.diagnostic-browser {
  overflow: hidden;
  border: 1px solid rgba(111, 168, 255, 0.3);
  border-radius: var(--radius-large);
  background: rgba(5, 13, 25, 0.88);
  box-shadow: var(--shadow-large);
}

.browser-tabs {
  display: flex;
  gap: 4px;
  padding: 10px;
  overflow-x: auto;
  border-bottom: 1px solid var(--color-line);
  background: rgba(13, 27, 48, 0.78);
}

.browser-tabs button {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.82rem;
  font-weight: 750;
  cursor: pointer;
}

.browser-tabs button:hover,
.browser-tabs button[aria-selected="true"] {
  border-color: rgba(57, 216, 255, 0.26);
  background: rgba(57, 216, 255, 0.08);
  color: var(--color-text);
}

.screen-preview,
.screen-preview figure {
  margin: 0;
}

.screen-preview img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  background: #050d18;
  object-fit: contain;
  transition: opacity 140ms ease;
}

.elara-showcase {
  display: grid;
  isolation: isolate;
  min-height: clamp(560px, 60vw, 820px);
  place-items: center;
  background:
    radial-gradient(circle at 50% 44%, rgba(57, 216, 255, 0.14), transparent 34%),
    linear-gradient(145deg, rgba(17, 35, 61, 0.9), rgba(6, 15, 28, 0.96));
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.24), 0 0 38px rgba(57, 216, 255, 0.08), inset 0 0 34px rgba(57, 216, 255, 0.035);
}

.elara-showcase::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background:
    radial-gradient(circle at 15% 18%, rgba(217, 250, 255, 0.86) 0 1px, rgba(57, 216, 255, 0.2) 1.4px, transparent 2.8px),
    radial-gradient(circle at 29% 72%, rgba(128, 158, 255, 0.74) 0 1px, transparent 2.5px),
    radial-gradient(circle at 44% 27%, rgba(57, 216, 255, 0.72) 0 1px, transparent 2.6px),
    radial-gradient(circle at 58% 82%, rgba(213, 249, 255, 0.72) 0 1px, transparent 2.5px),
    radial-gradient(circle at 73% 14%, rgba(127, 160, 255, 0.76) 0 1px, transparent 2.6px),
    radial-gradient(circle at 86% 61%, rgba(57, 216, 255, 0.76) 0 1px, rgba(57, 216, 255, 0.14) 1.5px, transparent 3px),
    radial-gradient(circle at 20% 47%, rgba(57, 216, 255, 0.5) 0 1px, transparent 2.3px),
    radial-gradient(circle at 66% 43%, rgba(220, 250, 255, 0.6) 0 1px, transparent 2.4px),
    linear-gradient(180deg, rgba(57, 216, 255, 0.025), transparent 34%, rgba(113, 148, 255, 0.035));
  content: "";
  opacity: 0.62;
}

.elara-showcase::after {
  display: none;
}

.elara-showcase img {
  z-index: 1;
  width: min(100%, 34rem);
  height: auto;
  margin-inline: auto;
  object-fit: contain;
  filter: drop-shadow(0 30px 48px rgba(0, 0, 0, 0.34)) drop-shadow(0 0 24px rgba(57, 216, 255, 0.2));
}

.screen-preview.is-changing img {
  opacity: 0.28;
}

.screen-preview figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 17px 21px;
  border-top: 1px solid var(--color-line);
  color: var(--color-text-muted);
  font-size: 0.78rem;
}

.screen-preview figcaption strong {
  color: var(--color-text);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.capability {
  min-height: 220px;
  padding: 28px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-surface-faint);
}

.capability-number {
  display: block;
  margin-bottom: 40px;
  color: var(--color-cyan);
  font-family: Consolas, monospace;
  font-size: 0.69rem;
}

.capability p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.network-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 0.7fr minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  min-height: 420px;
  padding: 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-large);
  background:
    radial-gradient(circle at center, rgba(40, 160, 255, 0.12), transparent 48%),
    rgba(8, 19, 35, 0.72);
}

.machine-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  padding: 24px 12px;
  border: 1px solid rgba(119, 168, 255, 0.25);
  border-radius: 18px;
  background: rgba(11, 26, 47, 0.86);
  text-align: center;
}

.machine-icon {
  display: grid;
  width: 55px;
  height: 55px;
  margin-bottom: 18px;
  place-items: center;
  border-radius: 16px;
  background: rgba(57, 216, 255, 0.08);
  color: var(--color-cyan);
}

.machine-icon svg {
  width: 32px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.machine-card small {
  color: var(--color-cyan);
  font-family: Consolas, monospace;
  font-size: 0.65rem;
}

