/* ============================================================
   WUMPUS WORLD – FULL INTERACTIVE STYLESHEET
   ============================================================ */

/* ── Variables ── */
:root {
  --bg:          #0d1117;
  --surface:     #161b22;
  --surface2:    #21262d;
  --surface3:    #2d333b;
  --border:      #30363d;
  --accent:      #58a6ff;
  --accent2:     #3fb950;
  --accent3:     #d2a8ff;
  --danger:      #f85149;
  --warning:     #d29922;
  --text:        #c9d1d9;
  --text-dim:    #8b949e;
  --text-faint:  #484f58;
  --radius:      10px;
  --radius-sm:   6px;
  --shadow:      0 8px 32px rgba(0,0,0,0.45);
  --transition:  0.2s ease;

  --col-agent:    #1a3a6e;
  --col-safe:     #0d2b1d;
  --col-frontier: #122212;
  --col-unknown:  #1c2128;
  --col-danger:   #2d0a0a;
  --col-start:    #0d2233;
  --col-gold:     #2d2200;

  --panel-w: 250px;
  --header-h: 54px;
}

/* Light theme */
body.light {
  --bg:       #f6f8fa;
  --surface:  #ffffff;
  --surface2: #f0f2f5;
  --surface3: #e4e8ec;
  --border:   #d0d7de;
  --text:     #1f2328;
  --text-dim: #57606a;
  --text-faint: #b0b8c1;
  --col-unknown: #eaecef;
  --col-safe:    #d4f5df;
  --col-frontier:#e8f5e9;
  --col-agent:   #cce4ff;
  --col-danger:  #ffe0de;
  --col-start:   #d4eaff;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 13px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: background var(--transition), color var(--transition);
}

/* ══════════════════════════════════════
   LOADING SCREEN
   ══════════════════════════════════════ */
#loadingScreen {
  position: fixed;
  inset: 0;
  background: #0d1117;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#loadingScreen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.loader-icon {
  font-size: 3.5rem;
  animation: bounce 1s ease infinite;
}
.loader-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: #58a6ff;
  letter-spacing: -0.5px;
}
.loader-sub {
  font-size: 0.8rem;
  color: #8b949e;
}
.loader-bar {
  width: 200px;
  height: 3px;
  background: #21262d;
  border-radius: 99px;
  overflow: hidden;
}
.loader-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #58a6ff, #3fb950);
  border-radius: 99px;
  animation: loadFill 1.2s ease forwards;
}
@keyframes loadFill { to { width: 100%; } }
@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

/* ══════════════════════════════════════
   TOAST
   ══════════════════════════════════════ */
#toastContainer {
  position: fixed;
  top: 70px;
  right: 18px;
  z-index: 8000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.78rem;
  color: var(--text);
  box-shadow: var(--shadow);
  min-width: 220px;
  max-width: 300px;
  pointer-events: all;
  animation: slideIn 0.3s ease, fadeOut 0.4s ease 2.6s forwards;
  position: relative;
  overflow: hidden;
}
.toast::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  height: 2px;
  width: 100%;
  background: var(--accent);
  animation: toastTimer 3s linear forwards;
}
.toast.success { border-left-color: var(--accent2); }
.toast.success::after { background: var(--accent2); }
.toast.danger  { border-left-color: var(--danger); }
.toast.danger::after  { background: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast.warning::after { background: var(--warning); }

@keyframes slideIn  { from { transform: translateX(120%); opacity:0; } to { transform: translateX(0); opacity:1; } }
@keyframes fadeOut  { to   { opacity: 0; transform: translateX(120%); } }
@keyframes toastTimer { from { width:100%; } to { width:0%; } }

/* ══════════════════════════════════════
   MODAL
   ══════════════════════════════════════ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 7000;
  transition: opacity var(--transition);
}
.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: min(600px, 92vw);
  box-shadow: var(--shadow);
  animation: modalPop 0.3s cubic-bezier(0.34,1.56,0.64,1);
  overflow: hidden;
}
@keyframes modalPop {
  from { transform: scale(0.8); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.95rem;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
}
.modal-close:hover { background: var(--surface2); color: var(--text); }
.modal-body { padding: 20px; }
.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.help-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 12px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition);
}
.help-card:hover { transform: translateY(-2px); border-color: var(--accent); }
.help-icon  { font-size: 1.6rem; margin-bottom: 6px; }
.help-title { font-weight: 600; font-size: 0.8rem; margin-bottom: 4px; }
.help-desc  { font-size: 0.72rem; color: var(--text-dim); line-height: 1.5; }

