:root {
  --bg: #070b13;
  --panel-bg: #111a2c;
  --panel-2: #17233b;
  --panel-border: #24334f;
  --accent: #38bdf8;
  --accent-hover: #0ea5e9;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --road: #94a3b8;
  --wood: #d97706;
  --steel: #38bdf8;
  --cable: #a855f7;
  --tension: #38bdf8;
  --compression: #ef4444;
}

* { box-sizing: border-box; margin: 0; padding: 0; user-select: none; -webkit-tap-highlight-color: transparent; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============ TOP DASHBOARD ============ */
#header {
  height: 52px;
  flex-shrink: 0;
  background: linear-gradient(180deg, #16223a 0%, var(--panel-bg) 100%);
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  gap: 14px;
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent);
  white-space: nowrap;
}
.brand .brand-mark { filter: drop-shadow(0 0 7px #38bdf877); }
.brand-name { background: linear-gradient(90deg, #7dd3fc, #38bdf8 60%, #a5f3fc); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: 0.01em; }
.brand-sub { color: var(--text-dim); font-weight: 400; font-size: 0.8rem; }

#level-pill {
  background: #0b1220;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}
#level-pill .lvl-stars { color: var(--warning); letter-spacing: 1px; font-size: 0.75rem; }
/* A chip of the level's own sky, so each level has a colour of its own */
.pill-dot {
  width: 12px; height: 12px; border-radius: 50%; flex-shrink: 0;
  background: var(--pill-sky, linear-gradient(135deg, #38bdf8, #0ea5e9));
  box-shadow: 0 0 0 2px #ffffff22, 0 0 10px var(--pill-glow, #38bdf855);
}

.meters { display: flex; gap: 14px; align-items: center; margin-left: auto; }
.meter { min-width: 178px; display: flex; align-items: center; gap: 9px; }
.meter-body { flex: 1; min-width: 0; }
.meter-ico { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: var(--text-dim); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
#meter-budget .meter-ico { stroke: #fbbf24; }
#meter-stress .meter-ico { stroke: #fb923c; }
.meter-sub { font-size: 0.6rem; color: var(--text-dim); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.meter-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 3px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.meter-label b { font-size: 0.86rem; color: var(--text); font-variant-numeric: tabular-nums; }
.meter-track {
  height: 6px;
  background: #0b1220;
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid #1e293b;
  position: relative;
}
.meter-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.25s ease, background 0.25s ease;
}
.meter-fill.warn { background: var(--warning); }
.meter-fill.bad  { background: var(--danger); }
.meter-fill.good { background: var(--success); }
#ui-stress-bar { background: linear-gradient(90deg, #22c55e, #f59e0b, #ef4444); }
/* stress bar uses a clipping mask so the gradient stays absolute */
#meter-stress .meter-track::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 0;
  width: var(--danger-zone, 0%);
  pointer-events: none;
}

/* ============ TOOLBAR ============ */
#toolbar {
  height: 58px;
  flex-shrink: 0;
  background: #101a2ef2;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  z-index: 10;
  gap: 10px;
  overflow-x: auto;
  overflow-y: hidden;
}
#toolbar::-webkit-scrollbar { height: 0; }
/* If the toolbar has to scroll sideways, the Test button stays pinned at the right edge. */
#btn-test, #btn-edit { position: sticky; right: 0; z-index: 1; }
.tool-cluster { display: flex; gap: 6px; align-items: center; flex-shrink: 0; }
.divider { width: 1px; height: 26px; background: var(--panel-border); margin: 0 4px; flex-shrink: 0; }

.btn {
  background: #1c2942;
  color: var(--text);
  border: 1px solid var(--panel-border);
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.8rem;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  transition: transform 0.1s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.btn .ico { width: 16px; height: 16px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.btn .ico.ico-fill { fill: currentColor; stroke-width: 1.2; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn:hover:not(:disabled) { background: #29395a; border-color: #3b4d73; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.35; cursor: default; }
.btn.active {
  background: #0369a1;
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 0 1px #38bdf855, 0 0 12px #38bdf833;
}
.btn kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  background: #0b1220aa;
  border: 1px solid #ffffff1a;
  border-radius: 4px;
  padding: 1px 4px;
  color: var(--text-dim);
}
.btn.active kbd { color: #dbeafe; }

