/* Diagrams remain readable as ordered text when styles are unavailable. */
.security-figure {
  margin: 32px 0;
  padding: 24px;
  border: 1px solid #ffffff1c;
  border-radius: 16px;
  background: #17181c;
}
.docs-main .security-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  padding: 0;
  margin: 0;
  list-style: none;
}
.docs-main .security-flow-pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.docs-main .security-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
  margin: 0;
  padding: 20px 16px;
  border: 1px solid #ffffff30;
  border-radius: 12px;
  background: #1d1f23;
  line-height: 1.5;
}
.security-icon {
  width: 32px;
  height: 32px;
  color: var(--coral);
}
.security-location {
  font-size: 12px;
  color: #a9aeaa;
}
.security-card strong {
  color: var(--ground);
  font-size: 18px;
  line-height: 1.35;
}
.docs-main .security-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}
.security-badge {
  padding: 6px 10px;
  border-radius: 8px;
  background: #ff8f7326;
  color: #ffc8ae;
  font-size: 12px;
}
.security-flow-arrow {
  position: absolute;
  top: 50%;
  right: -27px;
  transform: translateY(-50%);
  color: var(--coral);
  font-size: 24px;
  line-height: 1;
}
.security-card:last-child .security-flow-arrow {
  display: none;
}
.security-figure figcaption {
  margin-top: 20px;
  color: #a9aeaa;
  font-size: 13px;
  line-height: 1.7;
}
.security-grant-source {
  display: grid;
  justify-items: center;
  gap: 12px;
  padding: 20px;
  border: 1px solid #ffffff30;
  border-radius: 12px;
  background: #1d1f23;
  text-align: center;
}
.security-grant-source strong {
  color: var(--ground);
  font-size: 18px;
}
.security-grant-source span {
  color: #a9aeaa;
  font-size: 14px;
  line-height: 1.6;
}
.security-grant-connectors {
  display: block;
  width: 100%;
  height: 44px;
  color: var(--coral);
}
.security-account-boundary,
.security-app-boundary {
  padding: 24px;
  border: 1px solid #ffffff30;
  border-radius: 12px;
  background: #1d1f23;
}
.security-account-boundary > strong,
.security-app-boundary > strong {
  display: block;
  margin-top: 10px;
  color: var(--ground);
  font-size: 20px;
  line-height: 1.4;
}
.docs-main .security-account-boundary > p,
.docs-main .security-app-boundary p {
  font-size: 14px;
  line-height: 1.7;
}
.docs-main .security-account-areas {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0;
  margin: 20px 0 0;
  list-style: none;
}
.docs-main .security-account-areas li {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 16px;
  border: 1px solid #ffffff30;
  border-radius: 10px;
  background: #17181c;
}
.security-account-areas strong {
  color: var(--ground);
  font-size: 14px;
}
.security-account-areas span {
  font-size: 12px;
  line-height: 1.6;
}
.docs-main .security-account-areas .security-area-approved {
  border-color: var(--coral);
}
.security-permission-gate {
  padding: 16px;
  text-align: center;
}
.security-permission-gate > span {
  color: var(--coral);
  font-size: 30px;
}
.docs-main .security-permission-gate p {
  margin: 4px 0 0;
  font-size: 13px;
}
.security-app-boundary {
  border-color: var(--coral);
}
@media (max-width: 900px) {
  .security-figure {
    padding: 20px;
  }
  .docs-main .security-flow,
  .docs-main .security-flow-pair {
    grid-template-columns: minmax(0, 1fr);
  }
  .security-account-boundary,
  .security-app-boundary {
    padding: 18px;
  }
  .docs-main .security-account-areas {
    grid-template-columns: minmax(0, 1fr);
  }
  .security-grant-connectors {
    display: none;
  }
  .docs-main .security-grant-branches {
    margin-top: 24px;
  }
  .security-flow-arrow {
    top: auto;
    bottom: -29px;
    right: 50%;
    transform: translateX(50%) rotate(90deg);
  }
}

/* Mail delivery: one row per path, each stop marked with whether the
   message is encrypted or readable there. The state is written out, not
   only drawn, so the figure reads the same as text. */
.docs-main .mail-paths {
  display: grid;
  gap: 28px;
}
.docs-main .mail-path-name {
  margin: 0 0 12px;
  color: var(--ground);
  font-size: 15px;
  font-weight: 600;
}
.docs-main .mail-path ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.docs-main .mail-path li {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  margin: 0;
  padding: 16px;
  border: 1px solid #ffffff30;
  border-radius: 12px;
  background: #1d1f23;
}
.mail-path li + li::before {
  content: "\2192";
  content: "\2192" / "";
  position: absolute;
  top: 50%;
  left: -24px;
  transform: translateY(-50%);
  color: var(--coral);
  font-size: 20px;
  line-height: 1;
}
.mail-path strong {
  color: var(--ground);
  font-size: 15px;
  line-height: 1.35;
}
.docs-main .mail-path li > span:not(.mail-state) {
  flex: 1;
  color: #cdd0cc;
  font-size: 13px;
  line-height: 1.55;
}
.mail-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px 4px 7px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
}
.mail-state svg {
  flex: none;
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.mail-sealed {
  background: #a8bab524;
  color: #d3e3dc;
}
.mail-open {
  box-shadow: inset 0 0 0 1px #ffffff38;
  color: #e3ddd2;
}
@media (max-width: 900px) {
  .docs-main .mail-path ol {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }
  .docs-main .mail-path li {
    gap: 6px;
    padding: 12px 14px;
  }
  .mail-path li + li::before {
    top: -20px;
    left: 22px;
    transform: rotate(90deg);
  }
}