/* "Is it secure?": an always-dark band. P2P direct is the lead route; the relay
   is drawn as the fallback. Claims follow site/doc/zh/security.md. */

.band {
  background: var(--band);
  color: var(--band-ink);
}

.band .sec-head p {
  color: var(--band-muted);
}

.band .sec-head .ask {
  color: #8bbbff;
}

.routes {
  display: grid;
  gap: 16px;
}

.route {
  border-radius: 22px;
  padding: 22px 26px 26px;
  border: 1px solid var(--band-line);
  background: var(--band-2);
}

.route-p2p {
  background: linear-gradient(180deg, rgba(61, 123, 253, 0.16), rgba(61, 123, 253, 0.04));
  border-color: rgba(110, 168, 254, 0.45);
  box-shadow: 0 0 0 1px rgba(110, 168, 254, 0.08), 0 30px 60px -40px rgba(61, 123, 253, 0.6);
}

.route-relay {
  background: transparent;
  border-style: dashed;
}

.route-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--band-muted);
}

.route-p2p .route-tag {
  color: #8bbbff;
}

.route-tag .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #46d68c;
  box-shadow: 0 0 0 4px rgba(70, 214, 140, 0.18);
}

.route-line {
  display: grid;
  align-items: center;
}

.route-p2p .route-line {
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr) minmax(0, 220px);
}

.route-relay .route-line {
  grid-template-columns: minmax(0, 120px) minmax(40px, 1fr) minmax(0, 300px) minmax(40px, 1fr) minmax(0, 120px);
}

.rnode {
  display: grid;
  justify-items: center;
  gap: 6px;
  text-align: center;
}

.rnode .ic {
  width: 52px;
  height: 52px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  background: rgba(233, 237, 243, 0.07);
  border: 1px solid var(--band-line);
}

.rnode .ic svg {
  width: 24px;
  height: 24px;
}

.rnode b {
  font-size: 16px;
}

.rnode .key {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(110, 168, 254, 0.14);
  color: #8bbbff;
  font: 500 12px var(--mono);
}

.rnode .key svg {
  width: 12px;
  height: 12px;
}

.rnode.small .ic,
.rnode.relay .ic {
  width: 40px;
  height: 40px;
  border-radius: 12px;
}

.rnode.small .ic svg,
.rnode.relay .ic svg {
  width: 19px;
  height: 19px;
}

.rnode.small b {
  font-size: 14px;
  font-weight: 500;
  color: var(--band-muted);
}

.rnode.relay {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px dashed rgba(233, 237, 243, 0.22);
}

.rnode.relay .ic {
  background: transparent;
  color: var(--band-muted);
}

.rnode.relay b {
  font-size: 15px;
}

.rnode.relay span {
  font-size: 13px;
  line-height: 1.5;
  color: var(--band-muted);
}

.rwire {
  position: relative;
  height: 56px;
  display: grid;
  place-items: center;
}

.rwire::before {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  top: 50%;
  border-top: 2px dashed rgba(233, 237, 243, 0.22);
}

.rwire em {
  position: relative;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--band);
  font: 500 11.5px var(--mono);
  font-style: normal;
  color: var(--band-muted);
}

.rwire.strong::before {
  top: calc(50% - 1px);
  height: 3px;
  border: 0;
  border-radius: 3px;
  background: linear-gradient(90deg, rgba(110, 168, 254, 0.2), #6ea8fe, rgba(110, 168, 254, 0.2));
}

.rwire.strong em {
  background: #13203a;
  border: 1px solid rgba(110, 168, 254, 0.35);
  color: #cfe0ff;
  font-size: 12.5px;
}

.rwire.strong i {
  position: absolute;
  top: calc(50% - 5px);
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: #9cc4ff;
  box-shadow: 0 0 14px #6ea8fe;
  animation: packet 2.4s linear infinite;
}

.rwire.strong i + i {
  animation-direction: reverse;
  animation-delay: -1.2s;
}

@keyframes packet {
  from {
    left: 10px;
    opacity: 0;
  }

  12% {
    opacity: 1;
  }

  88% {
    opacity: 1;
  }

  to {
    left: calc(100% - 20px);
    opacity: 0;
  }
}

.route-fine {
  margin-top: 16px;
  max-width: 62em;
  font-size: 13px;
  color: var(--band-muted);
}

.guar {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border-radius: 20px;
  overflow: hidden;
  background: var(--band-line);
}

.guar div {
  display: grid;
  gap: 4px;
  padding: 22px 22px 24px;
  background: var(--band);
}

.guar b {
  font-size: 16px;
}

.guar span {
  font-size: 14px;
  color: var(--band-muted);
}

@media (max-width: 1040px) {
  .guar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .route {
    padding: 18px;
  }

  .route-p2p .route-line,
  .route-relay .route-line {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
  }

  .rwire {
    width: 100%;
    height: 64px;
  }

  .rwire::before {
    left: 50%;
    right: auto;
    top: 6px;
    bottom: 6px;
    border-top: 0;
    border-left: 2px dashed rgba(233, 237, 243, 0.22);
  }

  .rwire.strong::before {
    left: calc(50% - 1px);
    width: 3px;
    height: auto;
    background: linear-gradient(180deg, rgba(110, 168, 254, 0.2), #6ea8fe, rgba(110, 168, 254, 0.2));
  }

  .rwire.strong i {
    display: none;
  }

  .rnode.relay {
    width: 100%;
  }

  .guar {
    grid-template-columns: minmax(0, 1fr);
  }
}