.btn-primary { background: linear-gradient(180deg, #38bdf8, #0ea5e9); color: #06121f; border-color: #7dd3fc; }
.btn-primary:hover:not(:disabled) { background: linear-gradient(180deg, #7dd3fc, #38bdf8); border-color: #bae6fd; }
.btn-danger { background: linear-gradient(180deg, #ef4444, #dc2626); color: #fff; border-color: #f87171; }
.btn-danger:hover:not(:disabled) { background: linear-gradient(180deg, #f87171, #ef4444); }
.btn-ghost { background: transparent; }
/* The bridge is ready to test: the button breathes so the next step is obvious */
@keyframes readyGlow { 0%, 100% { box-shadow: 0 0 0 0 #38bdf800; } 50% { box-shadow: 0 0 0 5px #38bdf844, 0 0 22px #38bdf888; } }
.btn-primary.ready { animation: readyGlow 1.6s ease-in-out infinite; }

/* Material buttons */
.mat-btn {
  flex-direction: row;
  align-items: center;
  gap: 9px;
  padding: 6px 12px 6px 9px;
  position: relative;
  line-height: 1.25;
}
.mat-text { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; }
/* Each material's swatch is a thumbnail of how it is drawn on the bridge */
.swatch {
  width: 28px; height: 11px; border-radius: 3px; flex-shrink: 0; position: relative; overflow: hidden;
  border: 1px solid #0009; box-shadow: inset 0 1px 0 #ffffff40, 0 0 8px var(--sw-glow, transparent);
}
.mat-road .swatch  { background: linear-gradient(#6b7487, #454d5e); --sw-glow: #94a3b855; }
.mat-road .swatch::after { content: ''; position: absolute; left: 3px; right: 3px; top: 4px; height: 2px; background: repeating-linear-gradient(90deg, #facc15 0 4px, transparent 4px 7px); }
.mat-wood .swatch  { background: repeating-linear-gradient(90deg, #00000026 0 1px, transparent 1px 6px), linear-gradient(#e08a1e, #9a4a0c); --sw-glow: #d9770655; }
.mat-steel .swatch { background: radial-gradient(circle, #0b3b5c 1.2px, transparent 1.6px) 5px 50% / 9px 100% repeat-x, linear-gradient(#8bdcff, #2f9bd6 55%, #1e6fa5); --sw-glow: #38bdf855; }
.mat-cable .swatch { background: repeating-linear-gradient(115deg, #d8a8ff 0 3px, #8b2fd6 3px 6px); --sw-glow: #a855f755; }
.mat-btn small { font-size: 0.65rem; color: var(--text-dim); font-weight: 500; }
.mat-btn.active small { color: #bfdbfe; }

@keyframes nudge {
  0%,100% { transform: translateX(0); }
  20%,60% { transform: translateX(-4px); }
  40%,80% { transform: translateX(4px); }
}
.nudge { animation: nudge 0.4s ease; }

/* ============ VIEWPORT ============ */
#viewport-container {
  flex: 1;
  position: relative;
  background: #060911;
  overflow: hidden;
}
canvas { display: block; width: 100%; height: 100%; cursor: crosshair; }

/* ============ HUD CARDS ============ */
.hud-card {
  position: absolute;
  background: #0f1829e6;
  backdrop-filter: blur(10px);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  box-shadow: 0 8px 24px #00000066;
  font-size: 0.75rem;
  z-index: 5;
}
.hud-toggle {
  display: flex; align-items: center; gap: 8px; width: 100%;
  background: none; border: 0; padding: 0; font-family: inherit; cursor: pointer; text-align: left;
}
.hud-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.hud-toggle .obj-count { margin-left: auto; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.hud-toggle .obj-count.bad { color: var(--danger); }
.hud-toggle .obj-count.done { color: var(--success); }
.hud-toggle .chev { transition: transform 0.15s ease; }
#hud-objectives.collapsed .chev { transform: rotate(-90deg); }
#hud-objectives.collapsed #obj-list { display: none; }
#hud-objectives.collapsed .hud-title { margin-bottom: 0; }
.hud-title {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 700;
  margin-bottom: 7px;
}

