@view-transition { navigation: auto; }
@font-face { font-family: "Archivo"; src: url("../fonts/archivo-latin.woff2") format("woff2"); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("../fonts/jetbrains-mono-latin.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }

:root {
  --red: #d7141c; --red-on-dark: #f0484e; --ink: #0d0c0c; --paper: #f3f1ee; --white: #fff;
  --f-sans: "Archivo", "Helvetica Neue", Arial, sans-serif; --f-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --pad: clamp(18px, 3.4vw, 56px); --ease: cubic-bezier(.16, 1, .3, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  overflow: hidden; color: var(--white); font-family: var(--f-sans); -webkit-font-smoothing: antialiased;
  /* the sky is mixed from the real hour in Vienna (see wien3d.js) */
  background: linear-gradient(var(--sky-top, #12141b) 0%, var(--sky-low, #0d0f16) 62%, #0a0b0f 100%);
  transition: background 3s linear;
}
a { color: inherit; }
.w3d { position: fixed; z-index: 1; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; outline: none; }
/* the stars are painted behind the city (see wien3d.js): the canvas above them is transparent wherever
   the ground is not, and the sky palette fades them in as the evening comes on */
.w3d-skywrap { position: fixed; z-index: 0; left: 0; top: 0; opacity: 0; pointer-events: none; transition: opacity 3s linear; will-change: transform; }
.w3d-sky { position: absolute; left: 0; top: 0; display: block; }
/* The bright stars breathe on their own: the compositor runs this, not the drawing loop. Each one is a
   small upright cross of light with a hard core — the shape a bright star takes in a photograph — and it
   is kept deliberately small, so it reads as a star and never as a sparkle. */
.w3d-sky i {
  position: absolute; display: block;
  background:
    radial-gradient(circle closest-side, rgba(255, 255, 255, 1) 0 20%, rgba(226, 236, 255, .42) 44%, rgba(226, 236, 255, 0) 76%) center / 40% 40% no-repeat,
    linear-gradient(90deg, rgba(226, 236, 255, 0) 0, rgba(226, 236, 255, .8) 50%, rgba(226, 236, 255, 0) 100%) center / 100% 1px no-repeat,
    linear-gradient(180deg, rgba(226, 236, 255, 0) 0, rgba(226, 236, 255, .8) 50%, rgba(226, 236, 255, 0) 100%) center / 1px 100% no-repeat;
  animation: w3d-twinkle 3s ease-in-out infinite alternate;
}
@keyframes w3d-twinkle {
  from { opacity: calc(var(--a) * .3); transform: scale(.72); }
  to { opacity: var(--a); transform: scale(1.1); }
}
@media (prefers-reduced-motion: reduce) { .w3d-sky i { animation: none; opacity: var(--a); } }
.w3d.is-dragging { cursor: grabbing; }
.w3d.is-hover { cursor: pointer; }

.w3d-bar { position: fixed; z-index: 5; inset: 0 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 18px var(--pad); pointer-events: none; }
.w3d-bar > * { pointer-events: auto; }
.w3d-sign img { display: block; width: clamp(150px, 14vw, 220px); height: auto; }
.w3d-back {
  display: inline-flex; align-items: center; gap: 10px; min-height: 42px; padding: 0 18px; border-radius: 99px; text-decoration: none;
  font: 700 .74rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase; box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .35);
  transition: background-color .3s, color .3s;
}
.w3d-back::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--red); transition: transform .5s var(--ease); }
.w3d-back:hover, .w3d-back:focus-visible { color: var(--ink); background: var(--white); }
.w3d-back:hover::before { transform: translateX(-4px); }

