/* ============================================================
   MST Cuts — internal estimator
   Restrained design for a sales tool. Calm palette, clear
   hierarchy, tabular numbers, generous breathing room.
   ============================================================ */

:root {
  --bg:           #FAFAFA;
  --surface:      #FFFFFF;
  --surface-2:    #F5F5F5;
  --border:       #E4E4E7;
  --border-strong:#D4D4D8;
  --ink:          #09090B;
  --ink-soft:     #52525B;
  --ink-faint:    #A1A1AA;
  --accent:       #2563EB;
  --accent-hover: #1D4ED8;
  --danger:       #DC2626;
  --warn:         #D97706;
  --warn-bg:      #FFFBEB;
  --success:      #16A34A;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow:    0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);

  --radius: 6px;
  --content: 1080px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
[x-cloak] { display: none !important; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "tnum" 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main { flex: 1 0 auto; }
.site-footer { flex-shrink: 0; }

/* --- typography --------------------------------------------- */
h1, h2, h3 { margin: 0 0 0.5rem; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 1.75rem; line-height: 1.2; }
h2 { font-size: 1.15rem; line-height: 1.3; }
h3 { font-size: 0.95rem; line-height: 1.3; color: var(--ink-soft); }

p { margin: 0 0 0.75rem; }
small { color: var(--ink-faint); font-size: 0.78rem; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.mono, .num { font-family: var(--font-mono); font-feature-settings: "tnum"; }

/* --- topbar ------------------------------------------------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.85rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 20;
}
.topbar .brand {
  display: flex; align-items: center; gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}
.topbar .brand-mark {
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}
.topbar .brand-suffix {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border-left: 1px solid var(--border-strong);
  padding-left: 0.7rem;
}
.topbar nav { display: flex; gap: 1.5rem; align-items: center; }
.topbar nav a { color: var(--ink-soft); font-size: 0.88rem; }
.topbar nav a:hover { color: var(--accent); text-decoration: none; }
.topbar .user { color: var(--ink-faint); font-size: 0.82rem; }
.topbar .user { overflow-wrap: anywhere; }
.topbar button.link {
  background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--ink-soft); font: inherit; font-size: 0.88rem;
}
.topbar button.link:hover { color: var(--accent); }

main {
  max-width: var(--content);
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
}

/* --- buttons ------------------------------------------------ */
.btn, button {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font);
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  line-height: 1.3;
}
.btn:hover, button:hover {
  background: var(--surface-2);
  text-decoration: none;
  border-color: var(--ink-soft);
}
.btn.primary, button.primary {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}
.btn.primary:hover, button.primary:hover {
  background: #27272A;
  border-color: #27272A;
}
.btn.danger, button.danger {
  border-color: var(--danger);
  color: var(--danger);
  background: var(--surface);
}
.btn.danger:hover, button.danger:hover {
  background: var(--danger);
  color: white;
}
.btn.subtle {
  border-color: transparent;
  background: transparent;
  color: var(--ink-soft);
}
.btn.subtle:hover {
  background: var(--surface-2);
  border-color: var(--border);
  color: var(--ink);
}

/* --- forms -------------------------------------------------- */
label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-soft);
  margin: 1rem 0 0;
}
label > .key, label > .keyrow {
  display: flex; align-items: center;
  font-weight: 500;
}
label > .keyrow { gap: 0.4rem; justify-content: space-between; }

input[type=text], input[type=number], input[type=search], input[type=email],
input:not([type]), select, textarea {
  display: block;
  width: 100%;
  padding: 0.5rem 0.7rem;
  margin-top: 0.25rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font);
  font-size: 0.95rem;
  border-radius: var(--radius);
  transition: border-color 0.12s, box-shadow 0.12s;
}

input[type=search] {
  -webkit-appearance: none;
  appearance: none;
}
input[type=search]::-webkit-search-cancel-button {
  -webkit-appearance: none;
  appearance: none;
  height: 16px; width: 16px;
  margin-left: 8px;
  cursor: pointer;
  background: var(--ink-faint);
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path stroke='black' stroke-width='1.6' stroke-linecap='round' d='M4 4l8 8M12 4l-8 8'/></svg>");
          mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path stroke='black' stroke-width='1.6' stroke-linecap='round' d='M4 4l8 8M12 4l-8 8'/></svg>");
  -webkit-mask-size: 16px 16px;
          mask-size: 16px 16px;
}
input[type=search]::-webkit-search-cancel-button:hover {
  background: var(--danger);
}
input[type=number], input[type=search] { font-family: var(--font-mono); font-feature-settings: "tnum"; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}
textarea { min-height: 4em; resize: vertical; }
select { cursor: pointer; }

.help-text {
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin-top: 0.3rem;
}

/* --- info-tooltip (?) icon ---------------------------------- */
.help {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px;
  border: 1px solid var(--ink-faint);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--ink-faint);
  background: var(--surface);
  cursor: help;
  position: relative;
  flex-shrink: 0;
  user-select: none;
  font-style: italic;
}
.help:hover { color: var(--accent); border-color: var(--accent); }
.help::before { content: "i"; }
.help[data-tip]:hover::after,
.help[data-tip]:focus::after {
  content: attr(data-tip);
  position: absolute;
  left: calc(100% + 10px); top: 50%;
  transform: translateY(-50%);
  background: var(--ink);
  color: var(--bg);
  padding: 0.55rem 0.75rem;
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 400;
  font-style: normal;
  line-height: 1.45;
  letter-spacing: 0;
  text-transform: none;
  white-space: normal;
  width: max-content; max-width: 280px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 100;
  pointer-events: none;
}

/* --- card --------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

/* --- table -------------------------------------------------- */
table { width: 100%; border-collapse: collapse; }
table th, table td {
  padding: 0.65rem 0.6rem;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--border);
}
table th {
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  background: var(--surface-2);
}
table td.num, table .num { font-family: var(--font-mono); font-feature-settings: "tnum"; text-align: right; }

/* --- login -------------------------------------------------- */
/* === sign-in screen ============================================ */
.signin {
  min-height: calc(100vh - 56px);
  display: grid; place-items: center;
  padding: 2rem 1.5rem;
  background:
    radial-gradient(circle at 20% 0%, rgba(37, 99, 235, 0.06), transparent 55%),
    radial-gradient(circle at 90% 95%, rgba(184, 88, 68, 0.05), transparent 55%),
    var(--bg);
}
.signin-grid {
  width: 100%; max-width: 880px;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(360px, 1.2fr);
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 12px 40px rgba(31, 35, 48, 0.08), 0 2px 6px rgba(31, 35, 48, 0.04);
  overflow: hidden;
}
@media (max-width: 720px) {
  .signin-grid { grid-template-columns: 1fr; }
  .signin-aside { display: none !important; }
}

