:root {
  --bg: #f3f0e8;
  --surface: #fffdfa;
  --ink: #1e2430;
  --muted: #657080;
  --line: #d7d0c2;
  --accent: #0f6b61;
  --accent-soft: #dff1ed;
  --danger: #9f3b2a;
  --shadow: 0 18px 40px rgba(28, 34, 44, 0.08);
  --radius: 18px;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #efe8dc 0%, #f8f5ee 100%);
  color: var(--ink);
}

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

code,
pre {
  font-family: "IBM Plex Mono", "SFMono-Regular", monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.landing-shell,
.login-page,
.main-content {
  min-height: 100vh;
}

.landing-shell {
  padding: 32px;
}

.hero-card,
.panel,
.login-card,
.metric-card,
.action-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  padding: 32px;
  margin-bottom: 24px;
}

.hero-card h1,
.login-card h1,
.topbar h1 {
  margin: 0 0 8px;
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: clamp(2rem, 4vw, 3rem);
}

.hero-meta ul {
  margin: 0;
  padding-left: 20px;
}

.landing-actions,
.action-grid,
.card-grid {
  display: grid;
  gap: 16px;
}

.landing-actions {
  grid-template-columns: repeat(auto-fit, minmax(180px, max-content));
  margin-top: 24px;
}

.admin-shell {
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
}

.sidebar {
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: rgba(255, 253, 250, 0.92);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 24px;
  font-size: 1.4rem;
}

.eyebrow {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: grid;
  gap: 8px;
}

.nav-link {
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--muted);
}

.nav-link.active,
.nav-link:hover {
  background: var(--accent-soft);
  color: var(--ink);
}

.main-content {
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.status-pill {
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin-bottom: 20px;
}

.metric-card {
  padding: 18px;
  display: grid;
  gap: 10px;
}

.metric-card span {
  color: var(--muted);
}

.metric-card strong {
  font-size: 2rem;
}

.panel {
  padding: 20px;
  margin-bottom: 20px;
}

.panel h2,
.action-card h3 {
  margin-top: 0;
}

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

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

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

th {
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.button,
button {
  appearance: none;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  padding: 12px 16px;
  font-weight: 700;
}

.button.secondary,
button.secondary {
  background: #e8e2d6;
  color: var(--ink);
}

.full-width {
  width: 100%;
}

.logout-form {
  margin-top: 24px;
}

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

label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  font: inherit;
}

textarea {
  min-height: 140px;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkbox input {
  width: auto;
}

.result-box,
pre {
  padding: 14px;
  border-radius: 12px;
  background: #f5f7fa;
  border: 1px solid var(--line);
}

.action-grid {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.action-card {
  padding: 18px;
}

.login-page {
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(420px, 100%);
  padding: 30px;
}

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

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  background: #fde7e2;
  color: var(--danger);
  margin: 16px 0;
}

@media (max-width: 900px) {
  .admin-shell,
  .hero-card {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .topbar {
    flex-direction: column;
  }
}