/* Design Tokens & Theme Variables */
:root {
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Times New Roman", Times, Georgia, serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Default Light Theme */
  --bg-page: #f4f6f9;
  --bg-card: #ffffff;
  --bg-surface: #ffffff;
  --bg-subtle: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border-color: #cbd5e1;
  --border-strong: #000000;
  --accent-color: #1e40af;
  --accent-hover: #1d4ed8;
  --accent-light: #eff6ff;
  --success-color: #15803d;
  --success-bg: #dcfce7;
  --warning-color: #b45309;
  --warning-bg: #fef3c7;
  --danger-color: #b91c1c;
  --danger-bg: #fee2e2;
  --paper-bg: #ffffff;
  --paper-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Dark Mode Tokens (Staff Portal) */
[data-theme="dark"] {
  --bg-page: #0f172a;
  --bg-card: #1e293b;
  --bg-surface: #1e293b;
  --bg-subtle: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-color: #334155;
  --border-strong: #475569;
  --accent-color: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-light: #1e293b;
  --paper-bg: #ffffff;
  /* The timesheet paper remains crisp white for authentic readability */
  --paper-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

body {
  background-color: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  transition: background-color 0.2s ease, color 0.2s ease;
}

/* Typography, Code & Callout Blocks */
code,
kbd,
pre,
.code,
html[data-theme="dark"] code,
html[data-theme="dark"] kbd,
[data-theme="dark"] code,
[data-theme="dark"] kbd,
[data-theme="dark"] .staff-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace !important;
  font-size: 0.875em !important;
  padding: 0.15em 0.5em !important;
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  display: inline-block !important;
  vertical-align: baseline !important;
}

html[data-theme="dark"] code,
html[data-theme="dark"] kbd,
html[data-theme="dark"] pre,
[data-theme="dark"] code,
[data-theme="dark"] kbd,
[data-theme="dark"] pre,
[data-theme="dark"] .staff-content code {
  background-color: #334155 !important;
  background: #334155 !important;
  color: #60a5fa !important;
  /* Bright high-contrast light blue */
  border: 1px solid #475569 !important;
}

html:not([data-theme="dark"]) code,
html:not([data-theme="dark"]) kbd,
[data-theme="light"] code,
[data-theme="light"] kbd {
  background-color: #f1f5f9 !important;
  background: #f1f5f9 !important;
  color: #1d4ed8 !important;
  border: 1px solid #cbd5e1 !important;
}

/* Manual Section Headings */
.manual-heading {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #1d4ed8;
}

[data-theme="dark"] .manual-heading {
  color: #60a5fa !important;
  /* Bright readable blue on dark slate */
}

.callout-info {
  background-color: var(--accent-light);
  border-left: 4px solid var(--accent-color);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  color: var(--text-main);
}

[data-theme="dark"] .callout-info {
  background-color: #1e293b !important;
  border-color: #3b82f6 !important;
  color: #f8fafc !important;
}

[data-theme="light"] .callout-info {
  background-color: #eff6ff !important;
  border-color: #1e40af !important;
  color: #1e3a8a !important;
}

/* App Header & Navigation */
.app-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-title {
  font-weight: 700;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Oat & Application Uniform Button Hierarchy */
.btn,
.button,
button[type="button"],
button[type="submit"],
a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  min-width: 100px;
  padding: 0.45rem 1.1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 0.875rem;
  text-decoration: none;
  box-sizing: border-box;
  text-align: center;
  line-height: 1;
}

.btn-primary,
.button.primary,
button.primary {
  background-color: var(--accent-color);
  color: #ffffff !important;
  border-color: var(--accent-color);
}

.btn-primary:hover,
.button.primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-outline,
.button.outline,
button.outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-main) !important;
}

.btn-outline:hover,
.button.outline:hover {
  background-color: var(--bg-subtle);
  border-color: var(--border-strong);
}

.btn-success,
.button.success {
  background-color: var(--success-color);
  color: #ffffff !important;
}

.btn-danger,
.button.danger {
  background-color: var(--danger-color);
  color: #ffffff !important;
}

/* Compact / Table Action Uniform Button Size */
.btn-sm,
.button.sm,
.table-btn {
  height: 32px !important;
  min-width: 86px !important;
  padding: 0.3rem 0.75rem !important;
  font-size: 0.8125rem !important;
  font-weight: 600 !important;
  border-radius: var(--radius-sm) !important;
}

/* Tab Switcher Uniform Buttons */
.tab-btn {
  height: 38px !important;
  min-width: 190px !important;
  font-size: 0.875rem !important;
  font-weight: 600 !important;
}

