/* ===========================================================================
   Zertifikatsnavigator – BFS Kälte-Klima-Technik
   "Future Light" – helles Glassmorphism-UI, Marken-Akzente Gold/Blau/Navy
   Vanilla CSS, mobile-first, keine externen Abhängigkeiten.
   =========================================================================== */

:root {
  /* Marken-Farben */
  --gold:        #c1a384;
  --gold-bright: #d8b894;
  --gold-dark:   #9c7e5d;
  --blue:        #4f709d;
  --blue-bright: #6b8fc2;
  --blue-dark:   #3d5a82;
  --navy:        #263d58;

  /* Hintergrund-Ebenen (hell) */
  --bg-0: #eef1f6;
  --bg-1: #f8fafc;

  /* Text */
  --text:      #263d58;
  --text-soft: #5a6b80;
  --text-dim:  #8593a6;

  /* Glas / Konturen */
  --glass:        rgba(255, 255, 255, 0.72);
  --glass-strong: rgba(255, 255, 255, 0.92);
  --stroke:        rgba(38, 61, 88, 0.10);
  --stroke-strong: rgba(38, 61, 88, 0.18);

  /* Effekte */
  --glow-gold: 0 10px 34px -10px rgba(193, 163, 132, 0.55);
  --glow-blue: 0 10px 34px -10px rgba(79, 112, 157, 0.45);
  --shadow:    0 24px 60px -22px rgba(38, 61, 88, 0.30);
  --shadow-sm: 0 12px 30px -16px rgba(38, 61, 88, 0.25);

  --radius:    18px;
  --radius-sm: 12px;
  --maxw:      880px;

  --font: "Segoe UI", "Helvetica Neue", Arial, system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, monospace;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.6;
  background:
    radial-gradient(1200px 620px at 12% -12%, rgba(79, 112, 157, 0.16), transparent 60%),
    radial-gradient(1050px 720px at 112% 6%, rgba(193, 163, 132, 0.20), transparent 55%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 70%);
  background-attachment: fixed;
}
::selection { background: rgba(193, 163, 132, 0.35); color: var(--navy); }

/* Ambiente: schwebende Farb-Schwaden */
body::before {
  content: "";
  position: fixed;
  inset: -20vmax;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(38vmax 38vmax at 22% 18%, rgba(79, 112, 157, 0.14), transparent 60%),
    radial-gradient(34vmax 34vmax at 82% 72%, rgba(193, 163, 132, 0.18), transparent 60%);
  filter: blur(20px);
  animation: drift 26s ease-in-out infinite alternate;
}
/* Ambiente: feines HUD-Raster, zu den Rändern ausgeblendet */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(38, 61, 88, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38, 61, 88, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask: radial-gradient(120% 90% at 50% 22%, #000 30%, transparent 80%);
          mask: radial-gradient(120% 90% at 50% 22%, #000 30%, transparent 80%);
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(2%, 3%, 0) scale(1.06); }
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  text-align: center;
  padding: 64px 20px 60px;
}
.hero__inner { max-width: var(--maxw); margin: 0 auto; }
.hero__icon {
  display: inline-flex;
  margin-bottom: 20px;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--glow-blue), 0 0 0 1px var(--stroke), 0 18px 36px -16px rgba(38, 61, 88, 0.4);
  animation: float 7s ease-in-out infinite;
}
.hero__icon svg { display: block; width: 64px; height: 64px; }
.hero__title {
  margin: 0 0 10px;
  font-size: clamp(1.9rem, 5.2vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.1;
  background: linear-gradient(120deg, var(--navy) 8%, var(--blue) 60%, var(--gold-dark) 100%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.hero__subtitle {
  margin: 0 0 18px;
  font-size: clamp(1rem, 2.6vw, 1.28rem);
  color: var(--gold-dark);
  font-weight: 600;
}
.hero__intro {
  margin: 0 auto;
  max-width: 660px;
  font-size: 1rem;
  color: var(--text-soft);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-7px); }
}

/* ---------- Karten-Basis (Glas) ---------- */
.scope__details,
.wizard,
.faq__item,
.disclosure {
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
          backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
}

/* ---------- Geltungsbereich (einklappbar) ---------- */
.scope { margin: 0 auto 16px; }
.scope__details {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.scope__subheading {
  color: var(--navy);
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: .2px;
  margin: 18px 0 4px;
}
.scope__subheading:first-child { margin-top: 0; }
.scope__intro { margin: 0 0 6px; color: var(--text-soft); }
.scope__list { margin: 0; padding-left: 20px; color: var(--text-soft); }
.scope__list li { margin: 4px 0; }
.scope__list li::marker { color: var(--blue); }

/* ---------- Wizard ---------- */
.wizard {
  position: relative;
  margin: 0 auto 44px;
  padding: 32px 30px 34px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
/* Gradient-Rand */
.wizard::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg,
    rgba(193, 163, 132, 0.75),
    rgba(79, 112, 157, 0.45) 50%,
    rgba(255, 255, 255, 0.2) 80%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
}
/* Akzentlinie oben */
.wizard::after {
  content: "";
  position: absolute;
  top: 0; left: 12%; right: 12%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.wizard > * { position: relative; z-index: 1; }

