/* ==========================================================================
   MatheAlex – statische Homepage
   Gestaltung nach dem Corporate Design: Dunkelblau, Rosa, Warm-Weiss.
   Kein PHP, keine Fremdressourcen, keine Cookies.
   ========================================================================== */

/* --- Schriften ------------------------------------------------------------
   Montserrat fuer Ueberschriften, Open Sans fuer Fliesstext, beide lokal.
   Solange die Dateien im Ordner schriften/ fehlen, greift der System-Stack.
   -------------------------------------------------------------------------- */

@font-face {
  font-family: "Montserrat";
  src: url("schriften/Montserrat-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Montserrat";
  src: url("schriften/Montserrat-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Open Sans";
  src: url("schriften/OpenSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Open Sans";
  src: url("schriften/OpenSans-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

:root {
  /* Farben des Corporate Designs */
  --blau:        #00254F;
  --blau-mittel: #1e3a5f;
  --blau-tief:   #001a3a;
  --rosa:        #F2A9A9;
  --rosa-hell:   #fce4e4;
  --warm:        #FFF9F2;
  --text:        #1a2a3a;
  --text-hell:   #4a5a6a;
  --weiss:       #ffffff;
  --wa:          #25d366;

  --schrift-titel: "Montserrat", "Segoe UI Semibold", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --schrift-text:  "Open Sans", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --breite: 1140px;
  --schmal: 780px;
  --rund:   14px;
  --schatten:      0 2px 10px rgba(0, 37, 79, .06);
  --schatten-hoch: 0 14px 40px rgba(0, 37, 79, .14);
  --leiste-hoehe:  74px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--schrift-text);
  font-size: 19px;
  line-height: 1.75;
  color: var(--text);
  background: var(--weiss);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: var(--blau); }

h1, h2, h3, .titel { font-family: var(--schrift-titel); font-weight: 600; }

/* Nichts darf ueber den Rand laufen, auch kein langes Wort */
h1, h2, h3, h4, p, li, a { overflow-wrap: break-word; }

.mitte     { max-width: var(--breite); margin: 0 auto; padding: 0 28px; }
.mitte-eng { max-width: var(--schmal); margin: 0 auto; padding: 0 28px; }
.zentriert { text-align: center; }

/* --- Kopfleiste ----------------------------------------------------------- */

.kopf {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 80;
  height: var(--leiste-hoehe);
  display: flex; align-items: center;
  background: transparent;
  transition: background .3s ease, box-shadow .3s ease, height .3s ease;
}
.kopf.fest {
  background: rgba(0, 37, 79, .96);
  box-shadow: 0 2px 20px rgba(0, 0, 0, .18);
  height: 62px;
  backdrop-filter: blur(8px);
}

.kopf .mitte {
  max-width: 100%;
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
  padding: 0 26px;
}

.wortmarke {
  font-family: var(--schrift-titel);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 1px;
  color: var(--weiss);
  text-decoration: none;
  white-space: nowrap;
}
.wortmarke span { color: var(--rosa); }

.kopf-rechts { display: flex; align-items: center; gap: 22px; }

.kopf-kontakt {
  display: flex; align-items: center; gap: 18px;
  font-size: 16px;
}
.kopf-kontakt a {
  color: rgba(255,255,255,.88);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s, color .2s;
}
.kopf-kontakt a:hover { color: var(--weiss); border-bottom-color: var(--rosa); }

/* Burger, bewusst gross genug zum Treffen */
.burger {
  width: 52px; height: 52px;
  border: 0; border-radius: 50%;
  background: rgba(255,255,255,.10);
  cursor: pointer;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 6px;
  transition: background .2s;
}
.burger:hover { background: rgba(242,169,169,.28); }
.burger i {
  display: block;
  width: 24px; height: 2px;
  background: var(--weiss);
  border-radius: 2px;
  transition: transform .3s ease, opacity .2s ease;
}
.burger.aktiv i:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger.aktiv i:nth-child(2) { opacity: 0; }
.burger.aktiv i:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* --- Menue-Ebene ---------------------------------------------------------- */