.signin-aside {
  background:
    repeating-linear-gradient(0deg, rgba(31, 35, 48, 0.04) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(31, 35, 48, 0.04) 0 1px, transparent 1px 28px),
    linear-gradient(155deg, #09090B 0%, #27272A 100%);
  display: grid; place-items: center;
  padding: 2rem;
  position: relative;
}
.signin-aside-error {
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.04) 0 1px, transparent 1px 28px),
    linear-gradient(155deg, #6B1F1F 0%, #2D1818 100%);
}
.signin-tilework {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 1fr;
  gap: 8px;
  width: 100%;
  aspect-ratio: 4 / 3;
}
.signin-tilework span {
  background: rgba(245, 241, 234, 0.06);
  border: 1px solid rgba(245, 241, 234, 0.12);
  border-radius: 2px;
}
.signin-tilework span:nth-child(2),
.signin-tilework span:nth-child(7),
.signin-tilework span:nth-child(10) {
  background: rgba(184, 88, 68, 0.35);
  border-color: rgba(184, 88, 68, 0.5);
}
.signin-tilework span:nth-child(5) {
  background: rgba(245, 241, 234, 0.18);
  border-color: rgba(245, 241, 234, 0.3);
}

.signin-main {
  padding: 3rem 2.75rem 2.5rem;
  display: flex; flex-direction: column;
  justify-content: center;
}
.signin-mark {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.25rem;
}
.signin-title {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0 0 1rem;
}
.signin-lede {
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 0 1.75rem;
  max-width: 36ch;
}
.signin-lede code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink);
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 3px;
}
.signin-cta {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 500;
  align-self: flex-start;
}
.signin-meta {
  list-style: none;
  margin: 2rem 0 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--border);
  display: flex; gap: 2rem; flex-wrap: wrap;
}
.signin-meta li {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink);
  display: flex; flex-direction: column; gap: 0.15rem;
}
.signin-meta li span {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.signin-meta li code {
  font: inherit;
  color: var(--ink);
}

/* --- dashboard --------------------------------------------- */
.page-header {
  display: flex; justify-content: space-between; align-items: end; gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-header h1 { margin: 0; }

.search-bar {
  display: flex; gap: 0.5rem; margin-bottom: 1.25rem;
}
.search-bar input { flex: 1; max-width: 360px; }

.quotes-table {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.quotes-table tbody tr { cursor: pointer; transition: background 0.1s; }
.quotes-table tbody tr:hover { background: var(--surface-2); }
.quotes-table tbody tr:hover .quote-id { color: var(--accent); }
.quotes-table .quote-id { font-family: var(--font-mono); font-weight: 600; }
.quotes-table .empty { text-align: center; padding: 2rem; color: var(--ink-faint); }
.quotes-table .geo-summary { font-family: var(--font-mono); font-size: 0.85rem; color: var(--ink-soft); }

.pagination {
  display: flex; justify-content: space-between; align-items: center;
  margin: 1rem 0 0;
  padding: 0.85rem 0.25rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
  flex-wrap: wrap; gap: 0.75rem;
}
.pagination .page-info strong { color: var(--ink); font-weight: 600; }
.pagination .page-controls {
  display: flex; align-items: center; gap: 0.6rem;
}
.pagination .page-of {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* --- quote editor ------------------------------------------ */
.editor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 960px) {
  .editor-grid { grid-template-columns: 1fr; }
  .preview-pane { position: static !important; }
}

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.geometries-section { margin-top: 2rem; }
.geometries-section h2 {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  padding-bottom: 0.6rem; margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.unit-toggle {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.78rem; font-weight: 500;
  color: var(--ink-soft);
}
.unit-toggle select { width: auto; padding: 0.3rem 0.5rem; font-size: 0.85rem; margin: 0; }

fieldset.geometry-row {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.1rem 1.25rem 1.25rem;
  margin: 0 0 0.85rem;
  position: relative;
}
fieldset.geometry-row legend {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 0 0.4rem;
}
.geometry-row .grid-six {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem 1rem;
}
@media (max-width: 720px) { .geometry-row .grid-six { grid-template-columns: repeat(2, 1fr); } }
.geometry-row label { margin: 0; font-size: 0.72rem; letter-spacing: 0.04em; }
.geometry-row .dim-unit, .geometry-row .qty-unit {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-style: normal;
}
.geometry-row .remove-btn {
  position: absolute; top: 0.5rem; right: 0.5rem;
  background: transparent; border: 0; padding: 0.25rem 0.5rem;
  color: var(--ink-faint);
  font-size: 0.78rem; cursor: pointer;
}
.geometry-row .remove-btn:hover { color: var(--danger); background: transparent; border-color: transparent; }

details.override {
  margin: 1.25rem 0 0;
  padding: 0.85rem 1rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface-2);
}
details.override summary {
  font-size: 0.85rem; font-weight: 500;
  color: var(--ink-soft);
  cursor: pointer;
}
details.override[open] summary { color: var(--ink); margin-bottom: 0.5rem; }

.actions {
  display: flex; gap: 0.6rem; flex-wrap: wrap;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

/* --- preview pane ------------------------------------------ */
.preview-pane { position: sticky; top: 5rem; }
.preview-pane .card { padding: 1.25rem; }
.preview-pane h3 {
  font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border);
}
.summary table { font-size: 0.84rem; }
.summary table td { padding: 0.28rem 0; border: 0; }
.summary table td:first-child { color: var(--ink-soft); }
.summary table td:last-child {
  text-align: right;
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  white-space: nowrap;
}
.summary-meta {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border);
}
.summary-meta span strong { color: var(--ink); font-weight: 600; }
/* legacy summary-cut classes — retained empty for back-compat with cached partials */
.summary-cut, .summary-cut h4, .summary-cut .row-cut-total, .summary-cut .row-per-sf {}
.summary-grand {
  margin-top: 0.5rem;
  padding-top: 0.85rem;
  border-top: 2px solid var(--ink);
  width: 100%;
  font-size: 0.95rem;
}
.summary-grand .row-total td {
  padding-top: 0.4rem;
  font-weight: 700;
  font-size: 1.05rem;
}
.summary-grand .row-total td:last-child { color: var(--accent); }
.summary-grand td { padding: 0.2rem 0; border: 0; }
.summary-grand td:first-child { color: var(--ink-soft); }
.summary-grand td:last-child {
  text-align: right;
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  white-space: nowrap;
}

.warn {
  margin: 0.5rem 0 0;
  padding: 0.45rem 0.7rem;
  background: var(--warn-bg);
  border-left: 2px solid var(--warn);
  font-size: 0.8rem;
  color: var(--ink);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.warning-banner {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  margin: 0 0 1rem;
  padding: 0.85rem 1.1rem;
  background: var(--warn-bg);
  border: 1px solid var(--warn);
  border-left-width: 4px;
  border-radius: var(--radius);
  color: var(--ink);
}
.warning-banner .warning-icon {
  font-size: 1.2rem;
  line-height: 1;
  color: var(--warn);
  flex-shrink: 0;
}
.warning-banner .warning-list {
  display: grid;
  gap: 0.25rem;
  font-size: 0.9rem;
  line-height: 1.4;
}

