/* Seite zur ATR-Strategie. Gleiche Farb- und Schriftwelt wie stil.css,
   aber auf eine lange, ruhige Leseseite ausgelegt. */

:root {
  --tief:        #0B1220;
  --weich:       #0E1628;
  --karte:       #11192E;
  --karte-hell:  #172338;
  --linie:       #1B2740;
  --linie-stark: #2A3A5C;

  --text:        #F5F7FA;
  --text-2:      #B9C2D1;
  --text-3:      #98A2B4;
  --text-4:      #7C879B;

  --akzent:      #FFFFFF;
  --akzent-haar: rgba(255,255,255,0.20);

  --serif: 'Source Serif 4', 'Iowan Old Style', Charter, Georgia, serif;
  --sans:  'Instrument Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --rand: 1080px;
}

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

body {
  margin: 0;
  background: var(--tief);
  color: var(--text-2);
  font: 400 15px/1.7 var(--sans);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.raster { width: 100%; max-width: var(--rand); margin: 0 auto; padding: 0 32px; }
.raster.schmal { max-width: 760px; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--text);
  letter-spacing: -0.014em;
  margin: 0;
}
h2 { font-size: 26px; line-height: 1.24; margin-bottom: 12px; }
h3 { font-size: 19px; line-height: 1.3; }
h4 { font-size: 15.5px; }
p { margin: 0 0 13px; }
strong { color: var(--text); font-weight: 500; }

.augenbraue {
  font: 500 12px/1 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 16px;
}
.tick { width: 5px; height: 5px; border-radius: 50%; background: var(--akzent); display: inline-block; flex-shrink: 0; }

.fuehrung { font: 400 18px/1.6 var(--serif); color: var(--text); max-width: 62ch; }

/* ---------- Kopf ---------- */

.hinweisleiste {
  background: var(--weich);
  border-bottom: 1px solid var(--linie);
  font: 400 12.5px/1.5 var(--sans);
  color: var(--text-3);
  display: flex; align-items: center; justify-content: center; gap: 11px;
  padding: 11px 24px;
  text-align: center;
}

.kopf {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,18,32,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--linie);
  transform: translateZ(0);
}
.kopf-innen {
  max-width: var(--rand); margin: 0 auto; padding: 0 32px;
  height: 58px; display: flex; align-items: center; gap: 20px;
}
.marke { display: flex; align-items: center; gap: 12px; text-decoration: none; flex-shrink: 0; }
.marke-zeichen {
  width: 32px; height: 32px;
  border: 1px solid var(--linie-stark); border-radius: 3px;
  display: grid; place-items: center; color: var(--text);
}
.marke-text { display: flex; flex-direction: column; line-height: 1.2; }
.marke-text strong { font: 500 15px/1.2 var(--sans); color: var(--text); }
.marke-text em {
  font: 400 11.5px/1.4 var(--sans); font-style: normal;
  color: var(--text-4);
}
.kopf-rechts { margin-left: auto; display: flex; gap: 10px; }

/* ---------- Knöpfe ---------- */

.knopf, .knopf-geist {
  display: inline-flex; align-items: center; justify-content: center;
  font: 500 14px/1 var(--sans);
  text-decoration: none;
  padding: 13px 24px; border-radius: 4px;
  transition: background .16s, color .16s, border-color .16s;
  white-space: nowrap;
}
.knopf { background: var(--akzent); color: var(--tief); border: 1px solid var(--akzent); }
.knopf:hover { background: #E4E8EF; border-color: #E4E8EF; }
.knopf-geist { background: transparent; color: var(--text); border: 1px solid var(--akzent-haar); }
.knopf-geist:hover { border-color: var(--akzent); }
.kopf-rechts .knopf, .kopf-rechts .knopf-geist { padding: 10px 17px; font-size: 13px; }
.knopfreihe { display: flex; gap: 14px; flex-wrap: wrap; margin: 26px 0 0; }
.knopfreihe.mitte { justify-content: center; }

/* ---------- Einstieg ---------- */

.hero { position: relative; overflow: hidden; background: var(--tief); }
.hero-bild { position: absolute; inset: 0; }
.hero-bild img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: 60% 50%;
  filter: saturate(0.95) contrast(1.06) brightness(0.86);
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(11,18,32,0.34) 0%, rgba(11,18,32,0.52) 58%, var(--tief) 100%),
    linear-gradient(90deg, rgba(11,18,32,0.88) 0%, rgba(11,18,32,0.42) 56%, rgba(11,18,32,0.08) 100%);
  pointer-events: none;
}
.hero-innen { position: relative; z-index: 2; padding-top: 62px; padding-bottom: 66px; }

h1 {
  text-shadow: 0 2px 22px rgba(0,0,0,0.75);
  font-size: clamp(36px, 5.4vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.025em;
  margin: 0 0 16px;
}
.hero-satz {
  font: 400 clamp(17px, 1.7vw, 20px)/1.58 var(--serif);
  color: var(--text);
  text-shadow: 0 1px 14px rgba(0,0,0,0.7);
  max-width: 54ch;
  margin: 0 0 30px;
}

