/* Gemeinsam bewegen / Mitwirken */
.participation {
  --participation-ink: #102f58;
  --participation-gold: #b98219;
  --participation-blue: #234f7b;
  --participation-green: #7b9274;
  --participation-plum: #5c3e5e;
  --participation-border: rgba(118, 95, 59, 0.18);
  --participation-shadow: 0 12px 30px rgba(53, 44, 31, 0.09);
  width: min(1440px, 100%);
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 5rem) clamp(0.75rem, 4vw, 1rem);
  color: var(--participation-ink);
  background: #fffdf9;
  font-family: var(--font-sans, ui-sans-serif, system-ui, sans-serif);
}

.participation__header {
  max-width: 1100px;
  margin: 0 auto clamp(2rem, 4vw, 3.5rem);
  text-align: center;
}

.participation__eyebrow {
  margin: 0;
  color: var(--participation-gold);
  font-size: clamp(0.95rem, 1.6vw, 1.2rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.participation__title {
  margin: 1rem 0;
  font-family: var(--font-display, Georgia, "Times New Roman", serif);
  font-size: clamp(2.2rem, 5vw, 4.4rem);
  line-height: 1.16;
  font-weight: 400;
  color: var(--participation-ink);
}

.participation__ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: 1rem 0;
}

.participation__ornament span {
  width: clamp(5rem, 14vw, 12rem);
  height: 1px;
  background: rgba(185, 130, 25, 0.6);
}

.participation__ornament svg {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--participation-gold);
}

.participation__intro {
  margin: 0;
  font-size: clamp(1rem, 1.7vw, 1.28rem);
  line-height: 1.5;
}

.participation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.1rem;
}

.participation-card {
  --accent: var(--participation-blue);
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 540px;
  padding: 2rem 1.4rem 1.6rem;
  overflow: hidden;
  text-align: center;
  border: 1px solid var(--participation-border);
  border-radius: 0.2rem;
  background:
    radial-gradient(
      circle at 50% 100%,
      color-mix(in srgb, var(--accent) 24%, transparent),
      transparent 48%
    ),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.86));
  box-shadow: var(--participation-shadow);
}

.participation-card::after {
  content: "";
  position: absolute;
  inset: auto -10% -8% -10%;
  height: 48%;
  pointer-events: none;
  opacity: 0.26;
  background:
    radial-gradient(
      circle at 20% 20%,
      transparent 0 12%,
      color-mix(in srgb, var(--accent) 30%, transparent) 13% 18%,
      transparent 19%
    ),
    radial-gradient(
      circle at 70% 45%,
      transparent 0 10%,
      color-mix(in srgb, var(--accent) 25%, transparent) 11% 16%,
      transparent 17%
    );
  filter: blur(8px);
}

.participation-card--blue {
  --accent: var(--participation-blue);
}

.participation-card--gold {
  --accent: #d8a72c;
}

.participation-card--green {
  --accent: var(--participation-green);
}

.participation-card--plum {
  --accent: var(--participation-plum);
}

.participation-card__icon-wrap {
  position: relative;
  z-index: 1;
  width: 8.2rem;
  height: 8.2rem;
  margin: 0 auto 1.5rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
}

.participation-card__icon-wrap svg {
  width: 62%;
  height: 62%;
  color: #f3d68a;
}

.participation-card--green .participation-card__icon-wrap svg,
.participation-card--gold .participation-card__icon-wrap svg {
  color: white;
}

.participation-card h3 {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-display, Georgia, "Times New Roman", serif);
  font-size: clamp(1.9rem, 2.7vw, 2.5rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--participation-ink);
}

.participation-card__rule {
  position: relative;
  z-index: 1;
  width: 3.4rem;
  height: 1px;
  margin: 1rem auto;
  background: var(--participation-gold);
}

.participation-card p {
  position: relative;
  z-index: 1;
  margin: 0 auto;
  max-width: 25ch;
  color: #17365d;
  font-size: 1.02rem;
  line-height: 1.55;
}

.participation-card__button {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: auto;
  min-height: 3.2rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--participation-gold);
  color: #9b6500;
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.participation-card__button:hover {
  background: #fff8e8;
  color: #9b6500;
}

.participation-card__button:focus-visible {
  outline: 3px solid var(--participation-ink);
  outline-offset: 4px;
}

@media (max-width: 1100px) {
  .participation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .participation-card {
    min-height: 500px;
  }
}

@media (max-width: 680px) {
  .participation__title br,
  .participation__intro br {
    display: none;
  }

  .participation__ornament span {
    width: 4rem;
  }

  .participation-grid {
    grid-template-columns: 1fr;
  }

  .participation-card {
    min-height: 460px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .participation-card,
  .participation-card__button {
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  }

  .participation-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 36px rgba(53, 44, 31, 0.12);
  }
}