/* Page styles for getting-started.html */
.alpha-hero {
  position: relative;
  padding: 150px var(--pad-x) 78px;
  text-align: center;
  overflow: hidden;
}
.alpha-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse at 50% 0%,
      rgba(124, 58, 237, 0.26),
      transparent 58%
    ),
    radial-gradient(
      ellipse at 18% 42%,
      rgba(34, 211, 238, 0.08),
      transparent 42%
    );
  pointer-events: none;
}
.alpha-hero > * {
  position: relative;
  z-index: 1;
}
.alpha-hero .badge {
  display: inline-flex;
  margin-bottom: 20px;
}
.alpha-kicker {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 10px;
}
.alpha-h1 {
  font-family: var(--font-head);
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.06;
  margin: 0 auto 20px;
  max-width: 880px;
}
.alpha-sub {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.75;
}
.alpha-body {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px var(--pad-x) 110px;
}
.alpha-section {
  margin-bottom: 84px;
}
.alpha-notice {
  position: relative;
  overflow: hidden;
  margin-bottom: 52px;
  padding: 26px 30px;
  border-radius: var(--r-md);
  border: 1px solid rgba(168, 85, 247, 0.24);
  background:
    radial-gradient(
      circle at 88% 18%,
      rgba(34, 211, 238, 0.1),
      transparent 32%
    ),
    linear-gradient(
      135deg,
      rgba(124, 58, 237, 0.12),
      rgba(255, 255, 255, 0.025)
    );
}
.alpha-notice::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(var(--accent-light), #22d3ee);
  box-shadow: 0 0 18px rgba(168, 85, 247, 0.55);
}
.alpha-notice-label {
  color: var(--accent-light);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.alpha-notice p {
  max-width: 760px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
}
#installation {
  scroll-margin-top: 110px;
}
.alpha-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}
.alpha-title {
  font-family: var(--font-head);
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.1;
}
.alpha-title span {
  color: var(--accent-light);
}
.alpha-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.alpha-card {
  position: relative;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 26px;
  overflow: hidden;
  transition:
    border-color 0.25s,
    transform 0.25s,
    background 0.25s;
}
.alpha-card:hover {
  border-color: var(--border-h);
  background: rgba(124, 58, 237, 0.055);
  transform: translateY(-2px);
}
.alpha-card::after {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(168, 85, 247, 0.6),
    transparent
  );
  opacity: 0.5;
}
.alpha-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(124, 58, 237, 0.14);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent-light);
}
.alpha-icon svg {
  width: 22px;
  height: 22px;
}
.alpha-icon--brand {
  background: rgba(255, 255, 255, 0.04);
}
.alpha-icon--brand img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}
.alpha-card h3 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.alpha-card strong {
  display: block;
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.alpha-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
}
.alpha-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.alpha-step {
  padding: 28px;
  background: linear-gradient(
    180deg,
    rgba(124, 58, 237, 0.09),
    rgba(255, 255, 255, 0.022)
  );
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.alpha-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(168, 85, 247, 0.16);
  border: 1px solid var(--border-h);
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-light);
  margin-bottom: 18px;
}
.alpha-step h3 {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.alpha-step p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 18px;
}
.alpha-channel {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: var(--r-sm);
  background: rgba(7, 7, 13, 0.65);
  border: 1px solid var(--border);
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.alpha-review-note {
  margin-top: 18px;
  margin-bottom: 0;
}
.alpha-note-section {
  margin-top: -44px;
}
.alpha-note-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 26px 30px;
  background: linear-gradient(
    135deg,
    rgba(124, 58, 237, 0.12),
    rgba(255, 255, 255, 0.025)
  );
  border: 1px solid var(--border);
  border-radius: var(--r-md);
}
.alpha-note-card p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  margin: 0;
}
.alpha-review-stat {
  min-width: 176px;
  padding: 18px 20px;
  border-radius: var(--r-sm);
  background: rgba(7, 7, 13, 0.55);
  border: 1px solid var(--border-h);
  text-align: center;
}
.alpha-review-value {
  font-family: var(--font-head);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-light);
}
.alpha-review-label {
  margin-top: 8px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.alpha-bridge-section {
  position: relative;
  margin-top: -54px;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}
