/* ─────────────────────────────────────────────────────────────────────────────
   Hayes Brain Admin — shared design system
   For: Bookkeeper, Invoices, Kitchen, Marketing Flask agents
   Spec: docs/superpowers/specs/2026-04-10-hayes-brain-admin-design.md
   ───────────────────────────────────────────────────────────────────────────── */

:root {
  /* Shared tokens — identical across all agents */
  --hb-oatmeal:    #F8F5EE;
  --hb-ink:        #1A1714;
  --hb-rule:       rgba(26, 23, 20, 0.09);
  --hb-rule-soft:  rgba(26, 23, 20, 0.05);
  --hb-label:      rgba(26, 23, 20, 0.40);
  --hb-secondary:  rgba(26, 23, 20, 0.55);
  --hb-mist:       #D1E0DE;
  --hb-keylime:    #EEF4CE;
  --hb-positive:   #4A7C59;
  --hb-alert:      #C8102E;

  /* Per-agent override — each agent sets this in its own override file */
  --hb-primary:    #4D5C60;

  /* Fonts — system stack, no custom loading required */
  --hb-sans:  -apple-system, BlinkMacSystemFont, "Inter", system-ui, sans-serif;
  --hb-mono:  "SF Mono", Monaco, "DM Mono", "Courier New", monospace;
}

/* ─── Base ─────────────────────────────────────────────────────────────────── */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--hb-oatmeal);
  color: var(--hb-ink);
  font-family: var(--hb-sans);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  font-family: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  padding: 0;
}

/* ─── Page container ───────────────────────────────────────────────────────── */

.hb-page {
  max-width: 980px;
  margin: 0 auto;
  padding: 56px;
}

/* ─── Utility: hairline rules ──────────────────────────────────────────────── */

.hb-rule    { border-top: 1px solid var(--hb-rule); }
.hb-rule-b  { border-bottom: 1px solid var(--hb-rule); }
.hb-soft    { border-top: 1px solid var(--hb-rule-soft); }
.hb-soft-b  { border-bottom: 1px solid var(--hb-rule-soft); }

/* ─── Section 2: Header ────────────────────────────────────────────────────── */

.hb-header {
  padding-bottom: 40px;
  border-bottom: 1px solid var(--hb-rule);
}

.hb-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.hb-header-return {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--hb-label);
  margin-bottom: 32px;
  transition: color 150ms;
}
.hb-header-return:hover { color: var(--hb-ink); }

.hb-header-kicker {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--hb-label);
  margin: 0 0 12px 0;
}

.hb-header-subtitle {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.2;
  color: var(--hb-ink);
  margin: 0;
}
.hb-header-subtitle .hb-period { color: var(--hb-primary); }

.hb-header-wordmark {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  text-transform: uppercase;
  color: var(--hb-primary);
}

.hb-header-sub {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--hb-label);
  text-align: right;
  margin-top: 8px;
}

/* ─── Section 3: Status block ──────────────────────────────────────────────── */

.hb-status {
  padding: 20px 0;
  border-bottom: 1px solid var(--hb-rule);
}

.hb-status-row {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.hb-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.hb-status-dot-healthy { background: var(--hb-positive); }
.hb-status-dot-alert   { background: var(--hb-alert); }

.hb-status-label {
  font-family: var(--hb-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2.5px;
}
.hb-status-label-healthy { color: var(--hb-positive); }
.hb-status-label-alert   { color: var(--hb-alert); }

.hb-status-separator {
  font-family: var(--hb-mono);
  font-size: 10px;
  color: var(--hb-label);
}

.hb-status-context {
  font-family: var(--hb-mono);
  font-size: 11px;
  color: var(--hb-secondary);
}

.hb-status-right {
  margin-left: auto;
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--hb-label);
}

/* Error drop-down */

.hb-errors {
  padding-left: 24px;
  border-bottom: 1px solid var(--hb-rule);
}

.hb-error-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
}
.hb-error-row + .hb-error-row {
  border-top: 1px solid var(--hb-rule-soft);
}

.hb-error-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--hb-alert);
}

.hb-error-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--hb-ink);
  margin-right: 12px;
}

.hb-error-time {
  font-family: var(--hb-mono);
  font-size: 10px;
  color: var(--hb-label);
}

.hb-error-impact {
  font-size: 12px;
  color: var(--hb-secondary);
  margin: 4px 0 12px 0;
}

.hb-error-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.hb-error-action {
  font-family: var(--hb-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--hb-label);
  padding-bottom: 1px;
  border-bottom: 1px solid transparent;
  transition: color 150ms, border-color 150ms;
}
.hb-error-action:hover { color: var(--hb-ink); border-bottom-color: var(--hb-ink); }
.hb-error-action-primary {
  color: var(--hb-primary);
  border-bottom-color: var(--hb-primary);
}

/* ─── Section 4: At-a-Glance stats strip ──────────────────────────────────── */

.hb-stats-section {
  padding: 48px 0;
}

.hb-stats-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 32px;
}

.hb-section-label {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--hb-label);
  margin: 0;
}

.hb-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.hb-stat {
  padding-right: 40px;
}
.hb-stat + .hb-stat {
  padding-left: 40px;
  border-left: 1px solid var(--hb-rule-soft);
}

.hb-stat-label {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--hb-label);
  margin: 0 0 20px 0;
}

.hb-stat-num {
  font-family: var(--hb-mono);
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--hb-ink);
  font-variant-numeric: tabular-nums;
  margin: 0;
}

.hb-stat-sub {
  font-family: var(--hb-mono);
  font-size: 10px;
  color: var(--hb-secondary);
  margin: 12px 0 0 0;
}

/* ─── Section 5: Drop files zone ───────────────────────────────────────────── */