/* ══════════════════════════════════════
   HEADER
   ══════════════════════════════════════ */
#mainHeader {
  height: var(--header-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 500;
  flex-shrink: 0;
}
.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  gap: 12px;
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { font-size: 1.5rem; }
.logo-text  { display: flex; flex-direction: column; line-height: 1.2; }
.logo-main  { font-size: 0.95rem; font-weight: 700; color: var(--accent); }
.logo-sub   { font-size: 0.62rem; color: var(--text-faint); }

.header-center { flex: 1; display: flex; justify-content: center; }
.live-indicator {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.75rem;
  color: var(--text-dim);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 4px 12px;
}
.live-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-faint);
  transition: background var(--transition);
}
.live-dot.active  { background: var(--accent2); animation: blink 1.2s ease infinite; }
.live-dot.danger  { background: var(--danger); }
.live-dot.success { background: gold; }
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0.3; } }

.header-right { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 5px 9px;
  transition: background var(--transition), color var(--transition), transform 0.1s;
}
.icon-btn:hover { background: var(--surface3); color: var(--text); transform: scale(1.05); }

/* ══════════════════════════════════════
   MAIN LAYOUT
   ══════════════════════════════════════ */
#mainLayout {
  display: grid;
  grid-template-columns: var(--panel-w) 1fr var(--panel-w);
  flex: 1;
  overflow: hidden;
  height: calc(100vh - var(--header-h));
  transition: grid-template-columns var(--transition);
}
#mainLayout.left-collapsed  { grid-template-columns: 36px 1fr var(--panel-w); }
#mainLayout.right-collapsed { grid-template-columns: var(--panel-w) 1fr 36px; }
#mainLayout.both-collapsed  { grid-template-columns: 36px 1fr 36px; }

/* ── Panel Base ── */
.panel {
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: width var(--transition);
}
.right-panel { border-right: none; border-left: 1px solid var(--border); }

.panel-content {
  overflow-y: auto;
  flex: 1;
  padding: 10px 10px 20px;
  transition: opacity var(--transition);
}
.panel.collapsed .panel-content { opacity: 0; pointer-events: none; }

.panel-toggle {
  position: absolute;
  top: 50%;
  right: -12px;
  transform: translateY(-50%);
  width: 22px; height: 40px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 0 6px 6px 0;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.6rem;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.panel-toggle:hover { background: var(--surface3); color: var(--text); }
.panel-toggle.right { right: auto; left: -12px; border-radius: 6px 0 0 6px; }

/* ── Panel Sections ── */
.panel-section {
  margin-bottom: 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface2);
}
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
  background: var(--surface2);
}
.section-header:hover { background: var(--surface3); color: var(--text); }
.collapse-arrow {
  transition: transform 0.25s ease;
  font-size: 0.7rem;
}
.section-header.collapsed .collapse-arrow { transform: rotate(-90deg); }
.section-body {
  padding: 8px;
  background: var(--surface);
  transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.2s ease;
  overflow: hidden;
}
.section-body.collapsed { max-height: 0 !important; padding-top:0; padding-bottom:0; opacity:0; }

/* ── Sliders ── */
.form-group { margin-bottom: 10px; }
.form-group label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 5px;
}
.val-badge {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 600;
  min-width: 36px;
  text-align: center;
}
.slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--surface3);
  border-radius: 99px;
  outline: none;
  cursor: pointer;
  transition: background var(--transition);
}
.slider:hover { background: var(--border); }
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 0 3px rgba(88,166,255,0.2);
  transition: transform 0.15s, box-shadow 0.15s;
}
.slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 5px rgba(88,166,255,0.3);
}
.slider::-moz-range-thumb {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

/* ── Buttons ── */
.btn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 7px 6px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.74rem;
  font-weight: 600;
  transition: opacity var(--transition), transform 0.12s, box-shadow var(--transition);
  white-space: nowrap;
}
#btnNew { grid-column: 1 / -1; }
.btn-icon { font-size: 0.85rem; }
.btn:disabled { opacity: 0.3; cursor: not-allowed; transform: none !important; }
.btn:not(:disabled):hover  { opacity: 0.88; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
.btn:not(:disabled):active { transform: scale(0.97); }

.btn-primary   { background: var(--accent);  color: #000; }
.btn-secondary { background: var(--surface3); color: var(--text); border: 1px solid var(--border); }
.btn-success   { background: var(--accent2); color: #000; }
.btn-danger    { background: var(--danger);  color: #fff; }
.btn-warning   { background: var(--warning); color: #000; }

