/* BKW Tools — Shared Styles */
:root {
  --bkw-primary:   #10B981;
  --bkw-primary-d: #059669;
  --bkw-dark:      #1E293B;
  --bkw-mid:       #475569;
  --bkw-light:     #F1F5F9;
  --bkw-border:    #E2E8F0;
  --bkw-green:     #10B981;
  --bkw-radius:    12px;
  --bkw-shadow:    0 4px 24px rgba(0,0,0,.08);
  --bkw-font:      'Inter', -apple-system, sans-serif;
}

.bkw-tool-wrap {
  font-family: var(--bkw-font);
  max-width: 780px;
  margin: 2rem auto;
  background: #fff;
  border-radius: var(--bkw-radius);
  box-shadow: var(--bkw-shadow);
  overflow: hidden;
}

/* ===== Buttons ===== */
.bkw-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4em;
  padding: .75rem 1.5rem;
  border-radius: 8px;
  font-family: var(--bkw-font);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  text-decoration: none;
  transition: background .18s, transform .12s;
}
.bkw-btn--cta {
  background: var(--bkw-primary);
  color: #fff;
  width: 100%;
  margin-top: 1.25rem;
  font-size: 1.05rem;
  padding: 1rem 2rem;
}
.bkw-btn--cta:hover { background: var(--bkw-primary-d); transform: translateY(-1px); }
.bkw-btn--ghost {
  background: transparent;
  border-color: var(--bkw-border);
  color: var(--bkw-mid);
  margin-top: .75rem;
  width: 100%;
}
.bkw-btn--ghost:hover { border-color: var(--bkw-primary); color: var(--bkw-primary); }

/* ===== Rechner ===== */
.bkw-rechner__inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  padding: 1.75rem;
  border-bottom: 1px solid var(--bkw-border);
}
.bkw-rechner__inputs label {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  font-size: .85rem;
  font-weight: 600;
  color: var(--bkw-mid);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.bkw-input-group {
  display: flex;
  align-items: center;
  background: var(--bkw-light);
  border: 1.5px solid var(--bkw-border);
  border-radius: 8px;
  overflow: hidden;
}
.bkw-input-group input {
  flex: 1;
  border: none;
  background: transparent;
  padding: .6rem .75rem;
  font-size: 1rem;
  font-family: var(--bkw-font);
  color: var(--bkw-dark);
  outline: none;
}
.bkw-unit {
  padding: 0 .75rem;
  font-size: .8rem;
  color: var(--bkw-mid);
  white-space: nowrap;
}
.bkw-slider-group {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .4rem 0;
}
.bkw-slider-group input[type="range"] {
  flex: 1;
  accent-color: var(--bkw-primary);
}
.bkw-rechner__results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.bkw-result-card {
  padding: 1.5rem 1rem;
  text-align: center;
  border-right: 1px solid var(--bkw-border);
}
.bkw-result-card:last-child { border-right: none; }
.bkw-result-card--highlight { background: var(--bkw-dark); color: #fff; }
.bkw-result-card--highlight .bkw-result-label,
.bkw-result-card--highlight .bkw-result-value { color: #fff; }
.bkw-result-icon { font-size: 1.5rem; margin-bottom: .5rem; }
.bkw-result-label { font-size: .78rem; font-weight: 600; color: var(--bkw-mid); text-transform: uppercase; letter-spacing: .06em; }
.bkw-result-value { font-size: 1.3rem; font-weight: 700; color: var(--bkw-dark); margin-top: .3rem; }
.bkw-rechner__chart { padding: 1.25rem 1.75rem; }
.bkw-rechner__chart canvas { width: 100%; height: auto; border-radius: 8px; }

@media (max-width: 600px) {
  .bkw-rechner__results { grid-template-columns: 1fr; }
  .bkw-result-card { border-right: none; border-bottom: 1px solid var(--bkw-border); }
}

/* ===== Quiz ===== */
.bkw-quiz__progress {
  height: 4px;
  background: var(--bkw-border);
}
.bkw-quiz__progress-bar {
  height: 4px;
  background: var(--bkw-primary);
  transition: width .35s ease;
  width: 0;
}
.bkw-quiz__step { padding: 2rem 2.5rem; }
.bkw-quiz__step-icon { font-size: 2.5rem; margin-bottom: .75rem; }
.bkw-quiz__step-num { font-size: .8rem; font-weight: 600; color: var(--bkw-primary); text-transform: uppercase; letter-spacing: .08em; margin-bottom: .5rem; }
.bkw-quiz__step-text { font-size: 1.35rem; font-weight: 700; color: var(--bkw-dark); margin: 0 0 1.5rem; }
.bkw-quiz__options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: .75rem;
}
.bkw-quiz__option {
  background: var(--bkw-light);
  border: 2px solid var(--bkw-border);
  border-radius: 10px;
  padding: .9rem 1.1rem;
  text-align: left;
  font-family: var(--bkw-font);
  font-size: .95rem;
  color: var(--bkw-dark);
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.bkw-quiz__option:hover { border-color: var(--bkw-primary); background: #ECFDF5; }
.bkw-quiz__rec { padding: 2.5rem; text-align: center; }
.bkw-quiz__rec-icon { font-size: 3rem; margin-bottom: 1rem; }
.bkw-quiz__rec-title { font-size: 1.5rem; font-weight: 700; color: var(--bkw-dark); margin: 0 0 .75rem; }
.bkw-quiz__rec-text { font-size: 1rem; color: var(--bkw-mid); line-height: 1.6; max-width: 500px; margin: 0 auto; }

/* ===== React containers (Konfigurator & Vergleich) — basic shell ===== */
#bkw-konfigurator,
#bkw-vergleich {
  min-height: 300px;
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bkw-mid);
  font-size: .95rem;
}
#bkw-konfigurator::before { content: '⏳ Konfigurator wird geladen …'; }
#bkw-vergleich::before   { content: '⏳ Vergleich wird geladen …'; }