/* Objectives checklist */
#hud-objectives {
  top: 14px;
  left: 14px;
  padding: 10px 13px;
  width: 232px;
}
.obj-item {
  display: flex;
  align-items: flex-start;
  gap: 7px;
  padding: 3px 0;
  color: var(--text-muted);
  line-height: 1.35;
}
.obj-item .tick {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border: 1.5px solid #33415a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  font-weight: 700;
  margin-top: 1px;
  color: transparent;
  transition: all 0.2s ease;
}
.obj-item.done .tick { background: var(--success); border-color: var(--success); color: #052e16; }
@keyframes tickPop { 0% { transform: scale(0.4); box-shadow: 0 0 0 0 #22c55eaa; } 55% { transform: scale(1.35); } 100% { transform: scale(1); box-shadow: 0 0 0 7px #22c55e00; } }
.obj-item.just-done .tick { animation: tickPop 0.5s cubic-bezier(0.2, 1.4, 0.4, 1); }
.obj-item.done { color: #cbd5e1; }
.obj-item.warn .tick { border-color: var(--warning); color: var(--warning); background: #f59e0b22; }
.obj-item.warn { color: #fcd34d; }
.obj-item.bad .tick { border-color: var(--danger); color: var(--danger); background: #ef444422; }
.obj-item.bad { color: #fca5a5; }

/* Legend */
#hud-legend {
  bottom: 14px;
  left: 14px;
  padding: 10px 13px;
  pointer-events: none;
  width: 214px;
}
.legend-ramp {
  height: 9px;
  border-radius: 3px;
  background: linear-gradient(90deg, #2f6f9e, #38bdf8 22%, #7c8598 50%, #f87171 78%, #ef4444);
  margin-bottom: 4px;
  border: 1px solid #ffffff14;
}
.legend-scale {
  display: flex;
  justify-content: space-between;
  font-size: 0.62rem;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.legend-note { font-size: 0.64rem; color: var(--text-dim); line-height: 1.4; }

/* Live analysis */
#hud-analysis {
  bottom: 14px;
  right: 14px;
  padding: 10px 13px;
  width: 234px;
  display: none;
}
#hud-analysis.show { display: block; }
.an-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 3px 0;
  color: var(--text-muted);
  gap: 8px;
}
.an-row b { color: var(--text); font-variant-numeric: tabular-nums; }
/* Deck sag gauge: green at rest, through amber, to red at the limit where the slab cracks */
.sag-gauge {
  position: relative; height: 9px; border-radius: 999px; margin: 3px 0 2px;
  background: linear-gradient(90deg, #22c55e 0%, #84cc16 35%, #f59e0b 65%, #ef4444 100%);
  box-shadow: inset 0 0 0 1px #0b122055;
}
.sag-fill { position: absolute; right: 0; top: 0; bottom: 0; width: 100%; border-radius: 0 999px 999px 0; background: #0b1220d9; transition: width 0.12s linear; }
.sag-mark {
  position: absolute; top: -3px; width: 3px; height: 15px; border-radius: 2px; left: 0;
  background: #fff; box-shadow: 0 0 6px #fff; transition: left 0.12s linear;
}
.sag-scale { display: flex; justify-content: space-between; font-size: 0.62rem; color: var(--text-dim); margin-bottom: 4px; }
.an-bar-track {
  height: 5px;
  background: #0b1220;
  border-radius: 999px;
  overflow: hidden;
  margin: 5px 0 8px;
  border: 1px solid #1e293b;
}
.an-bar-fill { height: 100%; width: 0%; background: var(--accent); transition: width 0.15s linear; border-radius: 999px; }
.worst-list { margin-top: 8px; border-top: 1px solid var(--panel-border); padding-top: 7px; }
.worst-row { display: flex; align-items: center; gap: 6px; padding: 2px 0; font-size: 0.7rem; }
.worst-dot { width: 7px; height: 7px; border-radius: 2px; flex-shrink: 0; }
.worst-name { flex: 1; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.worst-pct { font-variant-numeric: tabular-nums; font-weight: 700; }

