/* NSF ProVest GmbH – schlichtes Stylesheet, mobile first, nur Systemschriften */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --text: #1b1f24;
  --muted: #4a525c;
  --accent: #1a3d7c;
  --accent-hover: #0f2a5c;
  --line: #d6dbe2;
  --focus: #1a3d7c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151b;
    --text: #e6e9ee;
    --muted: #aeb6c1;
    --accent: #9cbcff;
    --accent-hover: #c3d6ff;
    --line: #2c3440;
    --focus: #9cbcff;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.6;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 48rem) {
  .wrap {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

/* Sprunglink */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--bg);
  padding: 0.5rem 1rem;
}

/* Kopf */
.site-header {
  border-top: 4px solid var(--accent);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  min-height: 3.5rem;
  padding-top: clamp(1rem, 0.75rem + 1vw, 1.5rem);
  padding-bottom: clamp(1rem, 0.75rem + 1vw, 1.5rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  color: var(--accent);
}

.brand img {
  display: block;
  width: auto;
  height: 2.5rem;
  max-width: 100%;
}

/* Inhalt */
main {
  padding-top: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  padding-bottom: clamp(2rem, 1.5rem + 2vw, 3rem);
}

h1,
h2,
h3 {
  line-height: 1.25;
  color: var(--text);
  hyphens: manual;
}

/* Überschriften nur leicht größer als der Fließtext (h1 = Text + 2pt) */
h1 {
  font-size: calc(1em + 2pt);
  margin: 0 0 1rem;
}

h2 {
  font-size: calc(1em + 1pt);
  margin: 2rem 0 0.75rem;
}

h3 {
  font-size: 1em;
  margin: 1.5rem 0 0.5rem;
}

p,
ul,
ol,
address,
dl {
  margin: 0 0 1rem;
}

ul,
ol {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.35rem;
}

address {
  font-style: normal;
}

.muted {
  color: var(--muted);
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--accent-hover);
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Kontaktliste: große Tippflächen */
.contact {
  list-style: none;
  padding: 0;
}

.contact li {
  margin: 0;
}

.contact a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.25rem 0;
}

/* Links in Listen (z. B. Schrittfolgen) mit ausreichender Tippfläche */
main li > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

dl.facts dt {
  font-weight: 600;
  margin-top: 0.75rem;
}

dl.facts dd {
  margin: 0;
}

dl.facts dd a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

/* Fußzeile */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 1rem 0 1.5rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.site-footer nav ul {
  list-style: none;
  padding: 0;
  margin: 0 0 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.5rem;
}

.site-footer nav li {
  margin: 0;
}

.site-footer nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.site-footer p {
  margin: 0;
}