/* ------------------------------------------------------------------
   vogel-haus.de — Dr. Oliver Vogel
   Einziges Stylesheet der Seite. Kein JavaScript, keine externen
   Ressourcen. Farben und Schrift wie Visitenkarte und Kurzprofil.
   ------------------------------------------------------------------ */

/* --- Schrift: Fira Sans, selbst gehostet (SIL OFL, s. fonts/OFL.txt) --- */

@font-face {
  font-family: "Fira Sans";
  src: url("fonts/FiraSans-Light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Fira Sans";
  src: url("fonts/FiraSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Fira Sans";
  src: url("fonts/FiraSans-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Fira Sans";
  src: url("fonts/FiraSans-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* --- Farben und Maße --- */

:root {
  --akzent: #c23224;        /* Logorot, helle Schwinge */
  --akzent-dunkel: #9c281d; /* fuer Hover/Fokus */
  --grau: #4d4d4d;          /* Sekundaertext und Fussband */
  --grau-hell: #767676;
  --linie: #d8d8d8;
  --flaeche: #f5f4f2;
  --text: #141414;
  --breite: 46rem;
  --schrift: "Fira Sans", system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

/* --- Grundlagen --- */

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

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

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: var(--schrift);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--akzent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover,
a:focus {
  color: var(--akzent-dunkel);
}

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

/* --- Skip-Link --- */

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10;
  background: #fff;
  color: var(--akzent);
  padding: 0.6rem 1rem;
  border: 2px solid var(--akzent);
}

.skip:focus {
  left: 0.5rem;
  top: 0.5rem;
}

/* --- Layout --- */

.wrap {
  max-width: var(--breite);
  margin: 0 auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

main {
  padding-block: 2.5rem 3.5rem;
}

/* --- Kopf --- */

.kopf {
  border-bottom: 3px solid var(--akzent);
  padding-block: 1rem 0.75rem;
}

.kopf-zeile {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

.marke {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  margin-right: auto;
}

.marke img {
  width: 2.75rem;
  height: auto;
  flex: none;
}

.marke-name {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.005em;
}

.marke-rolle {
  display: block;
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--grau);
}

.sprache {
  font-size: 0.875rem;
  color: var(--grau);
  white-space: nowrap;
}

.sprache a {
  color: var(--grau);
}

.sprache .aktiv {
  color: var(--text);
  font-weight: 500;
}

/* --- Navigation --- */

.nav {
  margin-top: 0.75rem;
}

.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
}

.nav a {
  display: inline-block;
  padding: 0.25rem 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--grau);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.nav a:hover {
  color: var(--akzent);
  border-bottom-color: var(--linie);
}

.nav a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--akzent);
}

/* --- Typografie --- */

h1 {
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}

.dachzeile {
  font-size: clamp(1.0625rem, 0.95rem + 0.5vw, 1.25rem);
  font-weight: 500;
  color: var(--akzent);
  margin: 0 0 1.5rem;
  line-height: 1.35;
}

h2 {
  font-size: 1.3125rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--akzent);
  /* Keine Linie unter der Ueberschrift: sie wuerde Ueberschrift und Inhalt optisch trennen.
     Farbe, Groesse und der groessere Abstand davor genuegen. */
  margin: 2.75rem 0 0.35rem;
}

h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.35;
  margin: 1.75rem 0 0.25rem;
}

h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--grau);
  margin: 1.75rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
}

/* Startseite: Text links, Portraet rechts; schmal: Portraet oben */
.intro {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
}

.intro-text {
  flex: 1 1 auto;
  min-width: 0;
}

.portrait {
  flex: 0 0 auto;
  width: 176px;
  height: 176px;
  margin-top: 0.5rem;
  border-radius: 50%;
}

@media (max-width: 640px) {
  .intro {
    flex-direction: column;
    gap: 0.5rem;
  }

  .portrait {
    order: -1;
    width: 120px;
    height: 120px;
    margin-top: 0;
  }
}

