/* ============================================================
   SURIMAKI — Control de Costos
   Design tokens & global styles
   ============================================================ */

:root {
  /* Neutrals — warm paper */
  --bg:        #FAFAF7;
  --bg-muted:  #F3F0E8;
  --card:      #FFFFFF;
  --line:      #E8E5DE;
  --line-2:    #DCD8CE;
  --shadow:    0 1px 2px rgba(23, 20, 12, 0.04),
               0 8px 24px rgba(23, 20, 12, 0.05);

  /* Ink */
  --ink:       #1A1A1A;
  --ink-2:     #4A4A4A;
  --ink-3:     #7A756E;
  --ink-4:     #A9A49C;

  /* Accent — shu-iro (vermilion) */
  --accent:      #D64B3C;
  --accent-2:    #B23A2E;
  --accent-tint: #FDECE8;

  /* Semantic */
  --ok:        #2F7D5C;
  --ok-tint:   #E5EEE8;
  --warn:      #B87F00;
  --warn-tint: #FBF3DD;
  --danger:      #B23A2E;
  --danger-tint: #FBEAE7;

  /* Type */
  --font-ui:   system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  /* Scale */
  --r-1: 4px;
  --r-2: 8px;
  --r-3: 12px;

  --pad-1: 8px;
  --pad-2: 16px;
  --pad-3: 24px;
  --pad-4: 32px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; }
button { font-family: inherit; }

/* Tabular numerics everywhere they matter */
.mono, .amount, .num, td.num, th.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ============================================================
   Login
   ============================================================ */
.login-body {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: var(--pad-3);
  background:
    radial-gradient(circle at 20% 10%, rgba(214, 75, 60, 0.05), transparent 40%),
    radial-gradient(circle at 90% 90%, rgba(214, 75, 60, 0.04), transparent 45%),
    var(--bg);
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  padding: var(--pad-4);
  text-align: center;
  box-shadow: var(--shadow);
}

.login-mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--pad-2);
  background: var(--accent);
  color: white;
  border-radius: 50%;
}

.mark-glyph {
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "MS Mincho", serif;
  font-size: 28px;
  font-weight: 500;
  line-height: 1;
}

.login-title {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.login-sub {
  margin: 4px 0 var(--pad-3);
  color: var(--ink-3);
  font-size: 13px;
}

.login-form { text-align: left; }

.field { display: block; margin-bottom: var(--pad-2); }
.field-label {
  display: block;
  font-size: 12px;
  color: var(--ink-2);
  margin-bottom: 4px;
  font-weight: 500;
}

.login-form input[type="password"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-2);
  font-size: 15px;
  background: var(--card);
  color: var(--ink);
  transition: border-color 0.15s;
}

.login-form input[type="password"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

.login-error {
  margin: var(--pad-2) 0 0;
  color: var(--danger);
  font-size: 13px;
  min-height: 1.2em;
}

.login-foot {
  margin-top: var(--pad-3);
  padding-top: var(--pad-2);
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 12px;
  font-style: italic;
  line-height: 1.4;
}

/* ============================================================
   App shell
   ============================================================ */
.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--card);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: var(--pad-2) 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 var(--pad-2) var(--pad-3);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--pad-2);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  background: var(--accent);
  color: white;
  border-radius: var(--r-2);
  font-family: "Hiragino Mincho ProN", "Yu Mincho", "MS Mincho", serif;
  font-size: 20px;
  font-weight: 500;
  flex-shrink: 0;
}

.brand-text { flex: 1; min-width: 0; }
.brand-name {
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.6px;
}
.brand-sub {
  font-size: 11px;
  color: var(--ink-3);
  margin-top: 1px;
}

.sidebar-close {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--ink-3);
  cursor: pointer;
  padding: 4px 8px;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0 var(--pad-1);
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  text-decoration: none;
  color: var(--ink-2);
  border-radius: var(--r-2);
  font-size: 13.5px;
  transition: background 0.1s, color 0.1s;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-muted);
  color: var(--ink);
}

.nav-item.active {
  color: var(--ink);
  background: var(--bg-muted);
  font-weight: 500;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 20%;
  bottom: 20%;
  width: 3px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}

.nav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink-4);
  flex-shrink: 0;
  transition: background 0.1s;
}

.nav-item.active .nav-dot,
.nav-item:hover .nav-dot { background: var(--accent); }

.sidebar-foot {
  padding: var(--pad-2);
  border-top: 1px solid var(--line);
  margin-top: var(--pad-1);
}