.machine-card > span:last-child {
  color: var(--color-text-muted);
  font-size: 0.7rem;
}

.network-line {
  display: grid;
  gap: 8px;
  justify-items: center;
  color: var(--color-text-muted);
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  text-align: center;
  text-transform: uppercase;
}

.network-line i {
  position: relative;
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
}

.network-line i::after {
  position: absolute;
  top: -3px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 12px var(--color-cyan);
  content: "";
  animation: network-pulse 2.8s linear infinite;
}

@keyframes network-pulse {
  to { left: calc(100% - 7px); }
}

.installer-panel {
  overflow: hidden;
  border: 1px solid rgba(127, 157, 255, 0.3);
  border-radius: 24px;
  background: rgba(4, 11, 22, 0.9);
  box-shadow: var(--shadow-panel);
}

.installer-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px;
  border-bottom: 1px solid var(--color-line);
  background: rgba(15, 30, 54, 0.84);
}

.installer-titlebar strong,
.installer-titlebar small {
  display: block;
}

.installer-titlebar small {
  color: var(--color-text-muted);
}

.installer-steps {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 16px;
  list-style: none;
}

.installer-steps li {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 12px;
  align-items: center;
  min-height: 67px;
  padding: 11px 13px;
  border: 1px solid transparent;
  border-radius: 13px;
  background: rgba(126, 159, 226, 0.045);
}

.installer-steps li > span {
  color: #647895;
  font-family: Consolas, monospace;
  font-size: 0.66rem;
}

.installer-steps li strong,
.installer-steps li small {
  display: block;
}

.installer-steps li small {
  color: var(--color-text-muted);
}

.installer-steps li > i {
  color: var(--color-green);
  font-size: 0.7rem;
  font-style: normal;
}

.installer-steps .is-current {
  border-color: rgba(255, 196, 107, 0.26);
  background: rgba(255, 196, 107, 0.06);
}

.installer-steps .is-current > span,
.installer-steps .is-current > i {
  color: var(--color-amber);
}

.drive-plan {
  margin: 0 16px 16px;
  padding: 16px;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  background: rgba(16, 31, 54, 0.56);
}

.partition-bar {
  display: grid;
  grid-template-columns: 0.12fr 1fr 0.18fr;
  gap: 3px;
  height: 13px;
  margin: 10px 0;
}

.partition-bar span {
  border-radius: 3px;
  background: #35547c;
}

.partition-bar span:nth-child(2) {
  background: linear-gradient(90deg, var(--color-blue), var(--color-cyan));
}

.roadmap-list,
.timeline {
  border-top: 1px solid var(--color-line);
}

.roadmap-item,
.timeline-item {
  display: grid;
  grid-template-columns: minmax(170px, 0.34fr) 1fr;
  gap: clamp(28px, 6vw, 92px);
  padding-block: 34px;
  border-bottom: 1px solid var(--color-line);
}

.roadmap-item p,
.timeline-item p {
  max-width: 720px;
  color: var(--color-text-muted);
}

.workflow-steps {
  counter-reset: workflow;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 13px;
}

.workflow-step {
  counter-increment: workflow;
  min-height: 270px;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: rgba(10, 23, 42, 0.65);
}

.workflow-step::before {
  display: block;
  margin-bottom: 54px;
  color: var(--color-cyan);
  font-family: Consolas, monospace;
  font-size: 0.7rem;
  content: "0" counter(workflow);
}

.workflow-step p {
  color: var(--color-text-muted);
}

@media (max-width: 980px) {
  .capability-grid,
  .workflow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .capability-grid,
  .workflow-steps,
  .roadmap-item,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .network-map {
    grid-template-columns: 1fr;
    min-height: 0;
    padding: 21px;
  }

  .network-line {
    min-height: 65px;
    align-content: center;
  }

  .network-line i {
    width: 1px;
    height: 24px;
    background: linear-gradient(transparent, var(--color-cyan), transparent);
  }

  .network-line i::after {
    display: none;
  }

  .installer-steps li {
    grid-template-columns: 27px 1fr;
  }

  .installer-steps li > i {
    display: none;
  }

  .workflow-step {
    min-height: 0;
  }

  .workflow-step::before {
    margin-bottom: 28px;
  }

  .elara-showcase {
    min-height: 0;
  }

  .elara-showcase img {
    width: min(100%, 25rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .elara-showcase::after {
    display: none;
  }
}

@media (forced-colors: active) {
  .elara-showcase::before,
  .elara-showcase::after {
    display: none;
  }
}