/* GounaClean, editorial. Chaptered grammar: hard changes of ground, hairline rules, one accent per ground. */

@font-face { font-family: "Newsreader"; font-style: normal; font-weight: 200 800; font-display: swap;
  src: url(fonts/newsreader-latin-opsz-normal.woff2) format("woff2-variations"), url(fonts/newsreader-latin-opsz-normal.woff2) format("woff2"); }
@font-face { font-family: "Newsreader"; font-style: italic; font-weight: 200 800; font-display: swap;
  src: url(fonts/newsreader-latin-wght-italic.woff2) format("woff2-variations"), url(fonts/newsreader-latin-wght-italic.woff2) format("woff2"); }
@font-face { font-family: "Figtree"; font-style: normal; font-weight: 300 900; font-display: swap;
  src: url(fonts/figtree-latin-wght-normal.woff2) format("woff2-variations"), url(fonts/figtree-latin-wght-normal.woff2) format("woff2"); }

:root {
  --paper: #F5F0E6;  --sand: #ECE3D3;  --deep: #0B2B31;
  --ink: #15282C;    --soft: #4F615F;  --accent: #0B6B66;  --rule: rgba(21,40,44,.22);
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --sans: "Figtree", system-ui, sans-serif;
  --g: clamp(20px, 4.2vw, 64px);          /* gutter */
  --margin: clamp(0px, 5.5vw, 88px);      /* room for the folio rails */
  --section: clamp(4.5rem, 11vw, 9.5rem);
  --ease: cubic-bezier(.23, 1, .32, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html:focus-within { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--serif); font-size: clamp(1.0625rem, 1.02rem + .25vw, 1.25rem);
  line-height: 1.62; font-optical-sizing: auto; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-underline-offset: .22em; text-decoration-thickness: 1px; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
.ground-deep :focus-visible, .ground-deep:focus-visible { outline-color: #7FD6CF; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* language: both variants live in the DOM, one is shown */
html.show-en .t[lang="de"], html.show-de .t[lang="en"] { display: none; }

/* ---------- chapters and grounds ---------- */
.ch { position: relative; background: var(--bg, var(--paper)); color: var(--ink); padding: var(--section) calc(var(--g) + var(--margin)); }
.ch > .in { max-width: 1280px; margin: 0 auto; }
.ground-paper { --bg: var(--paper); }
.ground-sand  { --bg: var(--sand); }
.ground-deep  { --bg: var(--deep); --ink: #F1EADC; --soft: #A9BEBB; --accent: #7FD6CF; --rule: rgba(241,234,220,.26); }

h1, h2, h3 { font-family: var(--serif); font-weight: 400; margin: 0; text-wrap: balance; letter-spacing: -.02em; line-height: 1.02; }
h2 { font-size: clamp(2.3rem, 1.4rem + 4vw, 4.9rem); letter-spacing: -.028em; }
h3 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem); letter-spacing: -.015em; line-height: 1.12; }
em, i { font-style: italic; }
p { margin: 0; text-wrap: pretty; max-width: 62ch; }
.sans { font-family: var(--sans); }
.label { font-family: var(--sans); font-size: .75rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--soft); }

/* ---------- buttons and links ---------- */
.btn { display: inline-flex; align-items: center; gap: .6em; min-height: 48px; padding: .7em 1.5em; background: var(--ink); color: var(--paper);
  font: 600 .95rem/1 var(--sans); letter-spacing: .01em; text-decoration: none; border-radius: 2px; transition: transform .14s var(--ease), background-color .14s var(--ease); white-space: nowrap; }
.btn:active { transform: translateY(1px) scale(.985); }
.btn--accent { background: var(--accent); color: #fff; }
.link { font-family: var(--sans); font-weight: 600; font-size: .95rem; text-decoration: underline; padding: .6em 0; }
@media (hover: hover) and (pointer: fine) {
  .btn:hover { background: var(--accent); }
  .link:hover { color: var(--accent); }
}