/* Initial Button in Table Cell */
.btn-initial {
  height: 26px !important;
  min-width: 64px !important;
  padding: 2px 6px !important;
  font-size: 0.75rem !important;
  font-weight: 700 !important;
  border: 1px dashed #000000 !important;
  background: #ffffff !important;
  color: #000000 !important;
  border-radius: 2px !important;
}

.btn-initial:hover {
  background: #f1f5f9 !important;
}

/* Modal Form Buttons */
.btn-modal {
  height: 38px !important;
  min-width: 110px !important;
}

/* Staff Layout */
.staff-container {
  display: flex;
  min-height: calc(100vh - 60px);
}

.staff-sidebar {
  width: 240px;
  background-color: var(--bg-card);
  border-right: 1px solid var(--border-color);
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.staff-sidebar a {
  display: flex;
  align-items: center;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 500;
}

.staff-sidebar a.active,
.staff-sidebar a:hover {
  background-color: var(--bg-subtle);
  color: var(--accent-color);
}

.staff-content {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
}

/* Timesheet Paper Canvas (PDF Replica) */
.timesheet-workspace {
  max-width: 860px;
  margin: 1.25rem auto;
  padding: 0 0.75rem;
}

.paper-sheet {
  background-color: #ffffff !important;
  color: #000000 !important;
  font-family: var(--font-serif);
  padding: 1.5rem 2rem;
  border-radius: 4px;
  box-shadow: var(--paper-shadow);
  border: 1px solid #d1d5db;
  box-sizing: border-box;
}

.pdf-header {
  text-align: center;
  margin-bottom: 0.75rem;
}

.pdf-header h1 {
  font-size: 1.3rem;
  font-weight: bold;
  margin: 0 0 0.15rem 0;
  font-family: var(--font-serif);
}

.pdf-header h2 {
  font-size: 1.15rem;
  font-weight: bold;
  margin: 0 0 0.4rem 0;
  font-family: var(--font-serif);
}

.pdf-header .rule-notice {
  font-size: 0.92rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.pdf-meta-box {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
  padding-bottom: 2px;
}

.pdf-meta-left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.pdf-meta-item {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.pdf-meta-label {
  font-weight: normal;
}

.pdf-meta-value {
  font-weight: bold;
  font-size: 1rem;
}

.pdf-codes-section {
  font-size: 0.75rem;
  line-height: 1.3;
  margin: 0.4rem 0 0.75rem 0;
  padding: 0.35rem 0.5rem;
  border: 1px solid #000000;
  background-color: #fafafa;
  font-family: var(--font-serif);
}

.pdf-codes-section p {
  margin: 0 0 0.25rem 0;
}

.pdf-codes-section p:last-child {
  margin-bottom: 0;
}

.pdf-codes-section strong {
  font-weight: bold;
}

/* 2x2 Timesheet Grid Layout */
.timesheet-grid-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 0.6rem;
}

.timesheet-grid-col {
  flex: 1;
  position: relative;
  min-width: 0;
}

.pdf-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-serif);
  font-size: 0.8rem;
  margin-bottom: 0.2rem;
  border: 1px solid #000000;
}

.pdf-table th,
.pdf-table td {
  border: 1px solid #000000;
  padding: 0.2rem 0.25rem;
  text-align: center;
  vertical-align: middle;
  height: 24px;
  box-sizing: border-box;
}

.pdf-table th {
  font-weight: bold;
  background-color: #f1f5f9;
}

.col-date {
  width: 28%;
}

.col-activity {
  width: 32%;
}

.col-hours {
  width: 20%;
}

.col-initials {
  width: 20%;
}

.pdf-table tr.filler-row td {
  background-color: #fafafa;
  color: #cbd5e1;
}

.pdf-table input,
.pdf-table select {
  width: 100%;
  border: none;
  background: transparent;
  text-align: center;
  font-family: inherit;
  font-size: inherit;
  padding: 2px;
  outline: none;
}

.pdf-table select {
  text-align-last: center;
  cursor: pointer;
}

.pdf-table input:focus,
.pdf-table select:focus {
  background-color: #f0f9ff;
  border-radius: 2px;
}

.week-summary-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  padding: 0.2rem 0.4rem;
  background-color: #f8fafc;
  border: 1px solid #cbd5e1;
  border-top: none;
  margin-bottom: 0.4rem;
  font-family: var(--font-family);
}

.goal-badge {
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.goal-met {
  background-color: var(--success-bg);
  color: var(--success-color);
}

.goal-pending {
  background-color: var(--warning-bg);
  color: var(--warning-color);
}

/* Monthly Grand Total Box */
.pdf-grand-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0.75rem;
  font-size: 0.95rem;
  font-weight: bold;
  border: 1px solid #000000;
  background-color: #f8fafc;
  margin-bottom: 0.5rem;
}

