/* ─── design tokens ─────────────────────────────────────────────────────── */
:root {
  --bg:          #071018;
  --panel:       rgba(10, 18, 28, 0.94);
  --panel-soft:  rgba(14, 25, 38, 0.80);
  --line:        rgba(149, 172, 196, 0.16);
  --line-strong: rgba(149, 172, 196, 0.32);
  --ink:         #edf5fc;
  --ink-soft:    #8ca2b8;
  --accent:      #7dd0ff;
  --accent-2:    #cadc73;
  --danger:      #ff9584;
  --radius:      18px;
  --radius-sm:   12px;
  --shell-pad:   12px;
  --rail-w:      80px;
  --sidebar-w:   460px;
  --shadow:      0 24px 64px rgba(0, 0, 0, 0.45);
  --dur:         180ms;
  --ease:        cubic-bezier(0.22, 1, 0.36, 1);
}

/* ─── reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }

body {
  font-family: "Segoe UI", Inter, system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  background:
    radial-gradient(ellipse at 0% 0%, rgba(125, 208, 255, 0.10) 0%, transparent 42%),
    radial-gradient(ellipse at 100% 100%, rgba(202, 220, 115, 0.07) 0%, transparent 38%),
    var(--bg);
  overflow: hidden;
}

h1, h2, h3, p { margin: 0; }
h1 { font-size: 1.4rem;  font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: 0.92rem; font-weight: 600; letter-spacing: 0.01em; }
h3 { font-size: 0.82rem; font-weight: 600; }

/* ─── base controls ──────────────────────────────────────────────────────── */
button, input, select, textarea { font: inherit; color: inherit; }

button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 0.58rem 0.8rem;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
button:hover { border-color: var(--line-strong); background: rgba(255,255,255,0.09); }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.ghost { background: transparent; }
button.danger { color: var(--danger); border-color: rgba(255,149,132,0.32); }

input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  padding: 0.62rem 0.72rem;
  transition: border-color var(--dur);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: rgba(125,208,255,0.5);
}
textarea { resize: vertical; }

label {
  display: grid;
  gap: 0.28rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

/* ─── typography helpers ─────────────────────────────────────────────────── */
.muted { color: var(--ink-soft); font-size: 0.84rem; line-height: 1.55; }

.eyebrow, .workspace-brand__eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--accent);
}

/* ─── workspace shell ────────────────────────────────────────────────────── */
.workspace-shell {
  height: 100vh;
  display: grid;
  grid-template-columns: var(--rail-w) minmax(320px, min(42vw, var(--sidebar-w))) minmax(0, 1fr);
  gap: var(--shell-pad);
  padding: var(--shell-pad);
  overflow: hidden;
}

/* ─── rail ───────────────────────────────────────────────────────────────── */
.workspace-rail {
  display: grid;
  grid-auto-rows: min-content;
  gap: 8px;
  align-content: start;
  padding: 12px 10px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(6, 11, 18, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  z-index: 4;
}

.workspace-brand {
  display: grid;
  gap: 1px;
  padding: 6px 4px 10px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
  text-align: center;
}

.workspace-brand strong {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rail-btn {
  min-height: 52px;
  border-radius: 14px;
  background: transparent;
  border: 1px solid transparent;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: relative;
}

.rail-btn.is-active {
  border-color: rgba(125,208,255,0.36);
  background: rgba(125,208,255,0.10);
  color: var(--accent);
}

/* ─── side panel ─────────────────────────────────────────────────────────── */
.side-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(8, 14, 22, 0.90);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow);
  overflow: hidden;
  z-index: 4;
  will-change: transform;
}

.side-panel__header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  flex-shrink: 0;
}

.side-panel__close {
  display: none;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 50%;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.side-panel__modes {
  display: none;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  flex-shrink: 0;
}

.side-panel__modes .rail-btn { min-height: 40px; }

/* ─── export actions ─────────────────────────────────────────────────────── */
.header-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  flex-shrink: 0;
}

/* ─── mode panels ────────────────────────────────────────────────────────── */
.mode-panel {
  display: none;
  flex-direction: column;
  gap: 10px;
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  padding-right: 4px;
  scroll-padding-top: 8px;
}

.mode-panel.is-active { display: flex; }

/* custom scrollbar */
.mode-panel::-webkit-scrollbar { width: 5px; }
.mode-panel::-webkit-scrollbar-track { background: transparent; }
.mode-panel::-webkit-scrollbar-thumb {
  background: rgba(149,172,196,0.22);
  border-radius: 99px;
}
.mode-panel::-webkit-scrollbar-thumb:hover { background: rgba(149,172,196,0.40); }

/* ─── panel card ─────────────────────────────────────────────────────────── */
.panel-card {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  flex-shrink: 0;
}

