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

:root {
  /* ── Dark theme (default) ── */
  --bg:            #0a0a0b;
  --surface:       #111114;
  --surface2:      #1a1a1f;
  --border:        rgba(255,255,255,0.07);
  --border2:       rgba(255,255,255,0.12);
  --text:          #eeeef3;
  --text2:         #888898;
  --text3:         #b8b8cc;
  --green:         #00e5a0;
  --green-dim:     rgba(0,229,160,0.09);
  --green-border:  rgba(0,229,160,0.28);
  --orange:        #ff6b35;
  --orange-dim:    rgba(255,107,53,0.09);
  --orange-border: rgba(255,107,53,0.3);
  --purple:        #7b6ef6;
  --purple-border: rgba(123,110,246,0.3);
  --chip-hover:    rgba(255,255,255,0.22);
  --r:             10px;
  --r-sm:          7px;
}

html[data-theme="light"] {
  --bg:            #f2f2f7;
  --surface:       #ffffff;
  --surface2:      #eaeaf2;
  --border:        rgba(0,0,0,0.07);
  --border2:       rgba(0,0,0,0.13);
  --text:          #0f0f1a;
  --text2:         #606075;
  --text3:         #3e3e55;
  --green:         #009a6a;
  --green-dim:     rgba(0,154,106,0.09);
  --green-border:  rgba(0,154,106,0.28);
  --orange:        #d04a14;
  --orange-dim:    rgba(208,74,20,0.09);
  --orange-border: rgba(208,74,20,0.28);
  --purple:        #5648d4;
  --purple-border: rgba(86,72,212,0.28);
  --chip-hover:    rgba(0,0,0,0.15);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Syne', system-ui, sans-serif;
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.5;
}

/* ── Header ── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border2);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 200;
  height: 58px;
}
.logo { display: flex; align-items: center; gap: 11px; }
.logo-mark {
  width: 32px; height: 32px;
  background: var(--green);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 12px; color: #0a0a0b;
  letter-spacing: -0.5px; flex-shrink: 0;
}
.logo-text { font-size: 15px; font-weight: 700; letter-spacing: -0.3px; }
.logo-sub  { font-size: 11px; color: var(--text2); font-family: 'DM Mono', monospace; }
.header-right { display: flex; align-items: center; gap: 10px; }

/* Mode + Language toggles */
.lang-toggle {
  display: flex;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  overflow: hidden;
}
.lang-btn {
  padding: 5px 10px;
  background: none;
  border: none;
  color: var(--text2);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.12s;
  letter-spacing: 0.04em;
}
.lang-btn:hover { color: var(--text3); }
.lang-btn.active {
  background: var(--purple-border);
  color: var(--purple);
}

/* Mode toggle */
.mode-toggle {
  display: flex;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  overflow: hidden;
}
.mode-btn {
  padding: 5px 14px;
  background: none;
  border: none;
  color: var(--text2);
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.12s;
  letter-spacing: 0.02em;
}
.mode-btn:hover { color: var(--text3); }
.mode-btn.active {
  background: var(--green-dim);
  color: var(--green);
}

.reset-btn {
  background: none;
  border: 1px solid var(--border2);
  color: var(--text2);
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: all 0.12s;
}
.reset-btn:hover { color: var(--text3); background: var(--surface2); }

.theme-btn {
  background: none;
  border: 1px solid var(--border2);
  color: var(--text2);
  font-size: 15px;
  width: 32px; height: 32px;
  border-radius: var(--r-sm);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.12s;
  flex-shrink: 0;
}
.theme-btn:hover { color: var(--text); background: var(--surface2); }

/* Smooth theme switch */
body, header, .top-nav, .filters, .panel, .chip,
.checklist, .tab-nav, .cause-card, .pt-panel, .purge-slot-card {
  transition: background-color 0.18s, border-color 0.18s, color 0.15s;
}

/* ── Layout ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 28px 32px 80px;
}

/* ── Filter card ── */
.filters {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  overflow: hidden;
  margin-bottom: 28px;
}

.filter-section {
  padding: 13px 20px 14px;
  border-bottom: 1px solid var(--border);
}
.filter-section:last-child { border-bottom: none; }

.filter-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.filter-label-col {
  flex-shrink: 0;
  width: 150px;
  padding-top: 7px;
}
.filter-section-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text2);
  display: block;
}
.filter-hint {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--text2);
  opacity: 0.55;
  margin-top: 2px;
  display: block;
}

