.iipae {
  --iipae-bg: linear-gradient(180deg, #0f172a 0%, #111827 44%, #0b1120 100%);
  --iipae-border: rgba(148, 163, 184, 0.22);
  --iipae-text: #e5eefb;
  --iipae-muted: #94a3b8;
  --iipae-accent: #60a5fa;
  --iipae-accent-2: #22c55e;
  --iipae-warn: #f59e0b;
  --iipae-chip: rgba(96, 165, 250, 0.12);
  --iipae-chip-active: rgba(96, 165, 250, 0.24);
  --iipae-panel: rgba(15, 23, 42, 0.72);
  --iipae-shadow: 0 24px 48px rgba(2, 6, 23, 0.28);
  color: var(--iipae-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 1.5rem 0;
}

.iipae * {
  box-sizing: border-box;
}

.iipae__shell {
  background: var(--iipae-bg);
  border: 1px solid var(--iipae-border);
  border-radius: 22px;
  box-shadow: var(--iipae-shadow);
  overflow: hidden;
  position: relative;
}

.iipae__shell::before {
  background:
    radial-gradient(circle at top right, rgba(96, 165, 250, 0.18), transparent 28%),
    radial-gradient(circle at bottom left, rgba(34, 197, 94, 0.12), transparent 30%);
  content: "";
  inset: 0;
  pointer-events: none;
  position: absolute;
}

.iipae__topbar,
.iipae__toolbar,
.iipae__summary-panel,
.iipae__details,
.iipae__footer-note,
.iipae__screen,
.iipae__input-wrap {
  position: relative;
  z-index: 1;
}

.iipae__topbar {
  align-items: center;
  background: rgba(15, 23, 42, 0.68);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.9rem 1rem;
}

.iipae__lights {
  align-items: center;
  display: inline-flex;
  gap: 0.4rem;
  min-width: 4rem;
}

.iipae__lights span {
  background: rgba(255, 255, 255, 0.42);
  border-radius: 999px;
  display: block;
  height: 0.72rem;
  width: 0.72rem;
}

.iipae__lights span:nth-child(1) {
  background: #fb7185;
}

.iipae__lights span:nth-child(2) {
  background: #fbbf24;
}

.iipae__lights span:nth-child(3) {
  background: #34d399;
}

.iipae__window-title {
  color: #dce7f6;
  flex: 1;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.iipae__copy-button,
.iipae__randomize-button,
.iipae__tab,
.iipae__segment,
.iipae__prefix-chip {
  appearance: none;
  background: transparent;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 999px;
  color: var(--iipae-text);
  cursor: pointer;
  font: inherit;
  line-height: 1;
  margin: 0;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.iipae__copy-button,
.iipae__randomize-button {
  background: rgba(255, 255, 255, 0.04);
  padding: 0.72rem 1rem;
  white-space: nowrap;
}

.iipae__copy-button:hover,
.iipae__randomize-button:hover,
.iipae__tab:hover,
.iipae__segment:hover,
.iipae__prefix-chip:hover,
.iipae__copy-button:focus-visible,
.iipae__randomize-button:focus-visible,
.iipae__tab:focus-visible,
.iipae__segment:focus-visible,
.iipae__prefix-chip:focus-visible {
  background: rgba(96, 165, 250, 0.12);
  border-color: rgba(96, 165, 250, 0.72);
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.16);
  outline: none;
}

.iipae__copy-button.is-copied {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.52);
}

.iipae__toolbar {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  padding: 1rem 1rem 0;
}

.iipae__mode-switch {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 999px;
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.3rem;
}

.iipae__tab {
  align-items: center;
  background: transparent;
  border-color: transparent;
  display: inline-flex;
  padding: 0.72rem 1rem;
}

.iipae__tab[aria-selected="true"] {
  background: linear-gradient(180deg, rgba(96, 165, 250, 0.28), rgba(96, 165, 250, 0.16));
  border-color: rgba(96, 165, 250, 0.58);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.iipae__input-wrap {
  display: grid;
  gap: 0.5rem;
  padding: 1rem 1rem 0;
}

.iipae__input-label {
  color: #d6e3f3;
  font-size: 0.94rem;
  font-weight: 600;
}

.iipae__input {
  background: rgba(2, 6, 23, 0.42);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 14px;
  color: var(--iipae-text);
  font: inherit;
  min-height: 3.2rem;
  padding: 0.95rem 1rem;
  width: 100%;
}

.iipae__input::placeholder {
  color: #7a8ba2;
}

.iipae__input:focus-visible {
  border-color: rgba(96, 165, 250, 0.76);
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.14);
  outline: none;
}

.iipae__screen {
  background: rgba(2, 6, 23, 0.46);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 18px;
  margin: 1rem;
  overflow: hidden;
  padding: 1rem;
}

.iipae__line {
  align-items: center;
  display: flex;
  gap: 0.65rem;
  line-height: 1.5;
}