.menue {
  position: fixed; inset: 0;
  z-index: 70;
  background: rgba(0, 26, 58, .97);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity .3s ease, visibility .3s ease;
}
.menue.offen { opacity: 1; visibility: visible; }
.menue ul { list-style: none; margin: 0; padding: 0; text-align: center; }
.menue li { margin: 20px 0; }
.menue a {
  font-family: var(--schrift-titel);
  font-size: clamp(24px, 4vw, 38px);
  font-weight: 600;
  color: var(--weiss);
  text-decoration: none;
  position: relative;
  transition: color .2s;
}
.menue a::after {
  content: "";
  position: absolute; left: 50%; bottom: -8px;
  width: 0; height: 3px; background: var(--rosa);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width .28s ease;
}
.menue a:hover { color: var(--rosa); }
.menue a:hover::after { width: 100%; }

/* --- Startbereich, volle Bildschirmhoehe ---------------------------------- */

.start {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  color: var(--weiss);
  background:
    radial-gradient(1100px 620px at 78% 12%, rgba(242,169,169,.16), transparent 62%),
    radial-gradient(900px 520px at 12% 88%, rgba(30,58,95,.85), transparent 58%),
    linear-gradient(160deg, var(--blau) 0%, var(--blau-tief) 100%);
  overflow: hidden;
  padding: calc(var(--leiste-hoehe) + 20px) 24px 130px;
}

/* Sinuskurve im Hintergrund, Anspielung auf das Icon der Marke */
.start .kurve {
  position: absolute;
  left: -5%; right: -5%; bottom: 12%;
  width: 110%; height: auto;
  opacity: .16;
  pointer-events: none;
}
.start .raster {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(circle at 50% 45%, #000 25%, transparent 78%);
  pointer-events: none;
}

.start .inhalt { position: relative; z-index: 2; max-width: 940px; }

.kicker {
  font-family: var(--schrift-titel);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--rosa);
  margin: 0 0 22px;
}

.start h1 {
  font-size: clamp(30px, 7.2vw, 78px);
  line-height: 1.1;
  margin: 0 0 10px;
  font-weight: 700;
  letter-spacing: -.5px;
}

/* Die drei Bereiche, ausgeschrieben statt getippt */
.faecher {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: baseline;
  gap: .12em .55em;
  margin-top: .06em;
}
.fach { color: var(--rosa); white-space: nowrap; }
@keyframes blinken { 50% { opacity: 0; } }

.start .stadt {
  font-family: var(--schrift-titel);
  font-size: clamp(17px, 2.4vw, 24px);
  font-weight: 600;
  letter-spacing: 7px;
  text-transform: uppercase;
  color: rgba(255,255,255,.7);
  margin: 18px 0 0;
}

.start .unterzeile {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(255,255,255,.8);
  max-width: 640px;
  margin: 26px auto 0;
}

.start .knoepfe {
  display: flex; flex-wrap: wrap;
  gap: 16px; justify-content: center;
  margin-top: 42px;
}

/* Pfeil nach unten */
.runter {
  position: absolute;
  left: 50%; bottom: 30px;
  transform: translateX(-50%);
  z-index: 2;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  animation: schweben 2.4s ease-in-out infinite;
}
.runter svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 2; }
@keyframes schweben {
  0%, 100% { transform: translate(-50%, 0); }
  50%      { transform: translate(-50%, 9px); }
}

/* --- Knoepfe -------------------------------------------------------------- */

.knopf {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--schrift-titel);
  font-size: 16px; font-weight: 600;
  padding: 15px 30px;
  border-radius: 999px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
}
.knopf svg { width: 19px; height: 19px; }

.knopf-voll {
  background: var(--rosa);
  color: var(--blau);
  box-shadow: 0 8px 24px rgba(242,169,169,.34);
}
.knopf-voll:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(242,169,169,.46); }

.knopf-rand {
  border-color: rgba(255,255,255,.42);
  color: var(--weiss);
}
.knopf-rand:hover { border-color: var(--rosa); color: var(--rosa); transform: translateY(-2px); }