.w3d-intro { position: fixed; z-index: 4; left: var(--pad); bottom: clamp(24px, 5vh, 56px); max-width: 42ch; pointer-events: none; }
.w3d-eyebrow { display: inline-flex; align-items: center; gap: 10px; margin: 0 0 14px; font: 700 .72rem var(--f-mono); letter-spacing: .16em; text-transform: uppercase; }
.w3d-eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--red); }
.w3d-intro h1 { margin: 0; font-size: clamp(3rem, 7.4vw, 8.4rem); font-weight: 880; font-stretch: 62%; line-height: .84; letter-spacing: -.035em; opacity: 0; transform: translateY(30px); animation: w3d-rise 1.2s var(--ease) 1.3s forwards; }
.w3d-hint { margin: 18px 0 0; color: rgba(255, 255, 255, .6); font: .74rem var(--f-mono); letter-spacing: .08em; opacity: 0; animation: w3d-rise 1s var(--ease) 1.9s forwards; }
.w3d-hint__touch { display: none; }
@media (pointer: coarse) { .w3d-hint__fine { display: none; } .w3d-hint__touch { display: inline; } }
@keyframes w3d-rise { to { opacity: 1; transform: none; } }
.dot { display: inline-block; width: .2em; height: .2em; margin-left: .045em; border-radius: 50%; background: var(--red); }
.nw { white-space: nowrap; }

.w3d-list { position: fixed; z-index: 4; right: var(--pad); top: 50%; translate: 0 -50%; }
.w3d-list ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.w3d-list button {
  display: grid; grid-template-columns: 30px auto; align-items: baseline; gap: 8px; width: 100%; padding: 7px 12px 7px 10px;
  color: rgba(255, 255, 255, .72); background: transparent; border: 0; border-radius: 99px; cursor: pointer; text-align: left;
  font: 700 .95rem var(--f-sans); font-stretch: 86%; opacity: 0; transform: translateX(16px);
  transition: color .25s, background-color .25s, opacity .6s var(--ease), transform .6s var(--ease);
}
.w3d-list.is-in button { opacity: 1; transform: none; }
.w3d-list button small { font: 700 .7rem var(--f-mono); color: var(--red-on-dark); }
.w3d-list button:hover, .w3d-list button:focus-visible, .w3d-list button.is-hot { color: var(--ink); background: var(--white); outline: none; }
.w3d-list button.is-hot small, .w3d-list button:hover small { color: var(--red); }

.w3d-labels { position: fixed; inset: 0; z-index: 2; pointer-events: none; }
.w3d-label {
  position: absolute; left: 0; top: 0; display: flex; align-items: center; gap: 6px; white-space: nowrap;
  font: 700 .68rem var(--f-mono); letter-spacing: .08em; color: var(--white); will-change: transform; opacity: 0; transition: opacity .6s;
}
.w3d-label b { display: grid; place-items: center; min-width: 26px; height: 20px; padding: 0 6px; border-radius: 99px; background: var(--red); color: var(--white); }
.w3d-label span { opacity: 0; transform: translateX(-4px); transition: opacity .3s, transform .3s var(--ease); text-shadow: 0 1px 8px rgba(0, 0, 0, .9); }
.w3d-label.is-on { opacity: 1; }
.w3d-label.is-hot span { opacity: 1; transform: none; }
.w3d-label--mark { color: rgba(255, 255, 255, .55); font-weight: 400; letter-spacing: .18em; font-size: .6rem; }
.w3d-label--mark::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: rgba(255, 255, 255, .6); }

.w3d-tip { position: fixed; z-index: 3; left: 0; top: 0; margin: 0; padding: 6px 12px; border-radius: 99px; background: rgba(13, 12, 12, .8); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .2); font: .72rem var(--f-mono); letter-spacing: .06em; pointer-events: none; opacity: 0; transition: opacity .2s; }
.w3d-tip.is-on { opacity: 1; }