.alpha-bridge-head {
  width: min(680px, 100%);
  margin: 0 auto 34px;
  text-align: center;
}
.alpha-bridge-head h2 {
  font-family: var(--font-head);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.alpha-bridge-head p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
  margin: 0;
}
.alpha-bridge-section::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(1120px, 96vw);
  height: min(920px, 92vh);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  z-index: -2;
  background:
    radial-gradient(
      ellipse at 50% 36%,
      rgba(124, 58, 237, 0.22),
      transparent 38%
    ),
    radial-gradient(
      ellipse at 48% 58%,
      rgba(34, 211, 238, 0.1),
      transparent 34%
    ),
    linear-gradient(
      90deg,
      transparent 0%,
      rgba(124, 58, 237, 0.055) 45%,
      rgba(34, 211, 238, 0.045) 52%,
      transparent 100%
    );
  filter: blur(18px);
  mask-image: radial-gradient(
    ellipse at center,
    #000 0%,
    #000 48%,
    transparent 78%
  );
}
.alpha-bridge-section::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: -1;
  width: min(760px, 86vw);
  height: min(820px, 86vh);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.09), transparent),
    repeating-linear-gradient(
      180deg,
      rgba(168, 85, 247, 0.1) 0 1px,
      transparent 1px 42px
    );
  mask-image: radial-gradient(
    ellipse at center,
    #000 0%,
    #000 52%,
    transparent 80%
  );
  opacity: 0.5;
}
.alpha-bridge {
  position: relative;
  display: grid;
  gap: 18px;
  width: min(680px, 100%);
  margin: 0 auto;
  padding: 28px 0;
  --bridge-progress: 0%;
}
.alpha-bridge::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 46px;
  bottom: 46px;
  width: 1px;
  transform: translateX(-50%);
  background: rgba(124, 58, 237, 0.22);
}
.alpha-bridge::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 46px;
  width: 1px;
  height: var(--bridge-progress);
  max-height: calc(100% - 92px);
  transform: translateX(-50%);
  background: linear-gradient(var(--accent-light), #22d3ee);
  box-shadow:
    0 0 14px rgba(168, 85, 247, 0.7),
    0 0 28px rgba(34, 211, 238, 0.24);
}
.alpha-bridge-step {
  position: relative;
  z-index: 1;
  min-height: 72px;
  display: grid;
  grid-template-columns: 1fr 52px 1fr;
  align-items: center;
  gap: 18px;
  padding: 0;
  border-radius: var(--r-sm);
  background: transparent;
  border: 0;
  opacity: 0.34;
  transform: translateY(24px) scale(0.96);
  filter: blur(2px);
  transition:
    opacity 0.45s var(--ease),
    transform 0.45s var(--ease),
    filter 0.45s var(--ease);
}
.alpha-bridge-step span {
  position: relative;
  grid-column: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin: 0 auto;
  border-radius: 12px;
  background: rgba(7, 7, 13, 0.86);
  border: 1px solid rgba(168, 85, 247, 0.38);
  color: var(--accent-light);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transition:
    background 0.25s var(--ease),
    color 0.25s var(--ease),
    border-color 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}
.alpha-bridge-step span::after {
  content: "✓";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0;
  color: #fff;
  transition: font-size 0.2s var(--ease);
}
.alpha-bridge-step strong {
  grid-column: 3;
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  transform: translateX(-14px);
  transition:
    color 0.35s var(--ease),
    transform 0.45s var(--ease),
    text-shadow 0.35s var(--ease);
}
.alpha-bridge-step:nth-child(even) strong {
  grid-column: 1;
  grid-row: 1;
  text-align: right;
  transform: translateX(14px);
}
.alpha-bridge-step.is-checked {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0);
}
.alpha-bridge-step.is-checked span {
  color: transparent;
  background: linear-gradient(135deg, var(--accent), #22d3ee);
  border-color: rgba(34, 211, 238, 0.6);
  box-shadow:
    0 0 18px rgba(168, 85, 247, 0.75),
    0 0 36px rgba(34, 211, 238, 0.28);
}
.alpha-bridge-step.is-checked span::after {
  font-size: 14px;
}
.alpha-bridge-step.is-checked strong {
  color: #fff;
  text-shadow: 0 0 18px rgba(168, 85, 247, 0.42);
  transform: translateX(0);
}
.alpha-bridge-step.is-active span {
  box-shadow:
    0 0 0 6px rgba(168, 85, 247, 0.08),
    0 0 24px rgba(168, 85, 247, 0.55);
}
.alpha-software {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.alpha-software .alpha-card {
  display: flex;
  flex-direction: column;
}
.alpha-software .alpha-card p:last-of-type {
  margin-bottom: 22px;
}
.alpha-software .btn {
  margin-top: auto;
  align-self: flex-start;
}
.alpha-guide-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition:
    color 0.2s var(--ease),
    transform 0.2s var(--ease);
}
.alpha-guide-link:hover {
  color: var(--accent-light);
  transform: translateX(3px);
}
.alpha-install-panel {
  display: grid;
  grid-template-columns: 1fr minmax(220px, 0.35fr);
  gap: 24px;
  align-items: stretch;
