/* ============================================================
   EVION – Wissen: Übersicht + Artikelseiten (gemeinsame Styles)
   Design-Tokens und Kartenstil 1:1 aus assets/css/style.css
   („Evion Wissen"-Sektion der Homepage) übernommen.
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --navy: #08162a;
  --navy-700: #162850;
  --navy-500: #1e3a6e;
  --teal-600: #0d9488;
  --teal-700: #0f766e;
  --teal: #0f766e;
  --teal-pale: #f0fdfa;
  --teal-border: #99f6e4;
  --blue-btn: var(--teal-600);
  --blue-hover: var(--teal-700);
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --text-md: #475569;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --transition: .22s cubic-bezier(.4,0,.2,1);
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--gray-900); background: var(--white); line-height: 1.6; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--teal-600); outline-offset: 2px; }

/* ---- NAV (wie Blog-/Leistungsseiten) ---- */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.97); backdrop-filter: blur(8px); border-bottom: 1px solid var(--gray-100); }
.nav__inner { max-width: 1120px; margin: 0 auto; padding: 0 24px; height: 64px; display: flex; align-items: center; gap: 16px; }
.nav__logo { font-size: 1.1rem; font-weight: 800; color: var(--navy); text-decoration: none; letter-spacing: -.02em; white-space: nowrap; }
.nav__logo span { color: var(--teal); }
.nav__crumb { font-size: .8rem; color: var(--gray-300); }
.nav__crumb-link { font-size: .8rem; color: var(--gray-500); font-weight: 500; text-decoration: none; white-space: nowrap; }
.nav__crumb-link:hover { color: var(--gray-900); }
.nav__crumb-current { font-size: .8rem; color: var(--gray-500); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 220px; }
.nav__back { margin-left: auto; flex-shrink: 0; display: flex; align-items: center; gap: 6px; font-size: .875rem; color: var(--gray-500); text-decoration: none; border: 1px solid var(--gray-200); padding: 5px 12px; border-radius: 8px; transition: all var(--transition); }
.nav__back:hover { color: var(--gray-900); background: var(--gray-50); border-color: var(--gray-300); }

/* ---- ÜBERSICHT (Kopf wie Homepage-Sektion) ---- */
.hub { max-width: 1680px; margin: 0 auto; padding: 72px 24px 96px; }
.hub__head { text-align: center; max-width: 640px; margin: 0 auto; }
.eyebrow { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; color: var(--teal-700); margin-bottom: 12px; display: block; }
.hub__title { font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.2; color: var(--gray-900); margin-bottom: 16px; }
.hub__intro { color: var(--text-md); font-size: 1.05rem; line-height: 1.7; }

/* ---- KARTEN (1:1 aus der Homepage-Sektion „Evion Wissen") ---- */
.wissen-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.wissen-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: 20px;
  padding: 28px;
  min-height: 230px;
  text-decoration: none;
  overflow: hidden;
  background: linear-gradient(135deg, #f8fafc 0%, rgba(226,232,240,.35) 100%);
  border: 1px solid #e2e8f0;
  transition: transform .22s cubic-bezier(.4,0,.2,1), box-shadow .22s cubic-bezier(.4,0,.2,1);
}
.wissen-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,.1); }
.wissen-card__emoji {
  position: absolute;
  bottom: -6px;
  right: 10px;
  font-size: 11rem;
  line-height: 1;
  opacity: .31;
  pointer-events: none;
  user-select: none;
  transform: rotate(10deg);
  transition: transform .22s ease, opacity .22s ease;
}
.wissen-card:hover .wissen-card__emoji { transform: scale(1.12) rotate(20deg); opacity: .41; }
.wissen-card__badge {
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 99px;
  padding: 3px 12px;
  font-size: .7rem;
  font-weight: 700;
  color: var(--gray-500);
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.wissen-card__body { position: relative; z-index: 1; }
.wissen-card__title { font-size: 1.35rem; font-weight: 700; color: var(--gray-900); margin: 0 0 8px; letter-spacing: -.02em; line-height: 1.25; }
.wissen-card__desc { font-size: .875rem; color: var(--gray-500); line-height: 1.6; max-width: 88%; }
.wissen-card__foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 22px; position: relative; z-index: 1; }
.wissen-card__cta { display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; font-weight: 700; color: var(--gray-900); }
.wissen-card__cta svg { transition: transform .2s; }
.wissen-card:hover .wissen-card__cta svg { transform: translateX(4px); }
.wissen-card__time { display: inline-flex; align-items: center; gap: 5px; font-size: .78rem; color: var(--gray-500); white-space: nowrap; }
@media (max-width: 1100px) {
  .wissen-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .wissen-grid { grid-template-columns: 1fr; }
  .hub { padding: 48px 16px 64px; }
}
@media (max-width: 480px) {
  .wissen-card { min-height: 200px; padding: 22px; }
  .wissen-card__emoji { font-size: 8.5rem; }
}