/* Tooltip */
#hud-tooltip {
  position: absolute;
  background: #060b14f7;
  border: 1px solid #38bdf866;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 0.73rem;
  pointer-events: none;
  display: none;
  transform: translate(-50%, calc(-100% - 14px));
  white-space: nowrap;
  z-index: 20;
  box-shadow: 0 8px 24px #000000aa;
  line-height: 1.5;
}
#hud-tooltip .tt-head { font-weight: 700; margin-bottom: 3px; display: flex; align-items: center; gap: 6px; }
#hud-tooltip .tt-swatch { width: 9px; height: 9px; border-radius: 2px; }
#hud-tooltip .tt-row { color: var(--text-muted); }
#hud-tooltip .tt-row span { color: var(--text); font-variant-numeric: tabular-nums; }
.tt-bar { height: 5px; background: #0b1220; border-radius: 999px; overflow: hidden; margin-top: 5px; width: 150px; }
.tt-bar div { height: 100%; border-radius: 999px; }

/* ============ TOASTS ============ */
#toasts {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  z-index: 40;
  pointer-events: none;
  width: max-content;
  max-width: 76%;
}
.toast {
  background: #0f1829f2;
  backdrop-filter: blur(10px);
  border: 1px solid var(--panel-border);
  border-left: 3px solid var(--accent);
  border-radius: 9px;
  padding: 9px 15px;
  font-size: 0.79rem;
  box-shadow: 0 8px 26px #00000088;
  display: flex;
  align-items: flex-start;
  gap: 9px;
  line-height: 1.4;
  animation: toastIn 0.28s cubic-bezier(0.2, 1.2, 0.4, 1);
  max-width: 100%;
}
.toast.out { animation: toastOut 0.25s ease forwards; }
.toast .t-icon { font-size: 0.95rem; line-height: 1.2; flex-shrink: 0; }
.toast .t-text b { color: #fff; }
.toast.info    { border-left-color: var(--accent); }
.toast.good    { border-left-color: var(--success); }
.toast.warn    { border-left-color: var(--warning); }
.toast.bad     { border-left-color: var(--danger); }
.toast.coach   { border-left-color: #a855f7; }
@keyframes toastIn  { from { opacity: 0; transform: translateY(-14px) scale(0.96); } to { opacity: 1; transform: none; } }
@keyframes toastOut { to { opacity: 0; transform: translateY(-10px) scale(0.97); } }

/* Checklist can name keyboard shortcuts inline */
.obj-item kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  background: #0b1220;
  border: 1px solid var(--panel-border);
  border-radius: 3px;
  padding: 0 3px;
  color: var(--text);
}

/* ============ FIRST-RUN COACH MARKS ============ */
#coach {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
}
#coach.show { display: block; }
#coach-hole {
  position: fixed;
  border-radius: 10px;
  box-shadow: 0 0 0 9999px rgba(4, 7, 14, 0.84);
  border: 2px solid var(--accent);
  pointer-events: none;
  transition: top 0.32s cubic-bezier(0.4,0,0.2,1), left 0.32s cubic-bezier(0.4,0,0.2,1),
              width 0.32s cubic-bezier(0.4,0,0.2,1), height 0.32s cubic-bezier(0.4,0,0.2,1);
}
#coach-hole::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 10px;
  border: 2px solid var(--accent);
  animation: coachPulse 1.8s ease-out infinite;
}
@keyframes coachPulse {
  0%   { transform: scale(1);    opacity: 0.9; }
  100% { transform: scale(1.16); opacity: 0; }
}
#coach-card {
  position: fixed;
  width: 316px;
  max-width: calc(100vw - 32px);
  background: linear-gradient(180deg, #17223a, var(--panel-bg));
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 16px 18px;
  box-shadow: 0 18px 46px #000000cc;
  transition: top 0.32s cubic-bezier(0.4,0,0.2,1), left 0.32s cubic-bezier(0.4,0,0.2,1);
}
#coach-step {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 5px;
}
#coach-title { font-size: 1rem; font-weight: 700; margin-bottom: 6px; }
#coach-text { font-size: 0.81rem; color: var(--text-muted); line-height: 1.55; margin-bottom: 14px; }
#coach-text b { color: var(--text); }
.coach-actions { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.coach-dots { display: flex; gap: 5px; }
.coach-dot { width: 6px; height: 6px; border-radius: 50%; background: #33415a; }
.coach-dot.on { background: var(--accent); }