.iipae__line + .iipae__line {
  margin-top: 0.55rem;
}

.iipae__line--muted {
  color: var(--iipae-muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.92rem;
}

.iipae__line--headline {
  flex-wrap: wrap;
}

.iipae__prompt {
  color: #86efac;
}

.iipae__family-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 999px;
  color: #d7e6f8;
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.36rem 0.64rem;
  text-transform: uppercase;
}

.iipae__example-label {
  color: #cbd5e1;
  font-size: 0.92rem;
}

.iipae__address-rows {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
}

.iipae__address-row {
  display: grid;
  gap: 0.45rem;
}

.iipae__row-label {
  color: #9fb3c8;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.iipae__address-display {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.18rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: clamp(1rem, 2.2vw, 1.28rem);
}

.iipae__segment {
  background: var(--iipae-chip);
  border-radius: 14px;
  color: #eff6ff;
  font-family: inherit;
  line-height: 1;
  min-width: 3rem;
  padding: 0.68rem 0.75rem;
}

.iipae__segment[data-mode="ipv6"] {
  min-width: 4.1rem;
}

.iipae__segment.is-active {
  background: var(--iipae-chip-active);
  border-color: rgba(96, 165, 250, 0.78);
  transform: translateY(-1px);
}

.iipae__separator {
  color: #88a3bd;
  padding: 0 0.15rem;
}

.iipae__static-address {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 14px;
  color: #eff6ff;
  display: inline-flex;
  padding: 0.68rem 0.75rem;
}

.iipae__prefix-chip {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.24);
  border-radius: 12px;
  color: #dcfce7;
  font-family: inherit;
  font-size: 0.92em;
  padding: 0.52rem 0.68rem;
}

.iipae__prefix-chip.is-active {
  background: rgba(34, 197, 94, 0.18);
  border-color: rgba(34, 197, 94, 0.56);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.16);
}

.iipae__summary-panel {
  display: grid;
  gap: 0.95rem;
  grid-template-columns: 1.15fr 0.85fr;
  margin: 0 1rem;
}

.iipae__summary,
.iipae__meta,
.iipae__details {
  background: var(--iipae-panel);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 18px;
}

.iipae__summary,
.iipae__meta {
  padding: 1rem;
}

.iipae__summary-copy {
  color: #dbe7f6;
  margin: 0;
}

.iipae__summary-hint {
  color: #98acc3;
  font-size: 0.92rem;
  margin-top: 0.6rem;
}

.iipae__meta-list {
  display: grid;
  gap: 0.8rem;
  margin: 0;
}

.iipae__meta-item {
  display: grid;
  gap: 0.24rem;
}

.iipae__meta-label {
  color: #88a3bd;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.iipae__meta-value {
  color: #eef6ff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  line-height: 1.5;
}

.iipae__details {
  display: grid;
  gap: 0.8rem;
  margin: 1rem;
  padding: 1rem;
}

.iipae__detail-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(148, 163, 184, 0.12);
  border-radius: 16px;
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
}

.iipae__detail-head {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: space-between;
}

.iipae__detail-title {
  color: #eef6ff;
  font-size: 1rem;
  font-weight: 700;
}

.iipae__detail-chip {
  background: rgba(251, 191, 36, 0.12);
  border: 1px solid rgba(251, 191, 36, 0.24);
  border-radius: 999px;
  color: #fcd34d;
  display: inline-flex;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 0.82rem;
  padding: 0.35rem 0.6rem;
}

.iipae__detail-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.iipae__detail-item {
  background: rgba(2, 6, 23, 0.35);
  border: 1px solid rgba(148, 163, 184, 0.1);
  border-radius: 14px;
  min-width: 0;
  padding: 0.75rem;
}

.iipae__detail-item-label {
  color: #88a3bd;
  display: block;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 0.38rem;
  text-transform: uppercase;
}

.iipae__detail-item-value {
  color: #eef6ff;
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.iipae__footer-note {
  color: #90a8bf;
  font-size: 0.92rem;
  padding: 0 1rem 1rem;
}

.iipae__error {
  background: rgba(127, 29, 29, 0.32);
  border: 1px solid rgba(248, 113, 113, 0.28);
  border-radius: 16px;
  color: #fecaca;
  margin: 0.25rem 1rem 1rem;
  padding: 0.9rem 1rem;
}

@media (max-width: 900px) {
  .iipae__summary-panel {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .iipae__topbar,
  .iipae__toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .iipae__mode-switch {
    width: 100%;
  }

  .iipae__tab {
    flex: 1 1 0;
    justify-content: center;
  }

  .iipae__copy-button,
  .iipae__randomize-button {
    width: 100%;
  }

  .iipae__address-display {
    gap: 0.14rem;
  }

  .iipae__segment {
    min-width: 2.3rem;
    padding: 0.62rem 0.58rem;
  }

  .iipae__segment[data-mode="ipv6"] {
    min-width: 3.2rem;
  }
}