:root {
    --bg: #0d0f0b;
    --surface: #141610;
    --olive: #8a9a52;
    --olive-bright: #b5cc5e;
    --olive-dim: #4a5428;
    --cream: #e8e3d4;
    --muted: #7a7a6a;
    --red: #c84b3a;
    --border: #2a2d1e;
    --mono: 'IBM Plex Mono', monospace;
    --serif: 'Source Serif 4', Georgia, serif;
    --display: 'Playfair Display', Georgia, serif;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  body {
    background: var(--bg);
    color: var(--cream);
    font-family: var(--serif);
    min-height: 100vh;
    overflow-x: hidden;
  }

  /* Grain overlay */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 1000;
    opacity: 0.6;
  }

  header {
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 2rem 1.2rem;
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    animation: fadeDown 0.6s ease both;
  }

  .masthead-label {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--olive);
    border: 1px solid var(--olive-dim);
    padding: 0.25rem 0.5rem;
    flex-shrink: 0;
  }

  .masthead-rule {
    flex: 1;
    height: 1px;
    background: var(--border);
  }

  .masthead-date {
    font-family: var(--mono);
    font-size: 0.6rem;
    color: var(--muted);
    letter-spacing: 0.1em;
  }

  .hero {
    padding: 4rem 2rem 2rem;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeUp 0.7s ease 0.1s both;
  }

  .overline {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--olive);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .overline::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--olive-dim);
    max-width: 3rem;
  }

  h1 {
    font-family: var(--display);
    font-size: clamp(2.4rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.05;
    color: var(--cream);
    margin-bottom: 1.2rem;
  }

  h1 em {
    font-style: italic;
    color: var(--olive-bright);
  }

  .subhead {
    font-size: 1rem;
    line-height: 1.65;
    color: var(--muted);
    max-width: 55ch;
    font-weight: 300;
  }

  .divider {
    max-width: 900px;
    margin: 2.5rem auto;
    height: 1px;
    background: var(--border);
  }

  /* ── CONTROLS ── */
  .controls {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
    animation: fadeUp 0.7s ease 0.2s both;
  }

  @media (max-width: 640px) {
    .controls { grid-template-columns: 1fr; }
  }

  .field-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  label {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--olive);
  }

  select, input[type="number"] {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--cream);
    font-family: var(--mono);
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    width: 100%;
    outline: none;
    transition: border-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
    border-radius: 0;
  }

  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238a9a52'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
  }

  select:focus, input:focus {
    border-color: var(--olive);
  }

  input[type="number"]::-webkit-inner-spin-button,
  input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; }

  .salary-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.3rem;
  }

  .preset-btn {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    padding: 0.3rem 0.55rem;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    cursor: pointer;
    transition: all 0.15s;
  }

  .preset-btn:hover {
    border-color: var(--olive);
    color: var(--olive-bright);
  }

  /* ── YEAR TOGGLE ── */
  .year-toggle {
    display: flex;
    border: 1px solid var(--border);
    overflow: hidden;
  }

  .year-btn {
    flex: 1;
    padding: 0.75rem 0.5rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    background: transparent;
    border: none;
    color: var(--muted);
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.05em;
  }

  .year-btn.active {
    background: var(--olive-dim);
    color: var(--olive-bright);
  }

  /* ── RESULTS ── */
  .results {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
    animation: fadeUp 0.5s ease 0.3s both;
  }

  .result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
  }

  @media (max-width: 700px) {
    .result-grid { grid-template-columns: 1fr; }
  }

  .stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s;
  }

  .stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--olive-dim);
    transition: background 0.2s;
  }

  .stat-card.highlight::before {
    background: var(--olive-bright);
  }

  .stat-label {
    font-family: var(--mono);
    font-size: 0.55rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.75rem;
  }

  .stat-value {
    font-family: var(--mono);
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 600;
    color: var(--cream);
    line-height: 1;
    margin-bottom: 0.4rem;
    transition: all 0.4s ease;
  }