.wizard__progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.4px;
}
.wizard__dots { display: flex; gap: 7px; }
.wizard__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: rgba(38, 61, 88, 0.15);
  transition: background .25s, box-shadow .25s;
}
.wizard__dot--active { background: var(--blue); box-shadow: 0 0 10px rgba(79, 112, 157, 0.6); }
.wizard__dot--done   { background: var(--gold); box-shadow: 0 0 8px rgba(193, 163, 132, 0.7); }

.wizard__question {
  margin: 0 0 8px;
  font-size: clamp(1.3rem, 3.2vw, 1.55rem);
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--navy);
}
.wizard__hint {
  margin: 0 0 24px;
  color: var(--text-soft);
  font-size: .96rem;
}

/* Antwort-Optionen */
.options { display: grid; gap: 14px; }
.option {
  position: relative;
  display: block;
  width: 100%;
  text-align: left;
  background: var(--glass-strong);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-sm);
  padding: 18px 20px 18px 22px;
  cursor: pointer;
  font: inherit;
  color: var(--text);
  overflow: hidden;
  transition: border-color .2s, box-shadow .25s, transform .12s, background .2s;
}
/* Akzentbalken links */
.option::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--gold), var(--blue));
  opacity: 0;
  transform: scaleY(.3);
  transition: opacity .25s, transform .25s;
}
.option:hover {
  border-color: rgba(79, 112, 157, 0.55);
  box-shadow: var(--glow-blue);
  transform: translateY(-2px);
}
.option:hover::before { opacity: 1; transform: scaleY(1); }
.option:active { transform: translateY(0); }
.option:focus-visible {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(193, 163, 132, 0.4), var(--glow-gold);
}
.option__title { display: block; font-weight: 700; font-size: 1.04rem; color: var(--navy); }
.option__desc  { display: block; margin-top: 4px; color: var(--text-soft); font-size: .9rem; }

/* Navigations-Buttons */
.wizard__nav { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  position: relative;
  font: inherit;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 12px 22px;
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: background .2s, color .2s, border-color .2s, box-shadow .25s, transform .12s;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(193, 163, 132, 0.45); }
.btn--ghost {
  background: rgba(255, 255, 255, 0.6);
  color: var(--blue-dark);
  border-color: var(--stroke-strong);
}
.btn--ghost:hover { color: var(--navy); border-color: var(--blue); box-shadow: var(--glow-blue); }
.btn--primary {
  background: linear-gradient(135deg, var(--blue-bright), var(--blue));
  color: #fff;
}
.btn--primary:hover { box-shadow: var(--glow-blue); }
.btn--gold {
  background: linear-gradient(135deg, var(--gold-bright), var(--gold));
  color: var(--navy);
  font-weight: 700;
  box-shadow: 0 8px 22px -10px rgba(193, 163, 132, 0.8);
}
.btn--gold:hover { box-shadow: var(--glow-gold); transform: translateY(-2px); }

/* ---------- Ergebniskarte ---------- */
.result { animation: rise .4s ease both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.result__badge {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  background: linear-gradient(135deg, var(--navy), var(--blue-dark));
  border-radius: 12px;
  padding: 12px 22px;
  margin-bottom: 16px;
  box-shadow: var(--glow-blue);
  overflow: hidden;
}
.result__badge .code {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: .5px;
  background: linear-gradient(120deg, #fff, var(--gold-bright));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.result__badge .nick { font-size: .95rem; color: var(--gold-bright); }

.result__summary {
  font-size: 1.16rem;
  color: var(--navy);
  margin: 0 0 6px;
  font-weight: 700;
}
.result__lead { color: var(--text-soft); margin: 0 0 20px; font-size: .96rem; }

.result__also {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--stroke);
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 0 0 18px;
  font-size: .95rem;
  color: var(--text-soft);
}
.result__also strong { color: var(--navy); }
.result__also--warn {
  background: linear-gradient(135deg, rgba(251, 243, 232, 0.9), rgba(255, 255, 255, 0.7));
  border-left-color: var(--gold-dark);
}

/* Weg-Schrittkette */
.route { margin: 0 0 18px; }
.route__label {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--blue);
  margin-bottom: 10px;
}
.chain {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 10px;
}
.chain__step {
  position: relative;
  background: var(--glass-strong);
  border: 1px solid var(--stroke);
  border-radius: 10px;
  padding: 11px 16px;
  font-size: .92rem;
  color: var(--navy);
  display: flex;
  align-items: center;
}
/* Pfeil zwischen den Schritten */
.chain__step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -13px;
  color: var(--blue);
  font-weight: 700;
  z-index: 1;
}
.chain__step--goal {
  background: linear-gradient(135deg, var(--gold-bright), var(--gold));
  border-color: transparent;
  color: var(--navy);
  font-weight: 800;
  box-shadow: var(--glow-gold);
}
.course-note { color: var(--gold-dark); font-style: italic; }

