:root {
  color-scheme: light;
  --background: #f5f7fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #667085;
  --line: #d8dee9;
  --accent: #176b87;
  --accent-strong: #0f4c5c;
  --warning: #a15c00;
  --warning-bg: #fff4db;
  --ok: #167a4a;
  --ok-bg: #e8f7ef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px clamp(20px, 4vw, 56px) 18px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
}

h1 {
  font-size: clamp(30px, 4vw, 44px);
}

h2 {
  font-size: 18px;
}

.status-pill,
.stock-status {
  border-radius: 999px;
  display: inline-flex;
  font-size: 13px;
  font-weight: 700;
  padding: 8px 12px;
  white-space: nowrap;
}

.status-pill {
  background: #e9eef6;
  color: #344054;
}

.layout {
  display: grid;
  gap: 20px;
  padding: 0 clamp(20px, 4vw, 56px) 40px;
}

.summary-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.summary-grid article,
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.summary-grid article {
  padding: 18px;
}

.summary-grid span {
  color: var(--muted);
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
}

.summary-grid strong {
  font-size: 30px;
}

.workspace {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
}

.panel {
  padding: 20px;
}

form {
  align-content: start;
  display: grid;
  gap: 14px;
}

label {
  color: var(--muted);
  display: grid;
  font-size: 13px;
  font-weight: 700;
  gap: 6px;
}

input {
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  min-height: 42px;
  padding: 9px 11px;
  width: 100%;
}

input:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(23, 107, 135, 0.14);
}

.field-row {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
}

button {
  background: var(--accent);
  border: 0;
  border-radius: 6px;
  color: white;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  min-height: 44px;
  padding: 10px 14px;
}

button:hover {
  background: var(--accent-strong);
}

.form-message {
  color: var(--muted);
  margin: 0;
  min-height: 20px;
}

.table-panel {
  min-width: 0;
}

.table-header {
  align-items: center;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 14px;
}

.table-header input {
  max-width: 260px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  min-width: 680px;
  width: 100%;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 12px 10px;
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.stock-status.ok {
  background: var(--ok-bg);
  color: var(--ok);
}

.stock-status.low {
  background: var(--warning-bg);
  color: var(--warning);
}

@media (max-width: 860px) {
  .app-header,
  .table-header {
    align-items: stretch;
    flex-direction: column;
  }

  .summary-grid,
  .workspace {
    grid-template-columns: 1fr;
  }

  .table-header input {
    max-width: none;
  }
}