.methodical {
  background: var(--paper-deep);
}

.feature-collage {
  overflow: hidden;
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.method-card {
  border: 1px solid #d0ccc2;
  background: rgba(248, 246, 241, 0.72);
  min-height: 210px;
  padding: 25px 27px;
  transition: border-color 0.2s, background 0.2s;
}

.method-card[open] {
  background: #fff;
  border-color: var(--accent);
}

.method-card summary {
  cursor: pointer;
  list-style: none;
}

.method-card summary::-webkit-details-marker {
  display: none;
}

.method-number {
  color: var(--accent);
  display: block;
  font-size: 9px;
  letter-spacing: 0.12em;
  margin-bottom: 25px;
  text-transform: uppercase;
}

.method-title-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 20px;
}

.method-title-row h3 {
  font-size: 26px;
  letter-spacing: -0.025em;
  line-height: 1.12;
  margin: 0;
}

.method-plus {
  color: var(--accent);
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.2s;
}

.method-card[open] .method-plus {
  transform: rotate(45deg);
}

.method-intro {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
  margin: 16px 35px 0 0;
}

.method-content {
  border-top: 1px solid var(--line);
  margin-top: 20px;
  padding-top: 17px;
}

.method-content ul {
  color: var(--muted);
  display: grid;
  gap: 9px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.method-content li {
  font-size: 11px;
  line-height: 1.55;
  padding-left: 17px;
  position: relative;
}

.method-content li::before {
  color: var(--accent);
  content: "—";
  left: 0;
  position: absolute;
}

@media (width <= 650px) {
  .site-header nav a {
    display: none;
  }

  .site-header nav a:nth-child(1),
  .site-header nav a:nth-child(4) {
    display: inline;
  }

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

  .method-card {
    min-height: 0;
    padding: 22px 20px;
  }

  .method-title-row h3 {
    font-size: 23px;
  }
}