:root {
  --ink: #12231c;
  --ink-soft: #3a4f45;
  --muted: #5f7468;
  --line: #d5e0d9;
  --paper: #f3f6f2;
  --panel: #ffffff;
  --accent: #0f6b4c;
  --accent-deep: #0a4d37;
  --accent-soft: #e4f3ec;
  --gain: #0f6b4c;
  --loss: #9b2c2c;
  --shadow: 0 18px 50px rgba(18, 35, 28, 0.08);
  --radius: 18px;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --display: "IBM Plex Serif", Georgia, serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 420px at 8% -10%, rgba(15, 107, 76, 0.16), transparent 60%),
    radial-gradient(700px 380px at 100% 0%, rgba(18, 55, 90, 0.1), transparent 55%),
    linear-gradient(180deg, #eef4ef 0%, var(--paper) 42%, #e8eee9 100%);
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cpath d='M0 60h120M60 0v120' stroke='%230f6b4c' stroke-opacity='0.05' stroke-width='1'/%3E%3C/svg%3E");
}

.site-header,
.layout,
.site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  padding: 1.75rem 0 1.25rem;
}

.brand {
  display: flex;
  gap: 0.9rem;
  align-items: center;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-name {
  margin: 0;
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
}

.brand-sub,
.header-note,
.lede,
.hint,
.disclaimer,
.site-footer p,
.stat-label,
.compare-label,
.empty {
  color: var(--muted);
}

.brand-sub,
.header-note,
.hint,
.disclaimer,
.site-footer p {
  margin: 0.15rem 0 0;
  font-size: 0.92rem;
}

.header-note {
  max-width: 16rem;
  text-align: right;
}

.layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.25rem;
  padding-bottom: 2rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.4rem 1.35rem 1.5rem;
}

.panel h1,
.panel h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0.45rem 0 1.2rem;
}

.form {
  display: grid;
  gap: 1rem;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field > span,
.fieldset legend {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink-soft);
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.72rem 0.85rem;
  background: #fbfcfb;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 107, 76, 0.15);
}

.inline-pair {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.5rem;
}

.suffix {
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
}

.fieldset {
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  display: grid;
  gap: 0.85rem;
  background: linear-gradient(180deg, #fafcfb, #f7faf8);
}

.actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

/* Tabs styling */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.5rem;
}

.tab {
  background: transparent;
  border: none;
  padding: 0.5rem 1rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.tab:hover {
  color: var(--ink);
  background: var(--paper);
}

.tab.active {
  color: var(--accent);
  background: var(--accent-soft);
}

/* Dropzone styling */
.dropzone {
  border: 2px dashed var(--line);
  border-radius: 16px;
  padding: 2.25rem 1.5rem;
  text-align: center;
  background: #fbfcfb;
  cursor: pointer;
  transition: all 0.2s ease;
  display: block;
  margin: 1rem 0;
}

.dropzone:hover,
.dropzone.drag {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  pointer-events: none;
}

.dropzone-icon {
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.dropzone-btn {
  margin-top: 0.5rem;
  pointer-events: none;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.8rem 1.25rem;
  cursor: pointer;
  font-weight: 600;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover {
  background: var(--accent-deep);
}

.btn.ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

.results-body.hidden,
.hidden {
  display: none !important;
}

.empty {
  padding: 2.5rem 0.5rem;
  text-align: center;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin: 1rem 0 1.1rem;
}

.stat {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.9rem 0.85rem;
  background: #fbfcfb;
}

.stat.accent {
  background: var(--accent-soft);
  border-color: #b9d8c8;
}

.stat-label {
  margin: 0;
  font-size: 0.8rem;
}

.stat-value,
.compare-value {
  margin: 0.25rem 0 0;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.stat-sub {
  margin: 0.15rem 0 0;
  color: var(--accent-deep);
  font-size: 0.85rem;
  font-weight: 600;
}

.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: center;
  padding: 0.95rem 1rem;
  border-radius: 14px;
  background: #f4f8f5;
  border: 1px solid var(--line);
  margin-bottom: 1rem;
}

.compare-arrow {
  color: var(--accent);
  font-size: 1.4rem;
  font-weight: 700;
}

.breakdown {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.breakdown th,
.breakdown td {
  padding: 0.55rem 0.35rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.breakdown th:not(:first-child),
.breakdown td:not(:first-child) {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.breakdown th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
}

.change-pos {
  color: var(--gain);
  font-weight: 600;
}

.change-neg {
  color: var(--loss);
  font-weight: 600;
}

.change-zero {
  color: var(--muted);
}

.disclaimer {
  margin-top: 1rem;
  font-size: 0.82rem;
}

.site-footer {
  padding: 0 0 2rem;
}

@media (max-width: 900px) {
  .layout,
  .field-grid,
  .stat-row {
    grid-template-columns: 1fr;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-note {
    text-align: left;
    max-width: none;
  }

  .compare {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .compare-arrow {
    transform: rotate(90deg);
  }
}

@media print {
  body {
    background: white;
    color: black;
  }

  body > *:not(#revised-slip) {
    display: none !important;
  }

  #revised-slip {
    display: block !important;
  }

  .slip-sheet {
    max-width: 100%;
    margin: 0;
    font-family: var(--font);
    font-size: 11pt;
  }

  .slip-header {
    text-align: center;
    margin-bottom: 2rem;
  }
  
  .slip-header h1 {
    font-size: 16pt;
    margin: 0.5rem 0;
    font-family: var(--display);
  }

  .slip-header .gov, .slip-header .office {
    margin: 0;
    font-weight: 600;
  }

  .slip-header .period, .slip-header .badge {
    margin: 0;
    font-size: 9pt;
  }
  
  .slip-header .badge {
    color: var(--muted);
    margin-top: 0.25rem;
  }

  .slip-block {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px dashed var(--line);
  }

  .slip-block h2 {
    font-size: 12pt;
    font-family: var(--display);
    margin: 0 0 0.5rem 0;
  }

  .slip-block p {
    margin: 0.25rem 0;
  }

  .slip-wages {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
  }

  .slip-wages td {
    width: 50%;
    padding: 0.25rem 1rem 0.25rem 0;
    vertical-align: top;
  }

  .wcode {
    display: inline-block;
    width: 3rem;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
  }

  .wamt {
    float: right;
    font-variant-numeric: tabular-nums;
    font-weight: 500;
  }

  .slip-totals {
    margin-bottom: 1.5rem;
  }

  .slip-totals p {
    margin: 0.5rem 0;
    font-size: 12pt;
  }

  .slip-totals .delta {
    font-size: 10pt;
    color: var(--muted);
    margin-top: 1rem;
  }
  
  .slip-foot {
    font-size: 9pt;
    color: var(--muted);
    text-align: center;
    margin-top: 2rem;
  }
}

/* Modal Styling */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(18, 35, 28, 0.4);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: min(500px, calc(100% - 2rem));
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 1001;
}

.modal-content h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.35rem;
}

textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.72rem 0.85rem;
  background: #fbfcfb;
  color: var(--ink);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 107, 76, 0.15);
}