:root {
  color-scheme: dark;
  --navy: #081b33;
  --blue: #10345e;
  --ice: #8de3f4;
  --mist: #ddeaf2;
  --pearl: #f8fbfd;
  --copper: #d99768;
  --ink: #102237;
  --line: rgba(141, 227, 244, .24);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--navy); }

body {
  margin: 0;
  color: var(--pearl);
  background: var(--navy);
  font-size: 16px;
  line-height: 1.5;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 10;
  left: 1rem;
  top: -4rem;
  padding: .7rem 1rem;
  background: var(--pearl);
  color: var(--navy);
  border-radius: .5rem;
}

.skip-link:focus { top: 1rem; }

.hero { min-height: min(860px, 100svh); padding: 1.25rem clamp(1.25rem, 5vw, 5.5rem) 3rem; overflow: hidden; }

.topline { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-bottom: clamp(2.5rem, 6vw, 5rem); }

.brand { display: flex; align-items: center; gap: .6rem; margin: 0; font-size: .78rem; font-weight: 720; letter-spacing: .025em; }

.brand span { display: grid; width: 1.9rem; height: 1.9rem; place-items: center; border: 1px solid var(--ice); border-radius: 50%; color: var(--ice); font-size: 1rem; }

.demo-label { margin: 0; color: var(--mist); font-size: .72rem; letter-spacing: .03em; text-align: right; }

.hero-grid { width: min(1280px, 100%); margin: 0 auto; display: grid; align-items: center; gap: clamp(2rem, 6vw, 7rem); }

.hero-copy { position: relative; z-index: 1; max-width: 630px; }

.location, .eyebrow { display: flex; align-items: center; gap: .55rem; margin: 0 0 1.1rem; color: var(--ice); font-size: .77rem; font-weight: 720; letter-spacing: .12em; text-transform: uppercase; }

.location span { width: .55rem; height: .55rem; border-radius: 50%; background: var(--copper); box-shadow: 0 0 0 .24rem rgba(217, 151, 104, .13); }

h1, h2, p { text-wrap: balance; }

h1 { max-width: 9.4ch; margin: 0; font-size: clamp(3.15rem, 8vw, 7.5rem); font-weight: 650; letter-spacing: -.04em; line-height: 1.06; }

.intro { max-width: 37rem; margin: 1.65rem 0 2rem; color: var(--mist); font-size: clamp(1rem, 1.55vw, 1.18rem); line-height: 1.65; }

.actions { display: grid; gap: .75rem; max-width: 28rem; }

.button { display: flex; align-items: center; justify-content: center; gap: .7rem; min-height: 3.75rem; padding: .75rem 1rem; border: 1px solid transparent; border-radius: .75rem; font-size: .98rem; font-weight: 740; text-align: center; text-decoration: none; transition: transform 180ms ease, background 180ms ease, border-color 180ms ease; }

.button svg { width: 1.25rem; height: 1.25rem; fill: currentColor; flex: none; }

.button-primary { color: var(--navy); background: var(--ice); }

.button-secondary { border-color: var(--line); background: rgba(16, 52, 94, .5); color: var(--pearl); }

.button-detail { display: block; margin-top: .05rem; font-size: .69rem; font-weight: 620; letter-spacing: .04em; opacity: .76; }

.button:hover { transform: translateY(-2px); }

.button-primary:hover { background: #b7eef8; }

.button-secondary:hover { border-color: var(--ice); background: var(--blue); }

.contact-note { margin: 1rem 0 0; color: var(--mist); font-size: .85rem; }

.contact-note a { color: var(--ice); font-weight: 700; text-underline-offset: .22em; }

.key-stage { position: relative; min-height: 270px; color: var(--ice); }

.key-stage::before { content: ""; position: absolute; inset: 15% 7%; border-radius: 50%; background: radial-gradient(circle, rgba(141, 227, 244, .16), transparent 64%); filter: blur(16px); }

.key-art { position: absolute; width: min(126vw, 610px); height: auto; top: 50%; left: 50%; transform: translate(-50%, -50%) rotate(-8deg); animation: key-breathe 7s ease-in-out infinite; }

.number-plaque { position: absolute; right: 0; bottom: .1rem; display: grid; gap: .2rem; padding: .85rem 1rem; border: 1px solid var(--line); border-radius: .65rem; background: rgba(8, 27, 51, .84); box-shadow: 0 1rem 3rem rgba(0, 0, 0, .2); backdrop-filter: blur(10px); }

.number-plaque span { color: var(--mist); font-size: .69rem; letter-spacing: .08em; text-transform: uppercase; }

.number-plaque strong { color: var(--ice); font-size: 1.05rem; letter-spacing: .025em; }

.quiet-section { display: grid; gap: 1rem; padding: clamp(3rem, 8vw, 7.5rem) clamp(1.25rem, 9vw, 12rem); color: var(--ink); background: var(--mist); }

.quiet-section .eyebrow { color: #28547b; }

h2 { max-width: 20ch; margin: 0; font-size: clamp(1.75rem, 3.5vw, 3.4rem); font-weight: 650; letter-spacing: -.035em; line-height: 1.1; }

.quiet-section > p { max-width: 38rem; margin: 0; color: #36516b; line-height: 1.75; }

footer { padding: 1.8rem 1.25rem; background: #061426; color: #b5c9d8; text-align: center; font-size: .78rem; }

footer p { margin: 0 auto; max-width: 56rem; }

:focus-visible { outline: 3px solid var(--copper); outline-offset: 4px; }

@keyframes key-breathe { 50% { transform: translate(-50%, -50%) rotate(-5deg) scale(1.025); } }

@media (min-width: 700px) {
  .actions { grid-template-columns: 1fr 1fr; max-width: 41rem; }
  .button { min-height: 4rem; }
  .quiet-section { grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); align-items: end; column-gap: 4rem; }
}

@media (min-width: 980px) {
  .hero { display: grid; grid-template-rows: auto 1fr; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(410px, .8fr); }
  .key-stage { min-height: 520px; }
  .number-plaque { right: 4%; bottom: 10%; }
}

@media (max-width: 359px) {
  .topline { align-items: flex-start; flex-direction: column; gap: .6rem; }
  .demo-label { display: block; text-align: left; font-size: .66rem; }
  h1 { font-size: 2.85rem; }
  .brand { font-size: .7rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}