/* ---------- masthead (not fixed) and folio rails (fixed) ---------- */
.mast { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.5rem calc(var(--g) + var(--margin)) 0; background: var(--paper); }
.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; font: 500 1.35rem/1 var(--serif); letter-spacing: -.01em; }
.brand svg { width: 26px; height: 26px; }
.brand b { font-weight: 700; }
.lang { display: inline-flex; border: 1px solid var(--rule); border-radius: 2px; }
.lang button { font: 600 .72rem/1 var(--sans); letter-spacing: .1em; padding: .8em .95em; min-width: 44px; min-height: 40px; background: none; border: 0; color: var(--soft); cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.mast-end { display: flex; align-items: center; gap: 1.5rem; }

.rail { position: fixed; top: 0; bottom: 0; z-index: 20; display: none; align-items: center; pointer-events: none; font: 600 .72rem/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--soft); transition: color .2s var(--ease); }
.rail span, .rail a { writing-mode: vertical-rl; pointer-events: auto; white-space: nowrap; }
.rail--l { left: clamp(14px, 2.4vw, 34px); }
.rail--l span { transform: rotate(180deg); }
.rail--r { right: clamp(14px, 2.4vw, 34px); }
.rail a { text-decoration: none; padding: .9em .7em; }
.rail a:hover { color: var(--accent); }
body.on-deep .rail { color: #A9BEBB; }
body.on-deep .rail a:hover { color: #7FD6CF; }
@media (min-width: 900px) { .rail { display: flex; } }

.tabbar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: .55rem var(--g) calc(.55rem + env(safe-area-inset-bottom)); background: var(--paper); border-top: 1px solid var(--rule); color: var(--soft);
  font: 600 .72rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; transition: background-color .2s var(--ease), color .2s var(--ease); }
.tabbar a { text-decoration: none; color: var(--ink); min-height: 40px; display: inline-flex; align-items: center; letter-spacing: .08em; }
body.on-deep .tabbar { background: var(--deep); color: #A9BEBB; border-color: rgba(241,234,220,.2); }
body.on-deep .tabbar a { color: #F1EADC; }
body { padding-bottom: 58px; }
@media (min-width: 900px) { .tabbar { display: none; } body { padding-bottom: 0; } }

/* ---------- title page ---------- */
.title { padding-top: clamp(3.5rem, 9vw, 8rem); padding-bottom: clamp(4rem, 9vw, 8rem); }
.dateline { font: 600 .75rem/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--soft); padding-bottom: 1.25rem; border-bottom: 1px solid var(--rule); margin-bottom: clamp(2rem, 5vw, 4rem); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.title h1 { font-size: clamp(2.8rem, 1.2rem + 7.4vw, 7rem); line-height: .98; letter-spacing: -.035em; max-width: 14.5ch; }
.title h1 em { color: var(--accent); }
.title-body { margin-top: clamp(2rem, 4.5vw, 3.75rem); display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--g); }
.title-body > div { grid-column: 1 / -1; }
.title-body p { font-size: clamp(1.15rem, 1rem + .6vw, 1.5rem); line-height: 1.45; color: var(--ink); max-width: 34ch; }
.cta-row { display: flex; align-items: center; flex-wrap: wrap; gap: .5rem 1.75rem; margin-top: 2rem; }
@media (min-width: 900px) { .title-body > div { grid-column: 5 / span 7; } }

/* ---------- I. dust ---------- */
.essay { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: var(--g); row-gap: 3rem; align-items: start; }
.essay h2 { grid-column: 1 / -1; max-width: 13ch; }
.essay-text { grid-column: 1 / -1; display: grid; gap: 1.6em; }
.essay-text p:first-child::first-line { font-variant-caps: all-small-caps; letter-spacing: .06em; }
.essay-text p { font-size: clamp(1.15rem, 1.05rem + .45vw, 1.4rem); }
.fig { margin: 0; }
.fig img { width: 100%; height: auto; }
.fig figcaption { font: 500 .82rem/1.5 var(--sans); color: var(--soft); margin-top: .8rem; max-width: 52ch; }
.fig figcaption a { color: inherit; }
.essay .fig { grid-column: 1 / -1; }
@media (min-width: 900px) {
  .essay h2 { grid-column: 1 / span 9; }
  .essay-text { grid-column: 1 / span 5; }
  .essay .fig { grid-column: 7 / span 6; margin-top: -4rem; }
}

