/* Projektseite NextPad. Systemschrift wie die App, keine fremden Schriften oder Skripte. */
:root {
  --bg: #ffffff;
  --bg-alt: #f2f7f8;
  --fg: #1e1e1e;
  --muted: #4f5b5e;
  --line: #d5e2e5;
  --primary: #007a96;
  --primary-ink: #005f75;
  --on-primary: #ffffff;
  --tint: #e0f0f4;
  --code-bg: #0f2a31;
  --code-fg: #e6f3f6;
  --code-dim: #8fb7c1;
  --code-key: #7fd4ff;
  --shadow: 0 1px 2px rgba(15, 42, 49, .08), 0 8px 24px rgba(15, 42, 49, .08);
  --font: Arial, "Helvetica Neue", Helvetica, "Liberation Sans", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #141a1c; --bg-alt: #1b2326; --fg: #f1f4f5; --muted: #a9b6b9; --line: #2e3a3e;
    --primary: #3fb4d0; --primary-ink: #7fd4ff; --on-primary: #0b1f24; --tint: #17343c;
    --code-bg: #0b1416; --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #141a1c; --bg-alt: #1b2326; --fg: #f1f4f5; --muted: #a9b6b9; --line: #2e3a3e;
  --primary: #3fb4d0; --primary-ink: #7fd4ff; --on-primary: #0b1f24; --tint: #17343c;
  --code-bg: #0b1416; --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 var(--font);
  -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-ink); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }
h1, h2, h3 { line-height: 1.2; text-wrap: balance; margin: 0; }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0; }
code { font-family: var(--mono); font-size: .9em; }

.wrap {
  max-width: 1120px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.skip { position: absolute; left: -999px; top: 8px; background: var(--bg); padding: 8px 12px; z-index: 20; }
.skip:focus { left: 16px; }

/* Kopf */
.top { border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); text-decoration: none; font-size: 1.35rem; }
.brand img { width: 34px; height: 34px; }
.brand b { font-weight: 700; }
.top nav { display: flex; gap: 20px; flex-wrap: wrap; font-size: .95rem; }
.top nav a { color: var(--fg); text-decoration: none; }
.top nav a:hover { color: var(--primary-ink); text-decoration: underline; }

/* Einstieg */
.hero { padding-block: clamp(40px, 7vw, 88px) clamp(40px, 6vw, 72px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.kicker { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.hero h1 { font-size: clamp(2.1rem, 1.4rem + 2.4vw, 3rem); letter-spacing: -.01em; }
.hero h1 em { font-style: normal; color: var(--primary-ink); }
.lead { font-size: 1.2rem; color: var(--muted); margin-top: 20px; max-width: 34em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px;
  font-weight: 700; text-decoration: none; border: 2px solid var(--primary);
}
.btn.main { background: var(--primary); color: var(--on-primary); }
.btn.main:hover { background: var(--primary-ink); border-color: var(--primary-ink); }
.btn.ghost { color: var(--primary-ink); }
.btn.ghost:hover { background: var(--tint); }
.facts { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 28px; padding: 0; list-style: none; font-size: .92rem; color: var(--muted); }
.facts li::before { content: ""; display: inline-block; width: 8px; height: 8px; background: var(--primary); margin-right: 8px; vertical-align: 1px; }

/* Bildschirmfotos im Fensterrahmen */
.shot { margin: 0; border: 1px solid var(--line); background: var(--bg); box-shadow: var(--shadow); }
.shot::before { content: ""; display: block; height: 22px; border-bottom: 1px solid var(--line); background:
  radial-gradient(circle at 12px 11px, var(--line) 4px, transparent 5px),
  radial-gradient(circle at 28px 11px, var(--line) 4px, transparent 5px),
  radial-gradient(circle at 44px 11px, var(--line) 4px, transparent 5px), var(--bg-alt); }
.shot img { width: 100%; }
.hero .shot { transform: rotate(.6deg); }
.pic-dark { display: none; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .pic-light { display: none; } :root:not([data-theme="light"]) .pic-dark { display: block; } }
:root[data-theme="dark"] .pic-light { display: none; }
:root[data-theme="dark"] .pic-dark { display: block; }

/* Abschnitte */
section { padding-block: clamp(48px, 7vw, 88px); }
section.alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.head { max-width: 46em; display: grid; gap: 14px; margin-bottom: clamp(28px, 4vw, 44px); }
.head p { color: var(--muted); font-size: 1.08rem; }

.why { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.why div { border-top: 4px solid var(--primary); padding-top: 16px; display: grid; gap: 8px; align-content: start; }
.why p { color: var(--muted); }
.big { font-size: 2rem; font-weight: 700; color: var(--primary-ink); line-height: 1; }

.feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.feature + .feature { margin-top: clamp(48px, 7vw, 80px); }
.feature.flip { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); }
.feature.flip > :first-child { order: 2; }
.feature .text { display: grid; gap: 14px; align-content: start; }
.feature .text p { color: var(--muted); }
.feature ul { margin: 0; padding-left: 1.1em; color: var(--muted); display: grid; gap: 4px; }
.feature .pair { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.tag { display: inline-block; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--primary-ink); font-weight: 700; }

/* Moodle */
.moodle { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 20px; counter-reset: s; }
.steps li { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 4px 14px; counter-increment: s; }
.steps li::before { content: counter(s); grid-row: span 2; width: 40px; height: 40px; display: grid; place-items: center; background: var(--primary); color: var(--on-primary); font-weight: 700; }
.steps p { color: var(--muted); }
.term { background: var(--code-bg); color: var(--code-fg); padding: 20px; overflow-x: auto; font: .88rem/1.65 var(--mono); margin: 0; }
.term .c { color: var(--code-dim); }
.term .k { color: var(--code-key); }
.caption { font-size: .88rem; color: var(--muted); margin-top: 10px; }

/* Datenschutz und Betrieb */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 16px; }
.card { background: var(--bg); border: 1px solid var(--line); padding: 22px; display: grid; gap: 8px; align-content: start; }
.card p { color: var(--muted); }
section.alt .card { background: var(--bg); }

/* Installieren */
.install { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.install .card { gap: 12px; }
.install .term { padding: 14px 16px; font-size: .82rem; }

/* Fuß */
footer { border-top: 1px solid var(--line); padding-block: 32px 40px; font-size: .92rem; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 32px; justify-content: space-between; }
footer p + p { margin-top: 6px; }

@media (max-width: 900px) {
  .hero .wrap, .feature, .feature.flip, .moodle { grid-template-columns: minmax(0, 1fr); }
  .feature.flip > :first-child { order: 0; }
  .why, .install { grid-template-columns: minmax(0, 1fr); }
  .hero .shot { transform: none; }
}
@media (max-width: 560px) {
  .feature .pair { grid-template-columns: minmax(0, 1fr); }
  .top nav { gap: 14px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Ergänzungen für die Zola-Fassung */
.top nav a { min-height: 44px; display: inline-flex; align-items: center; }
.top nav a.lang { border: 1px solid var(--line); padding-inline: 12px; }
.ver { display: inline-block; margin-left: 10px; padding: 2px 8px; font-size: .75rem; letter-spacing: .05em; background: var(--tint); color: var(--primary-ink); text-transform: none; }
.btn { min-height: 48px; }

/* Quiz-Tafel als reines CSS, kein Bildschirmfoto nötig */
.board { border: 1px solid var(--line); background: var(--code-bg); color: var(--code-fg); padding: 16px; box-shadow: var(--shadow); display: grid; gap: 10px; }
.board .cols { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.board .cat { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; text-align: center; padding: 8px 4px; color: var(--code-key); overflow-wrap: anywhere; }
.board .cell { display: grid; place-items: center; min-height: 52px; font-size: 1.25rem; font-weight: 700; background: #12414c; color: #fff; }
.board .cell.done { background: transparent; border: 1px dashed #2f5560; color: var(--code-dim); font-weight: 400; }
.board .cell.now { background: var(--primary); outline: 3px solid #fff; outline-offset: -3px; }
.board .bar { display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: space-between; font-size: .9rem; color: var(--code-dim); }
.board .bar b { color: var(--code-fg); }
.board .buzz { background: #ffd166; color: #1e1e1e; padding: 2px 10px; font-weight: 700; }
@media (max-width: 560px) { .board .cell { min-height: 44px; font-size: 1rem; } }
.plat { font-size: 1.3rem; margin-bottom: 20px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 12px; }
.plat span { font-size: .95rem; font-weight: 400; color: var(--muted); }
.plat .badge { font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--primary-ink); background: var(--tint); padding: 2px 8px; }
.plat-card { margin-top: clamp(28px, 4vw, 44px); max-width: 46em; }
.plat-card .plat { margin-bottom: 0; }
.grid.vier { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.card .tag + h3 { margin-top: -2px; }
.langhint { margin: 0; background: var(--tint); font-size: .92rem; }
.langhint .wrap { display: block; padding-block: 10px; }

/* Drei Erscheinungsbilder */
.theme { margin: 0; padding: 0; overflow: hidden; }
.theme img { display: block; width: 100%; height: auto; border-bottom: 1px solid var(--line); }
.theme figcaption { padding: 18px 22px 22px; display: grid; gap: 8px; }
.theme h3 { margin: 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; }
.theme h3 code { font-size: .8em; color: var(--muted); }
.note { color: var(--muted); margin-top: 20px; }
.theme .badge { font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--primary-ink); background: var(--tint); padding: 2px 8px; }