:root {
  --night: #0b1622;
  --night-2: #112233;
  --night-3: #1a2f45;
  --frost: #e9f2f8;
  --snow: #f7fafc;
  --ice: #9fd3f0;
  --ice-strong: #5bb4e5;
  --pine: #2e5e4e;
  --ember: #e8a25c;
  --text: #dbe7f0;
  --text-dim: #93a9bb;
  --ink: #102030;
  --ink-dim: #4d6273;
  --line-dark: rgba(255, 255, 255, .1);
  --line-light: #d9e4ec;
  --error: #c2453b;
  --r: 10px;
  --sans: "Avenir Next", Avenir, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --display: "Didot", "Bodoni 72", "Playfair Display", Georgia, "Times New Roman", serif;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--night);
  color: var(--text);
  font: 400 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--ice); }
a:hover { color: #fff; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 28px; }
.kicker { font-size: .75rem; letter-spacing: .22em; text-transform: uppercase; color: var(--ice); font-weight: 600; }
.display { font-family: var(--display); font-weight: 400; letter-spacing: -.01em; line-height: 1.08; margin: 0; }

/* Top bar */
.topbar { position: absolute; inset: 0 0 auto 0; z-index: 20; }
.topbar .container { display: flex; align-items: center; justify-content: space-between; height: 84px; }
.brand { display: flex; align-items: center; gap: 12px; color: #fff; text-decoration: none; font-family: var(--display); font-size: 1.45rem; }
.brand svg { width: 34px; height: 34px; }
.menu { display: flex; align-items: center; gap: 34px; }
.menu a { color: var(--text); text-decoration: none; font-size: .92rem; letter-spacing: .02em; }
.menu a:hover { color: #fff; }
.menu .pill { border: 1px solid rgba(255, 255, 255, .35); padding: 9px 18px; border-radius: 40px; }
.menu .pill:hover { border-color: #fff; }

/* Hero */
.hero { position: relative; min-height: 92vh; display: flex; align-items: flex-end; overflow: hidden; padding-top: 110px; }
.hero-art { position: absolute; inset: 0; }
.hero-art svg { width: 100%; height: 100%; }
.hero-content { position: relative; z-index: 2; padding-bottom: 120px; }
.hero h1 { font-size: clamp(2.8rem, 7vw, 5.6rem); color: #fff; max-width: 11ch; margin: 18px 0 22px; }
.hero p { max-width: 34rem; color: var(--text); font-size: 1.12rem; margin: 0 0 34px; }

/* Booking bar */
.booker {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr .8fr auto;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: 14px;
  overflow: hidden;
  max-width: 920px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.booker label { display: block; background: rgba(11, 22, 34, .82); padding: 14px 18px; }
.booker span { display: block; font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 4px; }
.booker select, .booker input {
  width: 100%;
  background: transparent;
  border: 0;
  color: #fff;
  font: inherit;
  font-size: .98rem;
  padding: 0;
  outline: none;
  color-scheme: dark;
}
.booker button {
  background: var(--ice);
  color: var(--ink);
  border: 0;
  font: 600 .95rem var(--sans);
  padding: 0 30px;
  cursor: pointer;
  transition: background .2s;
}
.booker button:hover { background: #fff; }
.booker-note { max-width: 920px; margin-top: 14px; font-size: .92rem; color: var(--ice); min-height: 1.6em; }

/* Sections */
.section { padding: 120px 0; }
.section-light { background: var(--snow); color: var(--ink); }
.section-light .kicker { color: var(--pine); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 56px; flex-wrap: wrap; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3.2rem); max-width: 16ch; margin-top: 12px; }
.section-head p { max-width: 30rem; margin: 0; color: var(--ink-dim); }

/* Cabins */
.cabins { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cabin { background: #fff; border-radius: 16px; overflow: hidden; border: 1px solid var(--line-light); display: flex; flex-direction: column; }
.cabin-art { aspect-ratio: 4 / 3; }
.cabin-art svg { width: 100%; height: 100%; }
.cabin-body { padding: 24px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.cabin h3 { font-family: var(--display); font-weight: 400; font-size: 1.6rem; margin: 0 0 6px; }
.cabin .meta { font-size: .88rem; color: var(--ink-dim); margin-bottom: 14px; }
.cabin p { margin: 0 0 20px; color: var(--ink-dim); font-size: .97rem; }
.cabin .price { margin-top: auto; display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--line-light); padding-top: 16px; }
.cabin .price b { font-size: 1.3rem; color: var(--ink); }
.cabin .price span { font-size: .85rem; color: var(--ink-dim); }

/* Features */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.feature svg { width: 36px; height: 36px; color: var(--ice); margin-bottom: 18px; }
.feature h3 { font-size: 1.05rem; color: #fff; margin: 0 0 8px; font-weight: 600; }
.feature p { margin: 0; color: var(--text-dim); font-size: .95rem; }

/* Seasons */
.seasons { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.season-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-light); }
.season-list li { display: grid; grid-template-columns: 9rem 1fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line-light); }
.season-list b { font-family: var(--display); font-weight: 400; font-size: 1.25rem; }
.season-list span { color: var(--ink-dim); }
.season-art { border-radius: 18px; overflow: hidden; }