/* ---------- II. water (peak) ---------- */
.ch-water { padding: 0; }
.peak { position: relative; height: 290vh; }
.stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: hidden; padding: 0 calc(var(--g) + var(--margin)); display: flex; flex-direction: column; justify-content: flex-end; }
.stage .label { position: absolute; top: clamp(1.75rem, 5vh, 3.5rem); left: calc(var(--g) + var(--margin)); color: var(--soft); }
.water { position: absolute; left: 0; right: 0; bottom: 0; top: 52%; background: #123C43; border-top: 1px solid rgba(127,214,207,.55); opacity: 0; will-change: opacity; }
.settle { position: relative; z-index: 1; margin: 0 0 clamp(5.5rem, 17vh, 11rem); max-width: 15ch; font-size: clamp(3rem, 1.2rem + 9vw, 9.25rem); line-height: .96; letter-spacing: -.035em; }
.settle em { color: var(--accent); }
.settle .w { display: inline-block; white-space: nowrap; }
.settle .c { display: inline-block; will-change: transform, opacity; }
.settle-note { position: absolute; z-index: 1; left: calc(var(--g) + var(--margin)); bottom: clamp(2.2rem, 7vh, 4.5rem); font-size: clamp(1.05rem, 1rem + .4vw, 1.3rem); color: var(--soft); max-width: 36ch; }
.method { padding: var(--section) calc(var(--g) + var(--margin)); }
.method .in { max-width: 1280px; margin: 0 auto; }
.method-text { font-size: clamp(1.7rem, 1.1rem + 2.4vw, 3.3rem); line-height: 1.16; letter-spacing: -.02em; max-width: 24ch; text-wrap: pretty; }
.method-text em { color: var(--accent); }
.method-note { margin-top: 3rem; font: 500 .85rem/1.55 var(--sans); color: var(--soft); max-width: 58ch; border-top: 1px solid var(--rule); padding-top: 1rem; }
@media (min-width: 900px) { .method-text { max-width: 22ch; margin-left: calc(100% / 12 * 3); } .method-note { margin-left: calc(100% / 12 * 3); } }

/* ---------- III. services ---------- */
.svc { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: var(--g); row-gap: 2.5rem; }
.svc-head { grid-column: 1 / -1; display: grid; gap: 1.5rem; margin-bottom: 1rem; }
.svc-head p { font-size: clamp(1.1rem, 1rem + .4vw, 1.3rem); }
.svc-head .label { color: var(--accent); }
.svc-stage { display: none; }
.svc-rows { grid-column: 1 / -1; list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.row { border-bottom: 1px solid var(--rule); padding: 1.6rem 0 1.8rem; transition: opacity .2s var(--ease); }
.row h3 { display: flex; align-items: baseline; flex-wrap: wrap; gap: .3rem 1rem; margin-bottom: .6rem; }
.row h3 small { font: italic 400 1rem/1 var(--serif); color: var(--accent); letter-spacing: 0; }
.row p { color: var(--soft); max-width: 50ch; }
.row figure { margin: 0 0 1.1rem; }
.row figure img { width: 100%; height: auto; aspect-ratio: 3/2; object-fit: cover; }
@media (min-width: 900px) {
  .svc-head { grid-column: 1 / -1; grid-template-columns: repeat(12, 1fr); column-gap: var(--g); }
  .svc-head h2 { grid-column: 1 / span 7; }
  .svc-head > div { grid-column: 9 / span 4; align-self: end; }
  .svc-stage { display: block; grid-column: 1 / span 5; position: sticky; top: 12vh; height: min(66vh, 640px); align-self: start; background: #D9CFBC; overflow: hidden; }
  .svc-stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity .26s var(--ease); }
  .svc-stage img.on { opacity: 1; }
  .svc-rows { grid-column: 7 / span 6; }
  .row figure { display: none; }
  .row { padding: 2rem 0 2.2rem; }
  .row h3 { color: var(--soft); transition: color .2s var(--ease); }
  .row.on h3 { color: var(--ink); }
}
@media (prefers-reduced-motion: reduce) { .svc-stage img, .row h3 { transition: none; } }

