/* ============================================
   How To Join Section - Tek Guide
   ============================================ */
.how-to {
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(0, 229, 255, 0.08), transparent 70%),
    radial-gradient(ellipse 45% 40% at 15% 55%, rgba(0, 71, 171, 0.08), transparent 65%),
    var(--color-surface-container-lowest);
  border-top: 1px solid var(--color-outline-variant);
  border-bottom: 1px solid var(--color-outline-variant);
  overflow: hidden;
}

.how-to > .container {
  position: relative;
  z-index: 2;
}

.how-to__header {
  text-align: center;
  margin-bottom: 48px;
}

.how-to__header .section-subtitle {
  margin: 0 auto;
}

.how-to__divider {
  width: 72px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary-container), transparent);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
  margin: 20px auto 0;
}

.how-to__frame {
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 10px;
  position: relative;
  background:
    linear-gradient(180deg, rgba(30, 32, 35, 0.82), rgba(12, 14, 17, 0.92)),
    rgba(30, 32, 35, 0.72);
  border: 1px solid var(--color-outline-variant);
  box-shadow:
    0 0 1px rgba(195, 245, 255, 0.3),
    0 0 28px rgba(0, 229, 255, 0.08),
    0 20px 64px rgba(0, 0, 0, 0.38);
  overflow: hidden;
}

.how-to__image {
  width: 100%;
  height: auto;
  aspect-ratio: 1448 / 1086;
  object-fit: contain;
  border: 1px solid rgba(0, 229, 255, 0.12);
  background: var(--color-surface-container-lowest);
}

@media (max-width: 768px) {
  .how-to__header {
    margin-bottom: 32px;
  }

  .how-to__frame {
    padding: 6px;
  }
}