.knopf-blau {
  background: var(--blau);
  color: var(--weiss);
  box-shadow: 0 8px 22px rgba(0,37,79,.22);
}
.knopf-blau:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0,37,79,.3); }

/* --- Abschnitte ----------------------------------------------------------- */

.abschnitt       { padding: 96px 0; }
.abschnitt.warm  { background: var(--warm); }
.abschnitt.blau  { background: var(--blau); color: var(--weiss); }
.abschnitt.eng   { padding: 66px 0; }

h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.25;
  margin: 0 0 20px;
  color: var(--blau);
  letter-spacing: -.3px;
}
.blau h2 { color: var(--weiss); }

h3 { font-size: 21px; margin: 0 0 10px; color: var(--blau); }

/* Doppelstrich unter dem Titel, Erkennungszeichen der Marke */
.strich-unten {
  width: 78px; height: 4px;
  background: var(--rosa);
  border-radius: 2px;
  margin: 0 0 30px;
  position: relative;
}
.strich-unten::after {
  content: "";
  position: absolute; left: 0; top: 8px;
  width: 34px; height: 4px;
  background: var(--rosa);
  opacity: .45;
  border-radius: 2px;
}
.zentriert .strich-unten { margin-left: auto; margin-right: auto; }

.vorwort {
  font-family: var(--schrift-titel);
  font-size: 14px; font-weight: 600;
  letter-spacing: 4px; text-transform: uppercase;
  color: var(--rosa);
  margin: 0 0 14px;
}
.blau .vorwort { color: var(--rosa); }

/* --- Zitat mit Person ------------------------------------------------------ */

.zitat {
  position: relative;
  font-family: var(--schrift-titel);
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--blau);
  max-width: 760px;
  margin: 0 auto 34px;
}
.zitat::before {
  content: "\201C";
  display: block;
  font-size: 80px; line-height: .8;
  color: var(--rosa);
  margin-bottom: 6px;
}

.portrait-rahmen {
  position: relative;
  width: 216px; height: 216px;
  margin: 0 auto 22px;
}
.portrait-rahmen img {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid var(--weiss);
  box-shadow: var(--schatten-hoch);
  position: relative; z-index: 2;
}
.portrait-rahmen::after {
  content: "";
  position: absolute; inset: -12px;
  border: 2px solid var(--rosa);
  border-radius: 50%;
  opacity: .65;
}
.person-name {
  font-family: var(--schrift-titel);
  font-size: 18px; font-weight: 600;
  color: var(--blau);
  margin: 0;
}
.person-rolle { font-size: 15px; color: var(--text-hell); margin: 2px 0 0; }

.signatur {
  display: inline-flex; align-items: center; gap: 13px;
  margin-top: 30px;
  background: var(--weiss);
  border: 1px solid rgba(0,37,79,.08);
  border-radius: 999px;
  padding: 9px 20px 9px 9px;
  box-shadow: var(--schatten);
}
.signatur img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.signatur div  { text-align: left; line-height: 1.25; }
.signatur strong { display: block; font-family: var(--schrift-titel); font-size: 15px; color: var(--blau); }
.signatur small  { font-size: 13px; color: var(--text-hell); }

/* --- Hinweisbalken Lernplattform ------------------------------------------ */

.balken {
  background: linear-gradient(120deg, var(--blau) 0%, var(--blau-mittel) 100%);
  color: var(--weiss);
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}
.balken::before {
  content: "";
  position: absolute; right: -60px; top: -60px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(242,169,169,.22), transparent 68%);
  pointer-events: none;
}
.balken .mitte {
  display: flex; align-items: center; justify-content: space-between;
  gap: 30px; flex-wrap: wrap;
  position: relative; z-index: 2;
}
.balken .marke {
  display: inline-block;
  font-family: var(--schrift-titel);
  font-size: 12px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase;
  color: var(--blau);
  background: var(--rosa);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 12px;
}
.balken h2 { font-size: clamp(21px, 2.6vw, 28px); margin: 0 0 8px; color: var(--weiss); }
.balken p  { margin: 0; color: rgba(255,255,255,.84); font-size: 17px; max-width: 620px; }
.balken .text { flex: 1 1 420px; }