/* ---- ARTIKEL (Typografie wie blog/artikel.css) ---- */
.post { max-width: 720px; margin: 0 auto; padding: 48px 24px 80px; }
.post__head { margin-bottom: 36px; }
.post__tag { font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--teal); margin-bottom: 12px; }
.post__title { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.2; margin-bottom: 12px; }
.post__meta { font-size: .85rem; color: var(--gray-500); }

.post__lead { font-size: 1.08rem; color: var(--gray-700); margin-bottom: 24px; line-height: 1.75; }
.post__body h2 { font-size: 1.3rem; font-weight: 800; letter-spacing: -.02em; margin: 40px 0 14px; }
.post__body h3 { font-size: 1.05rem; font-weight: 700; margin: 28px 0 10px; }
.post__body p { font-size: .97rem; color: var(--gray-700); margin-bottom: 16px; line-height: 1.75; }
.post__body ul, .post__body ol { margin: 0 0 16px 22px; }
.post__body li { font-size: .97rem; color: var(--gray-700); margin-bottom: 8px; line-height: 1.7; }
.post__body a { color: var(--teal); }
.post__body strong { color: var(--gray-900); font-weight: 600; }

.post__hint { background: var(--teal-pale); border: 1px solid var(--teal-border); border-radius: var(--radius); padding: 16px 20px; margin: 24px 0; font-size: .9rem; color: var(--gray-700); line-height: 1.65; }
.post__hint strong { color: var(--teal-700); }

/* ---- FAQ ---- */
.post__faq { margin-top: 48px; border-top: 1px solid var(--gray-100); padding-top: 8px; }
.post__faq h2 { font-size: 1.3rem; font-weight: 800; letter-spacing: -.02em; margin: 32px 0 16px; }
.faq-item { border: 1px solid var(--gray-200); border-radius: var(--radius); margin-bottom: 10px; background: var(--white); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; font-size: .95rem; font-weight: 600; color: var(--gray-900); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.2rem; font-weight: 400; color: var(--gray-500); flex-shrink: 0; transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { font-size: .9rem; color: var(--gray-700); line-height: 1.7; padding: 0 20px 16px; }
.faq-item p a { color: var(--teal); }

/* ---- CTA-BAND (wie Blog) ---- */
.post__cta { background: var(--navy); border-radius: 12px; padding: 32px; text-align: center; margin-top: 48px; }
.post__cta h2 { color: var(--white); font-size: 1.2rem; font-weight: 800; margin-bottom: 8px; }
.post__cta p { color: rgba(255,255,255,.65); font-size: .9rem; margin-bottom: 18px; }
.post__cta a { display: inline-block; background: var(--blue-btn); color: var(--white); text-decoration: none; font-weight: 600; font-size: .9rem; padding: 12px 24px; border-radius: 8px; transition: background var(--transition); }
.post__cta a:hover { background: var(--blue-hover); }

/* ---- FIGUREN / DIAGRAMME ---- */
.post__figure { margin: 28px 0; }
.post__figure-canvas { background: var(--navy); border-radius: 12px; padding: 22px 14px; display: flex; align-items: center; justify-content: center; overflow-x: auto; }
.post__figure-canvas--light { background: var(--gray-50); border: 1px solid var(--gray-200); }
.post__figure-canvas svg { width: 100%; max-width: 100%; height: auto; }
.post__figure figcaption { font-size: .8rem; color: var(--gray-500); text-align: center; margin-top: 10px; line-height: 1.5; }
/* Mobil: Grafiken behalten lesbare Größe und werden horizontal scrollbar */
@media (max-width: 600px) {
  .post__figure-canvas { justify-content: flex-start; }
  .post__figure-canvas svg { width: 520px; max-width: none; }
}

