/* ── Reset & Variables ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Base palette */
  --bg:      #0d1017;
  --surf:    #161b22;
  --surf2:   #1e242d;
  --surf3:   #252d38;
  --border:  #2e3847;
  --border2: #3a4557;

  /* Accents */
  --accent:  #f4a83a;
  --accent2: #e8941f;
  --green:   #4caf50;
  --green2:  #3d9040;
  --red:     #e04040;
  --blue:    #3a8fd6;

  /* Text */
  --text:    #c8cdd6;
  --text2:   #e8ecf2;
  --dim:     #6b7587;
  --dim2:    #8a95a3;

  /* Shadows & glows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.5);
  --shadow:    0 2px 8px rgba(0,0,0,.55);
  --shadow-lg: 0 4px 20px rgba(0,0,0,.65);
  --glow-accent: 0 0 12px rgba(244,168,58,.2);
  --glow-green:  0 0 10px rgba(76,175,80,.2);

  --font: 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Mono', 'Courier New', monospace;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.4;
  padding-top: 32px;
}

/* ── Custom Titlebar ─────────────────────────────────────────── */

#titlebar {
  position: fixed; top: 0; left: 0; right: 0;
  height: 32px;
  background: #0a0d13;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  z-index: 10000;
  -webkit-app-region: drag;
  user-select: none;
}

#titlebar-title {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--dim);
  padding-left: 1rem;
}

#titlebar-controls {
  display: flex;
  -webkit-app-region: no-drag;
}

#titlebar-controls button {
  width: 46px; height: 32px;
  border: none; background: transparent;
  color: var(--dim); font-size: .8rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .12s, color .12s;
}

#titlebar-controls button:hover { background: rgba(255,255,255,.08); color: var(--text2); }
#tb-close:hover { background: #c42b1c !important; color: #fff !important; }

.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ── Start Screen ───────────────────────────────────────────── */

#start-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 32px);
  background:
    radial-gradient(ellipse at 50% 35%, rgba(244,168,58,.07) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 40%, #192030 0%, #080c11 100%);
}

/* Subtle crosshatch grid overlay on start screen */
#start-screen::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(46,56,71,.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,56,71,.35) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.start-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.title {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  text-shadow:
    0 0 60px rgba(244,168,58,.5),
    0 0 20px rgba(244,168,58,.3),
    0 2px 4px rgba(0,0,0,.8);
  margin-bottom: .35rem;
}

.subtitle {
  color: var(--dim2);
  letter-spacing: .25em;
  text-transform: uppercase;
  margin-bottom: 3rem;
  font-size: .72rem;
}

/* ── Shared Buttons ─────────────────────────────────────────── */

.btn-row { display: flex; gap: .75rem; justify-content: center; }

button {
  font-family: var(--font);
  cursor: pointer;
  border: none;
  border-radius: 4px;
  transition: background .15s, color .15s, border-color .15s, box-shadow .15s;
}

.btn-primary {
  background: linear-gradient(180deg, #f9b94a 0%, var(--accent2) 100%);
  color: #111;
  padding: .75rem 2.25rem;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .05em;
  box-shadow: 0 2px 12px rgba(244,168,58,.35), 0 1px 0 rgba(255,255,255,.15) inset;
}
.btn-primary:hover {
  background: linear-gradient(180deg, #ffc55e 0%, #f0a030 100%);
  box-shadow: 0 4px 20px rgba(244,168,58,.5), 0 1px 0 rgba(255,255,255,.15) inset;
}

.btn-secondary {
  background: var(--surf2);
  color: var(--text);
  padding: .75rem 2rem;
  font-size: 1rem;
  border: 1px solid var(--border2);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background: var(--surf3);
  border-color: var(--dim2);
}

.btn-save {
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(244,168,58,.5);
  padding: .3rem .9rem;
  font-size: .78rem;
  font-weight: 600;
}
.btn-save:hover {
  background: rgba(244,168,58,.1);
  border-color: var(--accent);
}

.btn-place {
  background: linear-gradient(180deg, #5dc560 0%, var(--green2) 100%);
  color: #fff;
  padding: .4rem .9rem;
  font-size: .78rem;
  font-weight: 600;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.btn-place:hover:not(:disabled) {
  background: linear-gradient(180deg, #70d474 0%, #4aaa4e 100%);
  box-shadow: 0 2px 8px rgba(76,175,80,.3);
}
.btn-place:disabled { background: var(--surf2); color: var(--dim); cursor: not-allowed; box-shadow: none; }

.btn-mine {
  background: linear-gradient(180deg, #f9b94a 0%, var(--accent2) 100%);
  color: #111;
  padding: .4rem 1rem;
  font-size: .82rem;
  font-weight: 700;
  min-width: 86px;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.btn-mine:hover:not(.disabled) {
  background: linear-gradient(180deg, #ffc55e 0%, #f0a030 100%);
  box-shadow: 0 2px 8px rgba(244,168,58,.3);
}
.btn-mine.disabled { background: var(--surf2); color: var(--dim); cursor: not-allowed; box-shadow: none; }

.btn-remove {
  background: transparent;
  color: var(--dim);
  border: 1px solid var(--border);
  width: 26px; height: 26px;
  border-radius: 50%;
  font-size: .68rem;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.btn-remove:hover { background: var(--red); color: #fff; border-color: var(--red); }

/* ── Modal ──────────────────────────────────────────────────── */

.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.75);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
  backdrop-filter: blur(2px);
}

.modal-box {
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 2rem;
  width: 400px; max-width: 95vw;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,.04) inset;
}
.modal-box h2 {
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.field { margin-bottom: 1.25rem; }
.field > label {
  display: block;
  color: var(--dim2);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: .5rem;
}

.btn-group { display: flex; gap: .5rem; }

.density-btn, .difficulty-btn {
  flex: 1; padding: .45rem;
  background: var(--surf2); color: var(--dim);
  border: 1px solid var(--border); border-radius: 4px;
  font-size: .85rem;
}
.density-btn.active, .difficulty-btn.active {
  background: linear-gradient(180deg, #f9b94a 0%, var(--accent2) 100%);
  color: #111;
  border-color: var(--accent);
  font-weight: 700;
}
.density-btn:hover:not(.active), .difficulty-btn:hover:not(.active) { border-color: var(--accent); color: var(--accent); }

.toggle-row { display: flex; align-items: center; gap: .75rem; }
.toggle {
  width: 42px; height: 22px;
  background: var(--surf3);
  border: 1px solid var(--border2);
  border-radius: 11px;
  cursor: pointer;
  position: relative; flex-shrink: 0;
  transition: background .2s;
}
.toggle::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  background: var(--dim);
  border-radius: 50%;
  top: 2px; left: 2px;
  transition: transform .2s, background .2s;
  box-shadow: 0 1px 3px rgba(0,0,0,.4);
}
#biters-toggle:checked + .toggle,
.sr-only:checked + .toggle { background: var(--accent); border-color: var(--accent2); }
#biters-toggle:checked + .toggle::after,
.sr-only:checked + .toggle::after { transform: translateX(20px); background: #fff; }
.toggle-row span { color: var(--dim2); font-size: .85rem; }

.modal-actions { margin-top: 1.75rem; }

/* ── Game Layout ────────────────────────────────────────────── */

#game-screen { display: flex; flex-direction: column; min-height: calc(100vh - 32px); }

.game-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .5rem 1.25rem;
  background: linear-gradient(180deg, #1e2530 0%, #171d26 100%);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 8px rgba(0,0,0,.5);
  position: relative;
  z-index: 10;
}
/* Amber accent line at very top of header */
.game-header::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .6;
}

.header-title {
  font-weight: 900;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--accent);
  font-size: .9rem;
  text-shadow: 0 0 16px rgba(244,168,58,.3);
}
.header-right { display: flex; align-items: center; gap: .75rem; }

.biter-indicator {
  font-size: .72rem;
  font-weight: 700;
  color: var(--red);
  background: rgba(224,64,64,.12);
  border: 1px solid rgba(224,64,64,.35);
  border-radius: 4px;
  padding: .22rem .6rem;
  text-shadow: 0 0 8px rgba(224,64,64,.4);
}

/* ── Inventory Bar ──────────────────────────────────────────── */

.inventory-tab-grid {
  display: flex; flex-wrap: wrap; gap: .4rem;
  padding: .5rem 0;
}

.inv-item {
  display: flex; flex-direction: column; align-items: center;
  padding: .3rem .55rem;
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 5px;
  min-width: 68px; flex-shrink: 0;
  gap: .1rem;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s;
}
.inv-item.has-items {
  border-color: rgba(244,168,58,.4);
  background: linear-gradient(180deg, rgba(244,168,58,.07) 0%, var(--surf) 100%);
}
.inv-icon  { font-size: 1.4rem; line-height: 1; }
.inv-icon .item-icon { width: 64px; height: 64px; }
.inv-name  { font-size: .58rem; color: var(--dim2); text-align: center; line-height: 1.2; }
.inv-count { font-size: .82rem; font-weight: 700; }
.inv-item:not(.has-items) .inv-count { color: var(--dim); }

