/*
  morse.chrustek.studio – die Leseseite zum Spiel.
  Bewusst anders als das Spiel: hell wie Papier, Serifen-Fließtext zum Lesen,
  nur Überschriften, Navigation und Morse im Monospace des Spiels.
*/
:root {
  --paper: #f3f2ed;
  --panel: #fbfaf6;
  --ink: #141414;
  --dim: #5f5f5b;
  --line: #cfccc2;
  --mono: ui-monospace, 'SF Mono', 'JetBrains Mono', 'Cascadia Mono', Menlo, Consolas, monospace;
  --serif: Charter, 'Bitstream Charter', 'Iowan Old Style', 'Sitka Text', Cambria, Georgia, serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #111110;
    --panel: #181816;
    --ink: #ecebe6;
    --dim: #9d9b94;
    --line: #34332f;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); }
body {
  margin: 0;
  font: 18px/1.7 var(--serif);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; height: auto; display: block; }
::selection { background: var(--ink); color: var(--paper); }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
.wide { max-width: 1040px; }

/* Kopfzeile */
.top {
  border-bottom: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  position: sticky;
  top: 0;
  background: var(--paper);
  z-index: 5;
}
.top .wrap { display: flex; align-items: center; gap: 18px; min-height: 56px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.18em; text-decoration: none; }
.logo { display: inline-flex; gap: 3px; align-items: center; }
.logo b { width: 18px; height: 6px; background: var(--ink); display: block; }
.logo i { width: 6px; height: 6px; background: var(--ink); display: block; }
.nav { display: flex; gap: 16px; flex-wrap: wrap; flex: 1; }
.nav a { text-decoration: none; text-transform: uppercase; color: var(--dim); }
.nav a:hover, .nav a[aria-current='page'] { color: var(--ink); text-decoration: underline; }
.lang { color: var(--dim); text-decoration: none; }
.play-cta {
  border: 1px solid var(--ink);
  padding: 6px 10px;
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
}
.play-cta:hover { background: var(--ink); color: var(--paper); }
@media (max-width: 720px) {
  .top { position: static; }
  .top .wrap { gap: 10px 14px; padding-top: 8px; }
  .brand { flex: 1; }
  .nav { order: 3; flex-basis: 100%; gap: 12px; padding-bottom: 10px; font-size: 12px; }
  body { font-size: 17px; }
  th, td { padding: 8px 6px; }
  td.code .txt { display: none; }
}

/* Typografie */
h1, h2, h3 { font-family: var(--mono); line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: clamp(30px, 5.2vw, 46px); margin: 56px 0 18px; }
h2 { font-size: 22px; margin: 56px 0 14px; padding-top: 14px; border-top: 1px solid var(--ink); }
h3 { font-size: 17px; margin: 32px 0 8px; }
p, ul, ol { margin: 0 0 18px; }
li { margin: 4px 0; }
.lead { font-size: 21px; line-height: 1.6; color: var(--ink); }
.kicker { font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim); margin-top: 48px; }
.kicker + h1 { margin-top: 10px; }
.muted { color: var(--dim); }
.small { font-size: 15px; }
.mono { font-family: var(--mono); }
code, kbd { font-family: var(--mono); font-size: 0.88em; background: var(--panel); border: 1px solid var(--line); padding: 1px 5px; }
blockquote { margin: 24px 0; padding: 4px 0 4px 18px; border-left: 2px solid var(--ink); font-style: italic; }
hr { border: 0; border-top: 1px solid var(--line); margin: 40px 0; }

/* Knöpfe */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: 700 14px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; text-decoration: none;
  border: 2px solid var(--ink); padding: 13px 20px; background: var(--paper); color: var(--ink); cursor: pointer;
}
.btn.solid { background: var(--ink); color: var(--paper); }
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.solid:hover { background: var(--paper); color: var(--ink); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0; }

/* Hero */
.hero { padding: 24px 0 8px; }
.hero .mark { display: flex; gap: 14px; align-items: center; margin-top: 56px; }
.hero .mark b { width: 96px; height: 28px; background: var(--ink); display: block; }
.hero .mark i { width: 28px; height: 28px; background: var(--ink); display: block; }
.hero .mark span { font-family: var(--mono); font-size: 13px; color: var(--dim); letter-spacing: 0.12em; }
.hero h1 { margin-top: 26px; }

