/* ================================================================
   MAFER Solver – Styles (mobile-first, responsive)
   ================================================================ */

/* ── Tokens ── */
:root {
  --c-bg: #f1f5f9;
  --c-surface: #ffffff;
  --c-surface-alt: #f8fafc;
  --c-border: #e2e8f0;
  --c-border-focus: #93c5fd;
  --c-text: #1e293b;
  --c-text-muted: #64748b;
  --c-primary: #2563eb;
  --c-primary-hover: #1d4ed8;
  --c-primary-light: #dbeafe;
  --c-success: #16a34a;
  --c-error: #dc2626;
  --c-warning: #d97706;
  --c-bar: #3b82f6;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", Menlo, Consolas, monospace;

  --radius: 8px;
  --radius-sm: 4px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
  --transition: 150ms ease;

  /* Safe area insets for notched phones */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  min-height: 100vh;
  min-height: 100dvh;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}
h1,h2,h3 { font-weight: 600; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 6px 10px; border-bottom: 1px solid var(--c-border); }
th { font-weight: 600; font-size: .82rem; color: var(--c-text-muted); text-transform: uppercase; letter-spacing: .03em; background: var(--c-surface-alt); position: sticky; top: 0; z-index: 1; }
input, textarea, select { font-family: inherit; font-size: inherit; }
textarea { resize: vertical; }
fieldset { border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 12px; }
legend { font-weight: 600; font-size: .85rem; padding: 0 6px; color: var(--c-text-muted); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 6px 14px; border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  background: var(--c-surface); color: var(--c-text); font-weight: 500;
  cursor: pointer; transition: all var(--transition); font-size: .85rem;
  white-space: nowrap;
  min-height: 36px;
}
.btn:hover { background: var(--c-surface-alt); border-color: #cbd5e1; }
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .45; cursor: not-allowed; pointer-events: none; }
.btn-sm { padding: 3px 10px; font-size: .8rem; min-height: 32px; }
.btn-lg { padding: 10px 28px; font-size: 1rem; min-height: 44px; }
.btn-primary { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.btn-primary:hover { background: var(--c-primary-hover); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--c-primary); }
.btn-ghost:hover { background: var(--c-primary-light); }

/* ── Chips ── */
.chip {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  font-size: .75rem; font-weight: 600; background: rgba(255,255,255,.15); color: rgba(255,255,255,.85);
}
.chip-clickable {
  cursor: pointer; transition: background var(--transition), color var(--transition);
}
.chip-clickable:hover { background: rgba(255,255,255,.3); color: #fff; }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,.45);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  animation: fadeIn 120ms ease;
}
.modal-overlay[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0 } to { opacity: 1 } }

.modal {
  background: var(--c-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%; max-width: 760px;
  max-height: 85vh;
  display: flex; flex-direction: column;
  animation: slideUp 160ms ease;
}
@keyframes slideUp { from { transform: translateY(12px); opacity: 0 } to { transform: none; opacity: 1 } }

.modal-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--c-border);
  position: relative;
}
.modal-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 2px; }
.modal-subtitle { font-size: .8rem; color: var(--c-text-muted); }
.modal-close {
  position: absolute; top: 16px; right: 18px;
  background: none; border: none; font-size: 1.4rem; line-height: 1;
  color: var(--c-text-muted); cursor: pointer; padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.modal-close:hover { background: var(--c-surface-alt); color: var(--c-text); }

.modal-body { padding: 16px 24px 24px; display: flex; flex-direction: column; gap: 12px; overflow: hidden; }

.modal-search-row { display: flex; align-items: center; gap: 10px; }
.modal-search {
  flex: 1; padding: 7px 12px; border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); background: var(--c-surface-alt);
  font-size: .85rem; outline: none;
}
.modal-search:focus { border-color: var(--c-border-focus); background: var(--c-surface); }
.modal-count { font-size: .8rem; color: var(--c-text-muted); white-space: nowrap; }

.modal-table-wrap { overflow-y: auto; flex: 1; border: 1px solid var(--c-border); border-radius: var(--radius-sm); }
.modal-table-wrap table { font-size: .85rem; }
.modal-table-wrap td.text-right { text-align: right; font-variant-numeric: tabular-nums; }

/* ── Top bar ── */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 52px;
  background: #0f172a; color: #f8fafc;
  padding-top: var(--safe-top);
}
.topbar-left { flex-shrink: 0; }
.topbar-center { flex: 1; display: flex; justify-content: center; }
.topbar-right { flex-shrink: 0; display: flex; gap: 8px; align-items: center; }
.logo { font-size: 1.1rem; font-weight: 700; letter-spacing: -.02em; display: flex; align-items: center; gap: 6px; }
.logo-img { height: 1.6rem; width: auto; display: block; }
.logo-accent { color: #60a5fa; font-weight: 400; }

/* ── Config dropdown in topbar ── */
.config-dropdown-wrapper {
  position: relative;
}
.config-toggle {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.15);
  color: rgba(255,255,255,.85);
  font-size: .8rem;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.config-toggle:hover {
  background: rgba(255,255,255,.18);
  border-color: rgba(255,255,255,.25);
  color: #fff;
}
.config-toggle svg { opacity: .7; }
.config-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 380px;
  max-height: calc(100vh - 80px);
  max-height: calc(100dvh - 80px);
  overflow-y: auto;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 100;
  color: var(--c-text);
}
.config-dropdown-body {
  padding: 16px;
}
.config-dropdown .fieldset + .fieldset {
  margin-top: 12px;
}

/* ── Mode tabs ── */
.mode-tabs {
  display: flex; gap: 2px;
  background: rgba(255,255,255,.08);
  border-radius: 6px;
  padding: 3px;
}
.mode-tab {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 22px;
  border: none; border-radius: 5px;
  background: transparent; color: rgba(255,255,255,.55);
  font-size: .95rem; font-weight: 500; cursor: pointer;
  transition: all var(--transition);
}
.mode-tab svg { opacity: .6; }
.mode-tab:hover {
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.06);
}
.mode-tab.active {
  background: rgba(255,255,255,.15);
  color: #fff;
  font-weight: 600;
}
.mode-tab.active svg { opacity: 1; }
.mode-tab[hidden] { display: none !important; }
a.mode-tab { text-decoration: none; }

/* ── Workspace (2-column) ── */
.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 16px 24px;
  max-width: 1600px;
  margin: 0 auto;
}

/* Formula mode: 50/50 split */
#mode-formula {
  grid-template-columns: 1fr 1fr;
}

