:root {
  --ink: #101827;
  --muted: #647184;
  --navy: #08121f;
  --gold: #d6a441;
  --paper: #f7f8f7;
  --white: #ffffff;
  --line: rgba(16, 24, 39, 0.13);
  --blue: #17324d;
  --green: #1f6f61;
  --shadow: 0 22px 60px rgba(8, 18, 31, 0.11);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid rgba(214, 164, 65, 0.92);
  outline-offset: 3px;
}

.hub-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 18px 18px;
  color: var(--white);
  background: var(--navy);
}

.hub-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.hub-brand span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.hub-header nav {
  display: none;
}

.hub-hero {
  display: grid;
  gap: 24px;
  padding: 44px 18px 28px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(8, 18, 31, 0.96), rgba(23, 50, 77, 0.84) 54%, rgba(8, 18, 31, 0.72)),
    url("assets/business-aviation-advisory-hero.png") center / cover;
}

.hub-hero-copy,
.hub-hero-panel,
.stage-section,
.need-section,
.resource-shell,
.review-section,
.source-copy {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: Georgia, "Times New Roman", serif;
  text-wrap: balance;
}

h1 {
  max-width: 760px;
  margin-bottom: 16px;
  font-size: clamp(40px, 11vw, 78px);
  line-height: 0.98;
}

.hub-hero p:not(.eyebrow) {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
  line-height: 1.58;
}

.hero-note {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.92) !important;
  font-weight: 800;
}

.hub-hero-panel {
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(12px);
}

.hub-hero-panel strong {
  font-size: 18px;
}

.hub-hero-panel span {
  color: rgba(255, 255, 255, 0.78);
}

.stage-section,
.need-section {
  padding: 34px 18px 0;
}

.section-heading.compact {
  margin-bottom: 16px;
}

.section-heading h2 {
  margin-bottom: 8px;
  font-size: clamp(28px, 8vw, 48px);
  line-height: 1.06;
}

.section-heading p:not(.eyebrow) {
  max-width: 760px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}

.stage-grid,
.need-grid {
  display: grid;
  gap: 10px;
}

.stage-card,
.need-card {
  display: grid;
  gap: 7px;
  width: 100%;
  min-height: 0;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  background: var(--white);
  text-align: left;
  box-shadow: 0 10px 28px rgba(8, 18, 31, 0.05);
  transition: border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.stage-card span,
.need-card span {
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stage-card strong,
.need-card strong {
  font-size: 17px;
  line-height: 1.18;
}

.stage-card small,
.need-card small {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.38;
}

.need-card em {
  margin-top: 4px;
  color: var(--blue);
  font-style: normal;
  font-size: 13px;
  font-weight: 900;
}

.stage-card.is-selected,
.need-card.is-selected {
  border-color: rgba(214, 164, 65, 0.78);
  box-shadow: 0 18px 42px rgba(8, 18, 31, 0.12);
  transform: translateY(-1px);
}

.resource-preview-section {
  padding: 34px 18px;
}

.resource-shell {
  padding: 22px;
  border: 1px solid rgba(23, 50, 77, 0.16);
  border-radius: 18px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.resource-title {
  max-width: 820px;
  margin-bottom: 20px;
}

.resource-title h2 {
  margin-bottom: 10px;
  font-size: clamp(30px, 8vw, 52px);
  line-height: 1.05;
}

.resource-title p:not(.eyebrow) {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.resource-panel {
  display: none;
}

.resource-panel.is-active {
  display: block;
}

.resource-empty {
  padding: 18px;
  border: 1px dashed rgba(16, 24, 39, 0.18);
  border-radius: 14px;
  background: #fbfcfd;
}

.resource-empty strong {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 18px;
}

.resource-empty p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.split-panel {
  display: grid;
  gap: 16px;
}

.split-panel > div,
.split-panel > aside {
  padding: 18px;
  border: 1px solid rgba(16, 24, 39, 0.1);
  border-radius: 14px;
  background: #fbfcfd;
}

.split-panel h3 {
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 24px;
  line-height: 1.08;
}

.split-panel p,
.split-panel li {
  color: var(--muted);
  line-height: 1.62;
}

.split-panel a,
.source-note a {
  color: var(--blue);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.source-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(16, 24, 39, 0.1);
  color: #536173 !important;
  font-size: 13px;
  line-height: 1.5 !important;
}

.split-panel ul {
  margin: 0;
  padding-left: 20px;
}

.requirement-table,
.provider-preview,
.pathway-grid,
.mini-checker {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.requirement-table div,
.provider-preview div,
.pathway-grid div,
.mini-checker label {
  display: grid;
  gap: 6px;
  padding: 14px;
  border: 1px solid rgba(16, 24, 39, 0.1);
  border-radius: 12px;
  background: var(--white);
}