/* ── Chips ── */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  flex: 1;
}

.chip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: 6px 13px;
  border-radius: 6px;
  border: 1px solid var(--border2);
  background: var(--surface2);
  color: var(--text3);
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s, background 0.12s;
  user-select: none;
  white-space: nowrap;
  text-align: center;
  line-height: 1.3;
}
.chip:hover {
  border-color: var(--chip-hover);
  color: var(--text);
}
.chip.selected {
  background: var(--green-dim);
  border-color: var(--green-border);
  color: var(--green);
}
.chip.selected .chip-desc { color: rgba(0,229,160,0.6); }

.chip-desc {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  font-weight: 400;
  color: var(--text2);
  margin-top: 2px;
  letter-spacing: 0.02em;
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 64px 24px;
}
.empty-icon  { font-size: 20px; color: var(--text2); margin-bottom: 14px; opacity: 0.3; }
.empty-title { font-size: 16px; font-weight: 700; color: var(--text3); margin-bottom: 6px; }
.empty-sub   { font-size: 13px; color: var(--text2); max-width: 320px; margin: 0 auto; line-height: 1.6; }

/* ── Warnings ── */
#warningsBar { margin-bottom: 14px; }
.warning-item {
  display: flex;
  gap: 10px;
  background: var(--orange-dim);
  border: 1px solid var(--orange-border);
  border-radius: var(--r-sm);
  padding: 11px 16px;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--orange);
  line-height: 1.4;
}
.warn-icon { flex-shrink: 0; margin-top: 1px; }

/* ── Results grid ── */
.results-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 16px;
  align-items: start;
}

/* ── Panel ── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  overflow: hidden;
}
.panel-header {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 13px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}
.panel-icon {
  width: 30px; height: 30px;
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 12px; flex-shrink: 0;
}
.filament-icon { background: var(--orange-dim); color: var(--orange); border: 1px solid var(--orange-border); }
.profile-icon  { background: var(--green-dim);  color: var(--green);  border: 1px solid var(--green-border);  }
.panel-title { font-size: 13px; font-weight: 700; }
.panel-sub   { font-size: 11px; color: var(--text2); font-family: 'DM Mono', monospace; margin-top: 1px; }

/* ── Setting rows ── */
.setting-section-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text2);
  padding: 10px 18px 4px;
  border-top: 1px solid var(--border);
}
.setting-section-label:first-child { border-top: none; }

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 8px 18px;
}
.setting-row + .setting-row { border-top: 1px solid var(--border); }

.setting-name  { font-size: 13px; color: var(--text2); flex-shrink: 0; }
.setting-value {
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  text-align: right;
}
.val-temp { color: var(--orange); }
.val-ok   { color: var(--green);  }
.val-no   { color: var(--text2);  }
.val-info { color: var(--purple); }

/* ── Filament notes ── */
.filament-notes {
  padding: 10px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  border-top: 1px solid var(--border);
}
.filament-note {
  font-size: 12px;
  color: var(--text3);
  padding: 7px 10px;
  background: var(--surface2);
  border-radius: var(--r-sm);
  border-left: 2px solid var(--purple-border);
  line-height: 1.45;
}

/* ── Profile tabs ── */
.tab-nav {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}
.tab-btn {
  flex: 1;
  padding: 10px 6px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text2);
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.12s;
  text-align: center;
  margin-bottom: -1px;
}
.tab-btn:hover  { color: var(--text3); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); }

.tab-content         { display: none; }
.tab-content.active  { display: block; }

.no-settings {
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text2);
}

/* Advanced section divider inside tabs */
.adv-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px 4px;
  margin-top: 4px;
}
.adv-divider::before,
.adv-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border2);
}
.adv-divider span {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--purple);
  flex-shrink: 0;
}

/* Advanced label in filament panel */
.adv-label { color: var(--purple) !important; }

.setting-why {
  font-size: 11.5px;
  color: var(--text2);
  font-family: 'DM Mono', monospace;
  padding: 0 18px 10px;
  line-height: 1.5;
  margin-top: -3px;
}