.preview-empty {
  color: var(--ink-faint);
  font-size: 0.88rem;
  text-align: center;
  padding: 1.5rem 0.5rem;
}

/* --- quote view -------------------------------------------- */
.view-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem 1.5rem;
  margin: 1.5rem 0;
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.view-meta > div { min-width: 0; }     /* allow grid items to shrink so long values wrap */
.view-meta dl, .view-meta dt, .view-meta dd { margin: 0; }
.view-meta dt {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.25rem;
}
.view-meta dd {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  overflow-wrap: anywhere;             /* break long emails inside their column */
  line-height: 1.35;
}

/* --- quote view: hero ---------------------------------------- */
.quote-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: end;
  padding: 1.5rem 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}
.quote-hero .hero-left h1 { font-size: 2rem; margin: 0.2rem 0 0.4rem; }
.quote-hero .hero-sub {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin: 0;
}
.quote-hero .hero-right { text-align: right; }
.quote-hero .hero-total {
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  line-height: 1.05;
  margin-top: 0.2rem;
}
.quote-hero .hero-per-sqft {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-top: 0.15rem;
}
.quote-hero .hero-per-sqft span { color: var(--ink-faint); }
@media (max-width: 720px) {
  .quote-hero { grid-template-columns: 1fr; align-items: start; }
  .quote-hero .hero-right { text-align: left; }
}

/* --- quote view: action row ---------------------------------- */
.quote-actions {
  display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center;
  margin-bottom: 1rem;
}
.quote-actions .danger-link {
  color: var(--danger);
}
.quote-actions .danger-link:hover {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

/* --- quote view: cuts cards ---------------------------------- */
.cut-stack {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.cut-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1rem;
  box-shadow: var(--shadow-sm);
}
.cut-card header {
  display: flex; align-items: baseline; gap: 0.75rem; flex-wrap: wrap;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.cut-card .cut-num {
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-faint);
}
.cut-card .cut-headline {
  font-family: var(--font-mono);
  font-size: 1rem; font-weight: 600;
  color: var(--ink);
  flex: 1;
}
.cut-card .cut-price {
  font-family: var(--font-mono);
  font-size: 1.05rem; font-weight: 700;
  color: var(--accent);
  font-feature-settings: "tnum";
  white-space: nowrap;
}

.cut-card .clipboard-pair {
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
  align-items: stretch;
}
.cut-card .clipboard-pair > div {
  display: grid;
  grid-template-rows: auto 1fr auto;
}
@media (max-width: 720px) { .cut-card .clipboard-pair { grid-template-columns: 1fr; } }
.cut-card .clipboard-pair .label {
  font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.4rem;
}
.cut-card .clipboard-pair pre {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.5rem 0.7rem;
  margin: 0 0 0.5rem;
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-word;
  align-self: stretch;
}
.cut-card .clipboard-pair button {
  width: 100%;
  font-size: 0.82rem;
}
.cut-card .cut-diagram {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
  margin-bottom: 1rem;
}
.cut-card .cut-diagram svg {
  display: block;
  width: 100%;
  max-width: 540px;
  height: auto;
  margin: 0 auto;
}
.cut-card .cut-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.6rem 1.25rem;
  margin: 0 0 1rem;
}

.cut-cost {
  width: 100%;
  margin: 0 0 1rem;
  border-top: 1px dashed var(--border);
  padding-top: 0.85rem;
}
.cut-cost td {
  border: 0;
  padding: 0.28rem 0;
  font-size: 0.88rem;
}
.cut-cost td:first-child { color: var(--ink-soft); }
.cut-cost td:last-child {
  text-align: right;
  font-family: var(--font-mono);
  font-feature-settings: "tnum";
  white-space: nowrap;
}
.cut-cost tr.cut-cost-total td {
  border-top: 1px solid var(--ink);
  padding-top: 0.55rem;
  font-weight: 600;
  font-size: 1rem;
}
.cut-cost tr.cut-cost-total td:last-child { color: var(--accent); }
.cut-cost tr.cut-cost-total small {
  font-weight: 400; color: var(--ink-faint); font-size: 0.78rem;
}
.cut-cost tr.cut-cost-per-sf td { color: var(--ink-faint); font-size: 0.82rem; padding-top: 0.1rem; }
.cut-card .cut-stats > div { min-width: 0; }
.cut-card .cut-stats dt {
  font-family: var(--font-mono);
  font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 0.1rem;
}
.cut-card .cut-stats dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-feature-settings: "tnum";
  color: var(--ink);
}

/* --- quote view: clipboard strip ----------------------------- */
.clipboard-strip {
  margin-top: 1rem;
  padding: 0.85rem 1.1rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.clipboard-strip > summary {
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer;
  list-style: none;
}
.clipboard-strip > summary::-webkit-details-marker { display: none; }
.clipboard-strip > summary::after {
  content: "▾";
  color: var(--ink-faint);
  font-size: 0.85rem;
  transition: transform 0.15s ease;
}
.clipboard-strip[open] > summary { margin-bottom: 0.85rem; }
.clipboard-strip[open] > summary::after { transform: rotate(180deg); }
.clipboard-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 1rem;
  align-items: stretch;
}
.clipboard-inner > div {
  display: grid;
  grid-template-rows: auto 1fr auto;   /* label · content (stretches) · button */
}
@media (max-width: 720px) { .clipboard-inner { grid-template-columns: 1fr; } }
.clipboard-strip pre {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.55rem 0.7rem;
  margin: 0 0 0.5rem;
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--ink);
  align-self: stretch;
}
.clipboard-strip .label {
  font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 0.4rem;
}
.clipboard-strip button { width: 100%; }

.action-bar { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.clipboard {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.clipboard .label {
  font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 0.4rem;
}
.clipboard pre {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.5rem 0.7rem;
  margin: 0 0 0.5rem;
  border-radius: var(--radius);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}
.clipboard button { width: 100%; }

.revisions {
  margin: 2rem 0 0;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.revisions summary { cursor: pointer; font-size: 0.85rem; color: var(--ink-soft); }

/* --- settings ---------------------------------------------- */
.settings-form { max-width: 100%; }
.settings-row {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(160px, 280px) minmax(120px, 200px);
  gap: 1.25rem 2rem;
  align-items: center;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--border);
}
.settings-row .key {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex; align-items: center; gap: 0.5rem;
  color: var(--ink);
}
.settings-row input { margin: 0; }
.settings-row .default-hint {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--ink-faint);
  text-align: right;
}
@media (max-width: 720px) {
  .settings-row { grid-template-columns: 1fr; gap: 0.4rem; }
  .settings-row .default-hint { text-align: left; }
}