/* ── Power / Fluid Bar ──────────────────────────────────────── */

.power-bar {
  display: flex; align-items: center; gap: .6rem;
  padding: .3rem 1.25rem;
  background: #0a0d12;
  border-bottom: 1px solid var(--border);
  font-size: .72rem;
  flex-wrap: wrap;
  box-shadow: 0 1px 0 rgba(255,255,255,.02) inset;
}

.fluid-cell {
  display: flex; align-items: center; gap: .35rem;
}

.fluid-icon { font-size: .9rem; }

.fluid-track {
  width: 70px; height: 5px;
  background: rgba(255,255,255,.06);
  border-radius: 3px;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid rgba(255,255,255,.04);
}

.fluid-fill { height: 100%; border-radius: 3px; transition: width .2s linear; }
.water-fill { background: linear-gradient(90deg, #2a6fa8, #3a8fd6); box-shadow: 0 0 6px rgba(58,143,214,.5); }
.steam-fill { background: linear-gradient(90deg, #a05520, #c96b30); box-shadow: 0 0 6px rgba(201,107,48,.4); }
.acc-fill   { background: linear-gradient(90deg, #6d42c0, #8b5cf6); box-shadow: 0 0 6px rgba(139,92,246,.4); }

.fluid-val { color: var(--dim2); }

.fluid-sep { color: var(--border2); }

.power-cell  { margin-left: .25rem; }
.power-on    { color: var(--accent); font-weight: 700; text-shadow: 0 0 8px rgba(244,168,58,.35); }
.power-warn  { color: var(--red); font-weight: 700; text-shadow: 0 0 8px rgba(224,64,64,.35); }

/* ── Tabs ───────────────────────────────────────────────────── */

.tab-nav {
  display: flex;
  padding: 0 1.25rem;
  background: linear-gradient(180deg, #1a2030 0%, #141923 100%);
  border-bottom: 1px solid var(--border);
  gap: .1rem;
}
.tab-btn {
  padding: .6rem 1.2rem;
  background: transparent;
  color: var(--dim);
  font-size: .85rem; font-weight: 600;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  letter-spacing: .03em;
  transition: color .15s, border-color .15s;
}
.tab-btn:hover { color: var(--text2); }
.tab-btn.tab-alert { position: relative; }
.tab-btn.tab-alert::after {
  content: '';
  position: absolute;
  top: 6px; right: 6px;
  width: 7px; height: 7px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--green);
}
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  text-shadow: 0 0 12px rgba(244,168,58,.3);
}

.tab-content { padding: 1.25rem; flex: 1; }
.tab-panel { display: block; }

.section-label {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--dim);
  margin-bottom: .75rem;
  display: flex; align-items: center; gap: .5rem;
}
.section-label::after {
  content: '';
  flex: 1; height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}

/* ── Crafting Tab ───────────────────────────────────────────── */

.craft-hint-text {
  font-size: .72rem; color: var(--dim); margin-bottom: .85rem;
}

.craft-section-label {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--dim);
  margin: .75rem 0 .4rem;
  grid-column: 1 / -1;
}

.craft-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: .6rem;
}

.craft-card {
  padding: .85rem 1rem;
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex; flex-direction: column; gap: .38rem;
  transition: border-color .15s, box-shadow .15s;
  box-shadow: var(--shadow-sm);
}
.craft-card:hover { border-color: var(--border2); box-shadow: var(--shadow); }
.craft-card.craft-active {
  border-color: var(--green);
  box-shadow: var(--shadow), 0 0 0 1px rgba(76,175,80,.2) inset;
  background: linear-gradient(180deg, rgba(76,175,80,.06) 0%, var(--surf) 100%);
}

.craft-header { display: flex; align-items: center; gap: .5rem; }
.craft-icon   { font-size: 1.4rem; }
.craft-name   { font-weight: 700; font-size: .88rem; color: var(--text2); }

.craft-recipe-line { font-size: .7rem; color: var(--dim); }

.craft-queue-count       { font-size: .72rem; color: var(--green); }
.craft-queue-count.waiting { color: var(--dim); }
.craft-q-num             { font-weight: 700; }

.craft-bar { margin: .15rem 0; }

.craft-actions { display: flex; gap: .4rem; margin-top: .2rem; }

.btn-craft {
  flex: 1;
  background: linear-gradient(180deg, #f9b94a 0%, var(--accent2) 100%);
  color: #111;
  padding: .42rem .7rem;
  border-radius: 4px; border: none;
  font-size: .8rem; font-weight: 700;
  cursor: pointer; font-family: var(--font);
  display: flex; align-items: center; justify-content: center; gap: .4rem;
  box-shadow: var(--shadow-sm);
}
.btn-craft:hover:not(.cant-afford) {
  background: linear-gradient(180deg, #ffc55e 0%, #f0a030 100%);
  box-shadow: 0 2px 8px rgba(244,168,58,.3);
}
.btn-craft.cant-afford { background: var(--surf2); color: var(--dim); cursor: not-allowed; box-shadow: none; }

.craft-shift-hint {
  font-size: .62rem; font-weight: 400; opacity: .65;
}

.btn-craft-cancel {
  background: transparent; color: var(--dim);
  border: 1px solid var(--border);
  border-radius: 4px; padding: .4rem .55rem;
  font-size: .75rem; cursor: pointer; font-family: var(--font);
}
.btn-craft-cancel:hover { background: var(--red); color: #fff; border-color: var(--red); }

/* ── Mining Tab ─────────────────────────────────────────────── */

#base-map {
  width: min(80vw, 80vh);
  height: min(80vw, 80vh);
  display: block;
  margin-bottom: 1.5rem;
  border-radius: 6px;
  image-rendering: pixelated;
}

.patch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: .5rem;
}

.patch-card {
  display: flex; align-items: center; gap: .75rem;
  padding: .85rem 1rem;
  background: linear-gradient(135deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color .15s, box-shadow .15s;
  box-shadow: var(--shadow-sm);
}
.patch-card:not(.depleted):not(.patch-locked):hover {
  border-color: var(--accent);
  box-shadow: var(--shadow), var(--glow-accent);
}
.patch-card.depleted  { opacity: .4; }
.patch-card.patch-locked { opacity: .55; border-color: var(--border); border-style: dashed; }

.patch-icon { font-size: 1.8rem; flex-shrink: 0; }
.patch-info { flex: 1; min-width: 0; }
.patch-name      { font-weight: 700; font-size: .88rem; margin-bottom: .15rem; color: var(--text2); }
.patch-remaining { font-size: .72rem; color: var(--dim2); }
.patch-nodes     { font-size: .68rem; color: var(--dim); margin-top: .1rem; }

/* ── Progress Bars (shared) ─────────────────────────────────── */

.progress-bar { height: 5px; background: rgba(255,255,255,.06); border-radius: 3px; overflow: hidden; }
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  border-radius: 3px;
  transition: width .08s linear;
  box-shadow: 0 0 6px rgba(244,168,58,.4);
}

.mini-bar { height: 3px; background: rgba(255,255,255,.05); border-radius: 2px; overflow: hidden; margin-top: .3rem; }
.mini-fill { height: 100%; background: var(--border); border-radius: 2px; transition: width .1s linear; }
.mini-fill.fill-active {
  background: linear-gradient(90deg, var(--green2), var(--green));
  box-shadow: 0 0 4px rgba(76,175,80,.45);
}

/* ── Buildings Tab ──────────────────────────────────────────── */

.buildings-layout {
  display: grid;
  grid-template-columns: 1fr 1100px;
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 680px) { .buildings-layout { grid-template-columns: 1fr; } }

.placement-col, .active-col { display: flex; flex-direction: column; gap: .6rem; }
.active-col-header { display: flex; align-items: center; justify-content: space-between; }

.placement-status {
  padding: .55rem .9rem;
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .78rem; color: var(--dim);
  box-shadow: var(--shadow-sm);
}
.placement-status-row {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: .5rem; margin-bottom: .35rem;
}
.place-queue-info { font-size: .68rem; color: var(--dim); }

.buildable-card {
  display: flex; align-items: center; gap: .85rem;
  padding: .9rem 1rem;
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s, box-shadow .15s;
}
.buildable-card:hover { border-color: var(--border2); box-shadow: var(--shadow); }