/* while the card is only a hover preview it must not catch the mouse: otherwise the pointer lands on the
   card, leaves the canvas, the card hides, the pointer is back on the canvas — and the card flickers */
.w3d-cardwrap { position: fixed; z-index: 6; left: 0; top: 0; will-change: transform; pointer-events: none; }
.w3d-cardwrap.is-pinned { pointer-events: auto; }
.w3d-cardwrap[hidden] { display: none; }
.w3d-card {
  position: static; width: min(348px, 84vw); padding: 20px 22px 18px;
  color: var(--ink); background: var(--paper); border-radius: 16px; border-top: 5px solid var(--red);
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .7);
  transform-origin: 50% 100%; animation: w3d-pop .45s var(--ease);
}
@keyframes w3d-pop { from { opacity: 0; transform: translateY(10px) scale(.94); } }
.w3d-card__nr { margin: 0; font: 700 .72rem var(--f-mono); letter-spacing: .14em; color: #b41412; }
.w3d-card__name { margin: 4px 0 0; font-size: 2rem; font-weight: 880; font-stretch: 66%; line-height: .95; }
.w3d-card__tag { margin: 6px 0 0; font: 700 .7rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: #b41412; }
.w3d-card__tag:empty { display: none; }
.w3d-card__addr { margin: 10px 0 14px; color: #3a3633; }
.w3d-card__go { display: inline-flex; align-items: center; gap: 8px; font-weight: 750; text-decoration: none; background: linear-gradient(#d7141c, #d7141c) 0 100% / .85em 2px no-repeat; padding-bottom: 3px; transition: background-size .6s var(--ease); }
.w3d-card__go::after { content: ""; width: .38em; height: .38em; border-radius: 50%; background: var(--red); transition: transform .5s var(--ease); }
.w3d-card__go:hover { background-size: 100% 2px; }
.w3d-card__go:hover::after { transform: translateX(.35em); }

.w3d-credit { position: fixed; z-index: 4; right: var(--pad); bottom: 14px; margin: 0; color: rgba(255, 255, 255, .45); font: .62rem var(--f-mono); letter-spacing: .06em; }
.w3d-noscript { position: fixed; inset: 40% var(--pad) auto; z-index: 9; font-size: 1.2rem; }

@media (max-width: 900px) {
  .w3d-list { display: none; }
  .w3d-intro h1 { font-size: 3.4rem; }
  .w3d-credit { left: var(--pad); right: auto; bottom: 8px; }
  .w3d-intro { bottom: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  .w3d-intro h1, .w3d-hint { animation: none; opacity: 1; transform: none; }
  .w3d-card { animation: none; }
}
.w3d-intro { transition: opacity .6s; }
.is-focus .w3d-intro { opacity: .12; }

/* opened as a file (file://) the browser blocks the map's scripts: after a moment say how to open it */
.w3d-fallback { position: fixed; inset: 38% var(--pad) auto; z-index: 9; max-width: 46ch; margin: 0; font-size: 1.1rem; line-height: 1.5; opacity: 0; animation: w3d-rise .6s 2.5s forwards; }
.is-live .w3d-fallback { display: none; }
/* on low screens the list would run into the header: it stays, but smaller */
@media (max-height: 760px) and (min-width: 901px) {
  .w3d-list button { padding: 3px 12px 3px 10px; font-size: .82rem; }
}
@media (max-height: 560px) and (min-width: 901px) { .w3d-list { display: none; } }
/* the chosen point turns white on the map; its number pill follows */
.w3d-label b { transition: background-color .3s, color .3s; }
.w3d-label.is-hot b { background: var(--white); color: var(--red); }

/* the hint is one line again */
.w3d-hint { white-space: nowrap; }

/* the credit line is required by the map licence, so it stays — but quietly */
.w3d-credit { opacity: .55; transition: opacity .3s; }
.w3d-credit:hover { opacity: 1; }
.w3d-credit a { text-decoration: none; }
.w3d-credit a:hover { text-decoration: underline; }

/* the landmark names hang above their building; a dark halo keeps them readable over any geometry */
.w3d-label--mark { text-shadow: 0 1px 10px rgba(0, 0, 0, .95), 0 0 4px rgba(0, 0, 0, .9); transform-origin: left center; }
.w3d-label--mark::before { box-shadow: 0 0 6px rgba(0, 0, 0, .9); }