.computed-panel {
  margin: 1.75rem 0 1.25rem;
  padding: 1.1rem 1.25rem;
  background: rgba(37, 99, 235, 0.06);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.computed-panel h3 {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.7rem;
}
.computed-panel .formula {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--font-mono); font-size: 0.88rem;
  padding: 0.3rem 0;
}
.computed-panel .formula .label { color: var(--ink-soft); }
.computed-panel .formula .result {
  font-weight: 600; color: var(--ink); font-size: 1rem;
}

.settings-actions {
  display: flex; gap: 0.75rem;
  margin-top: 1.5rem; padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

/* --- toast / saved indicator ------------------------------- */
.saved-toast {
  position: fixed;
  top: 70px; right: 1.5rem;
  background: var(--success);
  color: #FFFFFF;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow);
  z-index: 200;
  transition: opacity 0.5s ease;
  animation: toast-in 0.3s ease;
}
.saved-toast strong { font-family: var(--font-mono); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- error / rejected -------------------------------------- */
.error-screen .auth-card { border-left: 3px solid var(--danger); }

/* --- footer ------------------------------------------------- */
.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 2rem;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.site-footer .footer-inner {
  max-width: var(--content);
  margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; flex-wrap: wrap;
}
.site-footer a { color: var(--ink-soft); text-decoration: none; }
.site-footer a:hover { color: var(--accent); text-decoration: underline; }
.site-footer .sep { margin: 0 0.5rem; color: var(--ink-faint); }
.site-footer .muted { color: var(--ink-faint); }
.site-footer strong { color: var(--ink); font-weight: 600; }

/* --- help doc ----------------------------------------------- */
.help-shell {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 760px);
  gap: 28px;
  align-items: start;
}
.help-title {
  position: sticky;
  top: 20px;
  padding: 4px 0;
}
.help-title h1 {
  font-size: 22px;
  font-weight: 600;
  margin: 6px 0;
  letter-spacing: -0.01em;
}
.help-title p {
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0;
}
.help-doc {
  max-width: 760px;
  margin: 0;
  padding: 20px 24px 4px;
}
.help-doc section {
  margin: 0 0 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.help-doc section:last-child { border-bottom: 0; }
.help-doc h2 {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.85rem;
}
.help-doc p, .help-doc li { color: var(--ink); line-height: 1.6; }
.help-doc code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink);
  background: var(--surface-2);
  padding: 1px 5px;
  border-radius: 3px;
}
.help-doc ol, .help-doc ul { padding-left: 1.4rem; }
.help-doc ol li, .help-doc ul li { margin: 0.4rem 0; }
.help-glossary { display: grid; grid-template-columns: 140px 1fr; gap: 0.5rem 1rem; margin: 0; }
.help-glossary dt { font-weight: 600; color: var(--ink); }
.help-glossary dd { margin: 0; color: var(--ink-soft); }

@media (max-width: 720px) {
  main {
    padding: 1.25rem 1rem 2.5rem;
  }
  .topbar {
    position: static;
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
    padding: 0.85rem 1rem;
  }
  .topbar .brand {
    min-width: 0;
    flex-wrap: wrap;
  }
  .topbar .brand-suffix {
    border-left: 0;
    padding-left: 0;
  }
  .topbar nav {
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
  }
  .page-header {
    align-items: flex-start;
    flex-direction: column;
  }
  .help-glossary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .help-shell {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .help-title {
    position: static;
  }
}

/* --- print -------------------------------------------------- */
@media print { body { background: white; } .topbar, .site-footer, .actions, .clipboard, .revisions { display: none; } }

/* ===========================================================
   Utility-first structural component classes.
   These are NEW component-level rules added on top of the token
   block. They share the existing tokens (--bg, --ink, --accent, etc.).
   =========================================================== */

/* ---- Editor topbar ---- */
.uf-top {
  display: flex; align-items: center; justify-content: space-between;
  height: 48px; padding: 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.uf-top-l { display: flex; align-items: center; gap: 12px; min-width: 0; flex: 1; }
.uf-top-r { display: flex; align-items: center; gap: 8px; }
.uf-back {
  width: 28px; height: 28px; border-radius: 4px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ink-soft); text-decoration: none;
}
.uf-back:hover { background: var(--surface-2); color: var(--ink); }
.uf-crumbs { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--ink-soft); }
.uf-crumbs .sep { color: var(--ink-faint); }
.uf-id-pill {
  font-family: var(--font-mono); font-size: 11px; font-weight: 500;
  background: var(--surface-2); padding: 2px 7px; border-radius: 3px;
  color: var(--ink-soft);
}
.uf-pipe { width: 1px; height: 20px; background: var(--border); }

.uf-unit-toggle {
  display: inline-flex; border: 1px solid var(--border); border-radius: 4px;
  overflow: hidden; background: var(--surface);
}
.uf-unit-toggle button {
  font: 500 11px var(--font-mono); letter-spacing: .04em; text-transform: uppercase;
  padding: 4px 10px; background: transparent; color: var(--ink-soft);
  border: none; border-right: 1px solid var(--border); cursor: pointer; min-width: 32px;
}
.uf-unit-toggle button:last-child { border-right: none; }
.uf-unit-toggle button:hover { background: var(--surface-2); }
.uf-unit-toggle button.on { background: var(--ink); color: white; }

.uf-form input.is-placeholder,
.uf-form select.is-placeholder { color: var(--ink-faint); }
.uf-form input::placeholder { color: var(--ink-faint); opacity: 1; }
.uf-form input.is-placeholder:focus,
.uf-form select.is-placeholder:focus { color: var(--ink); }
.uf-form input.is-error,
.uf-form select.is-error,
.uf-input.is-error,
.uf-customer-input.is-error {
  border-color: var(--danger) !important;
  background: #FEF2F2 !important;
  color: var(--ink);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.14) !important;
}
.uf-form input.is-error::placeholder { color: #B91C1C; }

.uf-validation-toast {
  position: fixed;
  top: 58px;
  right: 16px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: min(360px, calc(100vw - 32px));
  padding: 9px 12px;
  border: 1px solid #FECACA;
  border-radius: 5px;
  background: #FEF2F2;
  color: #991B1B;
  box-shadow: var(--shadow);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.35;
}
.uf-validation-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--danger);
}

.uf-running {
  display: inline-flex; align-items: baseline; gap: 6px;
  font-size: 12px; color: var(--ink-soft); padding: 0 6px;
}
.uf-running strong { font-family: var(--font-mono); font-size: 14px; color: var(--ink); }
.uf-saved-pill {
  font-size: 11px; color: var(--success);
  background: rgba(22, 163, 74, 0.1);
  padding: 4px 10px; border-radius: 3px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 5px;
}

/* ---- Editor body 3-col layout ---- */
.uf-body {
  display: grid; grid-template-columns: 252px 1fr 312px;
  height: calc(100vh - 48px);
  overflow: hidden;
}

