:root {
  --bg: #f3efe8;
  --bg-strong: #e5dccd;
  --card: rgba(255, 250, 243, 0.94);
  --text: #1e1d19;
  --muted: #5f5b52;
  --border: #c8b79e;
  --brand: #7b3f00;
  --brand-2: #214f4b;
  --warn: #8a2f2f;
  --shadow: 0 24px 60px rgba(46, 34, 18, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(33, 79, 75, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(123, 63, 0, 0.2), transparent 30%),
    linear-gradient(180deg, #f6f0e6 0%, #efe5d4 100%);
}

a {
  color: var(--brand-2);
}

main {
  max-width: 1300px;
  margin: 0 auto;
  padding: 32px 20px 56px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.topbar h1,
.login-card h1,
.detail-hero h1 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", serif;
  letter-spacing: 0.02em;
}

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

.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.card,
.login-card,
.detail-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.card,
.detail-card {
  padding: 22px;
}

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

.login-card {
  width: min(520px, 100%);
  padding: 28px;
}

label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 700;
  font-size: 0.95rem;
}

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

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--text);
}

textarea {
  min-height: 132px;
  resize: vertical;
}

.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.row > * {
  flex: 1 1 180px;
}

button,
.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 14px;
  padding: 12px 16px;
  font-weight: 700;
  cursor: pointer;
  background: var(--brand);
  color: #fffdf9;
  text-decoration: none;
}

button.secondary,
.button-link.secondary {
  background: var(--brand-2);
}

button.warn {
  background: var(--warn);
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  background: rgba(33, 79, 75, 0.11);
  color: var(--brand-2);
  font-size: 0.85rem;
  font-weight: 700;
}

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

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

th,
td {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(95, 91, 82, 0.18);
  text-align: left;
  vertical-align: top;
}

th {
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

pre {
  margin: 0;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.78);
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.docs pre,
.detail-pre {
  max-height: 320px;
}

.new-key {
  margin-bottom: 14px;
  padding: 14px;
  border-radius: 14px;
  background: rgba(123, 63, 0, 0.1);
  border: 1px dashed rgba(123, 63, 0, 0.38);
}

.error-box {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(138, 47, 47, 0.12);
  color: #692121;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.preview-card {
  min-height: 720px;
  display: flex;
  flex-direction: column;
}

.preview-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.preview-header h2 {
  margin: 0;
}

.preview-note {
  margin: 0 0 14px;
  color: var(--muted);
}

.preview-frame,
.preview-shell,
.pdf-preview-shell {
  width: 100%;
  flex: 1 1 auto;
  min-height: 540px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
}

.preview-frame {
  background: #fff;
}

.preview-shell {
  padding: 18px;
  overflow: auto;
}

.pdf-preview-shell {
  display: flex;
}

.preview-empty {
  display: grid;
  place-items: center;
  flex: 1 1 auto;
  min-height: 240px;
  padding: 24px;
  border: 1px dashed var(--border);
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.44);
  text-align: center;
}

.markdown-preview > :first-child {
  margin-top: 0;
}

.markdown-preview > :last-child {
  margin-bottom: 0;
}

.markdown-preview table {
  margin: 16px 0;
}

.markdown-preview img {
  max-width: 100%;
}

.embedded-assets {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.embedded-assets h3 {
  margin: 0 0 12px;
}

.asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.asset-card {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.5);
}

.asset-thumb-link {
  display: block;
}

.asset-thumb {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 140px;
  max-height: 220px;
  overflow: hidden;
  border-radius: 12px;
  object-fit: contain;
  background: rgba(15, 23, 42, 0.04);
}

.asset-thumb-file {
  padding: 16px;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  text-transform: uppercase;
}

.asset-link {
  overflow-wrap: anywhere;
  font-weight: 600;
}

.raw-markdown {
  margin-top: 14px;
}

.raw-markdown summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--brand-2);
  margin-bottom: 10px;
}

.detail-table td:first-child {
  width: 220px;
  color: var(--muted);
}

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

.inline-form {
  display: inline;
}

@media (max-width: 720px) {
  main {
    padding: 24px 14px 42px;
  }

  .topbar {
    flex-direction: column;
  }
}