:root {
  --bg: #f2f5fa;
  --surface: #ffffff;
  --surface-muted: #f7f9fd;
  --border: #dde3ee;
  --border-strong: #c6cfde;
  --text: #101828;
  --text-muted: #55627a;
  --text-soft: #7c8aa5;
  --primary: #1f57d0;
  --primary-hover: #1a49b0;
  --primary-soft: #e6efff;
  --danger: #c9302c;
  --danger-soft: #fde8e7;
  --success: #1a7f37;
  --success-soft: #e4f5ea;
  --warning: #b76b00;
  --warning-soft: #fff2dc;
  --info: #0b6a94;
  --info-soft: #e0f2fc;
  --shadow: 0 6px 24px rgba(20, 40, 80, 0.08);
  --radius: 10px;
  --radius-sm: 6px;
  font-family: "Inter", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
  min-height: 100vh;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

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

a {
  color: var(--primary);
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------------- Layout ---------------- */
.top-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 1px 0 rgba(20, 40, 80, 0.04);
}

.top-bar .brand {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.top-bar .brand-mark {
  width: 30px;
  height: 30px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-weight: 700;
}

.top-bar nav {
  display: flex;
  gap: 4px;
  margin-left: 16px;
  flex-wrap: wrap;
}

.top-bar nav button {
  border: none;
  background: transparent;
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--text-muted);
  font-weight: 500;
}

.top-bar nav button:hover {
  background: var(--surface-muted);
  color: var(--text);
}

.top-bar nav button.active {
  background: var(--primary-soft);
  color: var(--primary);
}

.top-bar .user-block {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}

.top-bar .user-block .user-name {
  font-weight: 600;
}

.top-bar .user-block .user-role {
  color: var(--text-muted);
  text-transform: lowercase;
}

.top-bar .btn-logout {
  border: 1px solid var(--border);
  background: transparent;
  padding: 6px 12px;
  border-radius: 8px;
  color: var(--text-muted);
}

.top-bar .btn-logout:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.main {
  padding: 24px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  flex: 1;
}

/* ---------------- Login ---------------- */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, #eef2f9 0%, #e2eaf6 100%);
  padding: 24px;
}

.login-card {
  background: var(--surface);
  border-radius: 14px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-card h1 {
  margin: 0 0 4px 0;
  font-size: 18px;
}

.login-card .sub {
  color: var(--text-muted);
  margin: 0 0 24px 0;
  font-size: 13px;
}

.login-card .field {
  margin-bottom: 16px;
}

.login-card label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.login-card select,
.login-card input {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 10px 12px;
  background: var(--surface);
  color: var(--text);
}

.login-card select:focus,
.login-card input:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  border-color: var(--primary);
}

.login-card .pin-input {
  letter-spacing: 6px;
  font-size: 18px;
  text-align: center;
}

.btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 8px;
  font-weight: 500;
  transition: background 0.1s ease, border-color 0.1s ease;
}

.btn:hover {
  background: var(--surface-muted);
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.btn.primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn.danger {
  border-color: var(--danger);
  color: var(--danger);
}

.btn.danger:hover {
  background: var(--danger-soft);
}

.btn.success {
  border-color: var(--success);
  color: var(--success);
}

.btn.success:hover {
  background: var(--success-soft);
}

.btn.warning {
  border-color: var(--warning);
  color: var(--warning);
}

.btn.warning:hover {
  background: var(--warning-soft);
}

.btn.ghost {
  border: none;
  background: transparent;
  color: var(--primary);
  padding: 6px 8px;
}

.btn.ghost:hover {
  background: var(--primary-soft);
}

.btn:disabled,
.btn:disabled:hover {
  opacity: 0.5;
  cursor: not-allowed;
  background: var(--surface);
}

.btn.small {
  padding: 5px 10px;
  font-size: 12px;
  border-radius: 6px;
}

.btn.full {
  width: 100%;
  padding: 12px;
  font-weight: 600;
}

.error-line {
  color: var(--danger);
  background: var(--danger-soft);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 12px;
  font-size: 13px;
}