/* ---- Rail ---- */
.uf-rail {
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column; overflow: hidden;
}
.uf-rail-h {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 12px;
  font-size: 11px; font-weight: 500; color: var(--ink-soft);
  border-bottom: 1px solid var(--border);
}
.uf-count-tag {
  font-family: var(--font-mono); font-size: 10px;
  background: var(--surface-2); color: var(--ink-soft);
  padding: 1px 5px; border-radius: 3px;
}
.uf-cutlist { flex: 1; overflow-y: auto; padding: 4px; }
.uf-cutitem {
  display: grid; grid-template-columns: 44px 1fr; gap: 8px; align-items: center;
  width: 100%; padding: 6px 8px;
  border: 1px solid transparent; border-radius: 4px;
  background: transparent; text-align: left; cursor: pointer;
  margin-bottom: 1px; font-family: var(--font);
}
.uf-cutitem:hover { background: var(--surface-2); }
.uf-cutitem.active {
  background: rgba(37, 99, 235, 0.08); color: var(--accent);
}
.uf-cutitem-thumb {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 3px; height: 30px;
  display: flex; align-items: center; justify-content: center;
}
.uf-cutitem.active .uf-cutitem-thumb { border-color: var(--accent); }
.uf-cutitem-meta { min-width: 0; }
.uf-cutitem-title { font-size: 12.5px; font-weight: 500; }
.uf-cutitem-sub { display: flex; justify-content: space-between; font-size: 11px; color: var(--ink-soft); }

.uf-rail-foot {
  border-top: 1px solid var(--border); padding: 10px 12px; background: var(--surface);
  display: flex; flex-direction: column; gap: 3px;
}
.uf-rail-foot-row {
  display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-soft);
}
.uf-rail-foot-row.total {
  margin-top: 4px; padding-top: 6px;
  border-top: 1px solid var(--border);
  font-weight: 500; color: var(--ink);
}

/* ---- Stage ---- */
.uf-stage {
  display: flex; flex-direction: column;
  padding: 16px 20px;
  overflow: hidden; gap: 12px; background: var(--bg);
}
.uf-stage-h {
  display: flex; justify-content: space-between; align-items: center;
}
.uf-stage-h h2 {
  margin: 0; font-size: 14px; font-weight: 600; letter-spacing: -0.01em;
  display: inline-flex; align-items: center; gap: 8px;
}
.uf-stage-h h2 .arrow { color: var(--ink-faint); font-weight: 400; }
.uf-card.flush { box-shadow: var(--shadow-sm); border-radius: 6px;
  background: var(--surface); border: 1px solid var(--border); }

.uf-form {
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 170px 74px 170px 86px;
  gap: 12px;
  align-items: start;
  justify-content: start;
}
.uf-field {
  display: grid;
  grid-template-rows: 14px 30px;
  row-gap: 4px;
  min-width: 0;
}
.uf-field-source { grid-column: 1; }
.uf-field-thickness { grid-column: 2; }
.uf-field-finished { grid-column: 3; }
.uf-field-quantity { grid-column: 4; }
.uf-field label {
  display: flex; align-items: center;
  height: 14px; line-height: 14px;
  margin: 0;
  font-size: 11px; color: var(--ink-soft); font-weight: 500;
}
.uf-input, .uf-select {
  height: 30px; padding: 0 8px;
  border: 1px solid var(--border); border-radius: 4px;
  background: var(--surface); color: var(--ink);
  font-family: var(--font); font-size: 13px; outline: none;
  box-sizing: border-box; margin: 0;
  transition: border-color .12s, box-shadow .12s;
}
.uf-input:focus, .uf-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}
.uf-dim-pair {
  display: inline-grid;
  grid-template-columns: minmax(0, 1fr) 12px minmax(0, 1fr) auto;
  align-items: center; column-gap: 4px;
  border: 1px solid var(--border); border-radius: 4px;
  background: var(--surface); padding: 0 6px; height: 30px;
  width: 100%; box-sizing: border-box;
}
.uf-dim-pair:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}
.uf-dim-pair input {
  width: 100%; min-width: 0;
  border: none; outline: none; padding: 4px 0;
  font-family: var(--font-mono); font-size: 12.5px;
  background: transparent; text-align: right; color: var(--ink);
}
.uf-dim-pair .x + input { text-align: left; }
.uf-field-quantity .uf-dim-pair {
  grid-template-columns: minmax(0, 1fr) auto;
}
.uf-dim-pair input[type=number] {
  -moz-appearance: textfield;
}
.uf-dim-pair input[type=number]::-webkit-outer-spin-button,
.uf-dim-pair input[type=number]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.uf-dim-pair .x { color: var(--ink-faint); font-size: 12px; text-align: center; }
.uf-dim-pair .suffix {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--ink-faint); margin-left: 1px; white-space: nowrap;
}
.uf-field-thickness .uf-select {
  width: 100%;
  font-family: var(--font-mono);
  line-height: 28px;
  display: block;
}

.uf-diagram {
  flex: 1; min-height: 240px;
  background: var(--surface);
  border: 1px solid var(--border); border-radius: 6px;
  overflow: hidden; position: relative;
}
.uf-result {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 14px; padding: 12px 14px;
}
.uf-result-cell { display: flex; flex-direction: column; gap: 2px; }
.uf-result-cell label { font-size: 11px; color: var(--ink-soft); font-weight: 500; }
.uf-result-v { font-size: 14px; font-weight: 500; color: var(--ink); }
.uf-result-v.warn { color: var(--warn); }
.uf-result-v.ok { color: var(--success); }
.uf-result-cell.strong .uf-result-v { font-size: 16px; font-weight: 600; }

.uf-yield {
  margin-top: 0; padding: 8px 12px;
  background: var(--warn-bg);
  border: 1px solid #FDE68A; border-radius: 4px;
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: #92400E;
}
.uf-yield .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--warn); }
.uf-link {
  margin-left: auto; background: none; border: none;
  color: var(--accent); font-weight: 500; cursor: pointer;
  font-size: 12px; padding: 0;
}
.uf-link:hover { text-decoration: underline; }