.card-icon {
  flex-shrink: 0; width: 140px;
  display: flex; align-items: center; justify-content: center;
  font-size: 3.5rem; line-height: 1;
}
.card-icon .item-icon { width: 140px; height: 140px; padding: 3px; }
.card-body h4       { font-size: .88rem; margin-bottom: .25rem; font-weight: 700; color: var(--text2); }
.card-body p        { font-size: .73rem; color: var(--dim); margin-bottom: .4rem; }
.card-cost          { font-size: .7rem; color: var(--accent); margin-bottom: .65rem !important; }
.btn-place.cant-afford { background: var(--surf2); color: var(--dim); cursor: not-allowed; box-shadow: none; }

/* ── Collapsible build sections ──────────────────────────────── */
.build-section { display: flex; flex-direction: column; gap: 0; }

.build-section-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .45rem .75rem;
  background: var(--surf3);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .78rem; font-weight: 700; color: var(--dim2);
  cursor: pointer; user-select: none;
  transition: background .12s, color .12s;
}
.build-section-header:hover { background: var(--surf4, var(--surf3)); color: var(--text2); }

.build-section-arrow { font-size: .7rem; color: var(--dim); margin-left: .4rem; }

.build-section-body {
  display: flex; flex-direction: column; gap: .6rem;
  padding-top: .5rem;
}

/* ── Build tab buttons (drill/assembler type selector) ────────── */
.build-tab-row { display: flex; gap: .35rem; margin-bottom: .45rem; }

.build-tab-btn {
  padding: .22rem .65rem;
  font-size: .72rem; font-weight: 600;
  background: var(--surf3);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--dim2);
  cursor: pointer;
  transition: background .12s, color .12s, border-color .12s;
}
.build-tab-btn:hover  { background: var(--surf4, var(--surf2)); color: var(--text2); }
.build-tab-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.place-row { display: flex; gap: .5rem; align-items: center; }
.place-row select, .recipe-select {
  flex: 1;
  padding: .35rem .45rem;
  background: var(--surf3);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--font);
  font-size: .76rem;
  min-width: 0;
}
.place-row select:focus, .recipe-select:focus { outline: none; border-color: var(--accent); }

/* ── Active Buildings ───────────────────────────────────────── */

.buildings-list { display: flex; flex-direction: column; gap: .4rem; }

.building-card {
  display: flex; align-items: center; gap: .75rem;
  padding: .65rem .9rem;
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s;
  width: 100%; box-sizing: border-box;
}
.building-icon   { font-size: 1.35rem; flex-shrink: 0; padding-top: .1rem; }
.building-info   { flex: 1; min-width: 160px; max-width: 280px; display: flex; flex-direction: column; gap: .18rem; }

.bldg-main-wrap {
  display: flex; flex-direction: column; align-items: center; gap: .35rem;
  flex-shrink: 0; margin-left: auto;
}
.bldg-main-img {
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; width: 140px;
}
.bldg-main-img .item-icon { width: 140px; height: 140px; padding: 3px; }
.bldg-main-emoji { font-size: 5rem; line-height: 1; }
.bldg-name-label {
  font-size: .68rem; color: var(--dim); text-align: center;
  max-width: 136px; line-height: 1.3;
}
.bldg-output-img {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .3rem; flex-shrink: 0; width: 140px; opacity: .95;
}
.bldg-output-img .item-icon { width: 140px; height: 140px; padding: 3px; }
.bldg-output-count {
  font-size: .85rem; font-weight: 700; color: var(--accent); text-align: center;
}
.building-row    { display: flex; align-items: baseline; justify-content: space-between; gap: .5rem; }
.building-name   { font-weight: 700; font-size: .93rem; color: var(--text2); }
.building-count  { font-size: .78rem; font-weight: 700; color: var(--accent); flex-shrink: 0; }
.building-meta   { font-size: .68rem; color: var(--dim); }
.building-status { font-size: .7rem; }
.status-ok   { color: var(--green); }
.status-warn { color: var(--dim); }

.building-limit-row {
  display: flex; align-items: center; gap: .35rem;
  font-size: .68rem; color: var(--dim);
  margin: .1rem 0;
}

.limit-input {
  width: 68px;
  background: var(--surf3);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 4px;
  font-size: .72rem;
  font-family: var(--font);
}
.limit-input:focus { outline: 1px solid var(--accent); border-color: var(--accent); }

.chunk-info-line {
  font-size: .75rem;
  color: var(--dim);
  margin: -.3rem 0 .5rem;
}

.building-actions {
  display: flex; flex-direction: column; gap: .3rem;
  flex-shrink: 0; align-items: center;
}

.btn-toggle {
  width: 28px; height: 28px;
  border-radius: 50%;
  font-size: .75rem;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.btn-toggle.tog-on  {
  background: rgba(76,175,80,.15);
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 6px rgba(76,175,80,.2);
}
.btn-toggle.tog-off { background: var(--surf3); color: var(--dim); }
.btn-toggle:hover   { opacity: .8; }

.btn-priority {
  width: 28px; height: 28px;
  border-radius: 50%;
  font-size: .85rem;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  background: var(--surf3); color: var(--dim);
}
.btn-priority.priority-on {
  background: rgba(255,193,7,.15);
  border-color: #ffc107;
  color: #ffc107;
  box-shadow: 0 0 6px rgba(255,193,7,.3);
}
.btn-priority:hover { opacity: .8; }

.btn-removesmall {
  background: transparent;
  color: var(--dim);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .15rem .4rem;
  font-size: .7rem;
}
.btn-removesmall:hover { background: var(--red); color: #fff; border-color: var(--red); }

.recipe-select { margin-top: .1rem; }

.empty-msg {
  padding: 2rem; text-align: center;
  color: var(--dim); font-size: .82rem;
  background: var(--surf);
  border: 1px dashed var(--border);
  border-radius: 6px;
}

/* ── Instant hover transitions for dynamically-replaced elements ── */
#resource-patches .btn-mine,
#craft-recipes .btn-craft,
#craft-recipes .btn-craft-cancel,
#active-buildings .btn-toggle,
#active-buildings .btn-remove-building {
  transition: background 0s, color 0s, border-color 0s, opacity 0s;
}

/* ── Research Tab ───────────────────────────────────────────── */

.research-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1.25rem;
  align-items: start;
}
@media (max-width: 700px) { .research-layout { grid-template-columns: 1fr; } }

.tech-list { display: flex; flex-direction: column; gap: .5rem; }

.tech-card {
  padding: 1.5rem 2rem;
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color .15s, box-shadow .15s;
  box-shadow: var(--shadow-sm);
}
.tech-card:hover:not(.tech-locked):not(.tech-done) { border-color: var(--border2); box-shadow: var(--shadow); }
.tech-card.tech-current {
  border-color: var(--accent);
  box-shadow: var(--shadow), var(--glow-accent);
  background: linear-gradient(180deg, rgba(244,168,58,.06) 0%, var(--surf) 100%);
}
.tech-card.tech-done    { opacity: .6; }
.tech-card.tech-locked  { opacity: .45; border-style: dashed; }
.tech-prereq { font-size: .68rem; color: var(--dim); margin-top: .2rem; font-style: italic; }

.tech-header {
  display: flex; align-items: flex-start; gap: .75rem;
}
.tech-icon  { font-size: 3.2rem; flex-shrink: 0; }
.tech-body  { flex: 1; min-width: 0; }
.tech-name  { font-weight: 700; font-size: 1.76rem; margin-bottom: .15rem; color: var(--text2); }
.tech-desc  { font-size: 1.44rem; color: var(--dim); margin-bottom: .2rem; }
.tech-cost  { font-size: 1.36rem; color: var(--accent); }
.tech-action { flex-shrink: 0; align-self: center; }
.tech-bar   { margin-top: .55rem; height: 10px; }

.tech-done-badge {
  font-size: .72rem; font-weight: 700; color: var(--green);
  text-shadow: 0 0 8px rgba(76,175,80,.3);
}

.btn-research-tech {
  background: linear-gradient(180deg, #f9b94a 0%, var(--accent2) 100%);
  color: #111;
  border: none; border-radius: 4px;
  padding: .35rem .75rem;
  font-size: .78rem; font-weight: 700;
  cursor: pointer; font-family: var(--font);
  box-shadow: var(--shadow-sm);
}
.btn-research-tech:hover:not(:disabled) {
  background: linear-gradient(180deg, #ffc55e 0%, #f0a030 100%);
  box-shadow: 0 2px 8px rgba(244,168,58,.3);
}
.btn-research-tech:disabled, .btn-research-tech.disabled {
  background: var(--surf2); color: var(--dim); cursor: not-allowed; box-shadow: none;
}

