:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --ink: #1d2733;
  --muted: #5c6b7a;
  --line: #dbe3ec;
  --accent: #0b6e4f;
  --accent-soft: #e4f2ec;
  --sky: #2a6f97;
  --sky-soft: #e6f0f7;
  --gold: #b7791f;
  --gold-soft: #fbf1df;
  --danger: #a33c2e;
  --shadow: 0 12px 30px rgba(29, 39, 51, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --font: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  font-size: 16px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 12px;
}

.brand-mark svg {
  width: 30px;
  height: 30px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-text strong {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.75rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.hero {
  padding: 52px 0 30px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 30px;
  align-items: end;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 10px;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin: 0 0 16px;
  max-width: 820px;
}

.hero-lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--muted);
  margin: 0;
  max-width: 760px;
}

.hero-note {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--muted);
  font-size: 0.88rem;
  white-space: nowrap;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 20px;
  align-items: start;
  margin: 20px 0 44px;
}

.matrix-panel,
.side-panel,
.reference-card,
.save-note {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.matrix-panel {
  padding: 26px;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.panel-head h2 {
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  margin: 0;
}

.panel-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.button {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.88rem;
  font-weight: 650;
  cursor: pointer;
  transition: border-color 150ms ease, background 150ms ease, color 150ms ease;
}

.button:hover,
.button:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.button-quiet {
  background: var(--bg);
}

.profile-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}

.strip-label {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--muted);
  margin-right: 4px;
}

.chip {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  border-radius: 999px;
  padding: 7px 13px;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 150ms ease;
}

.chip:hover,
.chip:focus-visible,
.chip.active {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  outline: none;
}

.controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.9fr);
  gap: 24px;
}

.control-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.control-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) 32px;
  align-items: center;
  gap: 12px;
}

.control-name {
  font-size: 0.92rem;
  font-weight: 650;
  color: var(--ink);
}

.control-row output {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  text-align: right;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
  min-height: 30px;
}

.results {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.result-card {
  border-radius: var(--radius-sm);
  padding: 16px;
  border: 1px solid var(--line);
}

.qantas-card {
  background: var(--gold-soft);
  border-color: #e7d2a8;
}

.airnz-card {
  background: var(--sky-soft);
  border-color: #c8dae8;
}

.partner-card {
  background: var(--accent-soft);
  border-color: #c3e0d3;
}

.result-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.result-top h3 {
  font-size: 1rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.score {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.qantas-card .score { color: var(--gold); }
.airnz-card .score { color: var(--sky); }
.partner-card .score { color: var(--accent); }

.result-note {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.88rem;
}

.meter {
  height: 8px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  overflow: hidden;
}

.meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  transition: width 280ms ease;
}

.qantas-card .meter span { background: var(--gold); }
.airnz-card .meter span { background: var(--sky); }
.partner-card .meter span { background: var(--accent); }

.assumption-box {
  margin-top: 22px;
  padding: 14px 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--muted);
}

.assumption-box p {
  margin: 0;
}

.side-panel {
  padding: 24px;
  position: sticky;
  top: 90px;
}

.side-panel h2 {
  font-size: 1.25rem;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
}

.side-panel p {
  color: var(--muted);
  font-size: 0.93rem;
  margin: 0 0 16px;
}

.side-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.side-list li {
  font-size: 0.9rem;
  padding-left: 18px;
  position: relative;
}

.side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.side-note {
  font-size: 0.86rem;
  padding: 12px;
  background: var(--bg);
  border-radius: var(--radius-sm);
  margin: 0;
}

.reference {
  margin: 20px 0 44px;
}

.reference-head {
  max-width: 800px;
  margin-bottom: 24px;
}

.reference-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

.reference-head p:last-child {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0;
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.reference-card {
  padding: 24px;
  box-shadow: none;
}

.reference-card h3 {
  font-size: 1.2rem;
  letter-spacing: -0.015em;
  margin: 0 0 12px;
}

.reference-card p {
  color: var(--muted);
  margin: 0 0 14px;
  font-size: 0.95rem;
}

.reference-card p:last-child {
  margin-bottom: 0;
}

.mistake-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mistake-list li {
  color: var(--muted);
  font-size: 0.94rem;
  padding-left: 22px;
  position: relative;
}

.mistake-list li::before {
  content: "!";
  position: absolute;
  left: 0;
  top: 0.1em;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fbe9e7;
  color: var(--danger);
  font-size: 0.72rem;
  font-weight: 800;
  display: grid;
  place-items: center;
}

.reference-card details {
  border-top: 1px solid var(--line);
  padding: 12px 0;
}

.reference-card details:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.reference-card summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--ink);
  font-size: 0.95rem;
}

.reference-card summary:hover {
  color: var(--accent);
}

.reference-card details p {
  margin-top: 10px;
}

.save-note {
  padding: 26px;
  box-shadow: none;
  background: var(--accent-soft);
  border-color: #c3e0d3;
}

.save-note h2 {
  font-size: 1.35rem;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
}

.save-note p {
  color: var(--muted);
  margin: 0;
  max-width: 820px;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 30px 20px;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.88rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-inner p {
  margin: 0;
}

.footer-meta {
  margin-top: 8px;
  font-size: 0.8rem;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .side-panel {
    position: static;
  }

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

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

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

  .hero-note {
    flex-direction: row;
    flex-wrap: wrap;
    white-space: normal;
  }
}

@media (max-width: 640px) {
  main {
    padding: 0 14px 44px;
  }

  .header-inner,
  .footer-inner {
    padding-left: 14px;
    padding-right: 14px;
  }

  .matrix-panel,
  .reference-card,
  .save-note,
  .side-panel {
    padding: 18px;
  }

  .control-row {
    grid-template-columns: 1fr 42px;
    gap: 8px;
  }

  .control-row input[type="range"] {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .control-name {
    grid-column: 1;
    grid-row: 2;
  }

  .control-row output {
    grid-column: 2;
    grid-row: 2;
  }

  .panel-actions {
    width: 100%;
  }

  .panel-actions .button {
    flex: 1;
  }

  .site-nav {
    gap: 12px;
  }
}

@media print {
  .site-header,
  .site-footer,
  .panel-actions,
  .profile-strip {
    display: none;
  }

  body {
    background: #fff;
  }

  .matrix-panel,
  .side-panel,
  .reference-card,
  .save-note {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}



/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}