/* ---- Pricing pane (editing mode) ---- */
.uf-pricing {
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  overflow-y: auto; padding: 14px; gap: 12px;
}
.uf-price-block {
  border: 1px solid var(--border); border-radius: 6px;
  padding: 12px 14px; background: var(--surface);
}
.uf-price-hero {
  border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface); padding: 14px 16px;
}
.uf-price-hero-h {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 11px; color: var(--ink-soft); font-weight: 500;
}
.uf-price-total {
  font-family: var(--font-mono); font-size: 28px; font-weight: 600;
  letter-spacing: -0.02em; line-height: 1.1;
  margin: 4px 0 2px; color: var(--ink);
}
.uf-price-per {
  display: flex; justify-content: space-between;
  font-size: 11px; color: var(--ink-soft);
  font-family: var(--font-mono);
}
.uf-lever-h {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 8px;
  font-size: 12px; font-weight: 500; color: var(--ink);
}
.uf-stepper {
  display: grid; grid-template-columns: 28px 1fr 28px; gap: 6px;
  align-items: center;
}
.uf-stepper button {
  height: 28px; border: 1px solid var(--border); background: var(--surface);
  border-radius: 4px; font-size: 14px; cursor: pointer;
  color: var(--ink-soft); font-family: var(--font);
}
.uf-stepper button:hover { border-color: var(--ink); color: var(--ink); }
.uf-stepper-val { text-align: center; }
.uf-stepper-val .num {
  font-size: 18px; font-weight: 600; color: var(--ink);
  font-family: var(--font-mono);
}
.uf-stepper-val .faint { display: block; font-size: 10px; color: var(--ink-faint); }
.uf-savings {
  margin-top: 6px; font-size: 11px; color: var(--success);
  padding: 4px 8px; background: rgba(22, 163, 74, 0.08); border-radius: 3px;
  display: inline-block;
}
.uf-bd-row {
  display: flex; justify-content: space-between;
  font-size: 12px; padding: 3px 0;
}
.uf-bd-row.muted { color: var(--ink-soft); }
.uf-bd-row.total {
  margin-top: 4px; padding-top: 6px;
  border-top: 1px solid var(--border);
  font-weight: 600; color: var(--ink);
}
.uf-warn-card {
  font-size: 11px; padding: 8px 10px;
  background: var(--warn-bg);
  border: 1px solid #FDE68A; border-radius: 4px;
  display: flex; gap: 8px; align-items: flex-start;
  color: #78350F;
}
.uf-warn-card .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--warn); margin-top: 5px; }
.uf-notes-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  padding: 10px 12px;
}
.uf-notes-h {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 8px; margin-bottom: 7px;
  font-size: 11px; color: var(--ink-soft); font-weight: 500;
}
.uf-notes-h label,
.uf-notes-h span:first-child {
  color: var(--ink);
  font-size: 12px;
}
.uf-notes-input {
  width: 100%;
  min-height: 72px;
  resize: vertical;
  box-sizing: border-box;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface-2);
  padding: 8px 9px;
  font-family: var(--font);
  font-size: 12px;
  line-height: 1.45;
  color: var(--ink);
  outline: none;
}
.uf-notes-input:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}
.uf-notes-input::placeholder { color: var(--ink-faint); }
.uf-notes-card.readonly {
  padding: 0 0 10px;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
}
.uf-notes-card.readonly .uf-notes-h { margin-bottom: 6px; }
.uf-notes-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 12px;
  line-height: 1.45;
  color: var(--ink-soft);
}

/* ---- Handoff pane (saved mode) ---- */
.uf-handoff {
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  overflow-y: auto; padding: 14px;
}
.uf-handoff-h {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 14px;
}
.uf-handoff-target {
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
  margin-top: 2px; color: var(--ink);
}
.uf-handoff-stack { display: flex; flex-direction: column; gap: 14px; }
.uf-clipline { display: flex; flex-direction: column; gap: 6px; }
.uf-clipline-h { display: flex; justify-content: space-between; font-size: 11px; }
.uf-clipline-num { font-family: var(--font-mono); font-weight: 600; color: var(--accent); }
.uf-clipline-dim { color: var(--ink-soft); }

.uf-clip-btn {
  display: block; width: 100%; padding: 8px 10px;
  border: 1px solid var(--border); background: var(--surface);
  border-radius: 4px; cursor: pointer; text-align: left;
  transition: all .12s; font-family: var(--font);
}
.uf-clip-btn:hover { border-color: var(--accent); background: rgba(37, 99, 235, 0.06); }
.uf-clip-btn.ok { border-color: var(--success); background: rgba(22, 163, 74, 0.08); }
.uf-clip-label {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 4px;
}
.uf-clip-action { color: var(--accent); font-weight: 600; }
.uf-clip-btn.ok .uf-clip-action { color: var(--success); }
.uf-clip-text {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--ink); line-height: 1.4;
  white-space: pre-wrap; word-break: break-word;
}
.uf-clip-btn.total .uf-clip-text { font-size: 14px; font-weight: 600; }

.uf-handoff-foot {
  margin-top: 16px; border-top: 1px solid var(--border);
  padding-top: 12px;
  display: flex; flex-direction: column; gap: 10px;
}
.uf-handoff-foot-row { display: flex; justify-content: space-between; align-items: baseline; }
.uf-handoff-foot-row .num.strong { font-size: 15px; font-weight: 600; }
.uf-handoff-actions { display: flex; flex-direction: column; gap: 6px; }

/* ---- Buttons (uf-btn) ---- */
.uf-btn {
  height: 28px; padding: 0 10px;
  border: 1px solid var(--border); background: var(--surface);
  font-family: var(--font); font-size: 12px; font-weight: 500;
  border-radius: 4px; cursor: pointer; color: var(--ink);
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  text-decoration: none;
  transition: background .12s, border-color .12s;
}
.uf-btn:hover { background: var(--surface-2); border-color: var(--border-strong); }
.uf-btn.primary { background: var(--ink); color: white; border-color: var(--ink); }
.uf-btn.primary:hover { background: #27272A; }
.uf-btn.accent { background: var(--accent); color: white; border-color: var(--accent); }
.uf-btn.accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.uf-btn.subtle { border-color: transparent; background: transparent; color: var(--ink-soft); }
.uf-btn.subtle:hover { background: var(--surface-2); color: var(--ink); }
.uf-btn.danger { color: var(--danger); border-color: transparent; background: transparent; }
.uf-btn.danger:hover { background: var(--danger); color: white; border-color: var(--danger); }
.uf-mini {
  height: 24px; padding: 0 8px;
  border: 1px solid var(--border); background: var(--surface);
  font-size: 11px; border-radius: 3px; cursor: pointer;
  color: var(--ink); font-family: var(--font);
}
.uf-mini:hover { background: var(--surface-2); }
.uf-mini.danger:hover { color: var(--danger); border-color: var(--danger); }
.uf-mini:disabled { opacity: 0.4; cursor: not-allowed; }

/* ---- Customer input (inline, in topbar) ---- */
.uf-customer-input {
  display: block;
  width: auto;
  height: 28px;
  margin: 0;
  font-size: 13px; font-weight: 500;
  border: 1px solid transparent; background: transparent; outline: none;
  padding: 0 8px; border-radius: 4px;
  color: var(--ink); flex: 0 1 220px; min-width: 150px; max-width: 240px;
}
.uf-customer-input:hover { background: var(--surface-2); }
.uf-customer-input:focus { background: var(--surface); border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18); }