.btn-cancel-tech {
  background: transparent; color: var(--dim);
  border: 1px solid var(--border); border-radius: 4px;
  padding: .35rem .65rem;
  font-size: .75rem; cursor: pointer; font-family: var(--font);
}
.btn-cancel-tech:hover { background: var(--red); color: #fff; border-color: var(--red); }

.research-idle { font-size: .8rem; color: var(--dim); padding: .75rem 0; }

.research-active {
  padding: .9rem 1rem;
  background: linear-gradient(180deg, rgba(244,168,58,.07) 0%, var(--surf) 100%);
  border: 1px solid var(--accent);
  border-radius: 6px;
  box-shadow: var(--shadow), var(--glow-accent);
}
.research-name          { font-weight: 700; font-size: .9rem; margin-bottom: .35rem; color: var(--text2); }
.research-progress-line { font-size: .75rem; color: var(--dim); margin-bottom: .3rem; }
.research-bar           { height: 7px; margin: .3rem 0; }
.research-meta          { font-size: .7rem; color: var(--dim); margin-top: .35rem; }
.research-queue-line    { font-size: .72rem; color: var(--dim); margin-top: .35rem; opacity: .8; }
.research-idle-note     { font-size: .72rem; color: var(--accent); }

/* ── Research button no-flicker ─────────────────────────────── */
#tech-list .btn-research-tech,
#tech-list .btn-cancel-tech,
.tech-node .btn-research-tech,
.tech-node .btn-cancel-tech {
  transition: background 0s, color 0s, border-color 0s, opacity 0s;
}

/* ── Dev Panel ──────────────────────────────────────────────── */

.dev-panel {
  display: flex; align-items: center; gap: .6rem;
  padding: .35rem .8rem;
  background: #1a0e2e;
  border-bottom: 1px solid #5a2d8a;
  font-size: .78rem;
  flex-wrap: wrap;
}
.dev-label {
  font-weight: 700; color: #c084fc;
  letter-spacing: .05em; font-size: .72rem;
}
.dev-toggle-label { display: flex; align-items: center; gap: .3rem; color: var(--text); cursor: pointer; }
.dev-toggle-label input { cursor: pointer; accent-color: #c084fc; }
.dev-speed-label { color: var(--dim); margin-left: .4rem; }
.dev-speed-btn {
  padding: .15rem .45rem; border-radius: 4px;
  background: var(--surf3); border: 1px solid var(--border2);
  color: var(--text); cursor: pointer; font-size: .75rem;
}
.dev-speed-btn.active { background: #5a2d8a; border-color: #c084fc; color: #f0d9ff; }
.dev-speed-btn:hover:not(.active) { background: var(--surf2); }
.dev-perf-input {
  padding: .15rem .35rem; border-radius: 4px; width: 140px;
  background: var(--surf3); border: 1px solid var(--border2);
  color: var(--text); font-size: .75rem;
}
.dev-perf-input::placeholder { color: var(--dim); }
.dev-perf-btn {
  padding: .15rem .45rem; border-radius: 4px;
  background: #1e3a1e; border: 1px solid #4caf50;
  color: #a5d6a7; cursor: pointer; font-size: .75rem;
}
.dev-perf-btn:hover { background: #2d5a2d; }
.dev-close-btn {
  margin-left: auto; padding: .1rem .4rem; border-radius: 3px;
  background: transparent; border: 1px solid var(--border);
  color: var(--dim); cursor: pointer; font-size: .75rem;
}
.dev-close-btn:hover { color: var(--red); border-color: var(--red); }

/* ── Module Row ─────────────────────────────────────────────── */

.module-row {
  display: flex; align-items: center; gap: .3rem;
  padding: .3rem 0; flex-wrap: wrap;
  border-top: 1px solid var(--border);
  margin-top: .2rem;
}
.module-slots-info {
  font-size: .7rem; color: var(--dim);
  min-width: 3.5rem; text-align: right;
}
.module-type-sel {
  font-size: .72rem;
  background: var(--surf3); color: var(--text);
  border: 1px solid var(--border2); border-radius: 4px;
  padding: .1rem .25rem; cursor: pointer;
  max-width: 6rem;
}
.mod-btn {
  font-size: .7rem; padding: .1rem .35rem;
  border-radius: 4px; border: 1px solid var(--border2);
  background: var(--surf3); color: var(--text);
  cursor: pointer; white-space: nowrap;
}
.mod-btn:hover { background: var(--surf2); border-color: var(--accent); color: var(--accent); }
.mod-fill { color: var(--green); }
.mod-fill:hover { background: var(--surf2); border-color: var(--green); color: var(--green); }
.mod-clear { color: var(--red); }
.mod-clear:hover { background: var(--surf2); border-color: var(--red); color: var(--red); }
.mod-summary { font-size: .68rem; color: var(--accent); margin-left: .2rem; }
.mod-summary-empty { color: var(--dim); }

/* ── Notifications ──────────────────────────────────────────── */

.notif {
  position: fixed; top: 1rem; right: 1rem;
  padding: .55rem 1rem;
  background: linear-gradient(180deg, var(--surf3) 0%, var(--surf2) 100%);
  border: 1px solid var(--border2);
  border-radius: 6px;
  font-size: .82rem;
  transform: translateX(calc(100% + 1.5rem));
  transition: transform .25s ease;
  z-index: 999;
  max-width: 280px;
  box-shadow: var(--shadow-lg);
}
.notif.show { transform: translateX(0); }
.notif.notif-info    { border-left: 3px solid var(--accent); }
.notif.notif-warning { border-left: 3px solid var(--red); }

/* ── Ore Patch Popup ─────────────────────────────────────────── */
.ore-popup {
  position: absolute;
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  min-width: 200px;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  pointer-events: all;
}
.ore-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.ore-popup-title { font-weight: 700; font-size: .95rem; color: var(--accent); }
.ore-popup-close {
  background: none; border: none; color: var(--dim);
  cursor: pointer; font-size: 1rem; padding: 0 2px; line-height: 1;
}
.ore-popup-close:hover { color: #fff; }
.ore-popup-stats { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.ore-popup-row { display: flex; justify-content: space-between; gap: 16px; font-size: .85rem; }
.ore-popup-row span { color: var(--dim); }
.ore-popup-row strong { color: #fff; }
.ore-popup-mine-btn { width: 100%; }

/* Wrapper needed to position popup relative to canvas */
#base-map-wrap { position: relative; display: inline-block; margin-bottom: 1.5rem; }
#base-map-wrap #base-map { margin-bottom: 0; }

/* ── Tile Background Picker ──────────────────────────────────── */
.tile-bg-picker {
  position: absolute;
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  z-index: 102;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  min-width: 240px;
}
.tile-picker-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 8px; font-weight: 600; font-size: .9rem;
}
.tile-picker-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px;
  margin-bottom: 8px;
}
.tile-picker-option {
  aspect-ratio: 1; border: 2px solid transparent; border-radius: 4px;
  background: var(--surf3); cursor: pointer; padding: 0; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  font-size: .6rem; color: var(--dim);
}
.tile-picker-option img { width: 100%; height: 100%; object-fit: cover; display: block; }
.tile-picker-option:hover { border-color: var(--accent); }
.tile-picker-option.selected { border-color: #fff; box-shadow: 0 0 0 1px var(--accent); }
.tile-picker-actions { display: flex; gap: 6px; }
.tile-picker-btn {
  flex: 1; background: var(--surf3); border: 1px solid var(--border);
  border-radius: 5px; color: #fff; cursor: pointer; font-size: .8rem;
  padding: 5px 4px;
}
.tile-picker-btn:hover { background: var(--accent); border-color: var(--accent); }

/* ── Building Popup ──────────────────────────────────────────── */
.building-popup {
  position: absolute;
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  min-width: 210px;
  z-index: 101;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  pointer-events: all;
}
.bld-popup-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.bld-popup-title  { font-weight: 700; font-size: .95rem; color: var(--accent); }
.bld-popup-nav    { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-bottom: 10px; }
.bld-popup-recipe { flex: 1; text-align: center; font-size: .85rem; color: var(--dim); }
.bld-popup-arrow-prev, .bld-popup-arrow-next {
  background: none; border: 1px solid var(--border); border-radius: 4px;
  color: #fff; cursor: pointer; font-size: 1.1rem; line-height: 1; padding: 1px 6px;
}
.bld-popup-arrow-prev:disabled, .bld-popup-arrow-next:disabled { opacity: 0.3; cursor: default; }
.bld-popup-stats  { display: flex; flex-direction: column; gap: 5px; }
.bld-popup-row    { display: flex; justify-content: space-between; gap: 16px; font-size: .85rem; }
.bld-popup-row span { color: var(--dim); }
.bld-popup-row strong { color: #fff; }