.hb-drop-section {
  padding: 48px 0;
  border-top: 1px solid var(--hb-rule);
}

.hb-drop-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
}

.hb-drop-zone {
  padding: 48px 0;
  text-align: center;
  cursor: pointer;
  border: 1px dashed rgba(26, 23, 20, 0.2);
  border-radius: 4px;
  transition: border-color 150ms, background 150ms;
}
.hb-drop-zone:hover { border-color: var(--hb-ink); }
.hb-drop-zone.hb-drop-active {
  border-color: var(--hb-primary);
  border-style: solid;
  background: rgba(209, 224, 222, 0.5); /* Mist at 50% */
}

.hb-drop-prompt {
  font-size: 13px;
  font-weight: 500;
  color: var(--hb-ink);
  margin: 0 0 6px 0;
}

.hb-drop-sub {
  font-family: var(--hb-mono);
  font-size: 11px;
  color: var(--hb-secondary);
  margin: 0;
}

.hb-drop-input {
  display: none;
}

.hb-drop-toast {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 10px 16px;
  background: var(--hb-mist);
  color: var(--hb-primary);
  font-family: var(--hb-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.hb-uploads-list {
  margin-top: 40px;
}

.hb-uploads-label {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--hb-label);
  margin: 0 0 12px 0;
}

.hb-upload-row {
  display: grid;
  grid-template-columns: 6fr 3fr 3fr;
  gap: 16px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--hb-rule-soft);
}
.hb-upload-row:first-child { border-top: 1px solid var(--hb-rule); }

.hb-upload-name {
  font-family: var(--hb-mono);
  font-size: 12px;
  color: var(--hb-ink);
}

.hb-upload-time {
  font-family: var(--hb-mono);
  font-size: 11px;
  color: var(--hb-secondary);
}

.hb-upload-result {
  text-align: right;
}
.hb-upload-result-label {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--hb-label);
}
.hb-upload-result-link {
  font-family: var(--hb-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--hb-primary);
  border-bottom: 1px solid rgba(77, 92, 96, 0.25);
  padding-bottom: 1px;
}

/* ─── Section 6: Agent-specific content zone (shared sub-patterns) ────────── */

.hb-content-section {
  padding: 48px 0;
  border-top: 1px solid var(--hb-rule);
}

/* Table pattern — used by Recent Activity, Chart of Accounts, etc. */

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

.hb-table thead th {
  font-family: var(--hb-mono);
  font-size: 8.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--hb-label);
  text-align: left;
  padding: 0 0 12px 0;
  border-bottom: 1px solid var(--hb-rule);
}
.hb-table thead th.num { text-align: right; }

.hb-table tbody td {
  font-size: 13px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hb-rule-soft);
  color: var(--hb-ink);
}
.hb-table tbody td.num {
  font-family: var(--hb-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
}
.hb-table tbody td.mono {
  font-family: var(--hb-mono);
  color: var(--hb-secondary);
}

.hb-table tbody tr.hb-row-link {
  cursor: pointer;
  transition: background 150ms;
}
.hb-table tbody tr.hb-row-link:hover {
  background: rgba(26, 23, 20, 0.02);
}

.hb-table tbody tr.hb-row-new {
  background: rgba(238, 244, 206, 0.4); /* Keylime at 40% */
}

.hb-row-new-tag {
  display: inline-block;
  margin-left: 8px;
  font-family: var(--hb-mono);
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--hb-primary);
}

.hb-ref {
  font-family: var(--hb-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--hb-primary);
}

.hb-status-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--hb-mono);
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}
.hb-status-chip-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
}

/* ─── Section 7: Settings ──────────────────────────────────────────────────── */

.hb-settings-section {
  padding: 48px 0;
  border-top: 1px solid var(--hb-rule);
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 40px;
}

.hb-settings-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
  color: var(--hb-ink);
  margin: 8px 0 16px 0;
}

.hb-settings-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--hb-secondary);
  margin: 0;
}

.hb-setting-row {
  padding: 16px 0;
}
.hb-setting-row + .hb-setting-row {
  border-top: 1px solid var(--hb-rule-soft);
}

.hb-setting-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.hb-setting-label {
  font-family: var(--hb-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--hb-label);
}

.hb-setting-note {
  font-family: var(--hb-mono);
  font-size: 9px;
  color: var(--hb-label);
}

.hb-setting-value {
  font-size: 14px;
  color: var(--hb-ink);
  margin: 0;
}

/* ─── Section 8: Action footer ─────────────────────────────────────────────── */

.hb-actions {
  padding: 40px 0;
  border-top: 1px solid var(--hb-rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hb-actions-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hb-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--hb-mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  transition: opacity 150ms, background 150ms, color 150ms;
  border: 1px solid transparent;
}
.hb-btn-primary {
  background: var(--hb-primary);
  color: #ffffff;
}
.hb-btn-primary:hover { opacity: 0.9; }

.hb-btn-ghost {
  background: transparent;
  color: var(--hb-ink);
  border-color: var(--hb-rule);
}
.hb-btn-ghost:hover { background: rgba(26, 23, 20, 0.04); }

.hb-actions-right {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--hb-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  color: var(--hb-secondary);
  transition: color 150ms;
}
.hb-actions-right:hover { color: var(--hb-ink); }

/* ─── Section 9: Page footer ───────────────────────────────────────────────── */

.hb-footer {
  padding: 32px 0 16px 0;
  border-top: 1px solid var(--hb-rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hb-footer-left {
  display: flex;
  align-items: center;
  gap: 32px;
}

.hb-footer-wordmark {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--hb-primary);
}

.hb-footer-meta {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--hb-label);
}

.hb-footer-return {
  font-family: var(--hb-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--hb-label);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 150ms;
}
.hb-footer-return:hover { color: var(--hb-ink); }