.am-persona-nav {
  padding-top: var(--padding-top, clamp(60px, 8vw, 100px));
  padding-bottom: var(--padding-bottom, clamp(60px, 8vw, 100px));
  padding-left: 20px;
  padding-right: 20px;
  position: relative;
  overflow: hidden;
}

.am-persona-nav__container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.am-persona-nav__title {
  text-align: center;
  margin-bottom: 50px;
  font-size: clamp(1.75rem, 4vw, 2.625rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--am-text-primary); /* Accessible default fallback */
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) and ((-webkit-text-fill-color: transparent) or (text-fill-color: transparent)) {
  .am-persona-nav__title {
    background: linear-gradient(135deg, var(--am-text-primary) 0%, var(--am-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

.am-persona-circle-wrapper {
  position: relative;
  width: 100%;
  max-width: 1000px;
  margin: 60px auto 0;
  aspect-ratio: 1 / 1;
  container-type: inline-size;
}

/* Connecting Dashed Circle */
.am-persona-circle-lines {
  position: absolute;
  top: 15%;
  left: 15%;
  right: 15%;
  bottom: 15%;
  border: 3px dashed var(--am-text-secondary);
  border-radius: 50%;
  z-index: 1;
  opacity: 0.4;
}

/* Center Logo styling */
.am-persona-center-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 160px;
  height: 160px;
  background: #ffffff;
  border: 1px solid var(--am-border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}
body.dark-mode .am-persona-center-logo {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.am-persona-center-logo__image {
  width: 60px;
  height: 60px;
  color: var(--am-text-primary);
  z-index: 10;
  object-fit: contain;
}

.am-persona-center-pulse {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: 50%;
  border: 2px solid var(--am-text-primary);
  @media (prefers-reduced-motion: no-preference) {
    animation: am-heartbeat-ring 1.8s ease-in-out infinite;
  }
  z-index: -1;
}

@keyframes am-heartbeat-ring {
  0% { transform: scale(1); opacity: 0.3; }
  14% { transform: scale(1.12); opacity: 0.6; }
  28% { transform: scale(1); opacity: 0.3; }
  42% { transform: scale(1.12); opacity: 0.6; }
  70% { transform: scale(1); opacity: 0.3; }
  100% { transform: scale(1); opacity: 0.3; }
}

.am-persona-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 320px;
  background: var(--am-bg-matte);
  padding: 40px 30px;
  border-radius: 20px;
  text-align: center;
  border: 1px solid var(--am-border-color);
  box-shadow: var(--card-shadow, 0 8px 32px rgba(0, 0, 0, 0.05));
  transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), border-color 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), box-shadow 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 5;
  
  /* Math: Offset by -135deg to place 4 cards at 45deg, 135deg, 225deg, 315deg */
  --angle: calc((360deg / var(--total)) * var(--index) - 135deg);
  --radius: min(38cqw, 380px);
  transform: translate(-50%, -50%) rotate(var(--angle)) translate(var(--radius)) rotate(calc(var(--angle) * -1));
}

body.dark-mode .am-persona-card {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.am-persona-card:hover,
.am-persona-card:focus-within {
  transform: translate(-50%, calc(-50% - 8px)) rotate(var(--angle)) translate(var(--radius)) rotate(calc(var(--angle) * -1));
  border-color: var(--am-primary);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.am-persona-card h3 {
  margin-bottom: 20px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--am-text-primary);
}

.am-persona-card p {
  margin-bottom: 30px;
  color: var(--am-text-secondary);
  line-height: 1.6;
  font-size: 1rem;
  flex-grow: 1;
}

.am-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 14px 28px;
  background: var(--am-primary);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-decoration: none;
}

.am-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  color: #fff;
}

.am-btn:focus,
.am-btn:focus-visible {
  outline: 3px solid var(--am-text-primary);
  outline-offset: 2px;
}

/* Mobile Fallback */
@media (max-width: 900px) {
  .am-persona-circle-wrapper {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 30px;
    aspect-ratio: auto;
  }
  .am-persona-card {
    position: static;
    width: 100%;
    max-width: none;
    transform: none !important;
  }
  .am-persona-center-logo,
  .am-persona-circle-lines {
    display: none; /* Hide circular decorations on mobile stack */
  }
}

@media (prefers-reduced-motion: reduce) {
  .am-persona-card,
  .am-persona-card:hover,
  .am-persona-card:focus-within,
  .am-btn,
  .am-btn:hover,
  .am-persona-center-pulse {
    transition: none !important;
    transform: none !important;
    box-shadow: none !important;
    animation: none !important;
  }
}