/* Analysis mode: 2-column (Chromatography Results left, Analysis right) */
#mode-analysis {
  grid-template-columns: 2fr 3fr;
}
/* Dynamic height: small when empty, grows with compound count, scroll when too tall */
.rarity-panel {
  --compound-count: 0;
  min-height: 120px;
  max-height: 90vh;
}
.rarity-panel[data-compound-count]:not([data-compound-count="0"]) {
  min-height: min(calc(120px + 42px * var(--compound-count)), 90vh);
}
.analysis-panel {
  --compound-count: 0;
  display: flex;
  flex-direction: column;
  min-height: 120px;
  max-height: 90vh;
}
.analysis-panel[data-compound-count]:not([data-compound-count="0"]) {
  min-height: min(calc(120px + 36px * var(--compound-count)), 90vh);
}
.analysis-panel .panel-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
.analysis-panel .analysis-table-wrap {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.analysis-panel .btn-add-material,
.analysis-panel .toolbar,
.analysis-panel .import-body {
  flex-shrink: 0;
}
.rarity-panel-body {
  min-height: 0;
}
.analysis-full-width {
  grid-column: 1 / -1;
}

/* Formulation row: Manual Formulation (left) | Compounds in Mix (right) side by side */
.formulation-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Panels ── */
.panel {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; border-bottom: 1px solid var(--c-border);
  background: var(--c-surface-alt);
}
.panel-header h2 { font-size: .95rem; }
.panel-actions { display: flex; gap: 6px; align-items: center; }
.panel-body { padding: 16px; }

/* ── Analysis panel (Compound Signatures + Proposed Formulation sub-panels) ── */
.analysis-subpanel {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}
.analysis-subpanel.hidden {
  display: none;
}
.analysis-subpanel .rarity-panel-hint {
  flex-shrink: 0;
  margin-bottom: 8px;
}

/* ── Proposed Formulation sub-panel (RAW MATERIALS | COMPOUNDS) ── */
.proposed-formulation-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 12px;
  flex-shrink: 0;
}
.proposed-formulation-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.proposed-formulation-actions.hidden {
  display: none;
}
.proposed-formulation-content {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}
.proposed-formulation-view {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}
.proposed-formulation-view.hidden {
  display: none;
}
/* Solution table inside Analysis panel */
.rarity-panel .solution-table-wrap {
  max-height: 400px;
}

/* ── Compound Signatures (rarity) sub-panel ── */
.rarity-panel-hint {
  font-size: .72rem; color: var(--c-text-muted); font-style: italic;
  display: block;
}

/* Inline "?" tooltip badge in panel titles */
.panel-info-tip {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px; border-radius: 50%;
  font-size: .65rem; font-weight: 700; font-family: var(--font);
  background: var(--c-border); color: var(--c-text-muted);
  cursor: default; vertical-align: middle; margin-left: 5px;
  position: relative;
  transition: background var(--transition), color var(--transition);
}
.panel-info-tip:hover {
  background: var(--c-primary); color: #fff;
}
/* Tooltip bubble */
.panel-info-tip::after {
  content: attr(aria-label);
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  padding: 8px 11px;
  background: #1e293b;
  color: #f1f5f9;
  font-size: .77rem;
  font-weight: 400;
  line-height: 1.5;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  white-space: normal;
  text-align: left;
  pointer-events: none;
  opacity: 0;
  transition: opacity 120ms ease;
  z-index: 100;
}
/* Arrow pointing up */
.panel-info-tip::before {
  content: "";
  position: absolute;
  top: calc(100% + 2px);
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-bottom-color: #1e293b;
  pointer-events: none;
  opacity: 0;
  transition: opacity 120ms ease;
  z-index: 100;
}
.panel-info-tip:hover::after,
.panel-info-tip:hover::before {
  opacity: 1;
}

/* Make the panel a flex column so header stays pinned and body fills the rest from the top */
.rarity-panel {
  display: flex;
  flex-direction: column;
}
.rarity-panel-body {
  flex: 1;
  padding: 8px 12px;
  overflow-y: auto;
  min-height: 0;
}
.rarity-panel-scroll {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  -webkit-overflow-scrolling: touch;
  align-content: start; /* grid/block alignment fallback */
}
#rarity-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Each compound row is a bordered card */
.rarity-row {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  border-left-width: 3px;
  background: var(--c-surface);
  transition: background var(--transition), box-shadow var(--transition);
}
.rarity-row:hover {
  background: var(--c-surface-alt);
  box-shadow: var(--shadow-sm);
}
.rarity-row-top {
  display: flex; align-items: baseline; justify-content: space-between; gap: 8px;
}
.rarity-compound-name {
  font-size: .83rem; font-family: var(--font-mono);
  font-weight: 500; color: var(--c-text);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  flex: 1;
}
.rarity-badge {
  display: inline-block; flex-shrink: 0;
  padding: 1px 7px; border-radius: 999px;
  font-size: .7rem; font-weight: 700; letter-spacing: .02em;
  white-space: nowrap;
}

/* Tier: unique (freq = 1) — green */
.rarity-tier-unique { border-left-color: #16a34a; }
.rarity-badge-unique { background: #dcfce7; color: #15803d; }

/* Tier: rare (freq 2–3) — amber */
.rarity-tier-rare { border-left-color: #d97706; }
.rarity-badge-rare { background: #fef3c7; color: #b45309; }

/* Tier: uncommon (freq 4–10) — blue */
.rarity-tier-uncommon { border-left-color: #2563eb; }
.rarity-badge-uncommon { background: #dbeafe; color: #1d4ed8; }

/* Tier: common (freq > 10) — neutral */
.rarity-tier-common { border-left-color: var(--c-border); }
.rarity-badge-common { background: #f1f5f9; color: var(--c-text-muted); }

/* Tier: unknown */
.rarity-tier-unknown { border-left-color: var(--c-border); }
.rarity-badge-unknown { background: #f1f5f9; color: var(--c-text-muted); }

/* Material chips below compound name */
.rarity-materials {
  display: flex; flex-wrap: wrap; gap: 4px; margin-top: 5px;
}
.rarity-mat-chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: var(--radius-sm);
  background: var(--c-surface-alt); border: 1px solid var(--c-border);
  font-size: .74rem; color: var(--c-text); white-space: nowrap;
  max-width: 100%; overflow: hidden; text-overflow: ellipsis;
}
.rarity-mat-pct {
  font-family: var(--font-mono); color: var(--c-text-muted);
  font-size: .7rem; flex-shrink: 0;
}

/* ── Material Probability Ranking panel ── */
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Shared zone container */
.ranking-zone {
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.ranking-zone + .ranking-zone {
  margin-top: 12px;
}

.ranking-zone-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--c-surface-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.ranking-zone-title {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--c-text-muted);
}
.ranking-zone-count {
  font-weight: 400;
}
.ranking-zone-subtitle {
  font-size: .72rem;
  color: var(--c-text-muted);
  font-style: italic;
  margin-left: auto;
}

/* Tab bar for Candidates | Ignored */
.ranking-tabs {
  display: flex;
  gap: 2px;
}
.ranking-tab {
  padding: 4px 10px;
  font-size: .78rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--c-text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.ranking-tab:hover { color: var(--c-text); background: var(--c-surface); }
.ranking-tab.active {
  background: var(--c-surface);
  color: var(--c-primary);
  border-color: var(--c-border);
}