/* ---- FORMEL-BOX ---- */
.post__formula { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: 12px; padding: 20px 24px; margin: 24px 0; text-align: center; }
.post__formula-line { font-size: 1.08rem; font-weight: 600; color: var(--gray-900); letter-spacing: .01em; line-height: 1.6; }
.post__formula-line sub, .post__formula-line sup { font-size: .7em; }
.post__formula-note { font-size: .82rem; color: var(--gray-500); margin-top: 10px; line-height: 1.6; }
.post__formula--example { background: var(--teal-pale); border-color: var(--teal-border); }
.post__formula--example .post__formula-note { color: #0e4f5f; }

/* ---- BALKEN-CHART (CSS) ---- */
.post__bars { display: flex; flex-direction: column; gap: 9px; margin: 24px 0; }
.post__bars-title { font-size: .8rem; font-weight: 700; color: var(--gray-500); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 2px; }
.post__bar { display: grid; grid-template-columns: 132px 1fr; align-items: center; gap: 12px; }
.post__bar-label { font-size: .82rem; font-weight: 600; color: var(--gray-700); line-height: 1.3; }
.post__bar-track { background: var(--gray-100); border-radius: 6px; height: 26px; overflow: hidden; }
.post__bar-fill { height: 100%; border-radius: 6px; display: flex; align-items: center; padding: 0 10px; color: var(--white); font-size: .74rem; font-weight: 700; white-space: nowrap; min-width: fit-content; }
.post__bar-fill--teal { background: linear-gradient(90deg, #0f766e, #0d9488); }
.post__bar-fill--navy { background: linear-gradient(90deg, #162850, #1e3a6e); }
.post__bar-fill--green { background: linear-gradient(90deg, #15803d, #16a34a); }
.post__bar-fill--amber { background: linear-gradient(90deg, #b45309, #d97706); }
.post__bar-fill--red { background: linear-gradient(90deg, #b91c1c, #dc2626); }
.post__bar-fill--gray { background: linear-gradient(90deg, #6b7280, #9ca3af); }
.post__bars-note { font-size: .78rem; color: var(--gray-500); margin-top: 4px; }
@media (max-width: 520px) { .post__bar { grid-template-columns: 1fr; gap: 4px; } }

/* ---- VERGLEICHS-BOXEN (wie Selbststudium) ---- */
.post__compare { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0; }
@media (max-width: 580px) { .post__compare { grid-template-columns: 1fr; } }
.post__compare-box { border-radius: var(--radius); padding: 18px 20px; }
.post__compare-box--a { background: #fef2f2; border: 1px solid #fecaca; }
.post__compare-box--b { background: #f0fdf4; border: 1px solid #bbf7d0; }
.post__compare-box--neutral { background: var(--gray-50); border: 1px solid var(--gray-200); }
.post__compare-title { font-size: .85rem; font-weight: 700; margin-bottom: 8px; }
.post__compare-box--a .post__compare-title { color: #dc2626; }
.post__compare-box--b .post__compare-title { color: #16a34a; }
.post__compare-box--neutral .post__compare-title { color: var(--gray-700); }
.post__compare-box p, .post__compare-box li { font-size: .875rem; color: var(--gray-700); line-height: 1.6; margin: 0; }
.post__compare-box ul { margin: 0 0 0 18px; }
.post__compare-box li { margin-bottom: 5px; }

/* ---- TABELLE ---- */
.post__table-wrap { overflow-x: auto; margin: 24px 0; }
.post__table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.post__table th { text-align: left; font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--gray-500); background: var(--gray-50); padding: 10px 12px; border-bottom: 2px solid var(--gray-200); white-space: nowrap; }
.post__table td { padding: 10px 12px; border-bottom: 1px solid var(--gray-100); color: var(--gray-700); line-height: 1.5; }
.post__table td strong { color: var(--gray-900); }
.post__table tr:last-child td { border-bottom: none; }

/* ---- WEITERLESEN ---- */
.post__related { margin-top: 48px; }
.post__related-title { font-size: 1rem; font-weight: 700; color: var(--gray-900); margin-bottom: 16px; }
.post__related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 12px; }
.post__related-card { display: flex; flex-direction: column; gap: 4px; border: 1px solid var(--gray-200); border-radius: var(--radius); padding: 14px 16px; text-decoration: none; transition: all var(--transition); background: var(--white); }
.post__related-card:hover { border-color: var(--teal-border); background: var(--teal-pale); }
.post__related-card span { font-size: .7rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--teal); }
.post__related-card strong { font-size: .85rem; font-weight: 600; color: var(--gray-700); line-height: 1.4; }