.panel-card__head { display: flex; flex-direction: column; gap: 0.2rem; }

/* ─── control grid ───────────────────────────────────────────────────────── */
.control-grid, .form-grid, .metric-grid { display: grid; gap: 0.65rem; }
.form-grid.two-col, .filters-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.search-wrap { display: grid; gap: 0.28rem; }

.control-field {
  display: grid;
  gap: 0.3rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.control-inline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 58px;
  gap: 0.6rem;
  align-items: center;
}

.control-inline input[type="range"] { accent-color: var(--accent); }
.control-inline strong {
  text-align: right;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
  padding-top: 0.2rem;
}

/* ─── metrics ────────────────────────────────────────────────────────────── */
.metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.metric-chip {
  padding: 0.75rem;
  display: grid;
  gap: 0.14rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.03);
}

.metric-chip__label {
  font-size: 0.68rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.metric-chip strong {
  font-size: 1.05rem;
  color: var(--accent-2);
  font-variant-numeric: tabular-nums;
}

.builder-narrative {
  padding: 0.72rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
  font-size: 0.82rem;
}

/* ─── scenario list ──────────────────────────────────────────────────────── */
.scenario-list { display: flex; flex-direction: column; gap: 8px; }

.scenario-card {
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.42rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.03);
  cursor: pointer;
  transition: border-color var(--dur), background var(--dur);
}

.scenario-card:hover { border-color: var(--line-strong); background: rgba(255,255,255,0.06); }

.scenario-card.is-selected {
  border-color: rgba(125,208,255,0.38);
  background: rgba(125,208,255,0.08);
}

.scenario-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.scenario-card__name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink);
}

.scenario-card__meta {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  align-items: center;
}

.scenario-card__meta span {
  padding: 0.2rem 0.46rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.7rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* ─── data viz ───────────────────────────────────────────────────────────── */
.viz-box {
  height: 250px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: rgba(255,255,255,0.02);
}

.viz-box--map { height: 230px; }

/* ─── table ──────────────────────────────────────────────────────────────── */
.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  max-height: 320px;
}

.table-wrap::-webkit-scrollbar { width: 5px; height: 5px; }
.table-wrap::-webkit-scrollbar-thumb { background: rgba(149,172,196,0.22); border-radius: 99px; }

table { width: 100%; min-width: 860px; border-collapse: collapse; }
th, td {
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 0.42rem 0.48rem;
  text-align: left;
  vertical-align: top;
  font-size: 0.78rem;
}
th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(8,14,22,0.99);
  font-weight: 600;
  color: var(--ink-soft);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
th.sortable { cursor: pointer; user-select: none; }
th.sortable::after { content: ""; margin-left: 0.3rem; }
th.sortable[data-sort-direction="asc"]::after  { content: "↑"; font-size: 0.62rem; color: var(--accent); }
th.sortable[data-sort-direction="desc"]::after { content: "↓"; font-size: 0.62rem; color: var(--accent); }

.cell-input {
  width: 100%;
  padding: 0.3rem 0.38rem;
  border-radius: 8px;
  font-size: 0.76rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  color: var(--ink);
}

tr.is-selected { background: rgba(125,208,255,0.07); }
.row-actions { display: flex; gap: 0.35rem; }

/* ─── detail card ────────────────────────────────────────────────────────── */
.detail-card dl {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 0.38rem 0.6rem;
  margin-top: 0.55rem;
}
.detail-card dt { color: var(--ink-soft); font-size: 0.78rem; }
.detail-card dd { margin: 0; font-size: 0.83rem; }

/* ─── compare summary ────────────────────────────────────────────────────── */
.compare-summary {
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.02);
}

/* ─── workspace main (iframe area) ──────────────────────────────────────── */
.workspace-main {
  position: relative;
  height: 100%;
  min-width: 0;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.workspace-stage { position: absolute; inset: 0; }
.simulator-frame { width: 100%; height: 100%; border: 0; display: block; }

/* ─── MapLibre sim map ───────────────────────────────────────────────────── */
#simMap {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: pan-x pan-y pinch-zoom;
}
.maplibregl-ctrl-bottom-right,
.maplibregl-ctrl-bottom-left { display: none !important; }
.maplibregl-ctrl-top-right { display: none !important; }

/* ─── Live HUD overlay (top-right corner of map) ────────────────────────── */
.sim-hud {
  position: absolute;
  top: 16px;
  right: 16px;
  /* Log is also right-anchored below this; HUD sits at top-right */
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(4, 9, 16, 0.80);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  pointer-events: none;
  min-width: 130px;
}
.sim-hud__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.sim-hud__label {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}
.sim-hud__val {
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent-2);
}
.sim-hud__link { color: var(--accent); }
.sim-hud__link.is-degraded { color: #f5a623; }
.sim-hud__link.is-critical { color: var(--danger); }
.sim-hud__coord { color: #b8e8ff; letter-spacing: 0.02em; }

