* {
  box-sizing: border-box;
}

:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --ink: #111827;
  --muted: #5b677a;
  --line: #d8dee8;
  --line-strong: #b9c3d2;
  --accent: #0f766e;
  --accent-dark: #0b5f59;
  --navy: #102033;
  --amber: #9a6700;
  --amber-bg: #fff7db;
  --danger: #b42318;
  --danger-bg: #fff1f0;
  --ok: #047857;
  --ok-bg: #e9f8f2;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 15px;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  border: 0;
  border-radius: 7px;
  background: var(--accent);
  color: #fff;
  padding: 11px 16px;
  font-weight: 700;
  cursor: pointer;
}

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

button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

button.secondary {
  background: #34465d;
}

button.secondary:hover {
  background: #243348;
}

button.danger {
  background: #b42318;
}

button.danger:hover {
  background: #8f1d14;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  padding: 10px 11px;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

label {
  display: block;
  margin: 0 0 6px;
  color: #233044;
  font-weight: 700;
}

small {
  color: var(--muted);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 28px;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: 0;
}

.brand p {
  margin: 0;
  color: var(--muted);
}

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

.nav a {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px 12px;
  background: #f8fafc;
  color: #233044;
  font-weight: 700;
}

.nav a.active {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: #edf7f5;
}

.shell {
  width: min(1480px, calc(100% - 40px));
  margin: 24px auto 40px;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.two {
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr);
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

.panel h3 {
  margin: 18px 0 10px;
  font-size: 15px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px;
}

.field.full {
  grid-column: 1 / -1;
}

.inline-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 8px;
}

.inline-fields span {
  color: #233044;
  font-weight: 700;
  white-space: nowrap;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.status {
  margin-top: 14px;
  border-radius: 7px;
  border: 1px solid var(--line);
  padding: 11px 12px;
  background: #f8fafc;
  color: #233044;
  min-height: 44px;
}

.status.ok {
  border-color: #9bd7c4;
  background: var(--ok-bg);
  color: var(--ok);
}

.status.bad {
  border-color: #f4aaa4;
  background: var(--danger-bg);
  color: var(--danger);
}

.status.warn {
  border-color: #f1d47c;
  background: var(--amber-bg);
  color: var(--amber);
}

.result {
  margin: 16px 0 0;
  min-height: 180px;
  max-height: 460px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  border-radius: 8px;
  background: var(--navy);
  color: #dbe7f5;
  padding: 14px;
}

.summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
  padding: 14px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  margin-top: 5px;
  font-size: 24px;
  color: var(--accent-dark);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
  background: #fff;
}

th,
td {
  border-bottom: 1px solid #e8edf3;
  padding: 10px 9px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f6f8fb;
  color: #314158;
  font-size: 13px;
}

tbody tr {
  cursor: pointer;
}

tbody tr:hover {
  background: #f8fbfc;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 8px;
  background: #e7f3f1;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 800;
}

.preview-box {
  display: none;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #f8fafc;
}

.preview-box img {
  display: block;
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  background: #eef2f6;
}

.copy-row {
  display: flex;
  gap: 10px;
  align-items: end;
}

.copy-row .field {
  flex: 1;
}

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

@media (max-width: 1080px) {
  .grid.two,
  .grid.three,
  .summary,
  .split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px;
  }

  .shell {
    width: min(100% - 24px, 1480px);
    margin-top: 14px;
  }

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