.ranking-sort-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-left: auto;
}
.ranking-search-input {
  width: 180px;
  max-width: 42vw;
  padding: 4px 10px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  font-size: .78rem;
  outline: none;
  min-height: 32px;
}
.ranking-search-input:focus {
  border-color: var(--c-border-focus);
  background: var(--c-surface);
}
.ranking-search-input::placeholder {
  color: var(--c-text-muted);
  opacity: .6;
  font-family: var(--font);
  font-style: italic;
}
.ranking-sort-label {
  font-size: .72rem;
  color: var(--c-text-muted);
}
.ranking-sort-btn {
  padding: 2px 8px;
  font-size: .75rem;
}

.ranking-subpanel {
  border: 1px solid var(--c-border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: var(--c-surface);
}

.ranking-ignored-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 10px;
  border-bottom: 1px solid var(--c-border);
  transition: background var(--transition);
}
.ranking-ignored-row:last-child { border-bottom: none; }
.ranking-ignored-row:hover { background: var(--c-surface-alt); }

/* Inline error badge inside zone header */
.ranking-error-inline {
  margin-left: auto;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: .75rem;
  font-family: var(--font-mono);
  font-weight: 700;
  white-space: nowrap;
}
.ranking-error-inline.error-good { background: #dcfce7; color: #15803d; }
.ranking-error-inline.error-ok   { background: #fef3c7; color: #b45309; }
.ranking-error-inline.error-bad  { background: #fee2e2; color: #dc2626; }

/* Reconstruction error badge in panel header (top bar) */
.ranking-error-metric {
  font-size: .78rem;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.ranking-error-metric.error-good { background: #dcfce7; color: #15803d; }
.ranking-error-metric.error-ok   { background: #fef3c7; color: #b45309; }
.ranking-error-metric.error-bad  { background: #fee2e2; color: #dc2626; }

/* ── Zone 1: In Mix ── */
.ranking-in-mix-zone { border: 1px solid #a3c4f3; border-top: none; }
.ranking-in-mix-zone .ranking-zone-header { background: #dbeafe; border-color: #a3c4f3; }
.ranking-in-mix-zone .ranking-zone-title  { color: #1d4ed8; }
.ranking-zone-actions { margin-left: auto; display: flex; gap: 6px; }

.ranking-in-mix-empty .ranking-zone-header { background: var(--c-surface-alt); border-color: var(--c-border); }
.ranking-in-mix-empty .ranking-zone-title  { color: var(--c-text-muted); }

.ranking-mix-hint {
  padding: 8px 12px;
  font-size: .78rem;
  color: var(--c-text-muted);
  font-style: italic;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

/* In Mix column header row */
.ranking-in-mix-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  background: #c7d9f8;
  border: 1px solid #a3c4f3;
  border-top: none;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: #1e40af;
}
.ranking-in-mix-header .rim-col-name { flex: 1; min-width: 0; }
.ranking-in-mix-header .rim-col-step { width: 52px; flex-shrink: 0; }
.ranking-in-mix-header .rim-col-pct { width: 176px; flex-shrink: 0; }
.ranking-in-mix-header .rim-col-actions { width: 180px; flex-shrink: 0; text-align: right; }

/* "In Mix" material row */
.ranking-in-mix-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  background: var(--c-surface);
  border: 1px solid #a3c4f3;
  border-top: none;
  transition: background var(--transition);
}
.ranking-in-mix-row:last-of-type {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.ranking-in-mix-row:hover { background: #eff6ff; }

.rim-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  gap: 3px;
}
.rim-name {
  font-size: .84rem;
  font-weight: 600;
  color: var(--c-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.rim-bar-wrap {
  width: 100%;
  height: 4px;
  background: #bfdbfe;
  border-radius: 999px;
  overflow: hidden;
}
.rim-bar {
  height: 100%;
  background: var(--c-primary);
  border-radius: 999px;
  transition: width 300ms ease;
}

.rim-step-cell {
  width: 52px;
  flex-shrink: 0;
}
.rim-step-cell.rim-anchored-hide { visibility: hidden; pointer-events: none; }
.rim-step-input {
  width: 48px;
  padding: 2px 6px;
  font-size: .75rem;
  font-family: var(--font-mono);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  text-align: right;
}
.rim-step-input:focus { border-color: var(--c-border-focus); outline: none; }

.rim-pct-cell {
  width: 176px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}
.rim-pct-input {
  width: 96px;
  padding: 2px 6px;
  font-size: .82rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-primary);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  text-align: right;
  background: var(--c-surface);
}
.rim-pct-input:focus { border-color: var(--c-border-focus); outline: none; }
.rim-pct-input[readonly] { background: var(--c-surface-alt); color: var(--c-text-muted); cursor: default; }

.rim-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  min-width: 180px;
  justify-content: flex-end;
}
.ranking-btn-anchor {
  min-width: 32px;
  padding: 2px 6px;
  font-size: 1rem;
  line-height: 1;
  opacity: .5;
}
.ranking-btn-anchor:hover { opacity: .8; }
.ranking-btn-anchor.anchored {
  opacity: 1;
  background: var(--c-primary-light);
  color: var(--c-primary);
}

.rim-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.rim-btn {
  min-width: 28px;
  padding: 2px 6px;
  font-size: 1rem;
  line-height: 1;
  font-weight: 700;
}
.rim-btn:disabled { opacity: .5; cursor: not-allowed; }
.rim-pct {
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 700;
  color: var(--c-primary);
  flex-shrink: 0;
  min-width: 52px;
  text-align: right;
}

/* ── Zone 2: Candidates ── */
.ranking-candidates-zone { border: 1px solid var(--c-border); border-top: none; }
.ranking-candidates-zone .ranking-zone-header { border-color: var(--c-border); }

/* Candidate material row */
.ranking-candidate-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-top: none;
  transition: background var(--transition);
}
.ranking-candidate-row:last-child {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.ranking-candidate-row:hover { background: var(--c-surface-alt); }

.ranking-rank {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--c-text-muted);
  width: 20px;
  text-align: right;
  flex-shrink: 0;
}

.ranking-mat-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  gap: 2px;
}
.ranking-mat-name {
  font-size: .83rem;
  font-weight: 500;
  color: var(--c-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ranking-mat-meta {
  font-size: .70rem;
  color: var(--c-text-muted);
}
.ranking-score-bar-wrap {
  width: 100%;
  height: 3px;
  background: var(--c-border);
  border-radius: 999px;
  overflow: hidden;
}
.ranking-score-bar {
  height: 100%;
  background: var(--c-primary);
  border-radius: 999px;
  transition: width 250ms ease;
}

.ranking-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* Star badge for unique-to-one-material compounds */
.ranking-unique-badge {
  display: inline-block;
  margin-left: 5px;
  padding: 0 5px;
  border-radius: 999px;
  font-size: .67rem;
  font-weight: 700;
  background: #dcfce7;
  color: #15803d;
  vertical-align: middle;
  flex-shrink: 0;
}

/* Responsive */
@media (max-width: 700px) {
  .formulation-row {
    grid-template-columns: 1fr;
  }
  .ranking-candidate-row,
  .ranking-in-mix-row {
    flex-wrap: wrap;
  }
  .ranking-actions { flex-wrap: wrap; }
}