/* ============ MODALS ============ */
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 7, 14, 0.82);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
  padding: 20px;
}
.modal-backdrop.show { opacity: 1; pointer-events: auto; }
.modal-card {
  background: linear-gradient(180deg, #17223a, var(--panel-bg));
  border: 1px solid var(--panel-border);
  width: 560px;
  max-width: 100%;
  max-height: 100%;
  overflow-y: auto;
  border-radius: 14px;
  padding: 24px 26px;
  box-shadow: 0 24px 60px #000000cc, inset 0 1px 0 #ffffff0f;
  transform: translateY(12px) scale(0.98);
  transition: transform 0.24s cubic-bezier(0.2, 1, 0.4, 1);
}
.modal-backdrop.show .modal-card { transform: none; }
.modal-eyebrow {
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  font-weight: 700;
  margin-bottom: 5px;
}
.modal-title { font-size: 1.35rem; margin-bottom: 10px; color: var(--text); line-height: 1.25; }
.modal-title.win  { color: var(--success); }
.modal-title.lose { color: var(--danger); }
.modal-body { font-size: 0.87rem; color: var(--text-muted); line-height: 1.62; margin-bottom: 18px; }
.modal-body b, .modal-body strong { color: var(--text); }
.modal-tips {
  background: #0a1120;
  border-left: 3px solid var(--warning);
  border-radius: 0 8px 8px 0;
  padding: 11px 15px;
  margin: 14px 0;
  font-size: 0.82rem;
  color: #cbd5e1;
  line-height: 1.6;
}
.modal-tips b { color: var(--warning); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.modal-actions .btn { padding: 9px 16px; font-size: 0.84rem; }

/* Stat grid for debrief */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(108px, 1fr));
  gap: 9px;
  margin: 16px 0;
}
.stat-box {
  background: #0a1120;
  border: 1px solid var(--panel-border);
  border-radius: 9px;
  padding: 10px 12px;
}
.stat-box .s-label {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  margin-bottom: 4px;
  font-weight: 700;
}
.stat-box .s-value { font-size: 1.08rem; font-weight: 700; font-variant-numeric: tabular-nums; }

/* Stars */
.stars-row { display: flex; gap: 10px; margin: 6px 0 18px; }
.star-item {
  flex: 1;
  text-align: center;
  background: #0a1120;
  border: 1px solid var(--panel-border);
  border-radius: 11px;
  padding: 15px 8px 13px;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(10px);
  animation: starCardIn 0.42s cubic-bezier(0.2, 1.3, 0.4, 1) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes starCardIn { to { opacity: 1; transform: none; } }

.star-item .st-icon {
  font-size: 2.6rem;
  line-height: 1;
  display: block;
  color: #263248;
  position: relative;
  z-index: 1;
}
.star-item .st-label {
  font-size: 0.68rem;
  color: var(--text-dim);
  margin-top: 9px;
  line-height: 1.35;
  position: relative;
  z-index: 1;
}

/* --- earned --- */
.star-item.earned {
  border-color: #a16207;
  background: linear-gradient(180deg, #241a07, #14101f);
}
.star-item.earned .st-icon {
  color: #fbbf24;
  text-shadow: 0 0 18px #f59e0bcc, 0 0 42px #f59e0b66;
  animation: starPop 0.62s cubic-bezier(0.2, 1.6, 0.35, 1) backwards;
  animation-delay: calc(var(--d, 0s) + 0.12s);
}
.star-item.earned .st-label { color: #fde68a; }
@keyframes starPop {
  0%   { transform: scale(0.2) rotate(-45deg); opacity: 0; }
  55%  { transform: scale(1.35) rotate(8deg);  opacity: 1; }
  100% { transform: scale(1) rotate(0);        opacity: 1; }
}

