:root {
  --bg: #0f1115;
  --surface: #171a21;
  --surface-soft: #1d212b;
  --surface-alt: #232937;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f4f7fb;
  --muted: #a3a9b8;
  --primary: #b4121b;
  --primary-soft: rgba(180, 18, 27, 0.18);
  --secondary: #ffffff;
  --success: #0f8c4a;
  --warning: #9d6f00;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.24);
  --radius: 20px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  font-family: 'Inter', system-ui, sans-serif;
  background: linear-gradient(180deg, #111318 0%, #0b0d12 100%);
  color: var(--text);
}
body { min-height: 100vh; }
button, input, select, textarea {
  font: inherit;
}
button { cursor: pointer; }
.hidden { display: none !important; }
.screen { min-height: 100vh; }
.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .72rem;
  color: #f59da2;
}
.muted { color: var(--muted); }
.small { font-size: .86rem; }

.auth-screen {
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top right, rgba(180, 18, 27, 0.22), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255, 255, 255, 0.07), transparent 24%),
    linear-gradient(180deg, #111318 0%, #0b0d12 100%);
}
.auth-card {
  width: min(520px, 100%);
  background: rgba(23, 26, 33, 0.92);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: 30px;
  box-shadow: var(--shadow);
}
.auth-card h1 { margin: 0; font-size: 2rem; }
.auth-copy { margin: 20px 0 24px; }
.brand-row {
  display: flex;
  gap: 14px;
  align-items: center;
}
.brand-row--compact h2 { margin: 0; font-size: 1.2rem; }
.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, #d51a25, #7c0c13);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 12px 30px rgba(180, 18, 27, 0.25);
}
.form-grid {
  display: grid;
  gap: 14px;
}
.form-grid.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
label {
  display: grid;
  gap: 8px;
  font-size: .95rem;
  color: var(--muted);
}
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  outline: none;
}
textarea { resize: vertical; min-height: 72px; }
input:focus, select:focus, textarea:focus {
  border-color: rgba(213, 26, 37, .8);
  box-shadow: 0 0 0 4px rgba(213, 26, 37, .14);
}
.btn {
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 700;
  transition: transform .12s ease, opacity .12s ease, background .12s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(180deg, #d61b25, #a50f18); color: #fff; }
.btn-secondary { background: rgba(255,255,255,.08); color: #fff; border: 1px solid var(--line); }
.btn-dark { background: #fff; color: #111318; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid var(--line); }
.btn-full { width: 100%; }
.demo-box {
  margin-top: 18px;
  padding: 16px;
  border-radius: 16px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  font-size: .92rem;
}
.demo-box p { margin: 6px 0; }

.app-shell {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
}
.sidebar {
  border-right: 1px solid var(--line);
  background: rgba(15, 17, 21, 0.88);
  backdrop-filter: blur(18px);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 22px;
  position: sticky;
  top: 0;
}
.sidebar-top { margin-bottom: 24px; }
.nav-list {
  display: grid;
  gap: 8px;
}
.nav-item {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  padding: 13px 14px;
  border-radius: 14px;
  text-align: left;
  font-weight: 600;
}
.nav-item:hover, .nav-item.active {
  background: rgba(255,255,255,.05);
  border-color: var(--line);
}
.sidebar-footer {
  margin-top: auto;
  display: grid;
  gap: 14px;
}
.user-chip {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
}
.main-content {
  padding: 24px;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 22px;
}
.topbar h1 { margin: 0; font-size: 2rem; }
.status-pill {
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(15, 140, 74, 0.18);
  color: #9df3bf;
  border: 1px solid rgba(157, 243, 191, 0.16);
  font-size: .9rem;
}
.view { display: none; }
.view.active { display: block; }
.card-grid {
  display: grid;
  gap: 18px;
}
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: rgba(23, 26, 33, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.metric-card h3 {
  font-size: 2rem;
  margin: 10px 0 0;
}
.dashboard-layout {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 18px;
}
.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}
.card-head h3 { margin: 0; }
.stack-list {
  display: grid;
  gap: 12px;
}
.stack-list.compact { max-height: 460px; overflow: auto; padding-right: 4px; }
.list-item {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
}
.list-item h4 { margin: 0 0 6px; }
.quick-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.info-callout {
  padding: 14px;
  border-radius: 16px;
  background: var(--primary-soft);
  border: 1px solid rgba(255,255,255,.08);
}
.toolbar {
  display: grid;
  gap: 16px;
  margin-bottom: 16px;
}
.toolbar-grid {
  display: grid;
  grid-template-columns: 180px minmax(220px, 260px) minmax(240px, 1fr);
  gap: 12px;
}
.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.summary-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.summary-banner h3 { margin: 0; }
.summary-inline { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.badge {
  padding: 8px 12px;
  border-radius: 999px;
  font-size: .86rem;
  font-weight: 700;
}
.badge-draft { background: rgba(157,111,0,.18); color: #f6d48f; border: 1px solid rgba(246,212,143,.14); }
.badge-submitted { background: rgba(15,140,74,.18); color: #9df3bf; border: 1px solid rgba(157,243,191,.14); }
.inventory-sections {
  display: grid;
  gap: 16px;
}
.inventory-category {
  overflow: hidden;
}
.inventory-category summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}
.inventory-category summary::-webkit-details-marker { display: none; }
.category-title { display: flex; flex-direction: column; gap: 6px; }
.category-table {
  margin-top: 18px;
  overflow-x: auto;
}
.table-wrap {
  overflow-x: auto;
}
.table-wrap table, .category-table table {
  width: 100%;
  border-collapse: collapse;
  min-width: 780px;
}
thead th {
  text-align: left;
  font-size: .85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 14px 12px;
  border-bottom: 1px solid var(--line);
}
tbody td {
  padding: 12px;
  border-bottom: 1px solid rgba(255,255,255,.05);
  vertical-align: top;
}
.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.admin-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.inline-form {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}
.inline-form input { flex: 1; }
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  display: grid;
  gap: 10px;
  z-index: 50;
}
.toast {
  padding: 14px 16px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  font-size: .95rem;
  border: 1px solid var(--line);
  background: rgba(23, 26, 33, 0.96);
}
.toast.success { border-color: rgba(157,243,191,.14); }
.toast.error { border-color: rgba(255,140,140,.16); }
.helper-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}
.count-chip {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: .83rem;
}
.actions-inline {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

@media (max-width: 1180px) {
  .card-grid.four, .card-grid.two, .dashboard-layout, .admin-layout, .toolbar-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 920px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: static;
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .main-content { padding: 18px; }
  .card-grid.four, .card-grid.two, .dashboard-layout, .admin-layout, .form-grid.two-columns, .toolbar-grid {
    grid-template-columns: 1fr;
  }
  .topbar, .summary-banner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 620px) {
  .auth-card, .card { padding: 18px; }
  .main-content { padding: 14px; }
  .topbar h1 { font-size: 1.6rem; }
  .inline-form { flex-direction: column; }
  .toolbar-actions, .quick-actions, .table-actions, .actions-inline { flex-direction: column; }
  .btn, .toolbar-actions .btn { width: 100%; }
}