/* Main area */
.main-area {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  display: flex;
  align-items: center;
  gap: var(--pad-2);
  padding: 14px var(--pad-3);
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 56px;
}

.sidebar-open {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  font-size: 20px;
  cursor: pointer;
  color: var(--ink);
  padding: 4px 12px;
}

.topbar-title {
  font-weight: 600;
  font-size: 16px;
  flex: 1;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--pad-1);
}

.view {
  padding: var(--pad-3);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.loading {
  padding: var(--pad-4);
  text-align: center;
  color: var(--ink-3);
  font-size: 14px;
}

/* ============================================================
   Cards & sections
   ============================================================ */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-3);
  padding: var(--pad-3);
  margin-bottom: var(--pad-2);
}

.card-tight { padding: var(--pad-2); }

.card-head {
  display: flex;
  align-items: center;
  gap: var(--pad-2);
  margin-bottom: var(--pad-2);
  flex-wrap: wrap;
}

.card-head h2, .card-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  flex: 1;
}

.card-head-actions {
  display: flex;
  gap: var(--pad-1);
  flex-wrap: wrap;
}

.section-eyebrow {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--ink-3);
  margin-bottom: 4px;
  font-weight: 600;
}

/* Hero number pattern */
.hero-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 40px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin: 4px 0;
}
.hero-num.small { font-size: 28px; }
.hero-num.big   { font-size: 52px; }
.hero-num.accent { color: var(--accent); }
.hero-num.ok    { color: var(--ok); }
.hero-num.warn  { color: var(--warn); }

.hero-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--ink-3);
  font-weight: 600;
}

/* Grid of cards */
.grid {
  display: grid;
  gap: var(--pad-2);
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border: 1px solid var(--line-2);
  background: var(--card);
  color: var(--ink);
  border-radius: var(--r-2);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s, color 0.1s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { border-color: var(--ink-4); background: var(--bg-muted); }
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent-2);
  border-color: var(--accent-2);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-2);
}
.btn-ghost:hover { color: var(--ink); background: var(--bg-muted); }

.btn-danger {
  color: var(--danger);
  border-color: var(--line-2);
  background: var(--card);
}
.btn-danger:hover {
  background: var(--danger-tint);
  border-color: var(--danger);
}

.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; }
.btn-icon { padding: 6px 8px; min-width: 32px; }

/* ============================================================
   Forms
   ============================================================ */
.form-row {
  display: grid;
  gap: var(--pad-2);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: var(--pad-2);
}
.form-row.cols-1 { grid-template-columns: 1fr; }
.form-row.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-row.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 720px) {
  .form-row, .form-row.cols-3, .form-row.cols-4 { grid-template-columns: 1fr; }
}

.form-field { display: flex; flex-direction: column; gap: 4px; }

.form-field label,
.form-field > .field-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-2);
}

.form-field input[type="text"],
.form-field input[type="number"],
.form-field input[type="date"],
.form-field input[type="month"],
.form-field input[type="password"],
.form-field select,
.form-field textarea,
input.form-input, select.form-input, textarea.form-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-2);
  background: var(--card);
  color: var(--ink);
  font-size: 14px;
  font-family: inherit;
}

.form-field input[type="number"] { font-family: var(--font-mono); }

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus,
input.form-input:focus, select.form-input:focus, textarea.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

.form-field textarea { min-height: 70px; resize: vertical; }

.form-help {
  font-size: 11.5px;
  color: var(--ink-3);
  margin-top: 2px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--pad-1);
  padding-top: var(--pad-2);
  border-top: 1px solid var(--line);
  margin-top: var(--pad-2);
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
}

/* ============================================================
   Tables
   ============================================================ */
.table-wrap {
  overflow-x: auto;
  margin: 0 calc(-1 * var(--pad-2));
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

table.data th, table.data td {
  padding: 10px var(--pad-2);
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}

table.data th {
  font-weight: 600;
  color: var(--ink-3);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--line-2);
  position: sticky;
  top: 0;
  z-index: 1;
}

table.data td.num, table.data th.num { text-align: right; }
table.data td.center, table.data th.center { text-align: center; }

table.data tbody tr:hover { background: var(--bg-muted); }
table.data .row-actions {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
}

table.data .inactive-row td { color: var(--ink-4); font-style: italic; }

/* Empty state */
.empty {
  padding: var(--pad-4);
  text-align: center;
  color: var(--ink-3);
}
.empty-title {
  font-size: 15px;
  color: var(--ink-2);
  margin-bottom: 4px;
  font-weight: 500;
}
.empty-sub {
  font-size: 13px;
  color: var(--ink-3);
  margin-bottom: var(--pad-2);
}