/* ---------------- Page header ---------------- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.page-header h2 {
  margin: 0;
  font-size: 20px;
}

.page-header .actions {
  display: flex;
  gap: 8px;
}

/* ---------------- Tabs ---------------- */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  overflow-x: auto;
}

.tabs button {
  border: none;
  background: transparent;
  padding: 10px 14px;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
}

.tabs button:hover {
  color: var(--text);
}

.tabs button.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tabs .badge {
  margin-left: 6px;
  background: var(--surface-muted);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 1px 8px;
  font-size: 11px;
  font-weight: 600;
}

.tabs button.active .badge {
  background: var(--primary-soft);
  color: var(--primary);
}

/* ---------------- Filters ---------------- */
.filters {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.filters select,
.filters input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  background: var(--surface);
  min-width: 160px;
}

.filters select:focus,
.filters input:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  border-color: var(--primary);
}

/* ---------------- Table / list ---------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.data-table th,
.data-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table th {
  background: var(--surface-muted);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: sticky;
  top: 0;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr.clickable {
  cursor: pointer;
}

.data-table tr.clickable:hover td {
  background: var(--surface-muted);
}

.request-number {
  font-family: "SF Mono", ui-monospace, "Cascadia Mono", Menlo, monospace;
  font-weight: 600;
  color: var(--text);
  font-size: 13px;
}

.priority-cell {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.priority-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-soft);
}

.priority-dot.urgent {
  background: #d64545;
}
.priority-dot.high {
  background: #e58a1a;
}
.priority-dot.normal {
  background: #4b9d63;
}
.priority-dot.low {
  background: #8a94a8;
}

.empty {
  padding: 40px 24px;
  text-align: center;
  color: var(--text-muted);
}

.loading {
  padding: 40px;
  text-align: center;
  color: var(--text-muted);
}

/* ---------------- Status pills ---------------- */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid transparent;
  white-space: nowrap;
}

.status-pill.draft {
  background: var(--surface-muted);
  color: var(--text-muted);
  border-color: var(--border);
}
.status-pill.pending_approval {
  background: var(--info-soft);
  color: var(--info);
  border-color: #cbe6f5;
}
.status-pill.returned {
  background: var(--warning-soft);
  color: var(--warning);
  border-color: #f2dcb5;
}
.status-pill.rejected {
  background: var(--danger-soft);
  color: var(--danger);
  border-color: #f5c8c6;
}
.status-pill.approved {
  background: var(--success-soft);
  color: var(--success);
  border-color: #c5e6cf;
}
.status-pill.mto_in_progress,
.status-pill.ordered,
.status-pill.partially_received {
  background: #eef1fb;
  color: #3448a8;
  border-color: #d4dbef;
}
.status-pill.received,
.status-pill.closed {
  background: var(--success-soft);
  color: var(--success);
  border-color: #c5e6cf;
}

/* ---------------- Request form ---------------- */
.form-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.form-section + .form-section {
  margin-top: 16px;
}

.form-section h3 {
  margin: 0 0 12px 0;
  font-size: 15px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 12px;
}

.form-row.single {
  grid-template-columns: 1fr;
}

.form-row.three {
  grid-template-columns: 2fr 1fr 1fr;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.form-field input,
.form-field select,
.form-field textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--surface);
  color: var(--text);
}

.form-field textarea {
  min-height: 80px;
  resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  border-color: var(--primary);
}

/* Autocomplete */
.autocomplete-wrap {
  position: relative;
}

.autocomplete-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  margin-top: 4px;
  max-height: 220px;
  overflow-y: auto;
  z-index: 40;
  box-shadow: var(--shadow);
}

.autocomplete-list .item {
  padding: 8px 10px;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.autocomplete-list .item:hover,
.autocomplete-list .item.active {
  background: var(--primary-soft);
}

.autocomplete-list .item .unit {
  color: var(--text-muted);
  font-size: 12px;
}