/* Screenshots */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 36px 0; }
.shots figure { margin: 0; }
.shots img { border: 1px solid var(--ink); background: #0a0a0a; }
.shots figcaption { font: 12px/1.5 var(--mono); color: var(--dim); margin-top: 8px; }
@media (max-width: 620px) { .shots { grid-template-columns: repeat(3, 70%); overflow-x: auto; scroll-snap-type: x mandatory; } .shots figure { scroll-snap-align: start; } }

/* Karten */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 20px 0 28px; }
.card { border: 1px solid var(--ink); padding: 16px; text-decoration: none; display: flex; flex-direction: column; gap: 6px; background: var(--panel); }
.card:hover { background: var(--ink); color: var(--paper); }
.card:hover .muted { color: var(--paper); }
.card b { font-family: var(--mono); font-size: 15px; }
.card span { font-size: 15px; line-height: 1.5; }
.steps { counter-reset: s; list-style: none; padding: 0; }
.steps li { counter-increment: s; padding-left: 52px; position: relative; margin: 18px 0; }
.steps li::before {
  content: counter(s, decimal-leading-zero);
  position: absolute; left: 0; top: 2px;
  font: 700 14px var(--mono); border: 1px solid var(--ink); padding: 2px 6px;
}

/* Tabellen */
.table-wrap { overflow-x: auto; margin: 16px 0 28px; }
table { border-collapse: collapse; width: 100%; font-size: 16px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font: 700 12px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; border-bottom: 1px solid var(--ink); }
td.ch { font: 700 22px var(--mono); width: 56px; }
td.code { font-family: var(--mono); white-space: nowrap; }
td.code .txt { color: var(--dim); font-size: 13px; margin-left: 10px; }

/* Morse-Muster wie im Spiel */
.pat { display: inline-flex; gap: 4px; align-items: center; vertical-align: middle; }
.pat .d { width: 8px; height: 8px; background: var(--ink); }
.pat .s { width: 24px; height: 8px; background: var(--ink); }
.pat.big .d { width: 16px; height: 16px; }
.pat.big .s { width: 48px; height: 16px; }
.pat.big { gap: 8px; }

.listen {
  font: 700 12px var(--mono); letter-spacing: 0.1em; border: 1px solid var(--ink); background: var(--paper);
  color: var(--ink); padding: 4px 8px; cursor: pointer;
}
.listen:hover, .listen.on { background: var(--ink); color: var(--paper); }

/* Übersetzer */
.tool { border: 2px solid var(--ink); padding: 18px; margin: 24px 0 32px; background: var(--panel); }
.tool label { font: 700 12px var(--mono); letter-spacing: 0.14em; text-transform: uppercase; display: block; margin-bottom: 6px; }
.tool textarea {
  width: 100%; min-height: 96px; resize: vertical; border: 1px solid var(--ink); background: var(--paper);
  color: var(--ink); font: 700 18px/1.5 var(--mono); padding: 10px; text-transform: uppercase;
}
.tool .out { font: 700 20px/1.8 var(--mono); word-break: break-word; min-height: 60px; padding: 10px 0; }
.tool .row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.tool .lamp { width: 26px; height: 26px; border: 2px solid var(--ink); display: inline-block; }
.tool .lamp.on { background: var(--ink); }

/* FAQ */
details { border-top: 1px solid var(--line); padding: 12px 0; }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font: 700 16px/1.5 var(--mono); list-style: none; }
summary::before { content: '+ '; }
details[open] summary::before { content: '– '; }
details p { margin: 10px 0 4px; }

/* Abschluss & Fuß */
.cta-box { border: 2px solid var(--ink); padding: 28px; margin: 56px 0; text-align: center; }
.cta-box p { margin-bottom: 18px; }
.foot { border-top: 1px solid var(--ink); margin-top: 72px; padding: 26px 0 40px; font: 13px/1.8 var(--mono); color: var(--dim); }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
.foot a { color: inherit; }
.toc { font: 14px/1.9 var(--mono); border-left: 2px solid var(--ink); padding-left: 16px; margin: 24px 0; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }
.note { font-size: 15px; border: 1px dashed var(--line); padding: 12px 14px; color: var(--dim); }