/* a landmark name stands centred above its building, never beside it */
.w3d-label--mark { justify-content: center; }


/* ================================================================ free hand */

/* the city sits in the dark: a soft vignette pulls the eye to the middle */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(130% 95% at 50% 45%, transparent 62%, rgba(0, 0, 0, .3) 100%);
}

/* whether the shops are open right now, live in the header */
.w3d-live {
  display: inline-flex; align-items: center; gap: 10px; margin: 0; padding: 8px 16px;
  border-radius: 99px; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .18);
  color: rgba(255, 255, 255, .72); font: .72rem var(--f-mono); letter-spacing: .06em;
}
.w3d-live i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, .35); }
.w3d-live.is-open { color: var(--white); }
.w3d-live.is-open i { background: var(--red); animation: w3d-live-beat 1.8s ease-in-out infinite; }
@keyframes w3d-live-beat { 50% { transform: scale(1.6); opacity: .55; } }

/* the tour button */
.w3d-tour {
  position: fixed; z-index: 5; right: var(--pad); bottom: clamp(20px, 4vh, 44px);
  display: inline-flex; align-items: center; gap: 12px; min-height: 46px; padding: 0 22px;
  color: var(--white); background: transparent; border: 0; border-radius: 99px; cursor: pointer;
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .35);
  font: 700 .74rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase;
  transition: background-color .3s, color .3s, box-shadow .3s;
}
.w3d-tour i { width: 0; height: 0; border-left: 9px solid currentColor; border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.w3d-tour[aria-pressed="true"] i { width: 9px; height: 11px; border: 0; background: currentColor; }
.w3d-tour:hover, .w3d-tour:focus-visible { color: var(--ink); background: var(--white); box-shadow: none; outline: none; }
.w3d-tour[aria-pressed="true"] { color: var(--white); background: var(--red); box-shadow: none; }

/* during the tour the writing steps aside */
.is-touring .w3d-intro { opacity: .08; }

/* on a phone the list becomes a strip along the bottom edge */
@media (max-width: 900px) {
  .w3d-list {
    display: block; position: fixed; right: 0; left: 0; top: auto; bottom: 0; translate: none;
    padding: 10px var(--pad) calc(10px + env(safe-area-inset-bottom));
    background: linear-gradient(to top, rgba(13, 12, 12, .92), rgba(13, 12, 12, 0));
  }
  .w3d-list ol { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; scroll-snap-type: x mandatory; }
  .w3d-list ol::-webkit-scrollbar { display: none; }
  .w3d-list li { scroll-snap-align: start; }
  .w3d-list button { width: auto; white-space: nowrap; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22); }
  .w3d-tour { bottom: 84px; right: 50%; translate: 50% 0; }
  .w3d-card { bottom: 96px; }
  .w3d-live { display: none; }
}

/* the status pill travels with the back link, so it never lands on a point number */
.w3d-bar__right { display: flex; align-items: center; gap: 14px; pointer-events: auto; }

@media (max-width: 900px) {
  /* room for the strip of points: the writing moves up, the tour button sits over it on the right */
  .w3d-intro { bottom: 128px; }
  .w3d-tour { right: var(--pad); left: auto; translate: none; bottom: 92px; min-height: 40px; padding: 0 16px; font-size: .68rem; }
  .w3d-card { bottom: 150px; }
}


/* the two tools sit together in the corner */
.w3d-tools { position: fixed; z-index: 5; right: var(--pad); bottom: clamp(30px, 5vh, 54px); display: flex; gap: 10px; }
.w3d-tour, .w3d-near { position: static; }
.w3d-near {
  display: inline-flex; align-items: center; gap: 10px; min-height: 46px; padding: 0 20px;
  color: var(--white); background: transparent; border: 0; border-radius: 99px; cursor: pointer;
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .22);
  font: 700 .74rem var(--f-mono); letter-spacing: .12em; text-transform: uppercase;
  transition: background-color .3s, color .3s, box-shadow .3s;
}
.w3d-near i { width: 9px; height: 9px; border-radius: 50%; box-shadow: inset 0 0 0 2px currentColor; }
.w3d-near:hover, .w3d-near:focus-visible { color: var(--ink); background: var(--white); box-shadow: none; outline: none; }
.w3d-near:disabled { opacity: .55; cursor: progress; }
.w3d-card__near { margin: -8px 0 12px; color: #b41412; font: 700 .72rem var(--f-mono); letter-spacing: .08em; }