/* ---- Dashboard ---- */
.uf-db-top {
  display: flex; justify-content: space-between; align-items: center;
  height: 48px; padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.uf-db-brand {
  font-size: 13px; font-weight: 600; letter-spacing: -0.01em;
  display: inline-flex; align-items: center; gap: 8px;
  min-width: 0;
  flex-wrap: wrap;
}
.uf-db-brand-dot { width: 14px; height: 14px; border-radius: 3px; background: var(--ink); }
.uf-db-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.uf-db-action-user {
  font-size: 12px;
  overflow-wrap: anywhere;
}
.uf-db-body {
  padding: 20px 24px 28px;
  background: var(--bg);
}

.uf-kpis {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
  margin-bottom: 20px;
}
.uf-kpi {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 12px 14px;
}
.uf-kpi-h {
  font-size: 11px; color: var(--ink-soft); font-weight: 500;
  display: flex; justify-content: space-between; align-items: center;
}
.uf-kpi-trend {
  font-family: var(--font-mono); font-size: 10px;
  padding: 1px 5px; border-radius: 3px;
  background: rgba(22, 163, 74, 0.1); color: var(--success);
}
.uf-kpi-trend.flat { background: var(--surface-2); color: var(--ink-soft); }
.uf-kpi-val {
  font-family: var(--font-mono); font-size: 24px; font-weight: 600;
  letter-spacing: -0.02em; line-height: 1.2;
  margin: 6px 0 2px;
}
.uf-kpi-val .suffix {
  font-size: 13px; color: var(--ink-faint); margin-left: 2px; font-weight: 500;
}
.uf-kpi-sub { font-size: 11px; color: var(--ink-soft); }

.uf-filter {
  display: flex; gap: 10px; align-items: center;
  margin-bottom: 14px;
}
.uf-search {
  flex: 1; height: 32px; padding: 0 10px 0 30px;
  border: 1px solid var(--border); border-radius: 4px;
  font-family: var(--font); font-size: 13px;
  outline: none; background: var(--surface);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23A1A1AA' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='11' cy='11' r='8'/><path d='m21 21-4.3-4.3'/></svg>");
  background-repeat: no-repeat; background-position: 10px center;
}
.uf-search:focus { border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18); }

.uf-group { margin-bottom: 20px; }
.uf-group-h {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 0 4px 8px;
  font-size: 11px; font-weight: 500; color: var(--ink-soft);
  border-bottom: 1px solid var(--border);
}

.uf-list {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; overflow: hidden;
  margin-top: 8px;
}
.uf-row {
  display: grid;
  grid-template-columns: 96px 2fr 1.6fr 110px 24px;
  gap: 16px; align-items: center;
  padding: 12px 14px;
  text-decoration: none; color: var(--ink);
  border-bottom: 1px solid var(--border);
  transition: background .1s;
}
.uf-row:last-child { border-bottom: none; }
.uf-row:hover { background: var(--surface-2); }
.uf-row-id { display: flex; flex-direction: column; gap: 3px; }
.uf-row-q { font-family: var(--font-mono); font-size: 12.5px; font-weight: 600; }
.uf-row-cust-name { font-size: 13px; font-weight: 500; }
.uf-row-cuts { display: flex; flex-direction: column; gap: 4px; }
.uf-row-cuts-thumbs { display: flex; align-items: center; gap: 4px; }
.uf-cut-thumb { border: 1px solid var(--border); border-radius: 2px; background: var(--surface); }
.uf-row-more {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--ink-faint); padding-left: 4px;
}
.uf-row-total { text-align: right; }
.uf-row-total .num { font-size: 13px; font-weight: 500; }
.uf-row-arrow {
  color: var(--ink-faint); text-align: right;
  opacity: 0; transition: opacity .1s;
}
.uf-row:hover .uf-row-arrow { opacity: 1; color: var(--ink); }

/* ---- Settings page ---- */
.st-body {
  display: grid;
  grid-template-columns: 200px 1fr 320px;
  height: calc(100vh - 48px);
  overflow: hidden;
}
.st-nav {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex; flex-direction: column;
  overflow-y: auto;
}
.st-nav-h {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-faint);
  padding: 0 8px 8px;
}
.st-nav-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 8px; border-radius: 4px;
  font-size: 13px; color: var(--ink); text-decoration: none;
  transition: background .12s;
}
.st-nav-item:hover { background: var(--surface-2); }
.st-nav-dot {
  font-size: 10px; padding: 1px 6px; border-radius: 8px;
  background: var(--accent); color: white; font-weight: 600;
  font-family: var(--font-mono);
}

.st-main {
  overflow-y: auto;
  padding: 24px 32px 100px;
}
.st-intro { margin-bottom: 28px; max-width: 640px; }
.st-intro h1 { font-size: 22px; font-weight: 600; margin: 0 0 6px; letter-spacing: -0.01em; }
.st-intro p { font-size: 13px; color: var(--ink-soft); line-height: 1.55; margin: 0; }

.st-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 18px;
  overflow: hidden;
}
.st-sec-h { padding: 16px 20px; border-bottom: 1px solid var(--border); }
.st-sec-h h2 { font-size: 14px; font-weight: 600; margin: 0 0 2px; }
.st-sec-h p { font-size: 12px; color: var(--ink-soft); margin: 0; }

.st-rows { display: flex; flex-direction: column; }
.st-row {
  display: grid;
  grid-template-columns: 1fr 200px 130px;
  gap: 16px; padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.st-row:last-child { border-bottom: none; }
.st-row.dirty { background: rgba(37, 99, 235, 0.06); }
.st-row-label {
  font-size: 13px; font-weight: 500;
  display: flex; align-items: center; gap: 8px;
}
.st-diff-pill {
  font-family: var(--font-mono);
  font-size: 9px; padding: 2px 6px; border-radius: 3px;
  background: var(--accent); color: white;
  letter-spacing: .05em; text-transform: uppercase;
}
.st-row-tip { font-size: 11.5px; color: var(--ink-soft); line-height: 1.45; margin-top: 2px; }
.st-row-input { display: flex; align-items: center; gap: 8px; }
.st-row-input .uf-input {
  width: 100px; height: 32px;
  font-family: var(--font-mono); font-size: 13px;
  text-align: right;
}
.st-row-unit { font-size: 11px; color: var(--ink-soft); font-family: var(--font-mono); }
.st-row-default {
  font-size: 11px;
  display: flex; flex-direction: column; gap: 1px;
  color: var(--ink-faint);
}
.st-row-default-label {
  font-family: var(--font-mono);
  letter-spacing: .08em; text-transform: uppercase; font-size: 9px;
}
.st-row-default .num { color: var(--ink-soft); font-size: 12px; }
.st-row-was { color: var(--accent); font-size: 10.5px; margin-top: 2px; }

.st-derived {
  display: flex;
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  padding: 10px 20px;
  gap: 24px; flex-wrap: wrap;
}
.st-derived-cell { display: flex; flex-direction: column; gap: 1px; min-width: 160px; }
.st-derived-label {
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-faint);
}
.st-derived-formula { font-family: var(--font-mono); font-size: 10px; color: var(--ink-soft); }
.st-derived-val { font-size: 14px; font-weight: 600; margin-top: 2px; }