/* --- Schritte ------------------------------------------------------------- */

.schritte {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
  gap: 26px;
  margin-top: 54px;
}
.karte-schritt {
  background: var(--weiss);
  border: 1px solid rgba(0,37,79,.08);
  border-radius: var(--rund);
  padding: 38px 30px 34px;
  box-shadow: var(--schatten);
  position: relative;
  transition: transform .25s ease, box-shadow .25s ease;
}
.karte-schritt:hover { transform: translateY(-6px); box-shadow: var(--schatten-hoch); }
.karte-schritt .nummer {
  position: absolute; top: -24px; left: 30px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--rosa);
  color: var(--blau);
  font-family: var(--schrift-titel);
  font-size: 21px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(242,169,169,.42);
}
.karte-schritt h3 { margin-top: 14px; }
.karte-schritt p  { font-size: 16px; margin: 0; }
.karte-schritt ul { margin: 14px 0 0; padding-left: 20px; font-size: 16px; }
.karte-schritt li { margin-bottom: 6px; }
.karte-schritt li::marker { color: var(--rosa); }

/* --- Pruefungsbloecke ------------------------------------------------------ */

.pruefung {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 56px;
  align-items: center;
  background: var(--weiss);
  border: 1px solid rgba(0,37,79,.08);
  border-radius: var(--rund);
  box-shadow: var(--schatten);
  padding: 44px;
  margin-bottom: 34px;
}
.pruefung .bild {
  background: var(--warm);
  border-radius: var(--rund);
  padding: 26px;
  display: flex; align-items: center; justify-content: center;
}
.pruefung .bild img { max-height: 250px; width: auto; }
.pruefung h2 { font-size: clamp(23px, 2.6vw, 30px); margin-bottom: 8px; }
.pruefung p  { font-size: 17px; }

.download-liste { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.download {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--schrift-titel);
  font-size: 15px; font-weight: 600;
  color: var(--blau);
  background: var(--rosa-hell);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 20px;
  text-decoration: none;
  transition: background .2s, border-color .2s, transform .18s;
}
.download:hover { background: var(--rosa); transform: translateY(-2px); }
.download svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 2; }

/* --- Hochschul-Karten ------------------------------------------------------ */

.hochschulen { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 50px; align-items: stretch; }

.karte-hs {
  background: var(--weiss);
  border-radius: var(--rund);
  padding: 40px 34px;
  box-shadow: var(--schatten-hoch);
  color: var(--text);
  display: flex;
  flex-direction: column;
}
.karte-hs .schule {
  font-family: var(--schrift-titel);
  font-size: 28px; font-weight: 700;
  color: var(--blau);
  margin: 0;
}
.karte-hs .schule-sub {
  font-size: 13px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--text-hell);
  margin: 6px 0 0;
}
.karte-hs .trenner { width: 56px; height: 3px; background: var(--rosa); border-radius: 2px; margin: 20px 0 6px; }
.karte-hs h3 { font-size: 18px; margin: 26px 0 10px; }
.karte-hs ul { margin: 0; padding-left: 20px; }
.karte-hs li { font-size: 15px; line-height: 1.8; }
.karte-hs li::marker { color: var(--rosa); }

/* --- Fussbereich ----------------------------------------------------------- */

.fuss {
  background: var(--blau-tief);
  color: rgba(255,255,255,.72);
  padding: 62px 0 40px;
  font-size: 16px;
}
.fuss .oben {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.fuss .wortmarke { font-size: 22px; }
.fuss .spalte h4 {
  font-family: var(--schrift-titel);
  font-size: 14px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--rosa);
  margin: 0 0 12px;
}
.fuss a { color: rgba(255,255,255,.78); text-decoration: none; display: block; margin-bottom: 8px; }
.fuss a:hover { color: var(--rosa); }
.fuss .unten { padding-top: 24px; font-size: 14px; color: rgba(255,255,255,.5); }