.hero-fakten { display: flex; flex-wrap: wrap; gap: 34px; }
.hero-fakten span {
  display: flex; flex-direction: column; gap: 3px;
  font: 400 12.5px/1.3 var(--sans);
  color: var(--text-3);
}
.hero-fakten strong {
  font: 400 27px/1 var(--serif);
  color: var(--text);
  letter-spacing: -0.02em;
}

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

.abschnitt { padding: 68px 0; border-bottom: 1px solid var(--linie); }
.abschnitt.dunkler { background: var(--weich); }
.abschnitt-kopf { max-width: 68ch; margin-bottom: 44px; }

/* ---------- Setup-Familien ---------- */

.familien { display: grid; gap: 26px; }

.familie {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 30px;
  align-items: center;
  background: var(--karte);
  border: 1px solid var(--linie-stark);
  border-radius: 6px;
  overflow: hidden;
}
.familie:nth-child(even) .familie-text { order: -1; padding: 30px 0 30px 32px; }
.familie:nth-child(even) figure { margin-left: 0; }

.familie figure { margin: 0; height: 100%; min-height: 230px; position: relative; }
.familie figure img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.03);
}
.familie-text { padding: 30px 32px 30px 0; }
.familie:nth-child(even) .familie-text { padding: 30px 0 30px 32px; }

.nummer {
  display: block;
  font: 400 13px/1 var(--sans);
  color: var(--text-4);
  letter-spacing: 0.1em;
  margin-bottom: 9px;
}
.familie-text h3 { margin-bottom: 11px; }
.familie-text p { font-size: 14.5px; }
.lernst {
  margin: 16px 0 0;
  padding-top: 13px;
  border-top: 1px solid var(--linie);
  font-size: 13.5px;
  color: var(--text-3);
}

/* ---------- Bausteine ---------- */

.bausteine {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--linie);
  border: 1px solid var(--linie);
  border-radius: 6px;
  overflow: hidden;
}
.baustein { background: var(--tief); padding: 26px 24px; }
.baustein h3 { font-size: 17px; margin-bottom: 9px; }
.baustein p { font-size: 14px; color: var(--text-3); margin: 0; }
.abschnitt.dunkler .baustein { background: var(--weich); }

.breitbild {
  margin: 34px 0 0;
  border: 1px solid var(--linie-stark);
  border-radius: 6px;
  overflow: hidden;
  background: var(--karte);
}
.breitbild img { width: 100%; filter: saturate(0.9) contrast(1.03); }
.breitbild figcaption {
  font-size: 13.5px;
  color: var(--text-4);
  padding: 13px 18px 15px;
  border-top: 1px solid var(--linie);
}

/* ---------- Ablauf ---------- */

.ablauf { list-style: none; counter-reset: schritt; margin: 30px 0 0; padding: 0; }
.ablauf li {
  counter-increment: schritt;
  position: relative;
  padding: 0 0 22px 52px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--linie);
  font-size: 14.5px;
  color: var(--text-3);
}
.ablauf li:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.ablauf li::before {
  content: counter(schritt, decimal-leading-zero);
  position: absolute; left: 0; top: 1px;
  font: 400 15px/1 var(--serif);
  color: var(--text-4);
  border: 1px solid var(--linie-stark);
  border-radius: 50%;
  width: 34px; height: 34px;
  display: grid; place-items: center;
}
.ablauf strong { display: block; color: var(--text); font-weight: 500; margin-bottom: 4px; font-size: 15.5px; }

/* ---------- Quellen ---------- */

.quellen { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }

.quelle {
  display: flex; flex-direction: column;
  background: var(--karte);
  border: 1px solid var(--linie-stark);
  border-radius: 6px;
  padding: 24px 24px 26px;
  text-decoration: none;
  transition: border-color .18s, background .18s;
}
.quelle:hover { border-color: var(--akzent-haar); background: var(--karte-hell); }
.quelle-kopf {
  font: 500 11.5px/1 var(--sans);
  letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 12px;
}
.quelle-titel { font: 400 18px/1.32 var(--serif); color: var(--text); margin-bottom: 6px; }
.quelle-meta { font-size: 13px; color: var(--text-4); margin-bottom: 13px; }
.quelle-text { font-size: 14px; color: var(--text-3); }
.quelle::after {
  content: 'Studie öffnen';
  margin-top: 16px;
  font: 500 13px/1 var(--sans);
  color: var(--text-2);
  border-bottom: 1px solid var(--akzent-haar);
  padding-bottom: 5px;
  align-self: flex-start;
}
.quelle:hover::after { color: var(--text); border-color: var(--akzent); }