.st-history { display: flex; flex-direction: column; }
.st-history-row {
  display: grid;
  grid-template-columns: 50px 140px 160px 1fr 60px;
  gap: 12px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  align-items: center;
}
.st-history-row:last-child { border-bottom: none; }
.st-h-v { font-family: var(--font-mono); font-weight: 600; color: var(--accent); }
.st-h-when, .st-h-who { color: var(--ink-soft); font-family: var(--font-mono); font-size: 11px; }
.st-h-link { color: var(--accent); font-size: 11px; text-decoration: none; }

.st-impact {
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 14px 16px;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 14px;
}
.st-impact-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  display: flex; flex-direction: column; gap: 6px;
}
.st-impact-row { display: flex; justify-content: space-between; font-size: 12px; }
.st-impact-row.hero {
  font-size: 14px;
  padding-top: 6px; margin-top: 4px;
  border-top: 1px solid var(--border);
}
.st-impact-row.hero .num.strong { font-size: 18px; font-weight: 600; }
.st-impact-delta {
  margin-top: 6px;
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 12px; font-weight: 500;
  padding: 6px 8px; border-radius: 4px;
}
.st-impact-delta.up { color: var(--warn); background: rgba(217, 119, 87, 0.08); }
.st-impact-delta.down { color: var(--success); background: rgba(22, 163, 74, 0.08); }

.st-dirty-pill {
  font-size: 11px;
  padding: 4px 10px; border-radius: 3px;
  background: rgba(37, 99, 235, 0.08); color: var(--accent);
  font-weight: 500;
}
.st-save-bar {
  position: sticky; bottom: 0; left: 0; right: 0;
  padding: 10px 20px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  z-index: 10;
}

/* ---- Responsive utility-first layouts ---- */
@media (max-width: 1180px) {
  .uf-body { grid-template-columns: 220px minmax(0, 1fr) 286px; }
  .uf-stage { padding: 14px; }
  .uf-result { grid-template-columns: repeat(3, 1fr); }
  .uf-row { grid-template-columns: 76px minmax(0, 1.6fr) minmax(150px, 1fr) 96px 18px; gap: 12px; }
  .st-body { grid-template-columns: 176px minmax(0, 1fr) 300px; }
  .st-row { grid-template-columns: 1fr 170px 110px; gap: 12px; }
}

@media (max-width: 980px) {
  .uf-top,
  .uf-db-top {
    height: auto;
    min-height: 48px;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 12px;
  }
  .uf-top-l,
  .uf-top-r {
    flex-wrap: wrap;
  }
  .uf-db-actions {
    gap: 8px;
  }
  .uf-top-r {
    justify-content: flex-end;
  }
  .uf-customer-input {
    flex: 1 1 220px;
    min-width: 160px;
  }
  .uf-body {
    display: flex;
    flex-direction: column;
    height: auto;
    min-height: calc(100vh - 68px);
    overflow: visible;
  }
  .uf-rail {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    max-height: none;
    overflow: visible;
  }
  .uf-cutlist {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 8px;
  }
  .uf-cutitem {
    min-width: 178px;
    margin-bottom: 0;
  }
  .uf-rail-foot {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
  .uf-rail-foot-row,
  .uf-rail-foot-row.total {
    margin: 0;
    padding: 0;
    border-top: 0;
  }
  .uf-stage {
    overflow: visible;
  }
  .uf-stage-h {
    align-items: flex-start;
    gap: 10px;
  }
  .uf-stage-h h2 {
    flex-wrap: wrap;
    row-gap: 4px;
  }
  .uf-diagram {
    flex: none;
    height: clamp(260px, 42vw, 420px);
  }
  .uf-pricing,
  .uf-handoff {
    border-left: 0;
    border-top: 1px solid var(--border);
    overflow: visible;
  }
  .uf-handoff-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .uf-kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .uf-row {
    grid-template-columns: 72px minmax(0, 1fr) 100px;
    grid-template-areas:
      "id customer total"
      "id cuts total";
    align-items: start;
  }
  .uf-row-id { grid-area: id; }
  .uf-row > div:nth-child(2) { grid-area: customer; min-width: 0; }
  .uf-row-cuts { grid-area: cuts; }
  .uf-row-total { grid-area: total; }
  .uf-row-arrow { display: none; }

  .st-body {
    display: flex;
    flex-direction: column;
    height: auto;
    overflow: visible;
  }
  .st-nav {
    position: sticky;
    top: 0;
    z-index: 15;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    border-right: 0;
    border-bottom: 1px solid var(--border);
    padding: 8px 10px;
  }
  .st-nav-h { display: none; }
  .st-nav-item {
    flex: 0 0 auto;
    white-space: nowrap;
  }
  .st-main {
    overflow: visible;
    padding: 20px 18px 80px;
  }
  .st-impact {
    border-left: 0;
    border-top: 1px solid var(--border);
    overflow: visible;
  }
}

@media (max-width: 680px) {
  .uf-top-l,
  .uf-top-r,
  .uf-db-actions {
    width: 100%;
    justify-content: flex-start;
  }
  .uf-db-action-user {
    flex: 1 1 100%;
  }
  .uf-crumbs,
  .uf-pipe,
  .uf-running .dot {
    display: none;
  }
  .uf-customer-input {
    flex-basis: 100%;
    min-width: 0;
  }
  .uf-running {
    padding: 0;
  }
  .uf-stage {
    padding: 12px;
  }
  .uf-form {
    display: grid;
    grid-template-columns: 1fr;
    align-items: stretch;
  }
  .uf-field,
  .uf-dim-pair,
  .uf-select {
    width: 100%;
  }
  .uf-field-source,
  .uf-field-thickness,
  .uf-field-finished,
  .uf-field-quantity {
    grid-column: 1;
  }
  .uf-dim-pair input {
    width: 100%;
    min-width: 0;
  }
  .uf-result {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
  .uf-rail-foot {
    grid-template-columns: 1fr;
  }
  .uf-price-total {
    font-size: 24px;
  }
  .uf-handoff-actions {
    grid-template-columns: 1fr;
  }
  .uf-db-body {
    padding: 14px 12px 24px;
  }
  .uf-kpis {
    grid-template-columns: 1fr;
  }
  .uf-row {
    grid-template-columns: 1fr;
    grid-template-areas:
      "id"
      "customer"
      "cuts"
      "total";
    gap: 8px;
    padding: 12px;
  }
  .uf-row-id,
  .uf-row-total {
    text-align: left;
  }
  .uf-row-cuts-thumbs {
    flex-wrap: wrap;
  }
  .st-main {
    padding: 16px 12px 80px;
  }
  .st-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .st-row-input .uf-input {
    width: min(160px, 100%);
  }
  .st-history-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .st-save-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
}