/* Light burst behind an earned star */
.star-item.earned::before {
  content: '';
  position: absolute;
  top: 26px; left: 50%;
  width: 130px; height: 130px;
  margin: -65px 0 0 -65px;
  border-radius: 50%;
  background: radial-gradient(circle, #f59e0b55 0%, #f59e0b22 38%, transparent 68%);
  animation: starBurst 0.85s ease-out backwards;
  animation-delay: calc(var(--d, 0s) + 0.12s);
  pointer-events: none;
}
@keyframes starBurst {
  0%   { transform: scale(0.1); opacity: 0.95; }
  100% { transform: scale(1.9); opacity: 0; }
}

/* Sweep of light across the card */
.star-item.earned::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, #fde68a3d 48%, transparent 66%);
  transform: translateX(-120%);
  animation: starSweep 0.9s ease-out backwards;
  animation-delay: calc(var(--d, 0s) + 0.2s);
  pointer-events: none;
}
@keyframes starSweep { to { transform: translateX(120%); } }

/* --- not earned --- */
.star-item.missed { opacity: 0.62; }
.star-item.missed .st-icon { color: #2c3a54; }

/* Headline tally above the cards */
.star-tally {
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.star-tally b { color: var(--warning); font-size: 0.95rem; letter-spacing: 0; }

/* Level artwork: each level's world as a little picture */
.level-art { display: block; width: 100%; height: 100%; }
.brief-art {
  position: relative; height: 112px; margin: 2px 0 14px; border-radius: 11px; overflow: hidden;
  border: 1px solid var(--panel-border); box-shadow: 0 8px 22px #00000066, inset 0 0 0 1px #ffffff10;
}
.brief-art-tag {
  position: absolute; left: 10px; bottom: 8px; font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: #fff; background: #0b1220a8; backdrop-filter: blur(4px); padding: 3px 9px; border-radius: 999px;
}
.lc-thumb { position: relative; width: 78px; height: 46px; flex-shrink: 0; border-radius: 8px; overflow: hidden; border: 1px solid #ffffff1f; box-shadow: 0 2px 8px #0006; }
.lc-thumb .lc-num { position: absolute; left: 4px; top: 4px; width: 18px; height: 18px; font-size: 0.68rem; border-radius: 6px; background: #0b1220cc; }
/* Level select cards */
.level-list { display: flex; flex-direction: column; gap: 8px; }
.level-card {
  background: #0a1120;
  border: 1px solid var(--panel-border);
  border-radius: 9px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  font-family: inherit;
  transition: all 0.15s ease;
  width: 100%;
}
.level-card:hover { background: #131f36; border-color: #3b4d73; transform: translateX(3px); }
.level-card.current { border-color: var(--accent); box-shadow: 0 0 0 1px #38bdf844; }
.lc-num {
  width: 30px; height: 30px;
  flex-shrink: 0;
  border-radius: 8px;
  background: #1c2942;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem;
  color: var(--accent);
}
.lc-main { flex: 1; min-width: 0; }
.lc-title { font-weight: 600; font-size: 0.86rem; }
.lc-sub { font-size: 0.7rem; color: var(--text-dim); margin-top: 2px; }
.lc-stars { color: var(--warning); font-size: 0.8rem; letter-spacing: 1px; flex-shrink: 0; }