.hub-view-toggle { display: flex; gap: 6px; margin: 8px 0 4px; }
.hub-queue-list  { display: flex; flex-direction: column; gap: 4px; max-height: 180px; overflow-y: auto; }

/* ── Biter Encounter Popup ───────────────────────────────────── */
.biter-popup {
  position: fixed;
  bottom: 80px;
  right: 20px;
  background: rgba(10,10,10,0.93);
  border: 2px solid #c44;
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 1500;
  max-width: 420px;
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.biter-popup.biter-popup-show { opacity: 1; transform: translateX(0); }
.biter-popup.biter-popup-fade { opacity: 0; transform: translateX(40px); }
.biter-popup-img { width: 128px; height: 128px; object-fit: cover; border-radius: 6px; flex-shrink: 0; }
.biter-popup-text { font-size: .9rem; color: #ddd; line-height: 1.6; margin: 0; }
.biter-popup-name { color: #ff6655; font-size: 1.05rem; display: block; margin-top: 4px; }

/* ── Script Tab ─────────────────────────────────────────────── */

.script-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 1rem;
  align-items: start;
}
@media (max-width: 700px) { .script-layout { grid-template-columns: 1fr; } }

.script-toolbar {
  display: flex; align-items: center; gap: .5rem;
  margin-bottom: .5rem;
}

.script-btn {
  padding: .3rem .8rem;
  font-size: .78rem;
  flex-shrink: 0;
}

.script-btn.auto-active {
  background: var(--green); border-color: var(--green); color: #111;
}

/* ── Script Tab Bar ─────────────────────────────────────────── */
.script-tab-bar {
  display: flex; gap: 2px;
  margin-bottom: 0;
}
.script-tab-btn {
  padding: .3rem .85rem;
  background: var(--surf3);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 5px 5px 0 0;
  color: var(--dim);
  font-size: .8rem;
  cursor: pointer;
  transition: background .1s, color .1s;
}
.script-tab-btn:hover { background: var(--surf2); color: var(--text); }
.script-tab-btn.script-tab-active {
  background: #0d120d;
  color: var(--text2);
  border-color: var(--border2);
  border-bottom-color: #0d120d;
}

.script-textarea {
  display: block;
  width: 100%;
  height: 220px;
  background: #0a0d0a;
  color: #a8e6a8;
  border: 1px solid var(--border);
  border-radius: 0 4px 4px 4px;
  padding: .65rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.55;
  resize: vertical;
  box-sizing: border-box;
}
.script-textarea:focus { outline: none; border-color: rgba(76,175,80,.6); box-shadow: 0 0 0 1px rgba(76,175,80,.1) inset; }

/* ── Picker Search ──────────────────────────────────────────── */
.picker-search {
  width: 100%;
  box-sizing: border-box;
  background: var(--surf3);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: .78rem;
  padding: .28rem .5rem;
  margin-bottom: .35rem;
}
.picker-search:focus { outline: none; border-color: var(--accent); }

.script-output-header {
  font-size: .7rem; color: var(--dim);
  margin: .45rem 0 .2rem;
  text-transform: uppercase; letter-spacing: .06em;
}

.script-output {
  background: #0a0d0a;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .5rem .65rem;
  height: 130px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.5;
}

.script-empty { color: #444; font-style: italic; }
.script-line  { padding: 1px 0; }
.out-ok    { color: #4ec94e; }
.out-info  { color: #7a9bdd; }
.out-warn  { color: #e8a020; }
.out-error { color: var(--red); }

/* ── Script editor syntax highlight overlay ─────────────────── */
.script-editor-wrap {
  position: relative;
  display: block;
  background: #0a0d0a;
  border: 1px solid var(--border);
  border-radius: 0 4px 4px 4px;
}
.script-editor-wrap:focus-within {
  border-color: rgba(76,175,80,.6);
  box-shadow: 0 0 0 1px rgba(76,175,80,.1) inset;
}
.script-editor-wrap .script-textarea {
  background: transparent;
  border: none;
  border-radius: 0;
  caret-color: #a8e6a8;
  color: transparent;
  position: relative;
  z-index: 1;
}
.script-editor-wrap .script-textarea::placeholder { color: #354035; }
.script-editor-wrap .script-textarea:focus { outline: none; box-shadow: none; }
.script-highlight {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  margin: 0;
  padding: .65rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-all;
  overflow: hidden;
  pointer-events: none;
  color: #a8e6a8;
  background: transparent;
  border: none;
  box-sizing: border-box;
  z-index: 0;
}
.sh-kw  { color: #c792ea; }
.sh-fn  { color: #f4a83a; }
.sh-str { color: #c3e88d; }
.sh-num { color: #f78c6c; }
.sh-var { color: #4a9eff; }
.sh-cmt { color: #4a5040; font-style: italic; }

.script-docs-col {
  background: var(--surf);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .75rem;
  max-height: 520px;
  overflow-y: auto;
  box-shadow: var(--shadow-sm);
}

.docs-section { margin-bottom: .7rem; }

.docs-header {
  font-size: .65rem;
  text-transform: uppercase; letter-spacing: .1em;
  color: var(--dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: .18rem; margin-bottom: .28rem;
}

.docs-item {
  font-size: .74rem; color: var(--dim2); line-height: 1.65;
}

.docs-item code {
  background: rgba(76,175,80,.1);
  color: #6de06d;
  padding: 0 4px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: .77rem;
  border: 1px solid rgba(76,175,80,.15);
}

/* ── Place count input ──────────────────────────────────────── */
.place-count {
  width: 72px; padding: .25rem .4rem; font-size: .85rem;
  background: var(--surf3); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
  text-align: center; font-family: var(--font);
}
.place-count:focus { outline: none; border-color: var(--accent); }

/* ── Buildings search ───────────────────────────────────────── */
.buildings-search-row { margin-bottom: .5rem; }
.buildings-search {
  width: 100%; padding: .32rem .55rem; font-size: .82rem;
  background: var(--surf3); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
  font-family: var(--font); box-sizing: border-box;
}
.buildings-search:focus { outline: none; border-color: var(--accent); }

/* ── Add/Remove buttons in building card ────────────────────── */
.building-add-row {
  display: flex; align-items: center; gap: .35rem; margin-top: .25rem;
}
.btn-add-building {
  padding: .15rem .45rem; font-size: .72rem;
  background: var(--surf3); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text); cursor: pointer;
  font-family: var(--font);
}
.btn-add-building:hover { background: var(--accent); color: #111; border-color: var(--accent); }
.btn-remove-building {
  padding: .15rem .45rem; font-size: .72rem;
  background: var(--surf3); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text); cursor: pointer;
  font-family: var(--font);
}
.btn-remove-building:hover { background: var(--red); color: #fff; border-color: var(--red); }
.add-count-input, .remove-count-input {
  width: 72px; padding: .25rem .4rem; font-size: .85rem;
  background: var(--surf3); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
  text-align: center; font-family: var(--font);
}
.add-count-input:focus, .remove-count-input:focus { outline: none; border-color: var(--accent); }

/* ── Recipe icon picker ─────────────────────────────────────── */
.recipe-picker { display: flex; flex-wrap: wrap; gap: 4px; margin: .2rem 0 .1rem; max-height: 130px; overflow-y: auto; }
.recipe-icon-btn {
  width: 42px; height: 42px; font-size: 1.4rem;
  display: flex; align-items: center; justify-content: center;
  background: var(--surf3); border: 1px solid var(--border);
  border-radius: 4px; cursor: pointer; transition: none;
  flex-shrink: 0;
}
.recipe-icon-btn:hover { border-color: var(--accent); background: rgba(244,168,58,.08); }
.recipe-icon-btn.selected {
  border-color: var(--green);
  background: rgba(76,175,80,.1);
  box-shadow: 0 0 0 1px var(--green);
}
#active-buildings .recipe-icon-btn,
.placement-col .recipe-icon-btn { transition: none; }
#active-buildings .btn-add-building,
#active-buildings .btn-remove-building,
#active-buildings .add-count-input,
#active-buildings .remove-count-input { transition: none; }