/* ── Legend ── */
.legend { display: flex; flex-direction: column; gap: 5px; }
.legend-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.74rem; color: var(--text-dim);
  padding: 3px 6px;
  border-radius: 4px;
  cursor: default;
  transition: background var(--transition);
}
.legend-item:hover { background: var(--surface2); color: var(--text); }
.leg-box {
  width: 14px; height: 14px; border-radius: 4px;
  border: 1px solid var(--border); flex-shrink: 0;
}
.leg-box.agent    { background: var(--col-agent); border-color: #58a6ff; }
.leg-box.safe     { background: var(--col-safe);  border-color: #2ea043; }
.leg-box.frontier { background: var(--col-frontier); border-color: var(--accent2); }
.leg-box.unknown  { background: var(--col-unknown); }
.leg-box.danger   { background: var(--col-danger); border-color: var(--danger); }
.leg-box.start    { background: var(--col-start);  border-color: #58a6ff; }

/* ── Status ── */
.status-box {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 10px;
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--text-dim);
  min-height: 52px;
  transition: border-left-color 0.4s;
  margin: 0 -2px;
}
.status-box b   { color: var(--accent); }
.status-box.ok  { border-left-color: var(--accent2); }
.status-box.bad { border-left-color: var(--danger);  }
.status-box.win { border-left-color: gold; }

/* ══════════════════════════════════════
   CENTER PANEL
   ══════════════════════════════════════ */
.center-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg);
  overflow: hidden;
  position: relative;
}

/* ── Percept Bar ── */
.percept-bar {
  width: 100%;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  height: 40px;
  gap: 0;
  flex-shrink: 0;
}
.percept-item {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 14px;
}
.percept-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
}
.percept-label { font-size: 0.68rem; color: var(--text-faint); white-space: nowrap; }
.percept-value {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  transition: color 0.3s;
}

/* ── Grid Wrapper ── */
#gridWrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: auto;
  position: relative;
}

/* ── Overlay ── */
#gridOverlay {
  position: absolute;
  inset: 0;
  background: rgba(13,17,23,0.88);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  border-radius: var(--radius);
  transition: opacity 0.3s;
}
#gridOverlay.hidden { display: none; }
.overlay-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
#overlayIcon  { font-size: 3rem; animation: bounce 1.5s ease infinite; }
#overlayTitle { font-size: 1.2rem; font-weight: 700; color: var(--accent); }
#overlayMsg   { font-size: 0.8rem; color: var(--text-dim); }

/* ── Grid Container ── */
#gridContainer {
  display: inline-grid;
  gap: 5px;
  background: var(--surface2);
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* ── Cells ── */
.cell {
  width: 88px;
  height: 88px;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  overflow: visible;
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    transform 0.15s ease,
    box-shadow 0.2s ease;
  user-select: none;
}

/* Hover lift */
.cell:hover {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  z-index: 10;
  border-color: var(--accent) !important;
}

/* ── Cell State colours ── */
.cell.state-unknown  { background: var(--col-unknown); }
.cell.state-safe     { background: var(--col-safe);     border-color: #2ea04355; }
.cell.state-frontier { background: var(--col-frontier); border-color: #3fb95055; }
.cell.state-agent    { background: var(--col-agent);    border-color: #58a6ff88; }
.cell.state-danger   { background: var(--col-danger);   border-color: #f8514966; }
.cell.state-start    { background: var(--col-start);    border-color: #58a6ff44; }

/* ── Enter animation ── */
.cell.just-visited {
  animation: cellVisit 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes cellVisit {
  from { transform: scale(0.8); opacity: 0.5; }
  to   { transform: scale(1);   opacity: 1;   }
}
.cell.just-inferred {
  animation: cellInfer 0.4s ease;
}
@keyframes cellInfer {
  0%   { box-shadow: 0 0 0 0 rgba(63,185,80,0.6); }
  100% { box-shadow: 0 0 0 12px rgba(63,185,80,0); }
}

/* ── Agent pulse ── */
.cell.state-agent::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 13px;
  animation: agentPulse 1.4s ease-in-out infinite;
  pointer-events: none;
}
@keyframes agentPulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(88,166,255,0.5); }
  50%      { box-shadow: 0 0 0 8px rgba(88,166,255,0); }
}

/* ── Cell inner elements ── */
.cell-coord {
  position: absolute;
  top: 4px; left: 5px;
  font-size: 0.58rem;
  color: rgba(255,255,255,0.25);
  font-family: monospace;
}
body.light .cell-coord { color: rgba(0,0,0,0.2); }

.cell-icon {
  font-size: 1.75rem;
  line-height: 1;
  pointer-events: none;
  transition: transform 0.2s;
}
.cell:hover .cell-icon { transform: scale(1.1); }