/* --- WhatsApp-Knopf -------------------------------------------------------- */

.wa-knopf {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 90;
  height: 62px;
  display: flex; align-items: center;
  gap: 0;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--wa);
  color: #fff;
  text-decoration: none;
  font-family: var(--schrift-titel);
  font-weight: 600; font-size: 16px;
  box-shadow: 0 10px 28px rgba(37,211,102,.4);
  overflow: hidden;
  transition: gap .28s ease, padding .28s ease, transform .2s ease;
}
.wa-knopf svg { width: 32px; height: 32px; fill: #fff; flex: none; }
.wa-knopf .wort {
  max-width: 0; opacity: 0;
  white-space: nowrap;
  transition: max-width .32s ease, opacity .24s ease;
}
.wa-knopf:hover { gap: 12px; padding: 0 24px 0 16px; transform: translateY(-2px); }
.wa-knopf:hover .wort { max-width: 240px; opacity: 1; }

/* --- Einblenden beim Scrollen ---------------------------------------------- */

.auf {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s ease, transform .7s ease;
}
.auf.da { opacity: 1; transform: none; }

/* --- Rechtstexte ------------------------------------------------------------ */

.rechtstext { padding: calc(var(--leiste-hoehe) + 60px) 0 90px; }
.rechtstext h1 { font-size: clamp(26px, 6.4vw, 44px); line-height: 1.2; color: var(--blau); margin: 0 0 14px; hyphens: auto; }
.rechtstext .stand { color: var(--text-hell); font-size: 16px; margin: 0 0 34px; }
.rechtstext h2 { font-size: clamp(19px, 4.4vw, 22px); margin: 40px 0 12px; }
.rechtstext p, .rechtstext li { font-size: 17px; }
.rechtstext ul { padding-left: 22px; }
.rechtstext li::marker { color: var(--rosa); }
.rechtstext .zeile { margin: 0; }
.kopf-dunkel { background: var(--blau); }

/* --- Telefon und Tablet ----------------------------------------------------- */

@media (max-width: 980px) {
  .schritte    { grid-template-columns: 1fr; gap: 42px; }
  .pruefung    { grid-template-columns: 1fr; gap: 28px; padding: 30px; }
  .hochschulen { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  body { font-size: 17px; }
  .abschnitt { padding: 62px 0; }
  .mitte, .mitte-eng { padding: 0 20px; }
  .kopf-kontakt { display: none; }
  .kopf .mitte { padding: 0 18px; }
  .wortmarke { font-size: 18px; }
  .start { padding: calc(var(--leiste-hoehe) + 10px) 20px 96px; }
  .kicker { font-size: 12px; letter-spacing: 3px; margin-bottom: 16px; }
  .start .stadt { letter-spacing: 4px; }
  .faecher { gap: .05em .4em; }
  .portrait-rahmen { width: 168px; height: 168px; }
  .zitat::before { font-size: 60px; }
  .balken { padding: 34px 0; }
  .balken .mitte { flex-direction: column; align-items: flex-start; gap: 20px; }
  .balken .text { flex: 0 1 auto; }
  .balken .knopf { width: 100%; justify-content: center; }
  .pruefung { padding: 22px; }
  .pruefung .bild { padding: 16px; }
  .download-liste .download { width: 100%; justify-content: center; }
  .karte-hs { padding: 28px 22px; }
  .karte-schritt { padding: 34px 22px 28px; }
  .fuss .oben { flex-direction: column; gap: 26px; }
  .wa-knopf { right: 16px; bottom: 16px; height: 58px; }
  .runter { display: none; }
  .rechtstext { padding: calc(var(--leiste-hoehe) + 34px) 0 70px; }
}

@media (max-width: 380px) {
  .wortmarke { font-size: 16px; }
  .burger { width: 46px; height: 46px; }
  .wa-knopf { height: 54px; padding: 0 13px; }
  .wa-knopf svg { width: 28px; height: 28px; }
}

/* --- Weniger Bewegung, wenn gewuenscht -------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .auf { opacity: 1; transform: none; }
}