/* ── Tech tree ──────────────────────────────────────────────── */
.tech-tree-wrap {
  overflow-x: auto; overflow-y: auto;
  width: 100%; max-height: calc(100vh - 220px);
  border: 1px solid var(--border); border-radius: 6px;
  margin-top: .35rem;
  background: var(--bg);
}
.tech-tree-inner {
  display: flex; flex-direction: row;
  align-items: flex-start;
  position: relative;
  padding: .75rem .5rem;
  min-height: 220px;
}
.tech-tier {
  display: flex; flex-direction: column; gap: 0.35rem;
  min-width: 185px; flex-shrink: 0;
  padding: 0 .35rem;
}
.tech-node {
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 6px; padding: .63rem .84rem;
  cursor: pointer; user-select: none; min-width: 0;
  transition: border-color 0s;
  box-shadow: var(--shadow-sm);
  margin: 0;
}
.tech-node:hover:not(.node-done):not(.node-locked) {
  border-color: var(--accent);
  box-shadow: var(--shadow), var(--glow-accent);
}
.tech-node.node-done    { border-color: var(--green); opacity: .65; cursor: default; }
.tech-node.node-current {
  border-color: var(--accent);
  background: linear-gradient(180deg, rgba(244,168,58,.08) 0%, var(--surf) 100%);
  box-shadow: var(--shadow), var(--glow-accent);
}
.tech-node.node-queued  {
  border-color: #a07830;
  background: linear-gradient(180deg, rgba(244,168,58,.04) 0%, var(--surf) 100%);
}
.tech-node.node-locked  { opacity: .4; cursor: default; border-style: dashed; }
.tech-node-head { display: flex; align-items: center; gap: .25rem; }
.tech-node-icon { font-size: 1.6rem; flex-shrink: 0; }
.tech-node-name { font-size: 1.09rem; font-weight: 700; line-height: 1.2; color: var(--text2); }
.tech-node-cost { font-size: .92rem; color: var(--dim); margin-top: .07rem; }
.tech-node-badge { font-size: .9rem; color: var(--green); margin-top: .06rem; }
.tech-node-desc  { font-size: .84rem; color: #555; margin-top: .13rem; line-height: 1.3; }
.tech-node-unlocks { font-size: .84rem; color: #5a7a5a; margin-top: .06rem; }
.tech-node-prereqs { font-size: .81rem; color: var(--dim); margin-bottom: .07rem; }
.tech-tree-svg {
  position: absolute; top: 0; left: 0;
  pointer-events: none; overflow: visible;
}

/* ── Settings tab ───────────────────────────────────────────── */
.settings-layout { max-width: 520px; }
.settings-section { margin-bottom: 1.5rem; }
.settings-group {
  background: var(--surf);
  border: 1px solid var(--border);
  border-radius: 6px; padding: .1rem .75rem;
  box-shadow: var(--shadow-sm);
}
.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: .6rem 0; border-bottom: 1px solid var(--border);
}
.settings-row:last-child { border-bottom: none; }
.settings-row-label { font-size: .88rem; font-weight: 600; color: var(--text2); }
.settings-row-desc  { font-size: .74rem; color: var(--dim); margin-top: .08rem; }

.default-limit-row { display: flex; align-items: center; gap: .5rem; flex-shrink: 0; }
.default-limit-inf-label { font-size: .82rem; display: flex; align-items: center; gap: .25rem; cursor: pointer; color: var(--dim); }

/* ── PNG item icons ─────────────────────────────────────────── */
.item-icon {
  width: 32px; height: 32px;
  vertical-align: middle;
  image-rendering: pixelated;
  display: inline-block;
  border-radius: 3px;
  background: #20272f;
  padding: 1px;
  box-sizing: border-box;
}
.recipe-icon-btn .item-icon { width: 34px; height: 34px; }
.recipe-ingredient .item-icon { width: 20px; height: 20px; padding: 0; background: none; }
.craft-icon .item-icon { width: 28px; height: 28px; vertical-align: text-bottom; }
.tech-node-icon .item-icon, .tech-icon-img { width: 34px; height: 34px; padding: 0; background: none; }
.research-name .item-icon { width: 20px; height: 20px; vertical-align: middle; padding: 0; background: none; }

/* ── Start screen save list ─────────────────────────────────── */
.save-panel {
  width: 420px; max-width: 92vw;
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border2);
  border-radius: 8px;
  overflow: hidden;
  margin-top: .25rem;
  box-shadow: var(--shadow-lg);
}
.save-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .55rem .75rem;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surf3) 0%, var(--surf2) 100%);
}
.save-panel-title { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .09em; color: var(--dim2); }
.save-list { max-height: 240px; overflow-y: auto; }
.save-empty { padding: 1.1rem .75rem; text-align: center; color: var(--dim); font-size: .82rem; }
.save-slot {
  display: flex; align-items: center; justify-content: space-between;
  padding: .5rem .75rem;
  border-bottom: 1px solid var(--border);
  gap: .5rem;
  transition: background .1s;
}
.save-slot:last-child { border-bottom: none; }
.save-slot:hover { background: var(--surf2); }
.save-slot-info { flex: 1; min-width: 0; text-align: left; }
.save-slot-name { font-size: .85rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text2); }
.save-slot-date { font-size: .71rem; color: var(--dim); margin-top: .08rem; }
.save-slot-actions { display: flex; align-items: center; gap: .3rem; flex-shrink: 0; }
.btn-sm {
  padding: .2rem .55rem; font-size: .75rem;
  background: var(--surf3); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text); cursor: pointer; font-family: var(--font);
  white-space: nowrap;
}
.btn-sm:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm.cant-afford { opacity: .45; cursor: not-allowed; }
.btn-sm.cant-afford:hover { border-color: var(--border); color: var(--text); }
.btn-sm.btn-primary { background: linear-gradient(180deg,#f9b94a 0%,var(--accent2) 100%); color:#111; border-color:transparent; font-weight:700; }
.btn-sm.btn-primary:hover { background: linear-gradient(180deg,#ffc55e 0%,#f0a030 100%); color:#111; border-color:transparent; }
.btn-delete-save {
  width: 26px; height: 26px; font-size: .8rem;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid transparent;
  border-radius: 4px; cursor: pointer; color: var(--dim);
}
.btn-delete-save:hover { border-color: var(--red); color: var(--red); background: rgba(224,64,64,.08); }
.save-import-row {
  padding: .5rem .75rem;
  border-top: 1px solid var(--border);
  background: var(--surf2);
}
.save-import-row button { width: 100%; }

/* ── Save As header button ──────────────────────────────────── */
.btn-save-as {
  padding: .28rem .7rem; font-size: .78rem;
  background: transparent; border: 1px solid var(--border);
  border-radius: 4px; color: var(--dim); cursor: pointer; font-family: var(--font);
}
.btn-save-as:hover { border-color: var(--accent); color: var(--accent); }
.save-filename {
  font-size: .72rem; color: var(--dim); align-self: center;
  max-width: 160px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ── Script toolbar import/export buttons ───────────────────── */
.script-file-btn {
  padding: .28rem .6rem; font-size: .75rem;
  background: var(--surf3); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text); cursor: pointer; font-family: var(--font);
  white-space: nowrap;
}
.script-file-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Current Recipe Display ─────────────────────────────────── */
.recipe-current-display {
  display: flex; align-items: center; gap: .4rem;
  padding: .2rem 0 .25rem;
  font-size: .8rem; color: var(--dim);
}
.recipe-current-icon { font-size: 1.1rem; }
.recipe-current-name { color: var(--text); font-size: .78rem; }

/* ── Recipe Viewer Tab ──────────────────────────────────────── */
.recipe-search-input {
  width: 100%; padding: .45rem .7rem; margin-bottom: .75rem;
  background: var(--surf3); border: 1px solid var(--border); border-radius: 4px;
  color: var(--text); font-family: var(--font); font-size: .85rem;
  box-shadow: var(--shadow-sm) inset;
}
.recipe-search-input:focus { outline: none; border-color: var(--accent); }

.recipe-list { display: flex; flex-direction: column; gap: .65rem; }

.recipe-group {
  background: var(--surf);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.recipe-group-header {
  background: linear-gradient(180deg, var(--surf3) 0%, var(--surf2) 100%);
  padding: .4rem .75rem;
  font-size: .75rem; font-weight: 700; color: var(--accent);
  letter-spacing: .06em; text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.recipe-row {
  padding: .4rem .7rem;
  border-top: 1px solid var(--border);
  display: flex; flex-direction: column; gap: .2rem;
}
.recipe-row:first-of-type { border-top: none; }
.recipe-row:hover { background: rgba(255,255,255,.02); }

.recipe-row-name {
  font-size: .82rem; font-weight: 600; color: var(--text2);
  display: flex; align-items: center; gap: .5rem;
}
.recipe-mach {
  font-size: .7rem; font-weight: 400; color: var(--dim);
  background: var(--surf3); border-radius: 3px; padding: .05rem .35rem;
  border: 1px solid var(--border);
}

.recipe-row-io {
  display: flex; align-items: center; gap: .4rem; flex-wrap: wrap;
}
.recipe-io-group { display: flex; align-items: center; gap: .2rem; flex-wrap: wrap; }

.recipe-ingredient {
  display: inline-flex; align-items: center; gap: .2rem;
  font-size: .85rem;
}
.recipe-ingredient .item-icon { width: 64px; height: 64px; }
.recipe-ingredient-amt { font-size: .72rem; color: var(--dim); }