.cell-percepts {
  position: absolute;
  bottom: 4px;
  display: flex;
  gap: 2px;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0 2px;
}
.percept-badge {
  font-size: 0.52rem;
  padding: 1px 3px;
  border-radius: 3px;
  font-weight: 700;
  letter-spacing: 0.3px;
  line-height: 1.4;
}
.pb-breeze  { background: #1c3a5e; color: #58a6ff; }
.pb-stench  { background: #3a1c1c; color: #f0a0a0; }
.pb-glitter { background: #3a350a; color: #ffd700; }
body.light .pb-breeze  { background: #dbeafe; color: #1d4ed8; }
body.light .pb-stench  { background: #fee2e2; color: #b91c1c; }
body.light .pb-glitter { background: #fef9c3; color: #854d0e; }

/* ── Floating cell tooltip ── */
.cell-tooltip {
  position: fixed;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 13px;
  font-size: 0.72rem;
  color: var(--text);
  pointer-events: none;
  z-index: 9000;
  min-width: 160px;
  box-shadow: var(--shadow);
  line-height: 1.7;
  transition: opacity 0.15s;
}
.cell-tooltip.hidden { opacity: 0; }
.tooltip-title { font-weight: 700; color: var(--accent); margin-bottom: 4px; font-size: 0.78rem; }
.tooltip-row   { display: flex; justify-content: space-between; gap: 14px; }
.tooltip-key   { color: var(--text-dim); }
.tooltip-val   { font-weight: 600; }
.tooltip-val.yes { color: var(--danger); }
.tooltip-val.no  { color: var(--accent2); }

/* ══════════════════════════════════════
   RIGHT PANEL – METRICS
   ══════════════════════════════════════ */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.metric-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 9px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: border-color var(--transition), transform var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.metric-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.result-card { grid-column: 1 / -1; }

.metric-icon { font-size: 1rem; margin-bottom: 2px; }
.metric-title { font-size: 0.65rem; color: var(--text-dim); }
.metric-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  transition: color 0.3s;
}
.metric-info { flex: 1; }

.metric-bar-wrap {
  height: 2px;
  background: var(--surface3);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 4px;
}
.metric-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 99px;
  transition: width 0.5s ease;
}

/* ── Number change flash ── */
@keyframes numFlash {
  0%   { color: gold; transform: scale(1.2); }
  100% { color: var(--accent); transform: scale(1); }
}
.metric-value.changed { animation: numFlash 0.4s ease forwards; }

/* ── Log ── */
.log-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 5px;
  flex-wrap: wrap;
}
.log-filter {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 0.68rem;
  cursor: pointer;
  color: var(--text-dim);
}
.log-filter input { cursor: pointer; accent-color: var(--accent); }
.fc-info  { color: var(--accent2); }
.fc-step  { color: var(--accent); }
.fc-warn  { color: var(--warning); }
.fc-error { color: var(--danger); }

.kb-log {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 7px;
  height: 150px;
  overflow-y: auto;
  font-size: 0.68rem;
  font-family: 'Courier New', monospace;
  color: var(--text-dim);
  line-height: 1.55;
}
.kb-log p { margin-bottom: 1px; padding: 1px 0; }
.kb-log p.info   { color: var(--accent2); }
.kb-log p.warn   { color: var(--warning); }
.kb-log p.error  { color: var(--danger); }
.kb-log p.step   { color: var(--accent); }
.kb-log p.hidden-entry { display: none; }

/* KB search */
.kb-search-wrap { margin-bottom: 5px; }
.kb-search {
  width: 100%;
  padding: 5px 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  font-size: 0.72rem;
  outline: none;
  transition: border-color var(--transition);
}
.kb-search:focus { border-color: var(--accent); }

/* Count badge */
.count-badge {
  background: var(--surface3);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: 1px 7px;
  font-size: 0.65rem;
  color: var(--accent);
  font-weight: 700;
}

/* Clear btn */
.clear-btn {
  background: none;
  border: none;
  color: var(--text-faint);
  cursor: pointer;
  font-size: 0.75rem;
  padding: 2px 4px;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
}
.clear-btn:hover { color: var(--danger); background: var(--surface3); }

/* ══════════════════════════════════════
   SCROLLBARS
   ══════════════════════════════════════ */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media (max-width: 960px) {
  #mainLayout {
    grid-template-columns: 1fr !important;
    grid-template-rows: auto 1fr auto;
    height: auto;
    overflow: auto;
  }
  .panel { height: auto; max-height: 300px; border: none; border-bottom: 1px solid var(--border); }
  .panel-toggle { display: none; }
  .center-panel { height: 60vw; min-height: 340px; }
  .cell { width: 60px; height: 60px; }
  .cell-icon { font-size: 1.3rem; }
  body { overflow: auto; }
}

@media (max-width: 600px) {
  .cell { width: 48px; height: 48px; }
  .cell-icon { font-size: 1rem; }
  .percept-bar { overflow-x: auto; }
  .metrics-grid { grid-template-columns: 1fr; }
}