:root {
  --bg: #0d0d0d;
  --panel: #151515;
  --line: #2a2a2a;
  --text: #fff;
  --muted: #a3a3a3;
  --red: #e53935;
  --green: #22c55e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(229, 57, 53, 0.14), transparent 34%),
    radial-gradient(circle at 82% 18%, rgba(255, 255, 255, 0.06), transparent 28%),
    var(--bg);
  font-family: "Segoe UI", Arial, sans-serif;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card,
.admin-shell {
  width: min(100%, 520px);
  border: 1px solid var(--line);
  background: rgba(21, 21, 21, 0.94);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

.auth-card {
  padding: 34px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 28px;
}

.brand img {
  width: 118px;
  height: 58px;
  object-fit: contain;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 30px;
  line-height: 1.12;
}

h2 {
  font-size: 20px;
}

.form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
}

input,
select,
button {
  height: 42px;
  border: 1px solid #333;
  background: #101010;
  color: var(--text);
  font: inherit;
}

input,
select {
  padding: 0 12px;
}

button {
  cursor: pointer;
  border-color: var(--red);
  background: var(--red);
  font-weight: 800;
}

button.secondary {
  border-color: #333;
  background: #1d1d1d;
}

button.danger {
  border-color: #7f1d1d;
  background: #7f1d1d;
}

.message {
  min-height: 22px;
  color: var(--muted);
  font-size: 13px;
}

.message.error {
  color: #ff8a80;
}

.message.ok {
  color: var(--green);
}

.admin-page {
  padding: 24px;
}

.admin-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}

.admin-header .brand {
  margin: 0;
}

.admin-actions {
  display: flex;
  gap: 10px;
}

.admin-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 18px;
  padding: 24px;
}

.data-grid {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 18px;
  padding: 24px;
}

.panel {
  border: 1px solid var(--line);
  background: #111;
  padding: 18px;
}

.panel h2 {
  margin-bottom: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 11px 10px;
  border-bottom: 1px solid #242424;
  text-align: left;
  font-size: 13px;
}

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

.row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.row-actions button {
  height: 32px;
  padding: 0 10px;
  font-size: 12px;
}

.preview-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 18px 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.preview-summary strong {
  width: 100%;
  color: var(--text);
}

.data-preview-wrap {
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--line);
}

.data-preview-wrap table {
  min-width: 880px;
}

.invalid-box {
  display: grid;
  gap: 6px;
  margin: 12px 0;
  color: #ffb4ac;
  font-size: 12px;
}

.invalid-box strong {
  color: #ff8a80;
}

td.num {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 900px) {
  .admin-grid,
  .data-grid {
    grid-template-columns: 1fr;
    padding: 14px;
  }

  .admin-header {
    align-items: flex-start;
    flex-direction: column;
  }
}