.requirement-table span,
.provider-preview span,
.pathway-grid span,
.mini-checker label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.requirement-table strong,
.provider-preview strong,
.pathway-grid strong {
  color: var(--ink);
  font-size: 15px;
  line-height: 1.38;
}

.mini-checker input,
.mini-checker select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  background: var(--white);
  padding: 0 12px;
}

.review-section {
  display: grid;
  gap: 18px;
  align-items: center;
  margin-bottom: 34px;
  padding: 26px 18px;
  border-radius: 18px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(214, 164, 65, 0.16), transparent 56%),
    var(--navy);
}

.review-section h2 {
  margin-bottom: 10px;
  font-size: clamp(30px, 8vw, 50px);
}

.review-section p:not(.eyebrow) {
  max-width: 700px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.6;
}

.primary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  width: fit-content;
  padding: 0 20px;
  border: 0;
  border-radius: 12px;
  color: var(--navy);
  background: var(--gold);
  cursor: pointer;
  font-weight: 900;
}

.source-section {
  padding: 0 18px 48px;
}

.source-copy {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
}

.source-copy h2 {
  margin-bottom: 10px;
  font-size: clamp(26px, 7vw, 40px);
}

.source-copy p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.72;
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.source-links a {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--blue);
  background: #f4f6f8;
  font-size: 13px;
  font-weight: 800;
}

.hub-footer {
  display: grid;
  gap: 8px;
  padding: 24px 18px;
  color: rgba(255, 255, 255, 0.74);
  background: var(--navy);
}

.hub-footer strong {
  color: var(--white);
}

.hub-footer span {
  max-width: 900px;
  font-size: 13px;
  line-height: 1.55;
}

@media (max-width: 640px) {
  .hub-hero {
    gap: 14px;
    padding-top: 30px;
    padding-bottom: 22px;
  }

  h1 {
    margin-bottom: 12px;
    font-size: 35px;
    line-height: 1;
  }

  .hub-hero p:not(.eyebrow) {
    font-size: 16px;
    line-height: 1.42;
  }

  .hub-hero-panel {
    display: none;
  }

  .stage-section,
  .need-section {
    padding-top: 22px;
  }

  .section-heading.compact {
    margin-bottom: 10px;
  }

  .section-heading h2 {
    margin-bottom: 6px;
    font-size: 26px;
  }

  .section-heading p:not(.eyebrow) {
    font-size: 14px;
    line-height: 1.38;
  }

  .stage-grid,
  .need-grid {
    gap: 8px;
  }

  .stage-card {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 4px 10px;
    padding: 11px 12px;
    border-radius: 12px;
  }

  .need-card {
    gap: 5px;
    padding: 12px 14px;
    border-radius: 12px;
  }

  .stage-card span {
    grid-row: span 2;
    align-self: center;
    min-width: 38px;
    font-size: 11px;
  }

  .need-card span {
    font-size: 11px;
  }

  .stage-card strong,
  .need-card strong {
    font-size: 15px;
    line-height: 1.18;
  }

  .stage-card small,
  .need-card small {
    display: none;
  }

  .need-card em {
    margin-top: 0;
    font-size: 12px;
  }

  .resource-preview-section {
    padding-top: 26px;
  }
}

@media (min-width: 760px) {
  .hub-header {
    padding: 20px clamp(24px, 5vw, 72px);
  }

  .hub-header nav {
    display: flex;
    gap: 18px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 14px;
  }

  .hub-hero {
    grid-template-columns: minmax(0, 1fr) 310px;
    align-items: end;
    padding: 74px clamp(24px, 5vw, 72px) 48px;
  }

  .stage-section,
  .need-section {
    padding-left: clamp(24px, 5vw, 72px);
    padding-right: clamp(24px, 5vw, 72px);
  }

  .stage-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .need-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .resource-preview-section,
  .source-section {
    padding-left: clamp(24px, 5vw, 72px);
    padding-right: clamp(24px, 5vw, 72px);
  }

  .resource-shell {
    padding: clamp(28px, 4vw, 46px);
  }

  .split-panel {
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  }

  .review-section {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 34px clamp(28px, 5vw, 52px);
  }

  .hub-footer {
    grid-template-columns: auto 1fr;
    padding: 28px clamp(24px, 5vw, 72px);
  }
}

@media (min-width: 1040px) {
  .hub-hero {
    min-height: 420px;
  }

  .stage-card,
  .need-card {
    padding: 18px;
  }

  .need-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}