/* Questions */
.qa { max-width: 760px; }
.qa details { border-bottom: 1px solid var(--line-dark); }
.qa summary { list-style: none; cursor: pointer; padding: 22px 0; font-size: 1.08rem; color: #fff; display: flex; justify-content: space-between; gap: 24px; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "↓"; color: var(--ice); transition: transform .2s; }
.qa details[open] summary::after { transform: rotate(180deg); }
.qa details p { margin: 0 0 22px; color: var(--text-dim); }

/* Footer */
.foot { border-top: 1px solid var(--line-dark); padding: 56px 0 40px; font-size: .9rem; color: var(--text-dim); }
.foot .container { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.foot h4 { color: #fff; font-weight: 600; font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; margin: 0 0 12px; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.foot a { color: var(--text-dim); text-decoration: none; }
.foot a:hover { color: #fff; }
.foot .legal { grid-column: 1 / -1; border-top: 1px solid var(--line-dark); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }

/* Portal (manage booking) */
.portal { min-height: 100vh; display: grid; grid-template-columns: 1fr minmax(380px, 520px); }
.portal-art { position: relative; overflow: hidden; }
.portal-art > svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.portal-art .brand { position: absolute; top: 34px; left: 40px; z-index: 2; }
.portal-panel { background: var(--snow); color: var(--ink); display: flex; flex-direction: column; justify-content: center; padding: 56px 52px; }
.portal-panel h1 { font-size: 2.4rem; margin: 10px 0 10px; }
.portal-panel .lede { color: var(--ink-dim); margin: 0 0 32px; }
.portal-panel .kicker { color: var(--pine); }
.tabs { display: flex; gap: 6px; background: #e6eef4; border-radius: 10px; padding: 4px; margin-bottom: 26px; }
.tabs button { flex: 1; border: 0; background: transparent; padding: 10px; border-radius: 8px; font: 500 .9rem var(--sans); color: var(--ink-dim); cursor: pointer; }
.tabs button[aria-selected="true"] { background: #fff; color: var(--ink); box-shadow: 0 1px 3px rgba(16, 32, 48, .12); }
.input { display: block; margin-bottom: 18px; }
.input span { display: block; font-size: .82rem; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.input input {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line-light);
  border-radius: var(--r);
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: #fff;
}
.input input:focus { outline: 2px solid var(--ice-strong); outline-offset: 0; border-color: transparent; }
.input input.bad { border-color: var(--error); }
.hint { font-size: .82rem; color: var(--ink-dim); margin: -10px 0 18px; }
.btn-solid {
  width: 100%;
  border: 0;
  border-radius: var(--r);
  background: var(--night-2);
  color: #fff;
  font: 600 1rem var(--sans);
  padding: 15px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
}
.btn-solid:hover { background: var(--night); }
.btn-solid:disabled { opacity: .65; cursor: default; }
.dots { display: inline-flex; gap: 4px; }
.dots i { width: 6px; height: 6px; border-radius: 50%; background: #fff; animation: blink 1s infinite both; }
.dots i:nth-child(2) { animation-delay: .15s; }
.dots i:nth-child(3) { animation-delay: .3s; }
@keyframes blink { 0%, 80%, 100% { opacity: .25; } 40% { opacity: 1; } }
.notice { display: none; border-radius: var(--r); padding: 13px 16px; font-size: .92rem; margin-bottom: 20px; border-left: 3px solid; }
.notice.on { display: block; }
.notice.err { background: #fcefed; border-color: var(--error); color: #8a2c24; }
.notice.inf { background: #e8f3fa; border-color: var(--ice-strong); color: #1d4e6e; }
.portal-foot { margin-top: 34px; font-size: .85rem; color: var(--ink-dim); }
.portal-foot a { color: var(--pine); }

/* Plain pages */
.plain { background: var(--snow); color: var(--ink); min-height: 100vh; }
.plain .topbar { position: static; background: var(--night); }
.plain article { max-width: 760px; padding: 72px 28px 96px; margin: 0 auto; }
.plain h1 { font-size: 2.6rem; margin: 10px 0 8px; }
.plain h2 { font-family: var(--display); font-weight: 400; font-size: 1.5rem; margin: 2em 0 .4em; }
.plain p, .plain li { color: var(--ink-dim); }
.plain a { color: var(--pine); }
.lost { min-height: 100vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: 40px 24px; }
.lost .num { font-family: var(--display); font-size: 7rem; color: var(--ice); line-height: 1; }
.lost h1 { font-size: 2rem; margin: 12px 0 10px; }
.lost p { color: var(--text-dim); max-width: 26rem; margin: 0 auto 28px; }
.lost a { display: inline-block; border: 1px solid rgba(255, 255, 255, .35); color: #fff; text-decoration: none; padding: 12px 24px; border-radius: 40px; }

@media (max-width: 1000px) {
  .booker { grid-template-columns: 1fr 1fr; }
  .booker button { grid-column: 1 / -1; padding: 16px; }
  .cabins, .features { grid-template-columns: 1fr 1fr; }
  .seasons { grid-template-columns: 1fr; }
  .menu a:not(.pill) { display: none; }
  .portal { grid-template-columns: 1fr; }
  .portal-art { display: none; }
}
@media (max-width: 620px) {
  .container { padding: 0 18px; }
  .section { padding: 80px 0; }
  .cabins, .features { grid-template-columns: 1fr; }
  .booker { grid-template-columns: 1fr; }
  .foot .container { grid-template-columns: 1fr; }
  .season-list li { grid-template-columns: 1fr; gap: 4px; }
  .portal-panel { padding: 40px 22px; }
}