/* ── Input zone (paste / drop) ── */
.input-zone {
  border: 2px dashed var(--c-border); border-radius: var(--radius);
  background: var(--c-surface-alt); transition: border-color var(--transition);
}
.input-zone.dragover { border-color: var(--c-primary); background: var(--c-primary-light); }
.input-zone textarea {
  width: 100%; border: none; background: transparent;
  padding: 12px; font-family: var(--font-mono); font-size: .82rem;
  outline: none; color: var(--c-text);
}
.input-zone-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 12px; border-top: 1px solid var(--c-border);
}
.hint { font-size: .75rem; color: var(--c-text-muted); }
.file-label { cursor: pointer; }

/* ── Toolbar ── */
.toolbar {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 0;
}
.toolbar-info { font-size: .8rem; color: var(--c-text-muted); margin-left: auto; }

/* ── Analysis table & Formula table ── */
.table-wrap { max-height: 360px; overflow: auto; -webkit-overflow-scrolling: touch; }
.formula-table-wrap { max-height: 420px; }
.analysis-table-wrap { max-height: 800px; }
.compound-profile-table-wrap { max-height: 480px; }

/* Compounds in Mix: summary full width, then body (single or split) below */
.compounds-in-mix-panel .panel-body {
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.compounds-in-mix-panel #compounds-in-mix-summary {
  flex-shrink: 0;
  margin-bottom: 12px;
}
.compounds-in-mix-body {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex: 1;
  min-height: 0;
}
.compounds-in-mix-body.compare-mode {
  min-height: 0;
}
.compounds-in-mix-left-title {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--c-text-muted);
  margin-bottom: 8px;
}
.compounds-in-mix-not-in-original {
  color: var(--c-text-muted);
  font-style: italic;
}
.compounds-in-mix-panel .panel-actions #btn-compounds-in-mix-compare.active {
  background: var(--c-primary-light);
  color: var(--c-primary);
  border-color: var(--c-primary);
}

/* Single compare table: one row per compound, mix | original side-by-side */
.compounds-in-mix-compare-wrap {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.compounds-in-mix-compare-wrap .table-wrap {
  flex: 1;
  min-height: 0;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}
.compounds-in-mix-compare-table {
  width: 100%;
  table-layout: fixed;
  font-size: 0.8125rem;
  border-collapse: collapse;
}
.compounds-in-mix-compare-table th,
.compounds-in-mix-compare-table td {
  padding: 4px 6px;
  vertical-align: middle;
}
.compounds-in-mix-compare-table .col-num {
  width: 22px;
  min-width: 22px;
  text-align: center;
}
.compounds-in-mix-compare-table .col-compound-compare {
  min-width: 130px;
  width: 32%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.compounds-in-mix-compare-table .col-pct {
  width: 58px;
  min-width: 58px;
  text-align: right;
}
.compounds-in-mix-compare-table .col-bar {
  width: 72px;
  min-width: 72px;
}
.compounds-in-mix-compare-table .bar-cell {
  padding-left: 4px;
  padding-right: 4px;
}
/* Mirror bars: MIX stems from center line to the left */
.compounds-in-mix-compare-table .bar-cell-mix {
  direction: rtl;
  text-align: right;
}
.compounds-in-mix-compare-table .bar-cell-mix .bar-fill {
  direction: ltr;
}
/* ORIGINAL stems from center line to the right (default LTR) */
.compounds-in-mix-compare-table .bar-cell-original {
  text-align: left;
}
/* Central vertical line between MIX and ORIGINAL */
.compounds-in-mix-compare-table thead th:nth-child(5) {
  border-left: 2px solid var(--c-text-muted);
}
.compounds-in-mix-compare-table tbody td:nth-child(5) {
  border-left: 2px solid var(--c-text-muted);
}

/* Non-compare (mix-only) table: compact # column */
#compounds-in-mix-table .col-num {
  width: 22px;
  min-width: 22px;
}
#compounds-in-mix-table th,
#compounds-in-mix-table td {
  padding: 4px 6px;
}

.col-compound { min-width: 200px; }
.col-material { min-width: 200px; }
.col-pct { width: 80px; text-align: right; }
.col-match { width: 36px; text-align: center; }
.col-action { width: 36px; text-align: center; }
.col-bar { width: 120px; }

#analysis-table input[type="text"],
#formula-table input[type="text"] {
  width: 100%; border: 1px solid transparent; background: transparent;
  padding: 3px 6px; border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: .82rem;
  min-height: 32px;
}
#analysis-table input:focus,
#formula-table input:focus {
  border-color: var(--c-border-focus); background: var(--c-surface);
  outline: none;
}
#formula-table input::placeholder,
#analysis-table input::placeholder {
  color: var(--c-text-muted); opacity: .5;
  font-family: var(--font); font-style: italic;
}

/* Material search input in formula table */
#formula-table input[type="text"] {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  padding: 3px 6px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
}
#formula-table input[type="text"]:focus {
  border-color: var(--c-border-focus);
  background: var(--c-surface);
  outline: none;
}
#formula-table input[type="text"]::placeholder {
  color: var(--c-text-muted); opacity: .5;
  font-family: var(--font); font-style: italic;
}
/* Make the column a bit wider for the search */
.col-material { min-width: 240px; }

/* ── Sortable table headers ── */
th.sortable {
  cursor: pointer;
  user-select: none;
  transition: color var(--transition);
}
th.sortable:hover { color: var(--c-primary); }
.sort-arrow {
  font-size: .65rem;
  margin-left: 2px;
  opacity: .35;
  display: inline-block;
  vertical-align: middle;
}
.sort-arrow::after { content: "\21C5"; }
th.sortable.sort-asc .sort-arrow::after { content: "\25B2"; }
th.sortable.sort-desc .sort-arrow::after { content: "\25BC"; }
th.sortable.sort-asc .sort-arrow,
th.sortable.sort-desc .sort-arrow { opacity: 1; color: var(--c-primary); }

.match-ok { color: var(--c-success); font-weight: 700; }
.match-no { color: var(--c-error); font-weight: 700; }
input.match-no { color: var(--c-error); }
.match-warn { color: var(--c-warning); font-weight: 700; }

.btn-remove {
  background: transparent; border: none; color: var(--c-text-muted);
  cursor: pointer; font-size: 1rem; line-height: 1; padding: 2px 4px;
  border-radius: var(--radius-sm);
  min-width: 32px; min-height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
}
.btn-remove:hover { background: #fee2e2; color: var(--c-error); }

/* ── Table footers ── */
#formula-tfoot td,
#analysis-tfoot td {
  background: var(--c-surface-alt);
  border-top: 2px solid var(--c-border);
}

/* ── Formula full-width (saved formulas spans both columns) ── */
.formula-full-width {
  grid-column: 1 / -1;
}