/* ---------- IV. booking ---------- */
.steps { list-style: none; margin: clamp(3rem, 6vw, 5rem) 0 0; padding: 0; display: grid; gap: clamp(2.5rem, 5vw, 4.5rem); }
.step { display: grid; grid-template-columns: 2.4rem 1fr; column-gap: 1rem; align-items: baseline; border-top: 1px solid var(--rule); padding-top: 1.4rem; }
.step .n { font: italic 400 1.5rem/1 var(--serif); color: var(--accent); }
.step h3 { font-size: clamp(1.9rem, 1.2rem + 2.8vw, 3.6rem); letter-spacing: -.025em; margin-bottom: .6rem; }
.step p { color: var(--soft); max-width: 46ch; }
@media (min-width: 900px) {
  .step { grid-template-columns: calc(100% / 12 * 1) 1fr; }
  .step:nth-child(2) { margin-left: calc(100% / 12 * 3); }
  .step:nth-child(3) { margin-left: calc(100% / 12 * 6); }
}

/* ---------- V. place ---------- */
.place { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: var(--g); row-gap: 3rem; }
.place-head { grid-column: 1 / -1; }
.place-head p { margin-top: 1.5rem; font-size: clamp(1.15rem, 1.05rem + .45vw, 1.4rem); }
.place .a, .place .b { grid-column: 1 / -1; }
.place .tag { display: inline-block; margin-top: 1.25rem; font: 600 .78rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); border-bottom: 1px solid currentColor; padding-bottom: .5em; }
@media (min-width: 900px) {
  .place-head { grid-column: 1 / span 5; }
  .place .a { grid-column: 7 / span 6; }
  .place .b { grid-column: 1 / span 12; }
  .place .b img { aspect-ratio: 21 / 9; object-fit: cover; width: 100%; }
}

/* ---------- VI. questions ---------- */
.faq-wrap { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: var(--g); row-gap: 2.5rem; }
.faq-wrap h2 { grid-column: 1 / -1; }
.faq { grid-column: 1 / -1; border-top: 1px solid var(--rule); }
details { border-bottom: 1px solid var(--rule); }
summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: baseline; gap: 1.5rem; padding: 1.4rem 0; min-height: 48px;
  font: 400 clamp(1.3rem, 1.1rem + 1vw, 1.9rem)/1.2 var(--serif); letter-spacing: -.01em; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font: 300 1.8rem/1 var(--sans); color: var(--accent); transition: transform .18s var(--ease); flex: none; }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--soft); padding: 0 3rem 1.6rem 0; }
@media (min-width: 900px) {
  .faq-wrap h2 { grid-column: 1 / span 4; position: sticky; top: 14vh; align-self: start; }
  .faq { grid-column: 6 / span 7; }
}

/* ---------- colophon (close) ---------- */
.close { padding-bottom: clamp(3rem, 6vw, 5rem); }
.close h2 { font-size: clamp(2.6rem, 1.2rem + 6vw, 6.4rem); max-width: 12ch; }
.close .run { margin-top: clamp(2rem, 4vw, 3.5rem); font-size: clamp(1.4rem, 1.05rem + 1.7vw, 2.4rem); line-height: 1.28; letter-spacing: -.012em; max-width: 30ch; }
.close .run a { text-decoration-thickness: 2px; text-decoration-color: var(--accent); }
.close .run a:hover { color: var(--accent); }
.colophon { margin-top: clamp(4rem, 9vw, 8rem); padding-top: 1.5rem; border-top: 1px solid var(--rule); display: grid; gap: 1.25rem 3rem; font: 500 .85rem/1.6 var(--sans); color: var(--soft); }
.colophon p { max-width: 62ch; }
.colophon a { color: var(--ink); }
@media (min-width: 900px) { .colophon { grid-template-columns: 1.1fr 1.4fr; } .colophon .wide { grid-column: 1 / -1; } }

/* ---------- reveals (hard-ish, short) ---------- */
html.js .rv { opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
html.js .rv.in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .rv { opacity: 1; transform: none; transition: none; }
}
@media print { .rail, .tabbar { display: none; } }