/* ============================================================
   Chips & badges
   ============================================================ */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 999px;
  background: var(--bg-muted);
  color: var(--ink-2);
  line-height: 1.6;
}
.chip-ok    { background: var(--ok-tint);    color: var(--ok); }
.chip-warn  { background: var(--warn-tint);  color: var(--warn); }
.chip-danger{ background: var(--danger-tint); color: var(--danger); }
.chip-accent{ background: var(--accent-tint); color: var(--accent); }

.chip-dot {
  width: 6px; height: 6px; border-radius: 50%; background: currentColor;
  display: inline-block;
}

/* Alert */
.alert {
  padding: var(--pad-2);
  border-radius: var(--r-2);
  border: 1px solid var(--line-2);
  background: var(--bg-muted);
  color: var(--ink-2);
  font-size: 13px;
  margin-bottom: var(--pad-2);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.alert-warn   { background: var(--warn-tint);   border-color: #EDD68A; color: #6B4E00; }
.alert-danger { background: var(--danger-tint); border-color: #EDBAAF; color: var(--danger); }
.alert-ok     { background: var(--ok-tint);     border-color: #B7D1BE; color: var(--ok); }
.alert-info   { background: #ECF1F5;            border-color: #C9D6DF; color: #2E4C61; }

.alert-icon {
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1.3;
}

/* ============================================================
   KPI stack pattern (dashboard-style)
   ============================================================ */
.kpi {
  padding: var(--pad-2);
}
.kpi-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--ink-3);
  font-weight: 600;
}
.kpi-value {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  font-weight: 500;
  color: var(--ink);
}
.kpi-value.accent { color: var(--accent); }
.kpi-hint {
  margin-top: 4px;
  font-size: 12px;
  color: var(--ink-3);
}

/* Pair of numbers side by side */
.pair {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--pad-2);
  align-items: center;
  padding: var(--pad-2) 0;
}
.pair-arrow {
  font-family: var(--font-mono);
  color: var(--ink-3);
  font-size: 18px;
}
.pair-side { text-align: center; }
.pair-side .kpi-label { display: block; margin-bottom: 4px; }
.pair-side .num { font-size: 24px; font-family: var(--font-mono); font-weight: 500; }

/* ============================================================
   Modal
   ============================================================ */
.modal-root {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--pad-2);
  background: rgba(23, 20, 12, 0.4);
}
.modal-root.open { display: flex; }

.modal {
  background: var(--card);
  border-radius: var(--r-3);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 60px rgba(23, 20, 12, 0.24);
  border: 1px solid var(--line);
}
.modal.wide { max-width: 900px; }
.modal.narrow { max-width: 440px; }

.modal-head {
  padding: var(--pad-2) var(--pad-3);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: var(--pad-2);
}
.modal-head h3 { margin: 0; font-size: 16px; font-weight: 600; flex: 1; }
.modal-close {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--ink-3);
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
.modal-close:hover { color: var(--ink); }

.modal-body { padding: var(--pad-3); }
.modal-foot {
  padding: var(--pad-2) var(--pad-3);
  border-top: 1px solid var(--line);
  display: flex;
  gap: var(--pad-1);
  justify-content: flex-end;
  background: var(--bg-muted);
}

/* ============================================================
   Toast
   ============================================================ */
.toast-root {
  position: fixed;
  bottom: var(--pad-3);
  right: var(--pad-3);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--ink);
  color: white;
  padding: 10px 16px;
  border-radius: var(--r-2);
  box-shadow: var(--shadow);
  font-size: 13px;
  max-width: 360px;
  pointer-events: auto;
  animation: toastIn 0.15s ease-out;
}
.toast.error { background: var(--danger); }
.toast.ok    { background: var(--ok); }

@keyframes toastIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Product page (ficha técnica detail)
   ============================================================ */
.product-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--pad-3);
  align-items: start;
  padding-bottom: var(--pad-2);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--pad-3);
}

.product-hero h1 {
  margin: 0 0 4px;
  font-size: 24px;
  font-weight: 600;
}
.product-hero .category {
  color: var(--ink-3);
  font-size: 13px;
}

.product-numbers {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--pad-2);
  margin-bottom: var(--pad-3);
}
@media (max-width: 720px) {
  .product-numbers { grid-template-columns: repeat(2, 1fr); }
  .product-hero { grid-template-columns: 1fr; }
}