@media (max-width: 900px) {
  .w3d-tools { right: var(--pad); left: var(--pad); bottom: 92px; justify-content: flex-end; flex-wrap: wrap; }
  .w3d-near, .w3d-tour { min-height: 40px; padding: 0 14px; font-size: .66rem; }
}


/* the card says whether the shops are open at this moment */
.w3d-card__open {
  display: inline-flex; align-items: center; gap: 8px; margin: -6px 0 12px;
  color: #6a635c; font: 700 .7rem var(--f-mono); letter-spacing: .1em; text-transform: uppercase;
}
.w3d-card__open::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #b9b2aa; }
.w3d-card__open.is-open { color: #2f7d4f; }
.w3d-card__open.is-open::before { background: #2f7d4f; }

/* a thin leader ties the name to its own building, so it can never look like a neighbour's */
.w3d-label--mark { flex-direction: column; gap: 3px; }
.w3d-label--mark::after { content: ""; width: 1px; height: 11px; background: linear-gradient(rgba(255, 255, 255, .55), rgba(255, 255, 255, 0)); }
.w3d-label--mark::before { order: -1; }
/* of two overlapping names the one further away steps back */
.w3d-label--mark.is-back { opacity: .34; }
.w3d-label--mark.is-back.is-on { opacity: .34; }


/* (the old line badges are gone; the stops carry the lines now) */
/* unused */
.w3d-ubahn {
  position: absolute; left: 0; top: 0; display: grid; place-items: center;
  min-width: 22px; height: 18px; padding: 0 5px; border-radius: 4px;
  color: #fff; font: 800 .64rem var(--f-mono); letter-spacing: .04em;
  box-shadow: 0 1px 6px rgba(0, 0, 0, .8);
  opacity: 0; transition: opacity .35s; will-change: transform;
}
.w3d-ubahn.is-on { opacity: .92; }


/* the nearest stop, in the card of a point */
.w3d-card__stop { display: grid; gap: 9px; margin: -4px 0 16px; color: #4a4541; font-size: .88rem; }
.w3d-card__stop[hidden] { display: none; }
/* the name on the left, the line badges on the right of the same row, the walk underneath */
.w3d-card__stop span { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 3px 10px; align-items: center; }
.w3d-card__stop em { font-style: normal; line-height: 1.25; }
.w3d-card__stop i { grid-column: 1 / -1; font: .72rem var(--f-mono); letter-spacing: .02em; color: #8a827a; }
/* several lines can call at one stop: their badges stay together, at the right edge */
.w3d-card__stop u { grid-column: 2; justify-self: end; display: flex; gap: 3px; text-decoration: none; }
.w3d-card__stop b {
  display: grid; place-items: center; min-width: 19px; height: 17px; padding: 0 4px; border-radius: 2px;
  background: var(--u, #8c97a3); color: #fff; font: 800 .58rem var(--f-mono);
}


/* the nearest U-Bahn stop of the chosen point: a small sign that keeps its distance from the point */
.w3d-stoptag {
  position: fixed; left: 0; top: 0; z-index: 4; display: flex; align-items: center; gap: 4px;
  margin: 0; padding: 0; border-radius: 99px;
  opacity: 0; pointer-events: none; transition: opacity .4s; will-change: transform;
}
.w3d-stoptag.is-on { opacity: 1; }
.w3d-stoptag b {
  display: grid; place-items: center; min-width: 24px; height: 24px; padding: 0 5px; border-radius: 2px;
  background: var(--u, #8c97a3); color: #fff; font: 800 .76rem var(--f-mono);
  box-shadow: 0 0 0 2px rgba(13, 12, 12, .9), 0 2px 10px rgba(0, 0, 0, .7);
}
.w3d-stoptag i { color: rgba(255, 255, 255, .55); font-style: normal; }
@media (max-width: 900px) { .w3d-stoptag { font-size: .68rem; } }