@media (max-width: 560px) {
  /* Auf schmalen Screens: Kette vertikal, Pfeile nach unten */
  .chain { flex-direction: column; align-items: stretch; }
  .chain__step:not(:last-child)::after {
    content: "↓";
    right: auto; left: 50%;
    bottom: -16px; top: auto;
    transform: translateX(-50%);
  }
}

/* Aufklappbare Details (Progressive Disclosure) */
.disclosure {
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
}
.disclosure__toggle {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  font: inherit;
  font-weight: 600;
  color: var(--navy);
  padding: 15px 18px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background .2s, color .2s;
}
.disclosure__toggle:hover { background: rgba(38, 61, 88, 0.04); }
.disclosure__toggle:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px rgba(193, 163, 132, 0.5);
}
.disclosure__icon { transition: transform .25s; color: var(--gold-dark); flex: 0 0 auto; }
.disclosure[open] .disclosure__icon { transform: rotate(135deg); }
.disclosure[open] .disclosure__toggle { color: var(--blue-dark); }
.disclosure__body {
  padding: 0 18px 16px;
  color: var(--text-soft);
  font-size: .95rem;
}
.disclosure__body dl { margin: 0; }
.disclosure__body dt { font-weight: 700; color: var(--navy); margin-top: 14px; }
.disclosure__body dt:first-child { margin-top: 0; }
.disclosure__body dd { margin: 3px 0 0; }

.result__note {
  margin-top: 16px;
  font-size: .9rem;
  color: var(--text-dim);
  font-style: italic;
}

/* ---------- Kurs-Karten (Details zu Kursen / Maßnahmen) ---------- */
.courses { display: grid; gap: 14px; }
.course {
  background: var(--glass-strong);
  border: 1px solid var(--stroke);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}
.course__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.course__name {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.2px;
  color: var(--navy);
}
.course__dauer {
  flex: 0 0 auto;
  font-size: .78rem;
  font-weight: 700;
  color: var(--gold-dark);
  background: rgba(193, 163, 132, 0.16);
  border: 1px solid rgba(193, 163, 132, 0.35);
  border-radius: 999px;
  padding: 3px 11px;
  white-space: nowrap;
}
.course__note {
  margin: 8px 0 0;
  font-size: .88rem;
  color: var(--text-dim);
  font-style: italic;
}
.termine { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 8px; }
.termin {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 16px;
  padding: 9px 12px;
  border-radius: 10px;
  background: var(--bg-1);
  border: 1px solid var(--stroke);
}
.termin__cell { display: inline-flex; align-items: center; gap: 6px; font-size: .9rem; color: var(--text-soft); }
.termin__icon { color: var(--blue); flex: 0 0 auto; }
.termin__date { font-weight: 700; color: var(--navy); }
.termin__free {
  margin-left: auto;
  font-weight: 700;
  font-size: .8rem;
  border-radius: 999px;
  padding: 3px 11px;
  white-space: nowrap;
}
.termin__free.is-open { color: #1f7a4d; background: rgba(31, 122, 77, 0.12); }
.termin__free.is-full { color: #b0392f; background: rgba(176, 57, 47, 0.12); }
@media (max-width: 460px) {
  .termin__free { margin-left: 0; }
}

/* ---------- FAQ ---------- */
.section-heading {
  position: relative;
  font-size: clamp(1.4rem, 3.5vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -0.3px;
  margin: 0 0 28px;
  text-align: center;
  background: linear-gradient(120deg, var(--navy), var(--blue));
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}
.section-heading::after {
  content: "";
  display: block;
  width: 70px;
  height: 2px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.faq { margin-bottom: 60px; }
.faq__list { display: grid; gap: 12px; }
.faq__item {
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s, box-shadow .25s;
}
.faq__item:hover { border-color: var(--stroke-strong); }
.faq__item[open] { border-color: rgba(79, 112, 157, 0.4); }
.faq__q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  font: inherit;
  font-weight: 600;
  color: var(--navy);
  padding: 17px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  transition: color .2s;
}
.faq__q:hover { color: var(--blue); }
.faq__q:focus-visible { outline: none; box-shadow: inset 0 0 0 2px rgba(193, 163, 132, 0.5); }
.faq__icon { color: var(--blue); transition: transform .25s; flex: 0 0 auto; }
.faq__item[open] .faq__icon { transform: rotate(135deg); color: var(--gold-dark); }
.faq__a { padding: 0 20px 18px; color: var(--text-soft); font-size: .95rem; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.55);
  -webkit-backdrop-filter: blur(12px);
          backdrop-filter: blur(12px);
  color: var(--text-soft);
  padding: 32px 0 40px;
  font-size: .85rem;
}
.site-footer__disclaimer { margin: 0 0 16px; max-width: 720px; }
.site-footer__links { margin: 0; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.site-footer__links a {
  color: var(--blue-dark);
  text-decoration: none;
  font-weight: 600;
  transition: color .2s;
}
.site-footer__links a:hover { color: var(--gold-dark); text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 560px) {
  .hero { padding: 44px 18px 44px; }
  .wizard { padding: 24px 20px 26px; border-radius: 14px; }
  .result__badge { width: 100%; }
  .wizard__nav .btn { flex: 1 1 auto; justify-content: center; }
}

/* Reduzierte Bewegung respektieren */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}