/* Ergänzende, projektweite Regeln neben Tailwind CSS. */
:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 50;
  border-radius: 0.5rem;
  background: #312e81;
  color: #fff;
  padding: 0.75rem 1rem;
  font-weight: 600;
  transition: top 150ms ease-in-out;
}

.skip-link:focus {
  top: 1rem;
}

:focus-visible {
  outline: 3px solid #4f46e5;
  outline-offset: 3px;
}

.card {
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  background: #fff;
  padding: 1.25rem;
  box-shadow: 0 4px 16px rgb(15 23 42 / 0.04);
}

@media (min-width: 640px) {
  .card {
    padding: 1.5rem;
  }
}

.card-heading {
  margin-bottom: 1.25rem;
}

.eyebrow {
  color: #4f46e5;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title {
  color: #0f172a;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
}

.section-intro {
  color: #64748b;
  font-size: 0.875rem;
  line-height: 1.5;
  margin-top: 0.35rem;
}

.placeholder {
  align-items: center;
  border: 1px dashed #cbd5e1;
  border-radius: 0.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 10rem;
  padding: 1.5rem;
  text-align: center;
}

.placeholder-icon {
  align-items: center;
  background: #eef2ff;
  border-radius: 9999px;
  color: #4f46e5;
  display: inline-flex;
  font-size: 1.25rem;
  height: 2.5rem;
  justify-content: center;
  margin-bottom: 0.75rem;
  width: 2.5rem;
}

.privacy-note { color: #475569; font-size: 0.8rem; margin-top: 0.75rem; }
.notice { margin-top: 0.75rem; border-left: 4px solid #f59e0b; border-radius: 0.5rem; background: #fffbeb; color: #92400e; font-size: 0.8rem; line-height: 1.5; padding: 0.65rem 0.75rem; }
.charts-area { width: 100%; }
.charts-grid { display: grid; gap: 1rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.chart-card { border: 1px solid #e2e8f0; border-radius: 0.85rem; background: #fff; padding: 1rem; min-width: 0; }
.chart-title { color: #0f172a; font-size: 1rem; font-weight: 700; }
.chart-description, .chart-summary { color: #64748b; font-size: 0.8rem; line-height: 1.45; margin-top: 0.3rem; }
.chart-summary { color: #334155; margin-top: 0.75rem; }
.chart-canvas-wrap { height: 15rem; margin: 0.75rem auto 0; max-width: 20rem; position: relative; width: 100%; }
@media (max-width: 900px) { .charts-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .charts-grid { grid-template-columns: 1fr; } .chart-canvas-wrap { height: 13rem; } }

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
  }
}

.form-group {
  border-top: 1px solid #e2e8f0;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
}

.form-group:first-of-type {
  border-top: 0;
  margin-top: 0;
  padding-top: 0;
}

.form-legend {
  color: #1e293b;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.field label {
  color: #334155;
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.field input,
.field select {
  background: #fff;
  border: 1px solid #94a3b8;
  border-radius: 0.5rem;
  color: #0f172a;
  font: inherit;
  min-height: 2.75rem;
  padding: 0.6rem 0.75rem;
  width: 100%;
}

.field input:focus,
.field select:focus {
  border-color: #4f46e5;
  outline: 2px solid #c7d2fe;
  outline-offset: 0;
}

.input-with-unit {
  align-items: stretch;
  display: flex;
}

.input-with-unit input {
  border-bottom-right-radius: 0;
  border-right: 0;
  border-top-right-radius: 0;
}

.input-with-unit span {
  align-items: center;
  background: #f1f5f9;
  border: 1px solid #94a3b8;
  border-bottom-right-radius: 0.5rem;
  border-left: 0;
  border-top-right-radius: 0.5rem;
  color: #475569;
  display: flex;
  font-size: 0.75rem;
  font-weight: 600;
  justify-content: center;
  min-width: 3.75rem;
  padding: 0 0.5rem;
  white-space: nowrap;
}

.help-text,
.error-message {
  font-size: 0.75rem;
  line-height: 1.45;
  margin-top: 0.35rem;
}

.help-text { color: #64748b; }
.error-message { color: #b91c1c; font-weight: 600; min-height: 1.1rem; }
.field input[aria-invalid="true"] { border-color: #b91c1c; }

.form-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.button {
  border: 1px solid transparent;
  border-radius: 0.5rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 700;
  min-height: 2.75rem;
  padding: 0.6rem 1rem;
}

.button-primary { background: #3730a3; color: #fff; }
.button-primary:hover { background: #312e81; }
.button-secondary { background: #fff; border-color: #94a3b8; color: #334155; }
.button-secondary:hover { background: #f8fafc; }
.button-ghost { background: transparent; color: #3730a3; }
.button-ghost:hover { background: #eef2ff; }
.button-danger { background: #fff; border-color: #fecaca; color: #b91c1c; }
.button-danger:hover { background: #fef2f2; }
.sr { height: 1px; margin: -1px; overflow: hidden; position: absolute; width: 1px; clip: rect(0, 0, 0, 0); }

@media (min-width: 640px) {
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field-wide { grid-column: span 2; }
}

@media (max-width: 420px) {
  .form-actions .button { width: 100%; }
}