:root {
  color-scheme: light;
  --bg: #f4f1ea;
  --panel: #fffdfa;
  --panel-strong: #ffffff;
  --line: rgba(26, 44, 61, 0.12);
  --text: #1a2c3d;
  --muted: #66798a;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --accent-soft: rgba(15, 118, 110, 0.1);
  --warning: #b45309;
  --danger: #c2410c;
  --radius: 20px;
  --shadow: 0 18px 40px rgba(17, 24, 39, 0.08);
  --shadow-soft: 0 10px 20px rgba(17, 24, 39, 0.05);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.08), transparent 30%),
    linear-gradient(180deg, #f7f4ee 0%, #f1ede4 100%);
  color: var(--text);
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

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

.app-shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(18px);
  border-right: 1px solid var(--line);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
}

.brand-block,
.sidebar-footer,
.panel,
.stat-card,
.table-shell,
.status-bar,
.hero-card,
.placeholder-card {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.brand-block {
  padding: 20px;
}

.brand-block h1,
.topbar h2,
.section-title,
.page-grid h3,
.form-card h3 {
  margin: 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
}

.brand-copy,
.muted,
.session-badge,
.table-meta,
.inline-note,
.status-bar {
  color: var(--muted);
}

.nav-root {
  display: grid;
  gap: 18px;
}

.nav-group {
  display: grid;
  gap: 10px;
}

.nav-group-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 0 12px;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 12px 14px;
  border-radius: 16px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(17, 24, 39, 0.05);
  outline: none;
  transform: translateX(2px);
}

.nav-link.active {
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 700;
}

.nav-pill {
  font-size: 0.72rem;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.08);
  color: var(--muted);
}

.sidebar-footer {
  padding: 16px;
  margin-top: auto;
}

.session-badge {
  margin: 10px 0 0;
  font-size: 0.9rem;
}

.main-panel {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.content-root {
  display: grid;
  gap: 18px;
}

.hero-card,
.placeholder-card,
.panel,
.form-card,
.table-shell,
.stat-card {
  padding: 20px;
}

.hero-card {
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.1), rgba(245, 158, 11, 0.12));
}

.page-grid {
  display: grid;
  gap: 18px;
}

.page-grid.columns-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.filter-form,
.stack-form,
.inline-form {
  display: grid;
  gap: 12px;
}

.filter-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  font-size: 0.88rem;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  background: var(--panel-strong);
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

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

.primary-button,
.secondary-button,
.ghost-button,
.danger-button,
.link-button {
  border-radius: 14px;
  border: 0;
  padding: 11px 16px;
  cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
  text-decoration: none;
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.danger-button:hover,
.link-button:hover {
  transform: translateY(-1px);
}

.primary-button {
  background: var(--accent);
  color: white;
}

.secondary-button {
  background: rgba(17, 24, 39, 0.08);
  color: var(--text);
}

.ghost-button {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
}

.danger-button {
  background: rgba(194, 65, 12, 0.12);
  color: var(--danger);
}

.link-button {
  display: inline-flex;
  align-items: center;
  background: transparent;
  color: var(--accent-strong);
  padding-left: 0;
  padding-right: 0;
}

.stats-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat-card strong {
  display: block;
  font-size: 1.6rem;
  margin-top: 8px;
}

.table-shell {
  overflow: hidden;
}

.table-scroll {
  overflow: auto;
}

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

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(17, 24, 39, 0.03);
}

tbody tr:hover {
  background: rgba(17, 24, 39, 0.03);
}

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

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.06);
  font-size: 0.88rem;
}

.status-bar {
  padding: 14px 16px;
}

.status-bar.error {
  color: var(--danger);
  background: rgba(194, 65, 12, 0.08);
}

.status-bar.success {
  color: var(--accent-strong);
  background: rgba(15, 118, 110, 0.08);
}

.hidden {
  display: none !important;
}

.mobile-only {
  display: none;
}

.noscript-warning {
  padding: 16px;
  background: #fff7ed;
  color: var(--danger);
}

@media (max-width: 1100px) {
  .page-grid.columns-2,
  .page-grid.columns-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: min(88vw, 320px);
    transform: translateX(-100%);
    transition: transform 0.22s ease;
    z-index: 20;
  }

  body.menu-open .sidebar {
    transform: translateX(0);
  }

  .mobile-only {
    display: inline-flex;
  }

  .main-panel {
    padding: 18px;
  }
}