.quellen-fuss {
  margin: 26px 0 0;
  font-size: 14px;
  color: var(--text-4);
  max-width: 76ch;
}
.quellen-fuss em { color: var(--text-3); }

/* ---------- Ehrlicher Rahmen ---------- */

.ehrlich { margin-top: 26px; }
.ehrlich p {
  padding: 18px 20px;
  margin-bottom: 12px;
  background: var(--karte);
  border-left: 2px solid var(--linie-stark);
  border-radius: 0 4px 4px 0;
  font-size: 14.5px;
}

/* ---------- Abschluss und Fuß ---------- */

.abschluss { padding: 76px 0; text-align: center; border-bottom: 1px solid var(--linie); }
.abschluss-innen { max-width: 720px; }
.abschluss h2 { font-size: 30px; line-height: 1.2; margin-bottom: 12px; }
.abschluss p { color: var(--text-3); font-size: 16.5px; }

/* ---------- Kauf ---------- */

.hero-klein {
  margin: 16px 0 0;
  font-size: 13.5px;
  color: var(--text-4);
}
.hero-klein a { color: var(--text-2); text-decoration: none; border-bottom: 1px solid var(--akzent-haar); }
.hero-klein a:hover { color: var(--text); border-color: var(--akzent); }

.kauf-karte {
  margin: 34px auto 0;
  max-width: 480px;
  text-align: left;
  background: var(--karte);
  border: 1px solid var(--linie);
  border-radius: 6px;
  padding: 28px 28px 24px;
}
.kauf-oben {
  display: flex; align-items: center; gap: 8px;
  font: 600 11.5px/1 var(--sans);
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-4);
  margin: 0 0 14px;
}
.kauf-preis {
  font: 400 46px/1 var(--serif);
  color: var(--text);
  letter-spacing: -0.02em;
  display: flex; align-items: baseline; gap: 6px;
  margin-bottom: 18px;
}
.kauf-preis span { font-size: 22px; color: var(--text-3); }
.kauf-liste { list-style: none; margin: 0 0 22px; padding: 0; }
.kauf-liste li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 9px;
}
.kauf-liste li::before {
  content: ""; position: absolute; left: 4px; top: 9px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--linie-stark);
}
.kauf-knopf { display: block; text-align: center; padding: 14px 20px; font-size: 14.5px; }
.kauf-klein {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.66;
  color: var(--text-4);
}
.kauf-klein a { color: var(--text-3); }

@media (max-width: 640px) {
  .kauf-karte { padding: 24px 20px 20px; }
  .kauf-preis { font-size: 40px; }
}

.fuss { padding: 52px 0 0; background: var(--weich); }
.fuss-raster {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 44px; padding-bottom: 46px;
}
.fuss-spalte { display: flex; flex-direction: column; gap: 10px; }
.fuss-spalte h4 {
  font: 600 12px/1 var(--sans);
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-4);
  margin-bottom: 7px;
}
.fuss-spalte a { font-size: 14.5px; color: var(--text-3); text-decoration: none; width: fit-content; transition: color .16s; }
.fuss-spalte a:hover { color: var(--text); }
.fuss-marke { margin-bottom: 5px; }
.fuss-klein { font-size: 13.5px; color: var(--text-4); line-height: 1.6; margin: 0; }

.risiko { border-top: 1px solid var(--linie); padding-top: 22px; padding-bottom: 38px; }
.risiko p { font-size: 13.5px; line-height: 1.72; color: var(--text-4); max-width: 96ch; margin: 0; }
.risiko strong { color: var(--text-3); font-weight: 500; }

/* ---------- Schmalere Schirme ---------- */

@media (max-width: 900px) {
  .familie, .familie:nth-child(even) { grid-template-columns: 1fr; gap: 0; }
  .familie figure { min-height: 210px; }
  .familie-text,
  .familie:nth-child(even) .familie-text { order: 0; padding: 24px 24px 26px; }
  .fuss-raster { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero-innen { padding-top: 56px; padding-bottom: 58px; }
}

@media (max-width: 640px) {
  .raster, .kopf-innen { padding-left: 20px; padding-right: 20px; }
  .abschnitt { padding: 48px 0; }
  .abschluss { padding: 56px 0; }
  h2 { font-size: 23px; }
  .abschluss h2 { font-size: 25px; }
  .fuss-raster { grid-template-columns: 1fr; }
  .hero-fakten { gap: 22px 28px; }
  .marke-text em { display: none; }
  .kopf-rechts .knopf-geist { display: none; }
  .hinweisleiste { font-size: 11.5px; text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}