/* ── Pre-print Checklist ── */
.checklist {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  margin-bottom: 20px;
  overflow: hidden;
}
.checklist-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
}
.checklist-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text3);
}
.checklist-count {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--text2);
}
.checklist-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0;
}
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  border-right: 1px solid var(--border);
}
.checklist-item:last-child { border-bottom: none; }
.checklist-icon {
  font-size: 13px;
  color: var(--green);
  flex-shrink: 0;
  margin-top: 1px;
  width: 16px;
  text-align: center;
}
.checklist-item.critical .checklist-icon { color: var(--orange); }
.checklist-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.checklist-step {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
}
.checklist-item.critical .checklist-step { color: var(--orange); }
.checklist-detail {
  font-size: 11px;
  font-family: 'DM Mono', monospace;
  color: var(--text2);
  line-height: 1.5;
}

/* ── Panel header action buttons (Compare + Export) ── */
.panel-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}
.export-btn, .compare-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  color: var(--text2);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  padding: 5px 10px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s;
}
.export-btn:hover { color: var(--text); border-color: var(--border2); }
.compare-btn { display: none; } /* hidden until profile is loaded */
.compare-btn.visible { display: block; }
.compare-btn:hover { color: var(--purple); border-color: var(--purple-border); }
.compare-btn.locked { color: var(--purple); border-color: var(--purple-border); }

/* ── Comparison banner ── */
.compare-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: rgba(123,110,246,0.06);
  border-bottom: 1px solid var(--purple-border);
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--text2);
}
.compare-banner strong { color: var(--purple); }
.compare-col-tags {
  margin-left: auto;
  display: flex;
  gap: 6px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.col-tag-a {
  color: var(--text2);
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 3px;
  padding: 1px 6px;
}
.col-tag-b {
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid var(--green-border);
  border-radius: 3px;
  padding: 1px 6px;
}

/* ── Comparison column header row (A / B labels) ── */
.compare-col-header-row {
  display: grid;
  grid-template-columns: 1fr 72px 72px;
  gap: 8px;
  padding: 4px 16px 2px;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.compare-col-header-row .ch-a { color: var(--text2); text-align: right; }
.compare-col-header-row .ch-b { color: var(--green); text-align: right; }

/* ── Setting row in comparison mode ── */
.setting-row.comparing {
  grid-template-columns: 1fr 72px 72px;
}
.val-cmp-a {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--text2);
  text-align: right;
  opacity: 0.55;
  text-decoration: line-through;
}
.val-cmp-a.same { text-decoration: none; opacity: 0.7; }
.val-cmp-b {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  color: var(--green);
  text-align: right;
  font-weight: 600;
}
.val-cmp-b.same { color: var(--text3); font-weight: 400; }

/* ── Top navigation (Configure / Troubleshoot) ── */
.top-nav {
  display: flex;
  gap: 4px;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.nav-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text2);
  font-family: 'Syne', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 12px 16px;
  cursor: pointer;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}
.nav-btn:hover   { color: var(--text); }
.nav-btn.active  { color: var(--green); border-bottom-color: var(--green); }

/* ── Troubleshooter view ── */
.trouble-hero {
  padding: 32px 0 20px;
  text-align: center;
}
.trouble-hero-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}
.trouble-hero-sub {
  font-size: 14px;
  color: var(--text2);
}

/* Symptom chips grid */
.trouble-symptom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 10px;
  margin-bottom: 28px;
}
.symptom-chip {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 14px 16px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-align: left;
}
.symptom-chip:hover { border-color: var(--green-border); background: var(--green-dim); }
.symptom-chip.active {
  border-color: var(--green);
  background: var(--green-dim);
  box-shadow: 0 0 0 1px var(--green);
}
.symptom-icon { font-size: 22px; line-height: 1; margin-bottom: 2px; }
.symptom-name { font-size: 13px; font-weight: 700; color: var(--text); }
.symptom-desc { font-size: 11px; color: var(--text2); font-family: 'DM Mono', monospace; }

/* Cause cards */
.trouble-results-header {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text2);
  padding: 0 0 12px;
}
.cause-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 40px; }
.cause-card {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 16px 18px;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 0 14px;
}
.cause-card.dimmed { opacity: 0.45; }
.cause-rank {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text2);
  font-family: 'DM Mono', monospace;
  flex-shrink: 0;
  margin-top: 1px;
}
.cause-card.relevant .cause-rank {
  background: var(--green-dim);
  border-color: var(--green-border);
  color: var(--green);
}
.cause-body { display: flex; flex-direction: column; gap: 5px; }
.cause-title { font-size: 14px; font-weight: 700; color: var(--text); }
.cause-detail { font-size: 13px; color: var(--text3); line-height: 1.5; }
.cause-fix-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 6px;
  background: var(--surface2);
  border-radius: var(--r-sm);
  padding: 8px 10px;
}
.cause-setting-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  font-family: 'DM Mono', monospace;
}
.cause-fix {
  font-size: 12px;
  color: var(--text3);
  font-family: 'DM Mono', monospace;
  line-height: 1.5;
}

