0.82rem;
    color: var(--text-secondary, var(--slate-400));
}
.peb-twin__param-slider {
    flex: 1; height: 4px; -webkit-appearance: none;
    appearance: none; background: rgba(255,255,255,0.08);
    border-radius: 2px; outline: none;
}
.peb-twin__param-slider::-webkit-slider-thumb {
    -webkit-appearance: none; width: 14px; height: 14px;
    border-radius: 50%; background: var(--accent-primary, var(--ld-400));
    cursor: pointer;
}
.peb-twin__param-value {
    min-width: 48px; text-align: right; font-size: 0.82rem;
    font-weight: 600; font-variant-numeric: tabular-nums;
}

/* Scenario cards */
.peb-twin__scenario-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 0.75rem;
}
.peb-twin__scenario-card {
    background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.07);
    border-radius: 8px; padding: 0.85rem;
    transition: border-color 0.15s;
}
.peb-twin__scenario-card:hover { border-color: rgba(255,255,255,0.14); }
.peb-twin__scenario-name { font-weight: 600; font-size: 0.88rem; margin-bottom: 0.3rem; }
.peb-twin__scenario-desc { font-size: 0.78rem; color: var(--text-secondary, var(--slate-400)); margin-bottom: 0.5rem; }
.peb-twin__scenario-status { font-size: 0.72rem; }

/* Reconciliation log table */
.peb-twin__recon-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
.peb-twin__recon-table th {
    text-align: left; padding: 0.55rem 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    color: var(--text-secondary, var(--slate-400)); font-weight: 600;
    font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.03em;
}
.peb-twin__recon-table td { padding: 0.5rem 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.04); }
.peb-twin__recon-table tbody tr:hover { background: rgba(255,255,255,0.03); }

/* Recon status badges */
.peb-twin__recon-badge { font-size: 0.7rem; font-weight: 600; padding: 0.1rem 0.4rem; border-radius: 4px; }
.peb-twin__recon-badge--success { background: rgba(16,185,129,0.12); color: var(--emerald-400); }
.peb-twin__recon-badge--partial { background: rgba(245,158,11,0.12); color: var(--yellow-400); }
.peb-twin__recon-badge--failed { background: rgba(233,116,81,0.15); color: var(--red-400); }

/* 3D container placeholder */
.peb-twin__3d-container {
    background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px; min-height: 300px;
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}
.peb-twin__3d-placeholder {
    text-align: center; opacity: 0.3;
}
.peb-twin__3d-placeholder-icon { font-size: 3rem; margin-bottom: 0.5rem; }

/* History viewer */
.peb-twin__history { display: flex; flex-direction: column; gap: 0.3rem; max-height: 300px; overflow-y: auto; }
.peb-twin__history-item {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.5rem 0.65rem; background: rgba(255,255,255,0.02); border-radius: 4px;
    font-size: 0.82rem;
}
.peb-twin__history-ts { font-size: 0.72rem; opacity: 0.5; white-space: nowrap; }
.peb-twin__history-event { flex: 1; font-weight: 500; }
.peb-twin__history-delta { font-size: 0.75rem; font-family: 'JetBrains Mono', monospace; }

/* Responsive */
@media (max-width: 768px) {
    .peb-twin-grid { grid-template-columns: 1fr; }
    .peb-twin__diff { grid-template-columns: 1fr; }
    .peb-twin__scenario-grid { grid-template-columns: 1fr; }
    .peb-twin__param-row { flex-wrap: wrap; }
    .peb-twin__param-label { min-width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
    .peb-twin-card,
    .peb-twin__scenario-card { transition: none; }
    .peb-twin__health-fill { transition: none; }
}