:root {
  --ink: #17202a;
  --muted: #64748b;
  --line: #cbd5e1;
  --panel: #ffffff;
  --surface: #f4f7f9;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --danger: #b91c1c;
  --ok: #166534;
  font-family: Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
}

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

button {
  min-height: 46px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  border-radius: 7px;
  padding: 10px 16px;
  cursor: pointer;
}

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

button.danger {
  border-color: #fca5a5;
  color: var(--danger);
}

button:hover {
  border-color: var(--accent);
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 34px;
}

h2 {
  font-size: 22px;
}

.app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 86px 1fr;
}

.rail {
  background: var(--panel);
  border-right: 1px solid var(--line);
  padding: 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  position: sticky;
  top: 0;
  height: 100vh;
}

.rail-button {
  width: 56px;
  height: 56px;
  padding: 0;
  font-weight: 700;
}

.rail-button.active {
  color: white;
  background: var(--accent);
  border-color: var(--accent);
}

main {
  padding: 24px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.topline,
.screen-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 20px;
}

.screen-header {
  justify-content: flex-start;
}

.muted {
  color: var(--muted);
  margin: 6px 0 0;
}

.pill {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 999px;
  padding: 9px 14px;
  white-space: nowrap;
}

.status-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.pill a {
  color: var(--accent);
  font-weight: 700;
}

.message {
  margin: 14px 0;
  padding: 12px 14px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.message.ok {
  color: var(--ok);
  border-color: #86efac;
}

.message.error {
  color: var(--danger);
  border-color: #fca5a5;
}

.hidden {
  display: none;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 220px));
  gap: 16px;
  margin-top: 20px;
}

.action-card {
  min-height: 142px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  text-align: left;
  background: var(--panel);
}

.action-icon {
  width: 40px;
  height: 40px;
  border-radius: 7px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--accent);
  font-weight: 700;
}

.status-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 220px));
  gap: 16px;
}

.status-grid > div,
.band,
.list-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 7px;
}

.status-grid > div {
  padding: 16px;
}

.stat-label {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}

.form-stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.band {
  padding: 18px;
}

.band h2 {
  margin-bottom: 14px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 14px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 700;
}

.required-field {
  color: var(--danger);
}

.required-tag {
  align-self: flex-start;
  border: 1px solid #fca5a5;
  border-radius: 999px;
  color: var(--danger);
  background: #fef2f2;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
  min-height: 46px;
  padding: 10px 12px;
  color: var(--ink);
}

input.required-empty,
select.required-empty,
textarea.required-empty,
#signaturePad.required-empty {
  border-color: #dc2626;
  background: #fff7f7;
  box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.12);
}

textarea {
  min-height: 88px;
  resize: vertical;
}

.wide {
  grid-column: span 2;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(170px, 1fr));
  gap: 10px 16px;
  margin-top: 14px;
}

.check-grid label,
.checklist label,
.personnel label {
  flex-direction: row;
  align-items: center;
  font-weight: 600;
}

input[type="checkbox"] {
  width: 24px;
  min-height: 24px;
  height: 24px;
}

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

.sticky-actions {
  position: sticky;
  bottom: 0;
  background: rgba(244, 247, 249, 0.95);
  border-top: 1px solid var(--line);
  padding: 12px 0 0;
}

.list {
  display: grid;
  gap: 12px;
}

.list-card {
  padding: 14px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
}

.personnel {
  display: grid;
  gap: 14px;
}

.person-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(220px, 1fr));
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.person-row input {
  min-height: 58px;
  font-size: 18px;
  padding: 14px 14px;
}

.person-row input[type="checkbox"] {
  width: 30px;
  height: 30px;
  min-height: 30px;
}

.person-row label:has(input[type="checkbox"]) {
  min-height: 58px;
  align-items: center;
}

.checklist {
  display: grid;
  grid-template-columns: 1fr 160px 180px;
  gap: 10px;
  align-items: center;
}

.checklist .head {
  color: var(--muted);
  font-weight: 700;
}

#signaturePad {
  display: block;
  width: 100%;
  max-width: 1200px;
  height: 360px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 7px;
  touch-action: none;
  margin-bottom: 14px;
}

#pdfFrame {
  width: 100%;
  height: calc(100vh - 190px);
  margin-top: 14px;
  border: 1px solid var(--line);
  background: white;
  border-radius: 7px;
}

.review-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.review-filters {
  display: grid;
  gap: 14px;
  position: sticky;
  top: 24px;
}

.review-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.review-stats > div {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 12px;
  background: var(--surface);
}

.review-workspace {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.review-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.review-list {
  display: grid;
  gap: 10px;
}

.review-card {
  width: 100%;
  min-height: 74px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  text-align: left;
}

.review-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.14);
}

.review-card small {
  display: block;
  color: var(--muted);
  margin-top: 4px;
  overflow-wrap: anywhere;
}

.review-status {
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 6px 10px;
  font-weight: 700;
  white-space: nowrap;
}

.review-status.pending {
  color: #854d0e;
  background: #fef9c3;
  border-color: #fde68a;
}

.review-status.correction {
  color: var(--danger);
  background: #fef2f2;
  border-color: #fca5a5;
}

.review-status.approved {
  color: var(--ok);
  background: #f0fdf4;
  border-color: #86efac;
}

.review-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 12px;
}

.review-field {
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
  min-width: 0;
}

.review-field span {
  display: block;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 4px;
}

.review-field strong {
  display: block;
  overflow-wrap: anywhere;
}

.review-actions {
  margin-top: 16px;
}

.empty-state {
  border: 1px dashed var(--line);
  border-radius: 7px;
  padding: 18px;
  color: var(--muted);
  background: var(--surface);
}

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

  .rail {
    position: sticky;
    z-index: 10;
    top: 0;
    height: auto;
    flex-direction: row;
    justify-content: center;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  main {
    padding: 16px;
  }

  .field-grid,
  .check-grid,
  .status-grid,
  .action-grid,
  .review-detail-grid {
    grid-template-columns: 1fr 1fr;
  }

  .review-layout {
    grid-template-columns: 1fr;
  }

  .review-filters {
    position: static;
  }

  .person-row {
    grid-template-columns: 1fr 1fr;
  }

  .wide {
    grid-column: span 2;
  }

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

@media (max-width: 640px) {
  h1 {
    font-size: 28px;
  }

  .field-grid,
  .check-grid,
  .status-grid,
  .action-grid,
  .review-detail-grid {
    grid-template-columns: 1fr;
  }

  .review-card {
    grid-template-columns: 1fr;
  }

  .person-row {
    grid-template-columns: 1fr;
  }

  .wide {
    grid-column: span 1;
  }
}