.recipe-arrow { color: var(--accent); font-size: .9rem; padding: 0 .1rem; }

.recipe-time {
  margin-left: auto; font-size: .72rem; color: var(--dim);
  white-space: nowrap;
}

/* ── Robot Upgrade Panel ────────────────────────────────────── */
.robot-tech-wrap { margin-top: 1rem; }

.robot-tech-summary {
  font-size: .82rem; color: var(--dim);
  margin-bottom: 1rem;
}

.robot-tech-group {
  background: var(--surf); border: 1px solid var(--border);
  border-radius: 6px; overflow: hidden; margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
}

.robot-tech-header {
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(180deg, var(--surf3) 0%, var(--surf2) 100%);
  padding: .4rem .75rem;
  font-size: .78rem; font-weight: 700;
  border-bottom: 1px solid var(--border);
}

.robot-tech-badge {
  font-size: .72rem; font-weight: 400; color: var(--green);
}

.robot-tech-card {
  display: flex; align-items: center; gap: .6rem; flex-wrap: wrap;
  padding: .5rem .75rem;
  border-top: 1px solid var(--border);
}
.robot-tech-card:first-of-type { border-top: none; }
.robot-tech-card:hover { background: rgba(255,255,255,.02); }

.robot-tech-card.rcard-done    { opacity: .55; }
.robot-tech-card.rcard-current { background: rgba(244,168,58,.05); }
.robot-tech-card.rcard-queued  { background: rgba(58,143,214,.06); border-color: rgba(58,143,214,.3); }

.rcard-name {
  font-size: .82rem; font-weight: 600; min-width: 4.5rem; color: var(--text2);
}

.rcard-cost {
  font-size: .78rem; color: var(--dim); flex: 1;
  display: flex; align-items: center; gap: .2rem; flex-wrap: wrap;
}

.rcard-btn {
  padding: .25rem .7rem; font-size: .78rem; white-space: nowrap;
}

.rcard-progress {
  font-size: .74rem; color: var(--dim);
}

.rcard-hint {
  font-size: .72rem; color: var(--dim); font-style: italic;
  width: 100%; margin-top: -.2rem;
}

.rcard-done-badge {
  font-size: .78rem; color: var(--green); font-weight: 600;
}

/* ── Perimeter Defense Tab ──────────────────────────────────── */

.perimeter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: .5rem;
}

.perimeter-card {
  background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .75rem 1rem;
  box-shadow: var(--shadow-sm);
}

.perimeter-card-wide {
  grid-column: 1 / -1;
}

.perimeter-card-title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: .5rem;
  padding-bottom: .35rem;
  border-bottom: 1px solid var(--border);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.perimeter-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .82rem;
  padding: .18rem 0;
  color: var(--dim);
}

.perimeter-stat-row strong {
  color: var(--text2);
}

.perimeter-btn-row {
  display: flex;
  gap: .35rem;
  margin-top: .5rem;
  flex-wrap: wrap;
}

.perimeter-label {
  font-size: .75rem;
  color: var(--dim);
  display: block;
  margin-bottom: .2rem;
}

.perimeter-select {
  width: 100%;
  background: var(--surf3);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: .78rem;
  padding: .28rem .4rem;
}

.perimeter-wave-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: .25rem;
}

.perimeter-wave-col {
  text-align: center;
  min-width: 80px;
}

.perimeter-range {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text2);
}

.perimeter-outcome {
  margin-top: .5rem;
  font-size: .85rem;
  font-weight: 600;
  padding: .3rem .6rem;
  border-radius: 4px;
  display: inline-block;
}

.perimeter-outcome-ok     { background: rgba(76,175,80,.15); color: var(--green); border: 1px solid rgba(76,175,80,.25); }
.perimeter-outcome-warn   { background: rgba(244,168,58,.12); color: var(--accent); border: 1px solid rgba(244,168,58,.25); }
.perimeter-outcome-danger { background: rgba(224,64,64,.12); color: var(--red); border: 1px solid rgba(224,64,64,.25); }

.wave-preview-layout { display: flex; gap: 10px; align-items: flex-start; }
.wave-preview-stats  { flex: 1; min-width: 0; }
.wave-preview-enemy  { display: flex; flex-direction: column; align-items: center; width: 200px; flex-shrink: 0; }
.wanted-dead-label   { font-size: .68rem; font-weight: 800; color: var(--red); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; text-align: center; white-space: nowrap; }
.wave-enemy-img      { width: 200px; height: 200px; object-fit: cover; border-radius: 6px; border: 2px solid var(--red); }
.wave-stat-compact   { display: flex; justify-content: space-between; font-size: .78rem; margin: 2px 0; gap: 6px; }
.wave-stat-compact strong { color: var(--text2); white-space: nowrap; }

.btn-danger-sm {
  background: transparent;
  border: 1px solid var(--red);
  color: var(--red);
  border-radius: 4px;
  padding: .2rem .5rem;
  font-size: .78rem;
  cursor: pointer;
}
.btn-danger-sm:hover { background: rgba(224,64,64,.12); }

.btn-danger {
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: .65rem 1.75rem;
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: .03em;
  box-shadow: 0 2px 8px rgba(224,64,64,.3);
  font-family: var(--font);
}
.btn-danger:hover { background: #c93232; box-shadow: 0 4px 14px rgba(224,64,64,.45); }

.btn-active-flash {
  filter: brightness(0.6);
  transform: scale(0.97);
  transition: filter 0.05s, transform 0.05s;
}

/* ── Starred Items Bar ──────────────────────────────────────── */

.starred-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .75rem;
  padding: .35rem .75rem;
  background: var(--surf2);
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.starred-item {
  display: flex;
  align-items: center;
  gap: .3rem;
  padding: .15rem .4rem;
  background: var(--surf3);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: .82rem;
  white-space: nowrap;
}

.starred-icon { font-size: .9rem; }

.starred-name {
  color: var(--dim2);
  font-size: .78rem;
}

.starred-count {
  color: var(--text2);
  font-weight: 700;
  min-width: 3ch;
  text-align: right;
}

.starred-rate {
  font-size: .75rem;
  font-family: var(--font-mono);
  min-width: 5ch;
  text-align: right;
}

.rate-pos { color: var(--green); }
.rate-neg { color: var(--red); }

/* ── Star Button ────────────────────────────────────────────── */

.star-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: .95rem;
  color: var(--border2);
  padding: 0 .15rem;
  line-height: 1;
  transition: color .15s;
}
.star-btn:hover  { color: var(--accent); }
.star-btn.starred { color: var(--accent); }

/* ── Graph Tab ──────────────────────────────────────────────── */

.graph-hint {
  color: var(--dim2);
  font-size: .85rem;
  margin-bottom: .75rem;
}

.graph-tabs {
  display: flex;
  gap: .25rem;
  margin: .35rem 0 .4rem;
}
.graph-tab {
  background: var(--surf);
  border: 1px solid var(--border);
  color: var(--text2);
  padding: .35rem .9rem;
  border-radius: 4px 4px 0 0;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.graph-tab:hover { background: var(--surf2); color: var(--text); }
.graph-tab.graph-tab-active {
  background: var(--surf2);
  border-color: var(--accent);
  color: var(--accent);
  border-bottom-color: var(--surf2);
}

.graph-layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: .5rem;
  align-items: stretch;
}

.graph-container {
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .5rem;
  height: 320px;
  min-width: 0;
}

.graph-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.graph-legend {
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .5rem .55rem;
  height: 320px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: .25rem;
}
.graph-legend-row {
  display: grid;
  grid-template-columns: 14px 18px 1fr auto;
  align-items: center;
  gap: .35rem;
  font-size: .76rem;
  color: var(--text2);
  padding: .15rem .1rem;
  border-radius: 3px;
}
.graph-legend-row:hover { background: rgba(255,255,255,0.03); }
.graph-legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  display: inline-block;
}
.graph-legend-icon {
  font-size: .95rem;
  line-height: 1;
  text-align: center;
}
.graph-legend-icon img { width: 16px; height: 16px; vertical-align: middle; }
.graph-legend-name {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.graph-legend-rate {
  font-family: monospace;
  font-size: .72rem;
  color: var(--dim);
}

/* ── Biter warning state ────────────────────────────────────── */

.biter-warning {
  color: var(--red) !important;
  animation: pulse .8s ease-in-out infinite alternate;
}

@keyframes pulse {
  from { opacity: 1; }
  to   { opacity: .55; }
}

/* ── Modal number input ─────────────────────────────────────── */

.modal-number-input {
  background: var(--surf3);
  border: 1px solid var(--border2);
  border-radius: 4px;
  color: var(--text);
  padding: .35rem .6rem;
  font-size: .9rem;
  width: 100px;
}

