:root {
  color-scheme: dark;
  --ink: #071922;
  --panel: #0d2732;
  --line: rgba(220, 244, 246, .16);
  --text: #f4fbfc;
  --muted: #9db5bb;
  --sea: #43d6c5;
  --sun: #ffbd59;
  font-family: "Arial Narrow", "Aptos Narrow", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; }
body {
  color: var(--text);
  background:
    linear-gradient(rgba(67, 214, 197, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(67, 214, 197, .045) 1px, transparent 1px),
    radial-gradient(circle at 85% 12%, #174855 0, var(--ink) 43%);
  background-size: 44px 44px, 44px 44px, auto;
}

.shell { width: min(1120px, calc(100% - 40px)); min-height: 100vh; display: flex; flex-direction: column; margin: auto; padding: 30px 0 22px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 50px; height: 50px; display: grid; place-items: center; border-radius: 15px; color: #06201f; background: var(--sea); font-size: .86rem; font-weight: 900; letter-spacing: .04em; }
.brand > span:last-child { display: grid; }
.brand strong { font-size: 1.1rem; letter-spacing: .01em; }
.brand small { margin-top: 2px; color: var(--muted); font-size: .78rem; }

.intro { display: grid; grid-template-columns: 1.5fr .75fr; align-items: end; gap: 50px; margin: auto 0 56px; padding-top: 80px; }
.eyebrow { margin: 0 0 14px; color: var(--sea); font-size: .76rem; font-weight: 900; letter-spacing: .24em; }
h1 { margin: 0; font-size: clamp(3.1rem, 8.5vw, 7.4rem); font-weight: 850; line-height: .82; letter-spacing: -.065em; text-wrap: balance; }
.intro-copy { margin: 0; padding: 0 0 7px 18px; border-left: 3px solid var(--sun); color: #c9dadd; font-family: Arial, sans-serif; font-size: 1rem; line-height: 1.6; }

.floor-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.floor-card { min-height: 170px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 25px; padding: 25px; border: 1px solid var(--line); border-radius: 20px; color: var(--text); background: rgba(13, 39, 50, .78); text-decoration: none; backdrop-filter: blur(15px); }
.floor-number { color: var(--sea); font-size: 3.4rem; font-weight: 900; line-height: 1; letter-spacing: -.06em; }
.floor-copy { display: grid; gap: 5px; }
.floor-copy small { color: var(--sea); font-size: .68rem; font-weight: 900; letter-spacing: .16em; }
.floor-copy strong { font-size: 1.55rem; }
.floor-copy > span { color: var(--muted); font-family: Arial, sans-serif; font-size: .86rem; }
.enter { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; color: #08211f; background: var(--sea); font-size: 1.35rem; transition: transform 180ms ease, background 180ms ease; }
.available { transition: transform 180ms ease, border-color 180ms ease, background 180ms ease; }
.available:hover { transform: translateY(-4px); border-color: rgba(67, 214, 197, .62); background: #123541; }
.available:hover .enter { transform: rotate(45deg); background: #70eadc; }
.available:focus-visible { outline: 3px solid var(--sun); outline-offset: 4px; }
.upcoming { opacity: .55; }
.upcoming .floor-number, .upcoming .floor-copy small { color: var(--muted); }
.pulse { width: 12px; height: 12px; border-radius: 50%; background: var(--sun); box-shadow: 0 0 0 8px rgba(255, 189, 89, .1); }
footer { margin-top: 28px; color: #6f8d94; font-size: .66rem; font-weight: 800; letter-spacing: .2em; }

@media (max-width: 760px) {
  .shell { width: min(100% - 28px, 620px); padding-top: 20px; }
  .intro { grid-template-columns: 1fr; gap: 28px; margin: auto 0 38px; padding-top: 70px; }
  h1 { font-size: clamp(3.2rem, 18vw, 5.6rem); }
  .intro-copy { max-width: 500px; }
  .floor-grid { grid-template-columns: 1fr; }
  .floor-card { min-height: 138px; padding: 20px; gap: 16px; }
  .floor-number { font-size: 2.7rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; }
}