/* ── Saved formulas list ── */
.saved-formulas-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 10px;
}
.saved-formula-card {
  background: var(--c-surface-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.saved-formula-card:hover {
  border-color: var(--c-border-focus);
  background: var(--c-primary-light);
  box-shadow: var(--shadow-sm);
}
.saved-formula-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}
.saved-formula-name {
  font-weight: 600;
  font-size: .9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.saved-formula-meta {
  font-size: .78rem;
  color: var(--c-text-muted);
  margin-bottom: 4px;
}
.saved-formula-preview {
  font-size: .78rem;
  color: var(--c-text-muted);
  font-family: var(--font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.btn-delete-formula {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--c-text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  opacity: 0;
  transition: all var(--transition);
}
.saved-formula-card:hover .btn-delete-formula {
  opacity: 1;
}
.btn-delete-formula:hover {
  background: #fee2e2;
  color: var(--c-error);
}

/* ── Add material button ── */
.btn-add-material {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 8px 0;
  margin-top: 2px;
  border: 2px dashed var(--c-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--c-text-muted);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-add-material:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: var(--c-primary-light);
}
.btn-add-material svg {
  opacity: .7;
}
.btn-add-material:hover svg {
  opacity: 1;
}

/* ── Formula name row ── */
.formula-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.formula-name-input {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-size: .88rem;
  background: var(--c-surface);
  color: var(--c-text);
  min-height: 36px;
}
.formula-name-input:focus {
  border-color: var(--c-border-focus);
  outline: none;
}
.formula-name-input::placeholder {
  color: var(--c-text-muted);
  opacity: .6;
}

/* ── Import zone ── */
.import-body {
  margin-top: 8px;
  padding: 0;
}

/* ── Config panel (now in topbar dropdown) ── */
.radio-group { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.radio-label { font-size: .85rem; cursor: pointer; }
.radio-label input { margin-right: 6px; }
.muted { color: var(--c-text-muted); }
.sub-config { padding-left: 4px; }
.form-row { margin-bottom: 6px; }
.form-row label { display: flex; align-items: center; gap: 6px; font-size: .84rem; flex-wrap: wrap; }
.input-sm {
  width: 72px; padding: 3px 6px; border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); text-align: right; font-family: var(--font-mono);
  font-size: .82rem; min-height: 32px;
}
.input-sm:focus { border-color: var(--c-border-focus); outline: none; }
.threshold-inline {
  display: flex; align-items: center; gap: 4px; font-size: .8rem;
  color: var(--c-text-muted); white-space: nowrap;
}
.threshold-inline .input-sm { width: 56px; min-height: 28px; padding: 2px 4px; }
#manual-weight-cfg textarea {
  width: 100%; padding: 8px; border: 1px solid var(--c-border);
  border-radius: var(--radius-sm); font-family: var(--font-mono); font-size: .82rem;
}

/* ── Solve bar / Formula bar ── */
.solve-bar {
  display: flex; align-items: center; justify-content: flex-end; gap: 16px;
  padding: 12px 24px; background: var(--c-surface);
  border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border);
  position: sticky; bottom: 0; z-index: 10;
  max-width: 1600px; margin: 0 auto;
  padding-bottom: calc(12px + var(--safe-bottom));
}
.solve-status { font-size: .85rem; color: var(--c-text-muted); }
.solve-status.error { color: var(--c-error); }

/* ── Warning banner ── */
.warning-banner {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: #fef3c7;
  border: 1px solid #fbbf24;
  color: #92400e;
  font-size: .82rem;
  margin-bottom: 12px;
}

/* ── Small summary cards (formula mode) ── */
.summary-cards-sm {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: 14px;
}
.summary-card-sm {
  display: flex; flex-direction: column;
  background: var(--c-surface-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  min-width: 100px;
}
.summary-card-sm .label {
  font-size: .68rem; color: var(--c-text-muted);
  text-transform: uppercase; letter-spacing: .04em;
}
.summary-card-sm .value {
  font-size: 1.15rem; font-weight: 700; font-family: var(--font-mono);
}
.summary-card-sm .value.good { color: var(--c-success); }
.summary-card-sm .value.warn { color: var(--c-warning); }

/* ── Solution view toggle (By Material / By Group) ── */
.sol-toggle-group {
  display: flex;
  gap: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.sol-toggle {
  padding: 3px 12px;
  border: none;
  background: var(--c-surface);
  color: var(--c-text-muted);
  font-size: .78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.sol-toggle:not(:last-child) {
  border-right: 1px solid var(--c-border);
}
.sol-toggle:hover {
  background: var(--c-surface-alt);
  color: var(--c-text);
}
.sol-toggle.active {
  background: var(--c-primary);
  color: #fff;
}

/* ── Grouped solution rows ── */
.group-row {
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}
.group-row:hover {
  background: var(--c-surface-alt);
}
.group-row td:first-child {
  position: relative;
  padding-left: 22px;
}
.group-chevron {
  position: absolute;
  left: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-size: .55rem;
  color: var(--c-text-muted);
  transition: transform var(--transition);
}
.group-row.expanded .group-chevron {
  transform: translateY(-50%) rotate(90deg);
}
.group-child-row td {
  padding-left: 30px;
  font-size: .82rem;
  color: var(--c-text-muted);
  background: var(--c-surface-alt);
  border-bottom-color: #f0f0f0;
}
.group-child-row td:first-child {
  padding-left: 30px;
}
.group-count {
  font-size: .72rem;
  color: var(--c-text-muted);
  font-weight: 400;
  margin-left: 4px;
}

/* ── Results area ── */
.results-area {
  padding: 16px 24px;
  max-width: 1600px; margin: 0 auto;
}

/* Summary cards */
.summary-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px; margin-bottom: 16px;
}
.summary-card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 14px 18px; box-shadow: var(--shadow-sm);
}
.summary-card .label { font-size: .75rem; color: var(--c-text-muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 2px; }
.summary-card .value { font-size: 1.4rem; font-weight: 700; font-family: var(--font-mono); }
.summary-card .value.good { color: var(--c-success); }
.summary-card .value.warn { color: var(--c-warning); }
.summary-card .value.bad { color: var(--c-error); }

/* Results grid */
.results-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.result-panel .table-wrap { max-height: 800px; }
.result-panel .solution-table-wrap { max-height: 800px; }
.comparison-table-wrap { max-height: 800px; }

/* Solve indicator (spinner in solution panel header) */
.solve-indicator {
  display: inline-flex; align-items: center; height: 16px;
}

/* Solution bar vis */
.bar-cell { position: relative; }
.bar-fill {
  display: block; height: 14px; border-radius: 2px;
  background: var(--c-bar); opacity: .7; transition: width var(--transition);
}

/* Comparison delta coloring */
.delta-pos { color: var(--c-error); }
.delta-neg { color: var(--c-primary); }
.delta-zero { color: var(--c-text-muted); }

/* Unmatched panel */
#unmatched-panel { margin-top: 16px; }
#unmatched-list { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
#unmatched-list li {
  background: #fef2f2; color: var(--c-error); padding: 2px 10px;
  border-radius: 999px; font-size: .8rem; font-weight: 500;
}

/* ── Compounds result panel ── */
.compounds-result-panel {
  transition: opacity var(--transition);
}

