:root {
  --canvas: #f4f1e8;
  --surface: rgba(255, 255, 255, 0.84);
  --surface-strong: rgba(255, 255, 255, 0.96);
  --ink: #1d1b19;
  --secondary-ink: #625e57;
  --line: rgba(0, 0, 0, 0.09);
  --accent: #c95b41;
  --accent-soft: #f7e7e2;
  --success: #2a7e57;
  --warning: #9b6023;
  --danger: #a93e34;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(201, 91, 65, 0.12), transparent 28%),
    linear-gradient(140deg, #f6f3eb, #eeebe1 56%, #ebe6dc);
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  border-radius: 16px;
  padding: 12px 16px;
  background: var(--accent);
  color: white;
  cursor: pointer;
}

button.secondary-button {
  background: var(--surface-strong);
  color: var(--ink);
  border: 1px solid var(--line);
}

button.destructive {
  background: rgba(169, 62, 52, 0.14);
  color: var(--danger);
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  background: var(--surface-strong);
  color: var(--ink);
}

textarea {
  resize: vertical;
}

label span,
.eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--secondary-ink);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.hidden {
  display: none !important;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  gap: 24px;
  min-height: 100vh;
  padding: 24px;
}

.sidebar,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 28px;
  position: sticky;
  top: 24px;
  height: calc(100vh - 48px);
}

.sidebar h1,
.panel h2 {
  margin: 0 0 12px;
  font-size: 28px;
  line-height: 1.05;
}

.sidebar-copy {
  margin: 0;
  color: var(--secondary-ink);
  line-height: 1.5;
}

.auth-card,
.notice {
  padding: 20px;
  background: var(--surface-strong);
  border-radius: 22px;
  border: 1px solid var(--line);
}

.notice {
  background: var(--accent-soft);
}

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

.compact {
  gap: 10px;
}

.main-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.panel {
  padding: 24px;
}

.panel-wide {
  grid-column: 1 / -1;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
  margin-bottom: 20px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
}

.metric-card {
  padding: 18px;
  border-radius: 20px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.metric-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 30px;
}

.inline-form,
.inline-fields,
.button-row,
.session-controls {
  display: flex;
  gap: 12px;
}

.session-controls {
  flex-direction: column;
  align-items: stretch;
}

.inline-form input,
.inline-fields label {
  flex: 1;
}

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

.checkbox-row span {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0;
  text-transform: none;
}

.checkbox-row input {
  width: auto;
}

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

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

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

th {
  color: var(--secondary-ink);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stack-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-strong);
}

.stack-card h3,
.stack-card h4,
.stack-card p {
  margin: 0;
}

.stack-card h3,
.stack-card h4 {
  margin-bottom: 8px;
}

.stack-card p + p {
  margin-top: 8px;
}

.stack-card .meta {
  font-size: 12px;
  color: var(--secondary-ink);
}

.pill-row,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
}

.pill.neutral {
  background: rgba(0, 0, 0, 0.06);
  color: var(--secondary-ink);
}

.pill.success {
  background: rgba(42, 126, 87, 0.12);
  color: var(--success);
}

.pill.warning {
  background: rgba(155, 96, 35, 0.12);
  color: var(--warning);
}

.empty-state {
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: 18px;
  color: var(--secondary-ink);
  background: rgba(255, 255, 255, 0.45);
}

@media (max-width: 1120px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

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