.number-block {
  padding: var(--pad-2);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
}
.number-block.emphasis {
  background: var(--bg-muted);
  border-color: var(--line-2);
}

/* Ficha técnica editor rows */
.recipe-editor {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.recipe-row {
  display: grid;
  grid-template-columns: 3fr 1fr 1fr auto auto;
  gap: 6px;
  align-items: center;
  padding: 8px;
  background: var(--bg-muted);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
}
.recipe-row .cost-cell {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--ink-2);
  text-align: right;
  min-width: 80px;
}
.recipe-row select,
.recipe-row input {
  padding: 6px 8px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-1);
  background: var(--card);
  font-size: 13px;
}
.recipe-row input[type="number"] { font-family: var(--font-mono); text-align: right; }

@media (max-width: 720px) {
  .recipe-row {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "ing ing"
      "qty unit"
      "cost del";
  }
}

/* Search input */
.search-input {
  padding: 8px 12px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-2);
  background: var(--card);
  font-size: 13px;
  min-width: 220px;
}
.search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

/* Sensitivity table */
.sens-table th, .sens-table td { font-size: 12.5px; }
.sens-highlight {
  background: var(--accent);
  color: white;
  padding: var(--pad-3);
  border-radius: var(--r-2);
  text-align: center;
  margin: var(--pad-2) 0;
}
.sens-highlight .num {
  font-size: 32px;
  font-family: var(--font-mono);
  font-weight: 500;
  display: block;
  line-height: 1.1;
}
.sens-highlight .label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 6px;
  opacity: 0.85;
}

/* Wizard steps */
.wizard-steps {
  display: flex;
  gap: 4px;
  margin-bottom: var(--pad-3);
  overflow-x: auto;
  padding-bottom: 4px;
}
.wizard-step {
  flex: 1;
  min-width: 100px;
  padding: 10px 12px;
  background: var(--bg-muted);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  font-size: 12px;
  color: var(--ink-3);
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.wizard-step .num-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
}
.wizard-step.active {
  background: var(--card);
  border-color: var(--accent);
  color: var(--ink);
}
.wizard-step.active .num-label { color: var(--accent); font-weight: 600; }
.wizard-step.done .num-label::before { content: '✓ '; color: var(--ok); }

/* Formula display */
.formula {
  padding: var(--pad-2);
  background: var(--bg-muted);
  border-radius: var(--r-2);
  font-family: var(--font-mono);
  font-size: 15px;
  overflow-x: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.formula .lbl { color: var(--ink-3); font-size: 11px; text-transform: uppercase; letter-spacing: 1px; font-family: var(--font-ui); }
.formula .val { color: var(--ink); font-weight: 500; }
.formula .op  { color: var(--ink-4); }
.formula .eq  { color: var(--accent); font-weight: 600; }

/* ============================================================
   Responsive: sidebar collapses on narrow screens
   ============================================================ */
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: 260px;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 0.2s ease-out;
    box-shadow: none;
  }
  .app-shell.sidebar-open .sidebar {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(23, 20, 12, 0.15);
  }
  .app-shell.sidebar-open::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(23, 20, 12, 0.35);
    z-index: 40;
  }
  .sidebar-open { display: inline-flex; align-items: center; justify-content: center; }
  .sidebar-close { display: inline-flex; align-items: center; justify-content: center; margin-left: auto; }

  .view { padding: var(--pad-2); }
  .hero-num { font-size: 30px; }
  .hero-num.big { font-size: 36px; }
}

/* Utility */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--pad-1); }
.mb-2 { margin-bottom: var(--pad-2); }
.mb-3 { margin-bottom: var(--pad-3); }
.mt-2 { margin-top: var(--pad-2); }
.mt-3 { margin-top: var(--pad-3); }

.row { display: flex; gap: var(--pad-1); align-items: center; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: var(--pad-2); }
.spacer { flex: 1; }

.text-mute  { color: var(--ink-3); }
.text-small { font-size: 12px; }
.text-tiny  { font-size: 11px; }
.text-ok    { color: var(--ok); }
.text-warn  { color: var(--warn); }
.text-danger{ color: var(--danger); }
.text-accent{ color: var(--accent); }
.text-right { text-align: right; }
.text-center{ text-align: center; }

.divider {
  height: 1px;
  background: var(--line);
  margin: var(--pad-2) 0;
}

.tag-list { display: flex; flex-wrap: wrap; gap: 4px; }

/* Print-friendly */
@media print {
  .sidebar, .topbar-right, .btn { display: none !important; }
}