:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #5c6875;
  --line: #d8dee6;
  --strong-line: #b8c2cc;
  --accent: #0f766e;
  --accent-dark: #0b5f59;
  --danger: #b42318;
  --warning: #9a6700;
  --ok: #1f7a3f;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
}

.page-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.page-header h1 {
  margin: 0;
  font-size: 2.4rem;
  line-height: 1.08;
  letter-spacing: 0;
}

.page-header p {
  max-width: 660px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(310px, 390px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.tool-panel,
.info-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.tool-panel {
  padding: 18px;
  position: sticky;
  top: 18px;
}

.drop-zone {
  position: relative;
  display: grid;
  place-items: center;
  gap: 6px;
  min-height: 170px;
  border: 2px dashed var(--strong-line);
  border-radius: 8px;
  background: #fbfcfd;
  cursor: pointer;
  text-align: center;
  transition:
    border-color 140ms ease,
    background 140ms ease;
}

.drop-zone input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.drop-zone.is-dragging,
.drop-zone:focus-within {
  border-color: var(--accent);
  background: #eefaf8;
}

.drop-title {
  display: block;
  font-weight: 700;
  font-size: 1.05rem;
}

.drop-copy {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.message {
  min-height: 46px;
  margin: 14px 0;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fbfcfd;
}

.message.is-error {
  color: var(--danger);
  border-color: #f3b7b2;
  background: #fff5f4;
}

.message.is-warning {
  color: var(--warning);
  border-color: #efd28a;
  background: #fff9e8;
}

.message.is-ok {
  color: var(--ok);
  border-color: #a6d8b8;
  background: #f0fbf4;
}

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

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 10px;
  font-weight: 700;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 96px;
  gap: 10px;
}

label span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 650;
}

input[type="date"],
input[type="time"],
input[type="number"] {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--strong-line);
  border-radius: 6px;
  padding: 8px 10px;
  background: #ffffff;
  color: var(--text);
}

input:disabled {
  color: #7b8794;
  background: #eef1f4;
  cursor: not-allowed;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 750;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background: var(--accent-dark);
}

button:disabled {
  background: #aeb8c2;
  cursor: not-allowed;
}

.info-panel {
  display: grid;
  grid-template-columns: minmax(240px, 0.9fr) minmax(340px, 1.1fr);
  gap: 0;
  overflow: hidden;
}

.preview-wrap {
  position: relative;
  min-height: 420px;
  background: #111827;
  display: grid;
  place-items: center;
}

.preview-wrap img {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.preview-wrap.has-image img {
  display: block;
}

.preview-wrap.has-image .preview-empty {
  display: none;
}

.preview-empty {
  color: #d1d5db;
  font-size: 0.95rem;
}

.details {
  background: var(--panel);
  border: 0;
  border-left: 1px solid var(--line);
  border-radius: 0;
  padding: 18px;
}

.details h2 {
  margin: 0 0 10px;
  font-size: 1rem;
  letter-spacing: 0;
}

.details h2 + .table-wrap {
  margin-top: 4px;
}

.file-facts {
  display: grid;
  gap: 8px;
  margin: 0 0 22px;
}

.file-facts div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 10px;
}

.file-facts dt {
  color: var(--muted);
  font-weight: 650;
}

.file-facts dd {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

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

tr:last-child td {
  border-bottom: 0;
}

th {
  color: var(--muted);
  background: #f7f9fb;
  font-weight: 750;
}

td:first-child {
  width: 170px;
  font-family:
    "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.tag-state {
  display: inline-block;
  margin-left: 6px;
  color: var(--muted);
  font-size: 0.82rem;
}

.invalid-value {
  color: var(--danger);
}

@media (max-width: 920px) {
  .workspace,
  .info-panel {
    grid-template-columns: 1fr;
  }

  .tool-panel {
    position: static;
  }

  .details {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .preview-wrap {
    min-height: 320px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    width: min(100% - 20px, 1180px);
    padding: 18px 0;
  }

  .page-header h1 {
    font-size: 1.85rem;
  }

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

  .preview-wrap {
    min-height: 250px;
  }
}