/* Compliance Notice & Signatures */
.pdf-compliance-notice {
  font-size: 0.78rem;
  line-height: 1.25;
  margin: 0.4rem 0 1rem 0;
  font-family: var(--font-serif);
}

.pdf-signatures-row {
  display: flex;
  justify-content: space-between;
  gap: 1.25rem;
  margin-top: 1rem;
}

.signature-block {
  flex: 1;
  text-align: center;
}

.signature-script {
  min-height: 26px;
  font-family: 'Brush Script MT', 'Dancing Script', 'Caveat', cursive, serif;
  font-size: 1.15rem;
  font-style: italic;
  color: #1e3a8a;
  display: flex;
  align-items: center;
  justify-content: center;
}

.signature-line {
  border-top: 1px solid #000000;
  padding-top: 0.3rem;
  font-size: 0.78rem;
  font-weight: bold;
  text-transform: uppercase;
  font-family: var(--font-serif);
}

/* Mobile Tabs Navigation (Visible on small screens) */
.mobile-week-tabs {
  display: none;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.mobile-week-tab {
  flex: 1;
  padding: 0.6rem 0.2rem;
  text-align: center;
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: #000000;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
}

.mobile-week-tab.active {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
}

/* Responsive Breakpoints */
@media screen and (max-width: 768px) {
  .staff-container {
    flex-direction: column;
  }

  .staff-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    flex-direction: row;
    overflow-x: auto;
  }

  .timesheet-workspace {
    padding: 0;
  }

  .paper-sheet {
    padding: 1rem;
    border-radius: 0;
    box-shadow: none;
  }

  .timesheet-grid-row {
    flex-direction: column;
    gap: 0.75rem;
  }

  .mobile-week-tabs {
    display: flex;
  }

  .mobile-hide {
    display: none !important;
  }

  .pdf-signatures-row {
    flex-direction: column;
    gap: 1.5rem;
  }

  .signature-block {
    width: 100%;
  }
}

/* Print Engine Stylesheet (@media print) */
@media print {
  @page {
    size: letter portrait;
    margin: 0.3in 0.35in;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
    font-size: 10pt !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .app-header,
  .staff-sidebar,
  .no-print,
  .btn,
  .mobile-week-tabs,
  .week-summary-row {
    display: none !important;
  }

  .only-print {
    display: inline !important;
  }

  .timesheet-workspace {
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .paper-sheet {
    border: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    width: 100% !important;
    page-break-inside: avoid !important;
  }

  .pdf-header {
    margin-bottom: 0.4rem !important;
  }

  .pdf-header h1 {
    font-size: 1.15rem !important;
    margin: 0 !important;
  }

  .pdf-header h2 {
    font-size: 1rem !important;
    margin: 0 0 0.2rem 0 !important;
  }

  .pdf-header .rule-notice {
    font-size: 0.85rem !important;
    margin-bottom: 0.3rem !important;
  }

  .pdf-meta-box {
    margin-bottom: 0.3rem !important;
    font-size: 0.88rem !important;
  }

  .pdf-codes-section {
    font-size: 6.8pt !important;
    padding: 0.25rem 0.4rem !important;
    margin: 0.25rem 0 0.5rem 0 !important;
    line-height: 1.2 !important;
  }

  .timesheet-grid-row {
    display: flex !important;
    gap: 0.85rem !important;
    margin-bottom: 0.45rem !important;
    page-break-inside: avoid !important;
  }

  .pdf-table {
    font-size: 7.5pt !important;
    margin-bottom: 0 !important;
  }

  .pdf-table th,
  .pdf-table td {
    border: 1px solid #000000 !important;
    padding: 2px 2px !important;
    height: 20px !important;
  }

  .pdf-table th {
    background-color: #f1f5f9 !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .pdf-table tr.filler-row td {
    background-color: #ffffff !important;
    color: #cbd5e1 !important;
  }

  .pdf-grand-total-row {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding: 0.25rem 0.6rem !important;
    font-size: 8.8pt !important;
    margin-bottom: 0.45rem !important;
    background-color: #f8fafc !important;
    border: 1px solid #000000 !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .pdf-compliance-notice {
    font-size: 7pt !important;
    line-height: 1.25 !important;
    margin: 0.35rem 0 0.8rem 0 !important;
  }

  .pdf-signatures-row {
    display: flex !important;
    gap: 1.25rem !important;
    margin-top: 0.8rem !important;
    page-break-inside: avoid !important;
  }

  .signature-script {
    min-height: 24px !important;
    font-size: 1.1rem !important;
  }

  .signature-line {
    font-size: 7.2pt !important;
    padding-top: 3px !important;
  }
}