/* ─── Real-time event log (right side of map, below HUD) ────────────────── */
.sim-log {
  position: absolute;
  right: 16px;
  top: calc(16px + 6px + 140px); /* below HUD: 16px top + HUD height ~140px */
  z-index: 5;
  width: 230px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(4, 9, 16, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
  pointer-events: none;
}
.sim-log__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px 5px;
  border-bottom: 1px solid var(--line);
}
.sim-log__title {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}
.sim-log__count {
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent-2);
  font-weight: 700;
  min-width: 16px;
  text-align: right;
}
.sim-log__body {
  max-height: 130px;
  overflow-y: auto;
  padding: 5px 0;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.12) transparent;
}
.sim-log__empty {
  font-size: 0.67rem;
  color: var(--ink-soft);
  padding: 5px 10px;
  margin: 0;
}
.sim-log__entry {
  display: flex;
  gap: 7px;
  align-items: baseline;
  padding: 3px 10px;
  font-size: 0.67rem;
  line-height: 1.4;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  animation: log-in 0.22s ease;
}
@keyframes log-in {
  from { opacity: 0; transform: translateX(-6px); }
  to   { opacity: 1; transform: translateX(0); }
}
.sim-log__time {
  color: var(--ink-soft);
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
}
.sim-log__msg { color: var(--ink); }
.sim-log__entry[data-type="wave"]  .sim-log__msg { color: #7dd0ff; }
.sim-log__entry[data-type="power"] .sim-log__msg { color: var(--danger); }
.sim-log__entry[data-type="link"]  .sim-log__msg { color: #f5a623; }
.sim-log__entry[data-type="drift"] .sim-log__msg { color: var(--accent-2); }

/* ─── color state on telemetry values ───────────────────────────────────── */
.telemetry-card strong.is-warn  { color: #f5a623; }
.telemetry-card strong.is-alert { color: var(--danger); }

/* ─── Builder live position strip ───────────────────────────────────────── */
.builder-live-pos {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  margin-top: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 245, 255, 0.04);
}
.builder-live-pos__label {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  flex: 0 0 auto;
  margin-right: 4px;
}
.builder-live-pos__coord {
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.builder-live-pos__sep {
  color: var(--ink-soft);
  font-size: 0.7rem;
}

/* ─── stage overlay (title floating on map) ──────────────────────────────── */
.stage-meta {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  padding: 0.72rem 0.92rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(4, 9, 16, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  pointer-events: none;
}

.stage-meta h2 { font-size: 0.88rem; }

/* ─── telemetry bar ──────────────────────────────────────────────────────── */
.telemetry-bar {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  pointer-events: none;
}

.telemetry-card {
  padding: 0.68rem 0.78rem;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(4, 9, 16, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.telemetry-card__label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.telemetry-card strong {
  font-size: 0.84rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent-2);
}

/* ─── floating menu (mobile open button) ────────────────────────────────── */
.floating-menu {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 9;
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  background: rgba(4, 9, 16, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  align-items: center;
  justify-content: center;
}

/* ─── responsive: medium screens ────────────────────────────────────────── */
@media (max-width: 1360px) {
  :root { --sidebar-w: 400px; }
  .telemetry-bar { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ─── responsive: collapse to overlay sidebar ────────────────────────────── */
@media (max-width: 980px) {
  .workspace-shell {
    display: block;
    position: relative;
    padding: 0;
    height: 100vh;
  }

  .workspace-rail { display: none; }

  .floating-menu { display: inline-flex; }

  .side-panel {
    position: absolute;
    z-index: 9;
    top: 10px;
    left: 10px;
    bottom: 10px;
    width: min(calc(100vw - 20px), 440px);
    transform: translateX(calc(-100% - 20px));
    transition: transform var(--dur) var(--ease);
    border-radius: 20px;
  }

  body.sidebar-open .side-panel { transform: translateX(0); }

  .side-panel__close { display: none; }
  .side-panel__modes { display: grid; }

  .stage-meta {
    top: 68px;
    left: 12px;
    right: 12px;
  }

  body.sidebar-open .stage-meta,
  body.sidebar-open .telemetry-bar {
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur);
  }

  .workspace-main { border-radius: 0; border: 0; height: 100vh; }

  .telemetry-bar {
    left: 12px;
    right: 12px;
    bottom: 12px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ─── responsive: small screens ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .form-grid.two-col,
  .filters-grid,
  .metric-grid,
  .header-actions { grid-template-columns: 1fr; }

  .telemetry-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-card dl { grid-template-columns: 1fr; }
  .side-panel { left: 0; top: 0; bottom: 0; border-radius: 0; width: min(100vw, 420px); }
}