:root {
  --paper: #F5F2EA;
  --paper-raised: #FDFCF8;
  --ink: #1F2A33;
  --ink-soft: #5B6670;
  --rule: #DAD4C4;
  --navy: #1B3A52;
  --navy-deep: #12293C;
  --amber: #D98E2B;
  --amber-bg: #FBEBD3;
  --green: #2F6F4E;
  --green-bg: #DCEBE1;
  --brick: #B8452F;
  --brick-bg: #F5DED7;
  --radius: 10px;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; }

button {
  font-family: var(--font-body);
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}

/* ---------- App bar ---------- */
.appbar {
  background: var(--navy-deep);
  color: #F5F2EA;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 20;
}

.appbar .brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.appbar .brand .mark {
  display: inline-block;
  width: 9px;
  height: 9px;
  background: var(--amber);
  border-radius: 2px;
  transform: rotate(45deg);
}

.appbar .who {
  font-size: 0.8rem;
  color: #C9D3D9;
  font-family: var(--font-mono);
}

.appbar button.link {
  background: none;
  border: none;
  color: #C9D3D9;
  font-size: 0.8rem;
  text-decoration: underline;
  padding: 0;
}

/* ---------- Login ---------- */
.login-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 32px 28px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.03);
}

.login-card .mark-lg {
  width: 22px;
  height: 22px;
  background: var(--amber);
  border-radius: 4px;
  transform: rotate(45deg);
  margin: 0 auto 22px;
}

.login-card h1 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  text-align: center;
  margin: 0 0 4px;
}

.login-card .sub {
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 0 0 24px;
}

label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 14px 0 6px;
}

input[type="text"],
input[type="password"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: 12px 13px;
  font-size: 1rem;
  font-family: var(--font-body);
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

textarea { resize: vertical; min-height: 64px; }

button.primary {
  width: 100%;
  margin-top: 22px;
  padding: 13px;
  background: var(--navy);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.15s ease;
}

button.primary:hover { background: var(--navy-deep); }
button.primary:disabled { opacity: 0.55; cursor: default; }

.error-msg {
  background: var(--brick-bg);
  color: var(--brick);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 0.85rem;
  margin-top: 14px;
}

/* ---------- Layout shell (sidebar + main, desktop) ---------- */
.app-layout {
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
}

/* ---------- Site tabs / sidebar ---------- */
.site-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 12px 16px;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 57px;
  z-index: 19;
}

.site-tab {
  flex: none;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
  white-space: nowrap;
  text-align: left;
}

.site-tab.active {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}

.main-panel {
  flex: 1;
  min-width: 0;
  width: 100%;
}

/* ---------- Toolbar: search + status filter ---------- */
.toolbar {
  display: flex;
  gap: 10px;
  padding: 14px 16px 0;
  max-width: 960px;
  margin: 0 auto;
}

.toolbar input[type="search"] {
  flex: 1;
  padding: 10px 13px;
  font-size: 0.92rem;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: #fff;
  font-family: var(--font-body);
}

.toolbar select {
  width: auto;
  padding: 10px 13px;
  font-size: 0.85rem;
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: #fff;
  font-family: var(--font-body);
  color: var(--ink-soft);
}

/* ---------- Task list ---------- */
.task-list {
  padding: 14px 16px 40px;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

.site-meta {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 14px;
  font-family: var(--font-mono);
}

.task-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.task-card {
  position: relative;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}

/* Signature element: a stamped ledger tag on the corner of every task card */
.ledger-tag {
  position: absolute;
  top: 0;
  right: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 10px 4px 12px;
  border-bottom-left-radius: 8px;
  text-transform: uppercase;
}

.ledger-tag.pending { background: var(--amber-bg); color: var(--amber); }
.ledger-tag.done { background: var(--green-bg); color: var(--green); }
.ledger-tag.overdue { background: var(--brick-bg); color: var(--brick); }

.task-head {
  padding: 14px 16px 10px;
  cursor: pointer;
}

.task-no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.task-desc {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  margin: 2px 0 6px;
  padding-right: 70px;
}

.task-dates {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.task-body {
  padding: 4px 16px 16px;
  border-top: 1px dashed var(--rule);
  display: none;
}

.task-card.open .task-body { display: block; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.save-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

button.save-btn {
  background: var(--navy);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 0.85rem;
}

button.save-btn:disabled { opacity: 0.5; }

.save-status {
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.save-status.ok { color: var(--green); }
.save-status.err { color: var(--brick); }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-soft);
}

.empty-state .mark-lg {
  margin-bottom: 18px;
}

/* ---------- Admin dashboard ---------- */
.admin-wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 16px 50px;
  width: 100%;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 14px 16px;
}

.stat-card .num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
}

.stat-card .label {
  font-size: 0.75rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.admin-section {
  margin-bottom: 30px;
}

.admin-section h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  border-bottom: 2px solid var(--navy);
  padding-bottom: 8px;
  margin-bottom: 12px;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}

table.data-table th {
  text-align: left;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  padding: 9px 12px;
  border-bottom: 1px solid var(--rule);
}

table.data-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

table.data-table tr:last-child td { border-bottom: none; }

tr[data-site-row]:hover td {
  background: var(--amber-bg);
}

.pill {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
}

.pill.overdue { background: var(--brick-bg); color: var(--brick); }
.pill.ok { background: var(--green-bg); color: var(--green); }

.csv-box {
  background: var(--paper-raised);
  border: 1px dashed var(--rule);
  border-radius: var(--radius);
  padding: 18px;
}

.csv-box textarea { font-family: var(--font-mono); font-size: 0.8rem; min-height: 120px; }

.small-note {
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-top: 8px;
}

.toggle-row {
  display: flex;
  gap: 16px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 18px;
}

.toggle-row button {
  background: none;
  border: none;
  padding: 10px 2px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
}

.toggle-row button.active {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

@media (max-width: 420px) {
  .field-row { grid-template-columns: 1fr; }
}

/* ---------- Desktop / laptop layout ---------- */
@media (min-width: 900px) {
  .app-layout {
    flex-direction: row;
    align-items: flex-start;
  }

  .site-tabs {
    flex-direction: column;
    align-items: stretch;
    width: 240px;
    flex: none;
    overflow-x: visible;
    overflow-y: auto;
    position: sticky;
    top: 57px;
    height: calc(100vh - 57px);
    border-bottom: none;
    border-right: 1px solid var(--rule);
    padding: 18px 12px;
    gap: 4px;
  }

  .site-tab {
    width: 100%;
  }

  .toolbar,
  .task-list {
    max-width: 1100px;
    padding-left: 28px;
    padding-right: 28px;
  }

  .toolbar { padding-top: 22px; }
  .task-list { padding-top: 14px; padding-bottom: 60px; }

  .task-grid {
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    align-items: start;
  }

  .admin-wrap {
    max-width: 1100px;
    padding: 28px 28px 60px;
  }
}