/* ── AMS Purge Calculator ── */
.purge-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 14px 18px;
}
.purge-control-group { display: flex; align-items: center; gap: 10px; }
.purge-label { font-size: 12px; font-weight: 700; color: var(--text2); letter-spacing: 0.06em; text-transform: uppercase; }
.purge-slot-btns { display: flex; gap: 4px; }
.purge-slot-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  color: var(--text2);
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  cursor: pointer;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
}
.purge-slot-btn.active  { color: var(--green); border-color: var(--green); background: var(--green-dim); }
.purge-mat-note { font-size: 12px; color: var(--text2); font-family: 'DM Mono', monospace; }
.purge-mat-note.dimmed { opacity: 0.5; }

/* Slot configuration cards */
.purge-slots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}
.purge-slot-card {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.purge-slot-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--surface2);
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text2);
  flex-shrink: 0;
}
.purge-slot-name {
  background: none;
  border: none;
  border-bottom: 1px solid var(--border2);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  width: 80px;
  padding: 2px 4px;
  outline: none;
  transition: border-color 0.15s;
}
.purge-slot-name:focus { border-bottom-color: var(--green); }
.purge-brightness-btns { display: flex; gap: 3px; margin-left: auto; }
.purge-bright-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 4px;
  color: var(--text2);
  font-size: 10px;
  font-weight: 600;
  padding: 3px 7px;
  cursor: pointer;
  text-transform: capitalize;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
}
.purge-bright-btn.active { color: var(--green); border-color: var(--green-border); background: var(--green-dim); }

/* Tip banner */
.purge-tip {
  background: var(--orange-dim);
  border: 1px solid var(--orange-border);
  border-radius: var(--r-sm);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text3);
  margin-bottom: 18px;
  line-height: 1.5;
}

/* Matrix */
.purge-matrix-wrap { margin-bottom: 40px; }
.purge-matrix-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text2);
  margin-bottom: 10px;
}
.purge-matrix-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.purge-matrix {
  border-collapse: collapse;
  font-family: 'DM Mono', monospace;
  font-size: 13px;
  min-width: 100%;
}
.purge-matrix th, .purge-matrix td { padding: 8px 12px; text-align: center; white-space: nowrap; }
.purge-th-corner { background: var(--surface); color: var(--text2); font-size: 10px; text-align: left; border: 1px solid var(--border2); }
.purge-th { background: var(--surface); color: var(--text2); font-size: 11px; border: 1px solid var(--border2); }
.purge-row-label { background: var(--surface); color: var(--text2); font-size: 11px; text-align: left; border: 1px solid var(--border2); font-weight: 600; }
.purge-cell { border: 1px solid var(--border2); font-weight: 600; }
.cell-same { color: var(--text2); background: var(--surface); }
.cell-low  { color: #00c97a; background: rgba(0,201,122,0.08); }
.cell-mid  { color: #e8c840; background: rgba(232,200,64,0.08); }
.cell-high { color: var(--orange); background: var(--orange-dim); }
.cell-crit { color: #ff3b3b; background: rgba(255,59,59,0.1); }

/* Legend */
.purge-legend {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.legend-item {
  font-size: 11px;
  font-family: 'DM Mono', monospace;
  padding: 3px 8px;
  border-radius: 4px;
}
.legend-unit { font-size: 11px; color: var(--text2); font-family: 'DM Mono', monospace; margin-left: auto; }

/* ── Filter collapse toggle (mobile only) ── */
.filter-toggle {
  display: none;
  margin-left: auto;
  color: var(--text2);
  font-size: 16px;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.18s ease;
  padding-left: 8px;
}
.filter-section.collapsed .filter-toggle { transform: rotate(-90deg); }
.filter-section.collapsed .chips         { display: none; }

/* ── Selected-in-collapsed indicator ── */
.filter-section.collapsed .filter-section-label::after {
  content: attr(data-count);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 7px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--green-dim);
  border: 1px solid var(--green-border);
  color: var(--green);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  font-weight: 500;
}
.filter-section.collapsed .filter-section-label[data-count=""]::after,
.filter-section.collapsed .filter-section-label[data-count="0"]::after { display: none; }