/* Empty state */
.empty-state {
  display: flex; align-items: center; justify-content: center;
  min-height: 120px; padding: 24px;
  color: var(--c-text-muted); font-size: .85rem;
  text-align: center;
}
.empty-state p { margin: 0; }

/* Computing indicator (small spinner in panel header) */
.compute-indicator {
  display: inline-flex; align-items: center; height: 16px;
}
.spinner-sm {
  display: inline-block; width: 12px; height: 12px;
  border: 2px solid var(--c-border); border-top-color: var(--c-primary);
  border-radius: 50%; animation: spin .6s linear infinite;
}

/* ── Utility ── */
.hidden { display: none !important; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-mono { font-family: var(--font-mono); }

/* ── Spinner ── */
@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid var(--c-border); border-top-color: var(--c-primary);
  border-radius: 50%; animation: spin .6s linear infinite;
}

/* ── Custom autocomplete dropdown ── */
.ac-dropdown {
  position: fixed;
  z-index: 200;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  max-height: 500px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: none;
}
.ac-dropdown.open { display: block; }
.ac-item {
  padding: 5px 12px;
  cursor: pointer;
  font-size: .85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ac-item:hover,
.ac-item.active {
  background: var(--c-primary-light);
  color: var(--c-primary);
}
.ac-item b { font-weight: 700; }
.ac-item {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: normal;
}
.ac-item-name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ac-item-notes { display: flex; gap: 4px; flex-shrink: 0; flex-wrap: wrap; }
.ac-empty {
  padding: 10px 12px;
  color: var(--c-text-muted);
  font-size: .82rem;
  font-style: italic;
}
.ac-count {
  padding: 4px 12px;
  font-size: .72rem;
  color: var(--c-text-muted);
  border-top: 1px solid var(--c-border);
  background: var(--c-surface-alt);
  text-align: center;
}

/* ── Fragrance note badges ── */
.note-badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 999px;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
  line-height: 1.6;
  vertical-align: middle;
}
/* Base */
.note-badge--base          { background: #fef3c7; color: #92400e; }
/* Base–Middle */
.note-badge--base-middle   { background: #ffedd5; color: #9a3412; }
/* Middle */
.note-badge--middle        { background: #d1fae5; color: #065f46; }
/* Middle–Top */
.note-badge--middle-top    { background: #ccfbf1; color: #0f766e; }
/* Top */
.note-badge--top           { background: #dbeafe; color: #1e40af; }

/* Badges row inside formula table material cell */
.note-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  margin-top: 3px;
}

/* ── Olfactory family badges (Rueda Olfativa – Academia del Perfume) ── */
/* Main families */
.family-badge--citrica   { background: #fef9c3; color: #854d0e; }   /* citrus yellow    */
.family-badge--floral    { background: #fce7f3; color: #831843; }   /* rose pink        */
.family-badge--amaderada { background: #e8d5c4; color: #78350f; }   /* wood brown       */
.family-badge--fougere   { background: #bbf7d0; color: #14532d; }   /* fern green       */
.family-badge--chipre    { background: #a5f3fc; color: #0e7490; }   /* teal moss        */
.family-badge--ambarada  { background: #e9d5ff; color: #4c1d95; }   /* amber/oriental   */
.family-badge--gourmand  { background: #fecdd3; color: #9f1239; }   /* caramel pink     */
/* Fluctuating families */
.family-badge--aromatica { background: #d9f99d; color: #365314; }   /* herb green       */
.family-badge--acuatica  { background: #bae6fd; color: #075985; }   /* aqua blue        */
.family-badge--afrutada  { background: #fed7aa; color: #9a3412; }   /* fruity orange    */
.family-badge--cuero     { background: #d6d3d1; color: #44403c; }   /* leather grey     */


/* ================================================================
   RESPONSIVE – Tablet (≤960px)
   ================================================================ */
@media (max-width: 960px) {
  .workspace { grid-template-columns: 1fr; }
  #mode-formula { grid-template-columns: 1fr; }
  #mode-analysis { grid-template-columns: 1fr; }
  .results-grid { grid-template-columns: 1fr; }

  .topbar { padding: 0 16px; }
  .workspace { padding: 12px 16px; gap: 12px; }
  .solve-bar { padding: 10px 16px; padding-bottom: calc(10px + var(--safe-bottom)); }
}


/* ================================================================
   RESPONSIVE – Mobile (≤640px)
   ================================================================ */
@media (max-width: 640px) {
  html { font-size: 13px; }

  /* ── Topbar: compact layout ── */
  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 12px;
    gap: 6px;
  }
  .topbar-left { order: 1; }
  .topbar-center { order: 3; flex-basis: 100%; justify-content: center; padding-bottom: 4px; }
  .topbar-right { order: 2; margin-left: auto; }

  .logo { font-size: .95rem; }
  .logo-img { height: 1.3rem; }

  /* Smaller chips */
  .chip { font-size: .65rem; padding: 1px 7px; }

  /* Compact mode tabs */
  .mode-tab {
    padding: 6px 16px;
    font-size: .85rem;
    gap: 5px;
  }
  .mode-tab svg { width: 14px; height: 14px; }

  /* ── Workspace ── */
  .workspace { padding: 10px; gap: 10px; }

  /* ── Panels ── */
  .panel { border-radius: var(--radius-sm); }
  .panel-header { padding: 8px 12px; }
  .panel-header h2 { font-size: .88rem; }
  .panel-body { padding: 10px; }

  /* ── Tables: tighter columns for mobile ── */
  th, td { padding: 6px 6px; font-size: .82rem; }
  .col-compound { min-width: 140px; }
  .col-material { min-width: 140px; }
  .col-pct { width: 60px; }
  .col-bar { width: 80px; }
  .col-match { width: 28px; }
  .col-action { width: 28px; }

  /* Touch-friendly inputs inside tables */
  #analysis-table input[type="text"],
  #formula-table input[type="text"] {
    font-size: 16px; /* prevents iOS zoom on focus */
    min-height: 36px;
    padding: 4px 6px;
  }

  /* ── Solve bar ── */
  .solve-bar {
    padding: 10px 12px;
    padding-bottom: calc(10px + var(--safe-bottom));
    gap: 10px;
  }
  .solve-status { font-size: .8rem; }
  .btn-lg { padding: 10px 20px; font-size: .9rem; }

  /* ── Summary cards: fill width ── */
  .summary-cards-sm {
    gap: 6px;
  }
  .summary-card-sm {
    flex: 1 1 calc(50% - 6px);
    min-width: 0;
    padding: 6px 10px;
  }
  .summary-card-sm .label { font-size: .62rem; }
  .summary-card-sm .value { font-size: 1rem; }

  .summary-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .summary-card { padding: 10px 14px; }
  .summary-card .value { font-size: 1.2rem; }

  /* ── Import zone ── */
  .import-body { padding: 8px; }
  .input-zone textarea { padding: 8px; font-size: .78rem; }
  .input-zone-footer { padding: 6px 8px; }