  .stat-value.defense { color: var(--olive-bright); }

  .stat-sub {
    font-family: var(--serif);
    font-size: 0.8rem;
    color: var(--muted);
    font-style: italic;
    font-weight: 300;
  }

  /* ── BIG VISUAL ── */
  .visualization {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2rem;
    margin-bottom: 1.5rem;
  }

  .viz-header {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .bar-container {
    margin-bottom: 1.2rem;
  }

  .bar-label-row {
    display: flex;
    justify-content: space-between;
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--muted);
    margin-bottom: 0.4rem;
  }

  .bar-label-row .bar-pct {
    color: var(--cream);
  }

  .bar-track {
    height: 8px;
    background: var(--border);
    position: relative;
    overflow: hidden;
  }

  .bar-fill {
    height: 100%;
    transition: width 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    position: relative;
  }

  .bar-fill.defense-bar { background: var(--olive-bright); }
  .bar-fill.ss-bar { background: #6b8ec4; }
  .bar-fill.medicare-bar { background: #c47a6b; }
  .bar-fill.interest-bar { background: #8a7a5a; }
  .bar-fill.other-bar { background: #5a5a4a; }

  /* ── ANALOGY BLOCK ── */
  .analogy-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 3px solid var(--olive);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .analogy-header {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--olive);
    margin-bottom: 1rem;
  }

  .analogies {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
  }

  .analogy-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
  }

  .analogy-icon {
    font-size: 1.4rem;
  }

  .analogy-text {
    font-size: 0.8rem;
    color: var(--muted);
    font-style: italic;
    font-weight: 300;
    line-height: 1.4;
  }

  .analogy-amount {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--olive-bright);
  }

  /* ── BRACKET TABLE ── */
  .bracket-table {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .bracket-table h3 {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 1rem;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--mono);
    font-size: 0.75rem;
  }

  th {
    text-align: left;
    padding: 0.5rem 0.75rem;
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
  }

  td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid #1e2015;
    color: var(--muted);
  }

  tr.active-bracket td {
    color: var(--olive-bright);
    background: rgba(138, 154, 82, 0.06);
  }

  td.rate { color: var(--cream); }

  /* ── SOURCES ── */
  .sources {
    border-top: 1px solid var(--border);
    padding: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
  }

  .sources h4 {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.75rem;
  }

  .sources ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
  }

  .sources li {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--muted);
    display: flex;
    gap: 0.5rem;
    align-items: baseline;
  }

  .sources li::before {
    content: '→';
    color: var(--olive-dim);
    flex-shrink: 0;
  }

  .sources a {
    color: var(--olive);
    text-decoration: none;
    transition: color 0.15s;
  }
  .sources a:hover { color: var(--olive-bright); }

  /* ── METHODOLOGY NOTE ── */
  .method-note {
    max-width: 900px;
    margin: 0 auto;
    padding: 1rem 2rem;
    font-size: 0.75rem;
    color: var(--muted);
    font-style: italic;
    font-weight: 300;
    line-height: 1.6;
    border-top: 1px solid var(--border);
  }

  /* ── ANIMATIONS ── */
  @keyframes fadeDown {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .flash {
    animation: numFlash 0.35s ease;
  }
  @keyframes numFlash {
    0%   { opacity: 0.3; }
    100% { opacity: 1; }
  }

  /* ── COMPARE CALLOUT ── */
  .compare-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    margin-bottom: 1.5rem;
  }

  .compare-cell {
    background: var(--surface);
    padding: 1.25rem 1.5rem;
  }

  .compare-cell.year-label {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.4rem;
  }

  .compare-value {
    font-family: var(--mono);
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1;
  }

  .compare-value.fy25 { color: var(--olive); }
  .compare-value.fy26 { color: var(--red); }

  .compare-sub {
    font-family: var(--serif);
    font-size: 0.75rem;
    color: var(--muted);
    font-style: italic;
    margin-top: 0.3rem;
  }

  @media (max-width: 640px) {
    .hero { padding: 2.5rem 1.5rem 1.5rem; }
    .controls, .results { padding-left: 1.5rem; padding-right: 1.5rem; }
    .compare-row { grid-template-columns: 1fr; }
  }