/* ── Responsive — Tablet 768px ── */
@media (max-width: 768px) {

  /* Header */
  header                { padding: 0 16px; height: 52px; }
  .logo-sub             { display: none; }
  .reset-btn            { padding: 5px 10px; font-size: 11px; }
  .mode-btn             { padding: 5px 10px; font-size: 11px; }

  /* Container */
  .container            { padding: 16px 16px 60px; }

  /* Top nav */
  .top-nav       { padding: 0 16px; }
  .nav-btn       { padding: 10px 12px; font-size: 12px; }

  /* Troubleshooter */
  .trouble-symptom-grid { grid-template-columns: repeat(2, 1fr); }
  .trouble-hero-title   { font-size: 18px; }
  .cause-card           { grid-template-columns: 24px 1fr; gap: 0 10px; padding: 12px 14px; }
  .cause-rank           { width: 24px; height: 24px; font-size: 10px; }

  /* Filter layout — stack label above chips */
  .filter-section       { padding: 11px 14px 13px; }
  .filter-row           { flex-direction: column; gap: 8px; }
  .filter-label-col     { width: auto; padding-top: 0; display: flex; align-items: center; cursor: pointer; user-select: none; }
  .filter-toggle        { display: block; }

  /* Chips — larger touch targets */
  .chip                 { min-height: 44px; padding: 8px 12px; }

  /* Results grid — single column */
  .results-grid         { grid-template-columns: 1fr; }

  /* Checklist — single column */
  .checklist-items      { grid-template-columns: 1fr; }
  .checklist-item:last-child { border-bottom: 1px solid var(--border); }
  .checklist-item             { border-right: none; }

  /* Tab nav — horizontally scrollable */
  .tab-nav              { overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .tab-nav::-webkit-scrollbar { display: none; }
  .tab-btn              { flex: none; white-space: nowrap; padding: 10px 8px; }

  /* Setting rows — value wraps gracefully */
  .setting-row          { flex-wrap: wrap; gap: 2px; }
  .setting-value        { text-align: left; }

  /* Warnings */
  .warning-item         { font-size: 12px; }
}

/* ── Responsive — Mobile 480px ── */
@media (max-width: 480px) {
  .panel-header         { padding: 11px 14px; }
  .panel-sub            { display: none; }
  .setting-row          { padding: 8px 14px; }
  .setting-section-label { padding: 8px 14px 4px; }
  .setting-why          { padding: 0 14px 8px; }
  .filament-notes       { padding: 8px 10px 12px; }
  .checklist-header     { padding: 10px 14px; }
  .checklist-item       { padding: 10px 12px; }
  .adv-divider          { padding: 8px 14px 4px; }
  .no-settings          { padding: 12px 14px; }
}

/* ── Print Time Estimator ── */
.pt-panel {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  padding: 20px 24px;
  margin-bottom: 16px;
}
.pt-header { margin-bottom: 16px; }
.pt-title-group { display: flex; flex-direction: column; gap: 2px; }
.pt-title { font-size: 13px; font-weight: 600; color: var(--text1); }
.pt-sub { font-size: 11px; color: var(--text3); }
.pt-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}
.pt-field { display: flex; flex-direction: column; gap: 4px; }
.pt-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--text3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.pt-input {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--r-sm);
  color: var(--text1);
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  padding: 6px 8px;
  width: 80px;
  outline: none;
  transition: border-color 0.12s;
}
.pt-input:focus { border-color: var(--green); }
select.pt-input { width: 90px; cursor: pointer; appearance: none; }
.pt-result { border-top: 1px solid var(--border1); padding-top: 16px; }
.pt-result-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--text3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.pt-time-range {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}
.pt-time-low  { font-size: 26px; font-weight: 700; color: var(--green);  font-family: 'Syne', sans-serif; }
.pt-time-sep  { font-size: 18px; color: var(--text3); }
.pt-time-high { font-size: 26px; font-weight: 700; color: var(--text2);  font-family: 'Syne', sans-serif; }
.pt-meta { font-size: 11px; color: var(--text3); font-family: 'DM Mono', monospace; margin-bottom: 6px; }
.pt-disclaimer { font-size: 10px; color: var(--text3); opacity: 0.7; font-style: italic; }

/* ── Footer ── */
footer {
  text-align: center;
  padding: 24px;
  color: var(--text2);
  font-size: 11px;
  font-family: 'DM Mono', monospace;
  border-top: 1px solid var(--border);
  margin-top: 60px;
}