/* Help modal */
.help-section { margin-bottom: 18px; }
.help-h {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.help-p { font-size: 0.81rem; color: var(--text-muted); line-height: 1.6; }
.help-diagram { display: flex; gap: 14px; margin: 10px 0; }
.help-diagram figure { flex: 1; text-align: center; background: #0a1120; border: 1px solid var(--panel-border); border-radius: 8px; padding: 10px; }
.help-diagram figcaption { font-size: 0.68rem; color: var(--text-dim); margin-top: 5px; }
.mat-table { width: 100%; border-collapse: collapse; font-size: 0.75rem; margin-top: 8px; }
.mat-table th {
  text-align: left;
  color: var(--text-dim);
  font-size: 0.63rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 7px;
  border-bottom: 1px solid var(--panel-border);
}
.mat-table td { padding: 6px 7px; border-bottom: 1px solid #1b263f; color: var(--text-muted); }
.mat-table td:first-child { color: var(--text); font-weight: 600; }
.mat-table .num { font-variant-numeric: tabular-nums; text-align: right; }
.key-list { display: grid; grid-template-columns: 1fr 1fr; gap: 5px 14px; font-size: 0.76rem; color: var(--text-muted); }
.key-list div { display: flex; justify-content: space-between; gap: 8px; padding: 2px 0; }
.key-list kbd {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
  background: #0a1120;
  border: 1px solid var(--panel-border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--text);
}

/* The toolbar needs ~1,600 px at full size. Shed detail in steps as the window narrows so the
   Test button is always on screen on a typical laptop, rather than hidden behind a scroll. */
@media (max-width: 1500px) {
  .mat-btn small { display: none; }
  .mat-btn { flex-direction: row; align-items: center; padding: 6px 10px 6px 8px; }
  .tool-cluster .btn:not(.mat-btn) kbd { display: none; }
}
@media (max-width: 1360px) {
  .btn .lbl { display: none; }
}

/* Narrow screens: keep the readouts, drop the decoration. */
@media (max-width: 900px) {
  .meters { gap: 10px; }
  .meter { min-width: 0; }
  .meter-track { display: none; }
  .meter-label { flex-direction: row; align-items: baseline; gap: 5px; margin-bottom: 0; }
  .meter-sub { display: none; }
  .meter-ico { width: 18px; height: 18px; }
  #hud-objectives { width: 190px; font-size: 0.7rem; }
  #hud-legend { display: none; }
}
/* Phones and tablets upright: three short rows (materials / tools / actions) instead of a
   sideways scroll, so the Test button is never off-screen. */
@media (max-width: 900px) and (min-height: 521px) {
  #toolbar { height: auto; flex-wrap: wrap; overflow: visible; padding: 6px 8px; gap: 6px; }
  #toolbar .tool-cluster { flex: 1 1 100%; flex-wrap: wrap; gap: 5px; }
  #toolbar .tool-cluster > .btn { flex: 1 1 0; justify-content: center; padding-left: 6px; padding-right: 6px; min-width: 0; }
  #toolbar .divider { flex-basis: 100%; height: 0; margin: 0; width: auto; }
  #btn-test, #btn-edit { flex-grow: 2.4 !important; position: static; }
}
@media (max-width: 700px) {
  .meter-ico { display: none; }
  .meters { gap: 8px; }
  .btn .lbl { display: none; }
  #level-pill { display: none; }
  .brand-sub { display: none; }
  .mat-btn small { display: none; }
  .btn kbd { display: none; }
  .mat-btn { flex-direction: row; padding: 6px 10px 6px 8px; }
  #btn-test .btn-long, #btn-edit .btn-long { display: none; }
  #hud-analysis { width: 178px; font-size: 0.7rem; }
  #hud-objectives { width: 168px; }
}
/* Phones on their side: one compact row; every pixel of height is workspace. */
@media (max-height: 520px) and (orientation: landscape) {
  #header { height: 40px; }
  #toolbar { height: 44px; padding: 0 8px; gap: 4px; }
  .tool-cluster { gap: 4px; }
  .btn { padding-left: 8px; padding-right: 8px; }
  .btn .lbl, .btn kbd { display: none; }
  .mat-btn small { display: none; }
  .mat-btn { padding: 6px 8px 6px 7px; flex-direction: row; }
  #btn-test .btn-long, #btn-edit .btn-long { display: none; }
  .divider { margin: 0 2px; }
}
/* On the very smallest landscape screens there is no room for everything, so Test comes first */
@media (max-height: 520px) and (orientation: landscape) and (max-width: 700px) {
  #toolbar .tool-cluster:last-child { order: -1; }
  #btn-test, #btn-edit { order: -1; position: static; }
  .swatch { width: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}