/* two ways out of the card: into the page, or straight into Google Maps */
.w3d-card__links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; margin: 0; }
.w3d-card__maps {
  display: inline-flex; align-items: center; gap: 7px; color: #4a4541; text-decoration: none;
  font: 700 .74rem var(--f-mono); letter-spacing: .06em; text-transform: uppercase;
}
.w3d-card__maps::before { content: ""; width: 7px; height: 7px; border-radius: 50%; box-shadow: inset 0 0 0 2px #b41412; }
.w3d-card__maps:hover, .w3d-card__maps:focus-visible { color: var(--ink); }
.w3d-card__maps:hover::before { background: #b41412; }


/* the compass keeps north while the map turns, and the bar says how long a stretch really is */
.w3d-scale { position: fixed; z-index: 4; left: 50%; translate: -50% 0; bottom: clamp(30px, 5vh, 54px); display: flex; align-items: center; gap: 16px; pointer-events: none; }
.w3d-compass {
  position: relative; width: 34px; height: 34px; border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22);
}
.w3d-compass i {
  position: absolute; left: 50%; top: 5px; width: 0; height: 0; translate: -50% 0;
  border-left: 4px solid transparent; border-right: 4px solid transparent; border-bottom: 11px solid var(--red);
}
.w3d-compass span { position: absolute; left: 50%; bottom: 4px; translate: -50% 0; font: 700 .58rem var(--f-mono); color: rgba(255, 255, 255, .7); }
.w3d-ruler { display: grid; gap: 4px; }
.w3d-ruler b { display: block; height: 6px; border: 1px solid rgba(255, 255, 255, .5); border-top: 0; }
.w3d-ruler span { font: .62rem var(--f-mono); letter-spacing: .08em; color: rgba(255, 255, 255, .6); }
/* On a phone the bottom row belongs to the two buttons and the list of points, and the compass and the
   ruler landed on top of them. The ruler goes: a phone screen is too narrow to read a bar against. The
   needle moves up under the logo, where nothing else stands, and keeps north while a finger turns the map. */
@media (max-width: 900px) {
  .w3d-scale { left: var(--pad); translate: none; top: 84px; bottom: auto; }
  .w3d-ruler { display: none; }
  .w3d-compass { width: 30px; height: 30px; }
  .w3d-skyswitch { top: 128px; }
}

/* the walking time carries the weight, the metres come along in brackets */


/* the temporary switch for looking at every sky; it only exists with ?sky in the address */
.w3d-skyswitch {
  position: fixed; z-index: 7; left: var(--pad); top: 92px;
  display: inline-flex; align-items: center; gap: 10px; min-height: 40px; padding: 0 18px;
  color: var(--white); background: rgba(13, 12, 12, .8); border: 0; border-radius: 99px; cursor: pointer;
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .3);
  font: .74rem var(--f-mono); letter-spacing: .06em;
}
.w3d-skyswitch b { font-weight: 700; }
.w3d-skyswitch i { width: 9px; height: 9px; border-radius: 50%; background: linear-gradient(#ffd27a, #7b6cff); }
.w3d-skyswitch:hover, .w3d-skyswitch:focus-visible { background: var(--white); color: var(--ink); outline: none; }


/* a short window (a small laptop, a browser with many bars) must not cut the bottom row off */
@media (max-height: 820px) {
  .w3d-intro h1 { font-size: clamp(2.4rem, 5.4vw, 5.6rem); }
  .w3d-intro { bottom: clamp(74px, 12vh, 104px); }
}
@media (max-height: 680px) {
  .w3d-intro h1 { font-size: 2.2rem; }
  .w3d-hint { display: none; }
}