:root{
  --bg: #EEF0F2;
  --panel: #FFFFFF;
  --ink: #1C2126;
  --muted: #667085;
  --line: #DBDFE3;
  --accent: #2F6F8F;
  --accent-ink: #FFFFFF;
  --warn: #B8622B;
  --warn-bg: #FBEDE3;
  --good: #3F7D58;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(28,33,38,.06), 0 8px 24px rgba(28,33,38,.06);
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; }
body{
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

button, input, select, textarea{ font-family: inherit; }

/* ---------- Nameplate header ---------- */
.nameplate{
  display:flex;
  align-items:center;
  flex-wrap: wrap;
  gap:12px 16px;
  padding: 18px 24px;
  background: var(--ink);
  color: #F3F4F5;
  border-bottom: 3px solid var(--accent);
}
.nameplate__mark{ color: #F3F4F5; flex: 0 0 auto; display:flex; }
.nameplate__text{ flex: 1 1 auto; min-width: 0; }
.nameplate__text h1{
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .02em;
  margin: 0;
  text-transform: uppercase;
}
.nameplate__text p{
  margin: 2px 0 0;
  font-size: 12.5px;
  color: #AEB4BB;
  letter-spacing: .01em;
}
#btnLogout{
  color: #D7DADD;
  border-color: #454C54;
  background: transparent;
}
#btnLogout:hover{ color: #fff; border-color: var(--accent); }

/* ---------- Layout ---------- */
.wrap{
  max-width: 1180px;
  margin: 0 auto;
  padding: 22px 20px 60px;
}

/* ---------- Stats ---------- */
.stats{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.stat{
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
}
.stat--warn{ border-top-color: var(--warn); }
.stat__label{
  display:block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 6px;
}
.stat__value{
  display:block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
}

/* ---------- Toolbar ---------- */
.toolbar{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 14px;
}
.input{
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--ink);
}
.input:focus, textarea:focus, button:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.input--search{ flex: 1 1 220px; min-width: 180px; }
.threshold{
  display:flex;
  align-items:center;
  gap:8px;
  font-size: 12.5px;
  color: var(--muted);
  white-space: nowrap;
}
.input--num{ width: 78px; font-family: var(--font-mono); }

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:hover{ border-color: var(--accent); }
.btn:active{ transform: translateY(1px); }
.btn--accent{
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.btn--accent:hover{ background: #285e79; }
.btn--ghost{ background: transparent; }
.btn--danger{ color: #a13a2c; border-color: #e2b7a8; }

/* ---------- Table ---------- */
.table-wrap{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: auto;
}
table.ledger{
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 960px;
}
.ledger thead th{
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  white-space: nowrap;
}
.ledger thead th:hover{ color: var(--accent); }
.ledger thead th.num{ text-align: right; }
.ledger td{
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.ledger tbody tr:last-child td{ border-bottom: none; }
.ledger tbody tr{ transition: background .1s ease; }
.ledger tbody tr:hover{ background: #F7F8F9; }
.ledger tbody tr.low-stock{ box-shadow: inset 3px 0 0 var(--warn); }
.ledger td.num, .ledger td.mono{ font-family: var(--font-mono); }
.ledger td.num{ text-align: right; }
.ledger .empty{ text-align:center; color: var(--muted); padding: 34px 0; }

.swatch-cell{ width: 34px; }
.spool-chip{
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 3px solid var(--panel);
  outline: 2px solid var(--line);
  display: inline-block;
}

.badge{
  display:inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--warn-bg);
  color: var(--warn);
  margin-left: 8px;
}

.material-tag{
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.row-actions{ display:flex; gap:6px; justify-content:flex-end; }
.icon-btn{
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 6px;
  width: 30px; height: 30px;
  cursor: pointer;
  color: var(--muted);
  display:inline-flex; align-items:center; justify-content:center;
}
.icon-btn:hover{ color: var(--accent); border-color: var(--accent); }
.actions-col{ width: 76px; }

/* ---------- Modal ---------- */
.modal-backdrop{
  position: fixed; inset: 0;
  background: rgba(28,33,38,.45);
  display: none;
  align-items: center; justify-content: center;
  padding: 20px;
  z-index: 50;
}
.modal-backdrop.open{ display: flex; }
.modal{
  background: var(--panel);
  width: 100%;
  max-width: 560px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.25);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}
.modal__edge{
  height: 6px;
  background: var(--accent);
  flex: 0 0 auto;
}
.modal__body{
  padding: 20px 22px 18px;
  overflow-y: auto;
}
.modal__head{
  display:flex;
  align-items:center;
  gap: 12px;
  margin-bottom: 14px;
}
.spool-preview{
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 4px solid #fff;
  outline: 2px solid var(--line);
  flex: 0 0 auto;
}
.modal__head h2{
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0;
  flex: 1 1 auto;
}
.modal__close{
  border: none; background: transparent;
  font-size: 22px; line-height: 1; cursor: pointer;
  color: var(--muted); padding: 4px 6px;
}
.modal__close:hover{ color: var(--ink); }

.field-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
}
.field{ display:flex; flex-direction: column; gap: 5px; font-size: 12.5px; color: var(--muted); }
.field--wide{ grid-column: 1 / -1; }
.field input, .field textarea{
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--ink);
  background: var(--panel);
}
.field--color input[type=color]{ padding: 2px; height: 38px; cursor: pointer; }
.price-row{ display:flex; gap:6px; }
.price-row input[type=number]{ flex: 1 1 auto; }
.currency-input{ width: 56px; text-align:center; }
textarea{ resize: vertical; font-family: inherit; }

.modal__actions{
  display:flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}
.spacer{ flex: 1 1 auto; }

/* ---------- Toast ---------- */
.toast{
  position: fixed;
  bottom: 22px; left: 50%;
  transform: translate(-50%, 20px);
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 100;
}
.toast.show{ opacity: 1; transform: translate(-50%, 0); }

/* ---------- Responsive ---------- */
@media (max-width: 720px){
  .stats{ grid-template-columns: repeat(2, 1fr); }
  .nameplate__text h1{ font-size: 16px; }
  .field-grid{ grid-template-columns: 1fr; }
  .nameplate{ padding: 14px 16px; }
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; }
}

/* ---------- Login ---------- */
.login-body{
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  padding: 20px;
}
.login-card{
  width: 100%;
  max-width: 340px;
  background: var(--panel);
  border-radius: 14px;
  border-top: 4px solid var(--accent);
  padding: 28px 26px 24px;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-card__mark{ color: var(--ink); }
.login-card h1{
  font-family: var(--font-display);
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: .02em;
  margin: 4px 0 0;
}
.login-card__subtitle{
  margin: -8px 0 4px;
  font-size: 13px;
  color: var(--muted);
}
.login-error{
  background: var(--warn-bg);
  color: var(--warn);
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 8px;
}
.login-card .field input{
  width: 100%;
}
.login-card__submit{ margin-top: 6px; width: 100%; }