/* Items table in form */
.items-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 8px;
}

.items-table th,
.items-table td {
  padding: 8px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  vertical-align: top;
}

.items-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-align: left;
}

.items-table input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  background: var(--surface);
}

.items-table input:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  border-color: var(--primary);
}

.items-table .col-index {
  width: 32px;
  color: var(--text-muted);
  text-align: center;
}

.items-table .col-remove {
  width: 32px;
  text-align: center;
}

.items-table .col-remove button {
  border: none;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
}

.items-table .col-remove button:hover {
  background: var(--danger-soft);
}

.approval-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.approval-step-row {
  display: grid;
  grid-template-columns: 24px 2fr 1fr 32px;
  gap: 10px;
  align-items: center;
}

.approval-step-row .step-order {
  color: var(--text-muted);
  text-align: center;
  font-weight: 600;
}

.approval-step-row select,
.approval-step-row input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 10px;
  background: var(--surface);
}

.approval-step-row button.remove {
  border: none;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
}

.approval-step-row button.remove:hover {
  background: var(--danger-soft);
}

.form-footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 16px;
}

/* ---------------- Request card view ---------------- */
.card-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.info-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.info-block + .info-block {
  margin-top: 16px;
}

.info-block h3 {
  margin: 0 0 12px 0;
  font-size: 15px;
}

.info-block .kv {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 8px 16px;
  font-size: 13px;
}

.info-block .kv dt {
  color: var(--text-muted);
}

.info-block .kv dd {
  margin: 0;
  color: var(--text);
}

.approval-list,
.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.approval-item {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: center;
  background: var(--surface);
}

.approval-item.pending {
  border-color: #b7d3ef;
  background: var(--info-soft);
}

.approval-item.approved {
  border-color: #b8dcc4;
  background: var(--success-soft);
}

.approval-item.returned {
  border-color: #f2dcb5;
  background: var(--warning-soft);
}

.approval-item.rejected {
  border-color: #f5c8c6;
  background: var(--danger-soft);
}

.approval-item .index {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  font-weight: 600;
  color: var(--text-muted);
}

.approval-item.approved .index {
  border-color: var(--success);
  color: var(--success);
}

.approval-item.pending .index {
  border-color: var(--info);
  color: var(--info);
}

.approval-item .name {
  font-weight: 500;
}

.approval-item .role-hint {
  color: var(--text-muted);
  font-size: 12px;
}

.approval-item .status-inline {
  font-size: 12px;
  color: var(--text-muted);
}

.approval-item .comment {
  grid-column: 2 / span 2;
  color: var(--text-muted);
  font-size: 12px;
  font-style: italic;
}

.history-item {
  border-left: 2px solid var(--border);
  padding: 6px 12px;
  font-size: 13px;
}

.history-item .head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-muted);
  font-size: 12px;
}

.history-item .body {
  color: var(--text);
}

.history-item .comment {
  color: var(--text-muted);
  font-style: italic;
  margin-top: 2px;
}

/* ---------------- Modal / dialog ---------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 34, 60, 0.35);
  display: grid;
  place-items: center;
  z-index: 100;
  padding: 16px;
}

.modal {
  background: var(--surface);
  border-radius: 12px;
  padding: 20px;
  max-width: 460px;
  width: 100%;
  box-shadow: var(--shadow);
}

.modal h3 {
  margin: 0 0 12px 0;
  font-size: 16px;
}

.modal .buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

/* ---------------- Toasts ---------------- */
.toasts {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
  max-width: 360px;
}

.toast {
  background: #101828;
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  box-shadow: var(--shadow);
  animation: toast-in 0.15s ease;
}

.toast.error {
  background: #b1302c;
}
.toast.success {
  background: #167a35;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------------- Utility ---------------- */
.spacer {
  flex: 1;
}

.muted {
  color: var(--text-muted);
}

.small {
  font-size: 12px;
}

.mono {
  font-family: "SF Mono", ui-monospace, "Cascadia Mono", Menlo, monospace;
}

.hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}