.vorspann {
  font-size: 1.125rem;
  line-height: 1.6;
}

ul,
ol {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.35rem;
}

li::marker {
  color: var(--akzent);
}

strong {
  font-weight: 600;
}

/* --- Bausteine --- */

.leiste {
  border-top: 3px solid var(--akzent);
  margin-top: 0.5rem;
}

.karten {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.karte {
  background: var(--flaeche);
  border-left: 4px solid var(--akzent);
  padding: 1rem 1.25rem;
}

.karte h2 {
  margin: 0 0 0.35rem;
  padding: 0;
  border: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
}

.karte p:last-child {
  margin-bottom: 0;
}

.meta {
  font-size: 0.9375rem;
  color: var(--grau);
}

.tech {
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--grau);
  margin: 0.15rem 0 0;
}

.branche {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--akzent);
  margin-bottom: 0.1rem;
}

.projekt {
  margin: 0 0 1.75rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--linie);
}

.projekt h3 {
  margin: 0 0 0.15rem;
}

.projekt p {
  margin: 0 0 0.25rem;
}

.jahr {
  color: var(--grau);
  font-weight: 400;
  white-space: nowrap;
}

.kontaktliste {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.kontaktliste li {
  margin-bottom: 0.6rem;
}

.kontaktliste .label {
  display: inline-block;
  min-width: 7.5rem;
  color: var(--grau);
  font-size: 0.9375rem;
}

.cta {
  background: var(--flaeche);
  border-top: 3px solid var(--akzent);
  padding: 1.25rem 1.25rem 0.5rem;
  margin: 2.5rem 0 0;
}

.cta h2 {
  margin-top: 0;
}

.liste-kompakt {
  font-size: 0.9375rem;
}

.liste-kompakt li {
  margin-bottom: 0.2rem;
}

.pubs {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  counter-reset: pub;
}

.pubs li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.7rem;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.pubs li::before {
  content: "\25AA";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--akzent);
}

.pubs cite {
  font-style: italic;
}

.hinweis {
  font-size: 0.9375rem;
  color: var(--grau);
  border-left: 3px solid var(--linie);
  padding-left: 0.9rem;
  margin: 1.5rem 0;
}

/* --- Fuss --- */

.fuss {
  background: var(--grau);
  color: #fff;
  padding-block: 1.75rem 2rem;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.fuss p {
  margin: 0 0 0.5rem;
}

.fuss a {
  color: #fff;
}

.fuss a:hover,
.fuss a:focus {
  color: #fff;
}

.fuss :focus-visible {
  outline-color: #fff;
}

.fuss-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0.75rem 0 0;
  padding: 0;
}

.fuss-links li {
  margin: 0;
}

/* Trennpunkt zwischen Aufzaehlungen. Im Markup steht davor ein geschuetztes
   und dahinter ein normales Leerzeichen, damit hier umbrochen werden darf. */
.trenner {
  color: var(--grau-hell);
  padding: 0 0.1rem;
}

.fuss .trenner {
  color: rgba(255, 255, 255, 0.55);
}

/* --- Ab Tablet --- */

@media (min-width: 40rem) {
  .karten {
    gap: 1.25rem;
  }

  .kopf {
    padding-block: 1.25rem 0.85rem;
  }
}

/* --- Druck --- */

@media print {
  body {
    font-size: 10.5pt;
    line-height: 1.45;
    color: #000;
  }

  .nav,
  .sprache,
  .skip,
  .cta {
    display: none;
  }

  .kopf {
    border-bottom: 1.5pt solid #000;
  }

  .fuss {
    background: none;
    color: #000;
    border-top: 0.5pt solid #000;
    padding-block: 0.5rem;
  }

  .fuss a {
    color: #000;
  }

  a {
    color: #000;
  }

  main a[href^="http"]::after,
  main a[href^="mailto"]::after {
    content: " (" attr(href) ")";
    font-size: 9pt;
    word-break: break-all;
  }

  h2,
  h3 {
    break-after: avoid;
    color: #000;
  }

  .projekt,
  .karte {
    break-inside: avoid;
  }
}