/* ── Custom Scrollbars ─────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--dim);
}
::-webkit-scrollbar-corner {
  background: var(--bg);
}

/* ── Meta Progression Screen ─────────────────────────────── */
#meta-screen {
  min-height: 100vh; overflow-y: auto;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(244,168,58,.07) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 40%, #192030 0%, #080c11 100%);
  display: flex; justify-content: center;
}
.meta-screen-inner {
  width: 100%; padding: 1.5rem 1.5rem;
}
.meta-screen-header {
  display: flex; align-items: center; gap: 1rem;
  border-bottom: 1px solid var(--border); padding-bottom: 1rem; margin-bottom: 1.25rem;
}
.meta-screen-header h2 { margin: 0; font-size: 1.3rem; color: var(--accent); }
.meta-points-bar {
  display: flex; align-items: center; gap: .75rem;
  margin-bottom: .75rem; font-size: 1rem;
}
.meta-tab-row { display: flex; gap: .5rem; margin-bottom: 1.25rem; }
.meta-content { }

/* Buildings tab */
.meta-section { }
.meta-section-title {
  font-size: 1rem; font-weight: 600; color: var(--text);
  margin-bottom: .75rem; padding-bottom: .35rem; border-bottom: 1px solid var(--border);
}
.meta-building-row {
  display: flex; align-items: center; gap: .75rem;
  padding: .5rem 0; border-bottom: 1px solid rgba(255,255,255,.04);
}
.meta-building-img .item-icon { width: 48px; height: 48px; }
.meta-bldg-desc { font-size: .82rem; color: var(--dim); margin: 0 0 .75rem 0; line-height: 1.5; }
.meta-building-info { flex: 1; display: flex; flex-direction: column; gap: .15rem; }
.meta-building-info strong { font-size: .9rem; }
.meta-building-info span { font-size: .78rem; color: var(--dim); }

/* Perk tree */
.perk-trees {
  display: flex; gap: 1rem; align-items: flex-start;
}
.perk-tree-section {
  flex: 1;
  background: var(--surf); border: 1px solid var(--border);
  border-radius: 8px; padding: .75rem;
}
.perk-tree-header {
  font-weight: 700; font-size: .95rem; color: var(--accent);
  margin-bottom: .6rem; padding-bottom: .3rem; border-bottom: 1px solid var(--border);
}
.perk-tier-row {
  display: flex; align-items: center; gap: .4rem; margin-bottom: .35rem;
}
.perk-tier-label {
  font-size: .6rem; color: var(--dim); min-width: 1.5rem;
  text-align: center; flex-shrink: 0; font-weight: 600;
}
.perk-tier-icons { display: flex; flex-wrap: wrap; gap: .35rem; }
.perk-icon-btn {
  width: 46px; height: 46px; font-size: 1.35rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px; border: 2px solid var(--border);
  background: var(--surf2); cursor: default;
  transition: transform 0.1s, border-color 0.1s;
  user-select: none;
}
.perk-icon-available {
  cursor: pointer; border-color: var(--accent);
  box-shadow: 0 0 6px rgba(244,168,58,.3);
}
.perk-icon-available:hover { transform: scale(1.12); border-color: var(--accent); }
.perk-icon-available:active { transform: scale(0.96); }
.perk-icon-owned {
  border-color: var(--green); opacity: .7;
  background: rgba(80,200,80,.08);
}
.perk-icon-demo { opacity: .35; }
.perk-icon-locked { opacity: .5; }

/* ── Tutorial System ──────────────────────────────────────── */
#tutorial-goal-bar {
  background: rgba(244,168,58,.08);
  border-bottom: 1px solid rgba(244,168,58,.25);
  color: var(--accent);
  font-size: .85rem;
  padding: .4rem 1rem;
  text-align: center;
}

.tutorial-glow { box-shadow: 0 0 14px 4px rgba(244,168,58,.75); }

#base-top-row        { display: flex; gap: 16px; align-items: flex-start; }
#base-right-col      { flex: 1; min-width: 220px; display: flex; flex-direction: column; gap: 12px; }
#tutorial-goal-panel { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 14px; box-sizing: border-box; }
.hub-card            { background: linear-gradient(180deg, var(--surf2) 0%, var(--surf) 100%); border: 1px solid var(--border); border-radius: 8px; padding: .75rem 1rem; }
.hub-card-title      { font-size: .82rem; font-weight: 700; color: var(--accent); margin-bottom: .45rem; text-transform: uppercase; letter-spacing: .04em; }
.hub-stat-row        { display: flex; justify-content: space-between; font-size: .78rem; color: var(--dim2); margin: .18rem 0; }
.hub-stat-row strong { color: var(--text2); font-weight: 600; }
.goal-panel-header   { font-weight: 700; font-size: .88rem; color: var(--accent); margin-bottom: 10px; display: flex; justify-content: space-between; }
.goal-panel-count    { font-weight: 400; color: var(--text2); }
.goal-current-box    { background: var(--bg3); border-radius: 6px; padding: 10px 12px; margin-bottom: 12px; border-left: 3px solid var(--accent); }
.goal-current-text   { font-size: .9rem; font-weight: 600; color: var(--text1); margin-bottom: 5px; line-height: 1.35; }
.goal-progress-text  { font-size: .82rem; color: var(--accent); font-weight: 700; margin-bottom: 5px; }
.goal-sub            { font-size: .8rem; color: var(--text2); margin: 3px 0; }
.goal-sub.done       { color: var(--green); }
.goal-upcoming-label { font-size: .72rem; color: var(--text3); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 5px; }
.goal-upcoming-item  { font-size: .78rem; color: var(--text3); margin: 4px 0; line-height: 1.3; }
.goal-complete       { font-size: 1rem; font-weight: 700; color: var(--accent); text-align: center; padding: 24px 8px; }

/* ── Chest System ──────────────────────────────────── */
.chest-controls        { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; max-width: 480px; }
.chest-tier-row        { display: flex; align-items: center; gap: 8px; }
.chest-tier-label      { width: 110px; font-weight: 600; font-size: .85rem; }
.chest-count           { width: 36px; text-align: right; font-weight: 700; color: var(--accent); }
.chest-locked-note     { font-size: .78rem; color: var(--dim2); padding: 1px 0 1px 118px; font-style: italic; }
.chest-priority-row    { display: flex; align-items: center; gap: 8px; margin-top: 4px; font-size: .82rem; }
.chest-priority-input  { flex: 1; max-width: 200px; background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; color: var(--text1); padding: 3px 6px; font-size: .82rem; }
.chest-rewards-header      { font-weight: 700; font-size: .85rem; color: var(--accent); margin: 10px 0 6px; }
.chest-rewards-tier-label  { font-size: .75rem; font-weight: 700; color: var(--dim2); text-transform: uppercase; letter-spacing: .05em; margin: 8px 0 4px; }
.chest-rewards-tier-label.rare { color: #7aaddf; }
.chest-rewards-grid        { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 6px; }
.chest-reward-card         { background: var(--surf2); border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; min-width: 140px; }
.chest-reward-card.rare-tier { background: rgba(30, 60, 130, 0.90); border-color: #4a7fc1; }
.chest-reward-card.maxed   { border-color: var(--accent); }
.chest-reward-name         { font-size: .78rem; font-weight: 600; color: var(--text2); }
.chest-reward-level        { font-size: .75rem; color: var(--accent); margin: 2px 0; }
.chest-reward-effect       { font-size: .73rem; color: var(--text2); }
.chest-modal-overlay   { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 1000; display: flex; align-items: center; justify-content: center; }
.chest-modal-overlay.hidden { display: none; }
.chest-modal           { background: var(--bg0, #1a1e26); border: 1px solid var(--border); border-radius: 12px; padding: 28px; max-width: 680px; width: 92vw; box-shadow: 0 8px 32px rgba(0,0,0,.7); }
.chest-modal-tier      { font-size: 1.2rem; font-weight: 700; color: var(--accent); margin-bottom: 6px; }
.chest-modal-prompt    { font-size: .9rem; color: var(--text2); margin-bottom: 18px; }
.chest-modal-choices   { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.chest-choice-card     { flex: 1; min-width: 170px; background: var(--surf2); border: 2px solid var(--border); border-radius: 10px; padding: 18px 16px; cursor: pointer; text-align: left; transition: border-color .15s, background .15s; }
.chest-choice-card:hover { border-color: var(--accent); background: var(--surf3); }
.chest-choice-name     { font-size: 1rem; font-weight: 700; color: var(--text2); margin-bottom: 6px; }
.chest-choice-level    { font-size: .82rem; color: var(--text2); margin-bottom: 5px; }
.chest-choice-effect   { font-size: .88rem; color: var(--accent); font-weight: 600; }