  /* ── Config dropdown: full-width on mobile ── */
  .config-dropdown {
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-height: 70vh;
    max-height: 70dvh;
    border-radius: var(--radius) var(--radius) 0 0;
    border-bottom: none;
  }
  .config-dropdown-body { padding: 16px 12px calc(16px + var(--safe-bottom)); }

  /* ── Autocomplete dropdown: wider on mobile ── */
  .ac-dropdown {
    max-height: 40vh;
    max-height: 40dvh;
  }
  .ac-item {
    padding: 10px 12px;
    font-size: .88rem;
  }

  /* ── Remove button: larger touch target ── */
  .btn-remove {
    min-width: 36px; min-height: 36px;
    font-size: 1.1rem;
  }

  /* ── Table heights: shorter on mobile to leave room for keyboard; ~10 rows visible ── */
  .table-wrap { max-height: 280px; }
  .formula-table-wrap { max-height: 320px; }
  .analysis-table-wrap { max-height: 90vh; }
  .compound-profile-table-wrap { max-height: 360px; }
  .result-panel .table-wrap { max-height: 360px; }
  .solution-table-wrap { max-height: 320px; }
  .comparison-table-wrap { max-height: 320px; }

  /* ── Empty state ── */
  .empty-state { min-height: 80px; padding: 16px; }

  /* ── Benchmark responsive ── */
  .bench-container { padding: 12px 12px 36px; }
  .bench-meta-cards { gap: 6px; }
  .bench-meta-card { min-width: 90px; padding: 8px 10px; }
  .bench-controls { gap: 12px; }
  .bench-accordion-gt { display: none; }
}


/* ================================================================
   RESPONSIVE – Small phone (≤400px)
   ================================================================ */
@media (max-width: 400px) {
  .workspace { padding: 6px; gap: 8px; }
  .panel-body { padding: 8px; }
  .panel-header { padding: 6px 10px; }
  .panel-actions { gap: 4px; }
  .btn-sm { padding: 2px 8px; font-size: .75rem; }

  /* Mode tabs even more compact */
  .mode-tab { padding: 5px 12px; font-size: .8rem; }
  .mode-tab svg { display: none; }

  /* Table: even tighter */
  .col-compound { min-width: 110px; }
  .col-material { min-width: 110px; }
  .col-pct { width: 50px; }
  .col-bar { width: 60px; }

  /* Stack summary cards vertically if needed */
  .summary-cards-sm {
    flex-direction: column;
  }
  .summary-card-sm {
    flex-basis: auto;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  /* Solve bar: stack on tiny screens */
  .solve-bar {
    flex-direction: column;
    gap: 8px;
    align-items: stretch;
  }
  .solve-bar .btn-lg {
    width: 100%;
    justify-content: center;
  }
  .solve-status { text-align: center; }
}


/* ================================================================
   Benchmark mode (embedded)
   ================================================================ */

.bench-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px 48px;
}
.bench-section {
  margin-bottom: 20px;
}

/* Loading / Error states */
.bench-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 300px;
  color: var(--c-text-muted);
}
.bench-error {
  text-align: center;
  padding: 60px 24px;
  color: var(--c-text-muted);
}
.bench-error h2 {
  font-size: 1.3rem;
  color: var(--c-text);
  margin-bottom: 8px;
}
.bench-error pre {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 20px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .9rem;
}

/* Meta cards */
.bench-meta-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.bench-meta-card {
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 10px 16px;
  min-width: 120px;
  box-shadow: var(--shadow-sm);
}
.bench-meta-label {
  font-size: .68rem;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.bench-meta-value {
  font-size: 1.05rem;
  font-weight: 700;
  font-family: var(--font-mono);
  margin-top: 2px;
}

/* Controls bar */
.bench-controls {
  display: flex;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}
.bench-control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bench-label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.bench-select {
  padding: 6px 12px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  font-family: var(--font);
  font-size: .9rem;
  color: var(--c-text);
  cursor: pointer;
  min-width: 180px;
}
.bench-select:focus {
  border-color: var(--c-border-focus);
  outline: none;
}

/* Toggle group */
.bench-toggle-group {
  display: flex;
  gap: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.bench-toggle {
  padding: 6px 16px;
  border: none;
  background: var(--c-surface);
  color: var(--c-text-muted);
  font-size: .85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.bench-toggle:not(:last-child) {
  border-right: 1px solid var(--c-border);
}
.bench-toggle:hover {
  background: var(--c-surface-alt);
  color: var(--c-text);
}
.bench-toggle.active {
  background: var(--c-primary);
  color: #fff;
}

/* Panels */
.bench-panel {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.bench-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-surface-alt);
}
.bench-panel-header h2 {
  font-size: .95rem;
}
.bench-panel-actions {
  display: flex;
  gap: 6px;
}
.bench-panel-body {
  padding: 16px;
}
.bench-panel-body-flush {
  padding: 0;
}

/* Chart */
.bench-chart-container {
  width: 100%;
  overflow-x: auto;
}
.bench-chart-container svg {
  display: block;
}
#boxplot-container {
  width: 100%;
  overflow-x: auto;
}
#boxplot-container svg {
  display: block;
}
.bench-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 8px 16px 12px;
  border-top: 1px solid var(--c-border);
}
.bench-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  color: var(--c-text);
}
.bench-legend-item.has-tooltip {
  cursor: help;
}
.bench-algo-tooltip {
  position: fixed;
  z-index: 9999;
  max-width: 320px;
  padding: 9px 13px;
  background: #1e293b;
  color: #f1f5f9;
  font-size: .8rem;
  line-height: 1.55;
  border-radius: 7px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .25);
  pointer-events: none;
  opacity: 0;
  transition: opacity .12s ease;
  white-space: normal;
  word-break: break-word;
}
.bench-algo-tooltip.visible {
  opacity: 1;
}
.bench-legend-swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

/* Heatmap table */
.bench-table-wrap {
  overflow-x: auto;
}
.bench-heatmap {
  width: 100%;
  border-collapse: collapse;
}
.bench-heatmap th,
.bench-heatmap td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--c-border);
  white-space: nowrap;
}
.bench-heatmap th {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .03em;
}
.bench-cell {
  font-family: var(--font-mono);
  font-size: .85rem;
  font-weight: 600;
  transition: all var(--transition);
  min-width: 64px;
}
.bench-row-label {
  font-weight: 600;
  font-size: .85rem;
  white-space: nowrap;
  max-width: 420px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Generic bench table */
.bench-table {
  width: 100%;
  border-collapse: collapse;
}
.bench-table th,
.bench-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--c-border);
}
.bench-table th {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  background: var(--c-surface-alt);
  position: sticky;
  top: 0;
  z-index: 1;
}

/* Detail table */
.bench-detail-table {
  font-size: .82rem;
}
.bench-detail-table td {
  padding: 4px 8px;
}
.bench-top-mats {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: .78rem;
  color: var(--c-text-muted);
}

/* Value color classes */
.val-good { color: #16a34a; }
.val-warn { color: #d97706; }
.val-bad  { color: #dc2626; }

/* Accordion */
.bench-accordion-item {
  border-bottom: 1px solid var(--c-border);
}
.bench-accordion-item:last-child {
  border-bottom: none;
}
.bench-accordion-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  user-select: none;
  background: var(--c-surface);
  transition: background var(--transition);
  list-style: none;
}
.bench-accordion-header::-webkit-details-marker {
  display: none;
}
.bench-accordion-header::before {
  content: "\25B6";
  font-size: .6rem;
  color: var(--c-text-muted);
  transition: transform var(--transition);
  display: inline-block;
  flex-shrink: 0;
}
.bench-accordion-item[open] > .bench-accordion-header::before {
  transform: rotate(90deg);
}
.bench-accordion-header:hover {
  background: var(--c-surface-alt);
}
.bench-accordion-title {
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: .9rem;
}
.bench-accordion-subtitle {
  font-size: .78rem;
  color: var(--c-text-muted);
}
.bench-accordion-gt {
  font-size: .78rem;
  color: var(--c-text-muted);
  margin-left: auto;
  max-width: 400px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.bench-accordion-body {
  padding: 0 16px 16px;
}

/* Config group in accordion */
.bench-config-group {
  margin-top: 12px;
}
.bench-config-group:first-child {
  margin-top: 0;
}
.bench-config-label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--c-primary);
  text-transform: uppercase;
  letter-spacing: .03em;
  margin-bottom: 4px;
  padding: 4px 0;
}

/* Selected metric explanation */
.bench-selected-metric-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.bench-selected-metric-line {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.bench-selected-metric-name {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: .84rem;
  font-weight: 700;
  color: var(--c-primary);
  background: var(--c-primary-light);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
}
.bench-selected-metric-direction {
  display: inline-flex;
  align-items: center;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 999px;
}
.bench-selected-metric-direction.dir-hib {
  background: #dcfce7;
  color: #166534;
}
.bench-selected-metric-direction.dir-lib {
  background: #fef3c7;
  color: #92400e;
}
.bench-selected-metric-desc {
  margin: 0;
  font-size: .85rem;
  color: var(--c-text);
  line-height: 1.5;
}

/* Ground truth materials */
.bench-gt-mat {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--c-surface-alt);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  padding: 2px 10px;
  margin: 2px 4px 2px 0;
  font-size: .8rem;
  white-space: nowrap;
}
.bench-gt-pct {
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--c-primary);
}


/* ================================================================
   RESPONSIVE – Large desktop (≥1200px)
   ================================================================ */
@media (min-width: 1200px) {
  .results-grid { grid-template-columns: 1fr 1fr; }
}


/* ================================================================
   Database Viewer mode
   ================================================================ */

.db-viewer-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 16px 24px 32px;
}

.db-viewer-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Row-count chip */
.db-row-count-chip {
  background: var(--c-primary-light);
  color: var(--c-primary);
  font-size: .75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

/* Save button: highlighted when there are unsaved changes */
.db-save-btn { min-width: 110px; justify-content: center; }

/* Outer scroll container – fills viewport height below the topbar */
.db-table-outer {
  overflow: auto;
  max-height: calc(100vh - 140px);
  max-height: calc(100dvh - 140px);
  -webkit-overflow-scrolling: touch;
  position: relative;
}

/* The table itself – width driven by colgroup */
.db-table {
  width: max-content;
  min-width: 100%;
  border-collapse: collapse;
  font-size: .82rem;
  table-layout: fixed;
}

/* Column headers */
.db-col-header {
  background: var(--c-surface-alt) !important;
  position: sticky;
  top: 0;
  z-index: 3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 6px 8px;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--c-text-muted);
  border-bottom: 1px solid var(--c-border);
  user-select: none;
  transition: color var(--transition);
}
.db-col-header.sortable { cursor: pointer; }
.db-col-header.sortable:hover { color: var(--c-primary); }
.db-col-header.sort-asc  .sort-arrow::after { content: "\25B2"; }
.db-col-header.sort-desc .sort-arrow::after { content: "\25BC"; }
.db-col-header.sort-asc  .sort-arrow,
.db-col-header.sort-desc .sort-arrow { opacity: 1; color: var(--c-primary); }

/* Target header: centered, not sortable */
.db-target-header {
  text-align: center;
  cursor: default;
}

/* Filter row – sticky directly below headers (~30px header height) */
.db-filter-row td {
  position: sticky;
  top: 30px;
  z-index: 2;
  background: var(--c-surface-alt);
  border-bottom: 2px solid var(--c-border);
  padding: 3px 4px;
}

.db-filter-input {
  width: 100%;
  padding: 3px 6px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--c-text);
  outline: none;
  transition: border-color var(--transition);
  box-sizing: border-box;
}
.db-filter-input:focus {
  border-color: var(--c-border-focus);
}
.db-filter-input::placeholder {
  color: var(--c-text-muted);
  opacity: .5;
  font-family: var(--font);
  font-style: italic;
}

/* Target column filter – dropdown select */
.db-filter-select {
  width: 100%;
  padding: 3px 4px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  font-family: var(--font);
  font-size: .73rem;
  color: var(--c-text);
  outline: none;
  cursor: pointer;
  box-sizing: border-box;
}
.db-filter-select:focus { border-color: var(--c-border-focus); }

/* Data rows */
.db-table tbody tr { transition: background var(--transition); }
.db-table tbody tr:hover { background: var(--c-surface-alt); }

/* Checked row highlight */
.db-table tbody tr.db-row-checked { background: #f0fdf4; }
.db-table tbody tr.db-row-checked:hover { background: #dcfce7; }

.db-table td {
  padding: 4px 8px;
  border-bottom: 1px solid var(--c-border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: .8rem;
}

/* Target column cell – centered checkbox */
.db-target-cell {
  text-align: center;
  padding: 3px 4px !important;
  vertical-align: middle;
}

.db-target-checkbox {
  width: 15px;
  height: 15px;
  cursor: pointer;
  accent-color: var(--c-primary);
  vertical-align: middle;
}

/* Dirty (unsaved) Target cell – subtle blue tint */
.db-target-dirty {
  background: #eff6ff !important;
}
.db-table tbody tr:hover .db-target-dirty,
.db-table tbody tr.db-row-checked .db-target-dirty,
.db-table tbody tr.db-row-checked:hover .db-target-dirty {
  background: #dbeafe !important;
}

/* Empty / loading state */
.db-empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  padding: 32px;
  color: var(--c-text-muted);
  font-size: .88rem;
}
.db-empty-state p { margin: 0; }

@media (max-width: 960px) {
  .db-viewer-container { padding: 12px 16px 24px; }
  .db-table-outer { max-height: calc(100vh - 160px); max-height: calc(100dvh - 160px); }
}

@media (max-width: 640px) {
  .db-viewer-container { padding: 10px 10px 20px; }
  .db-table td { padding: 3px 5px; font-size: .75rem; }
  .db-filter-input { font-size: .72rem; }
  .db-table-outer { max-height: calc(100vh - 180px); max-height: calc(100dvh - 180px); }
}