  margin-top: 22px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: linear-gradient(
    135deg,
    rgba(124, 58, 237, 0.09),
    rgba(255, 255, 255, 0.02)
  );
}
.alpha-install-copy h3 {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.alpha-install-copy p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 22px;
  max-width: 650px;
}
.alpha-install-status {
  padding: 20px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(168, 85, 247, 0.22);
  background: rgba(7, 7, 13, 0.48);
}
.alpha-install-status-title {
  color: var(--accent-light);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.alpha-install-status ul {
  display: grid;
  gap: 9px;
}
.alpha-install-status li {
  position: relative;
  color: var(--text-muted);
  font-size: 13px;
  padding-left: 22px;
}
.alpha-install-status li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-light);
  font-weight: 700;
}
.alpha-timeline {
  display: grid;
  grid-template-columns: repeat(8, minmax(92px, 1fr));
  gap: 10px;
  margin-bottom: 34px;
}
.alpha-time-item {
  position: relative;
  min-height: 74px;
  padding: 14px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: rgba(124, 58, 237, 0.055);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1.35;
}
.alpha-time-item::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, #a855f7, #22d3ee);
  box-shadow: 0 0 14px rgba(168, 85, 247, 0.7);
  transform: translateX(-50%) rotate(45deg);
}
.alpha-ready {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
  align-items: stretch;
}
.alpha-ready-copy {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.08), transparent 52%),
    rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 34px;
}
.alpha-ready-copy::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(168, 85, 247, 0.18),
    rgba(34, 211, 238, 0.08) 42%,
    transparent 70%
  );
  pointer-events: none;
}
.alpha-ready-copy p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 600px;
}
.alpha-check-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}
.alpha-check-kicker,
.alpha-check-group-label {
  display: block;
  color: var(--accent-light);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.alpha-check-head h3 {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 4px;
}
.alpha-check-count {
  position: relative;
  min-width: 58px;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  background: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.28);
  color: var(--accent-light);
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
}
.alpha-check-count small {
  display: block;
  margin-top: 5px;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.alpha-check-progress {
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  margin-bottom: 28px;
}
.alpha-check-progress span {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #22d3ee);
  box-shadow: 0 0 16px rgba(168, 85, 247, 0.45);
}
.alpha-check-groups {
  display: grid;
  gap: 24px;
}
.alpha-check-group-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.alpha-check-group-label::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--accent), #22d3ee);
  box-shadow: 0 0 10px rgba(168, 85, 247, 0.55);
  transform: rotate(45deg);
}
.alpha-checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.alpha-check {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  background: rgba(7, 7, 13, 0.32);
  border: 1px solid rgba(124, 58, 237, 0.16);
  color: var(--text-muted);
  font-size: 13px;
}
.alpha-check::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0.04),
    transparent 38%
  );
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}
.alpha-check:hover::after {
  opacity: 1;
}
.alpha-check span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), #22d3ee);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 0 12px rgba(168, 85, 247, 0.36);
}
.alpha-cta {
  background: linear-gradient(
    135deg,
    rgba(124, 58, 237, 0.2),
    rgba(34, 211, 238, 0.06)
  );
  border: 1px solid var(--border-h);
  border-radius: var(--r-md);
  padding: 34px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.alpha-cta h3 {
  font-family: var(--font-head);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.1;
  margin-bottom: 14px;
}
.alpha-cta p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 26px;
}
.alpha-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 980px) {
  .alpha-grid,
  .alpha-steps,
  .alpha-software {
    grid-template-columns: 1fr;
  }
  .alpha-note-card {
    grid-template-columns: 1fr;
  }
  .alpha-review-stat {
    width: 100%;
  }
  .alpha-install-panel {
    grid-template-columns: 1fr;
  }
  .alpha-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .alpha-ready {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 620px) {
  .alpha-hero {
    padding-top: 128px;
  }
  .alpha-section-head {
    display: block;
  }
  .alpha-card,
  .alpha-step,
  .alpha-ready-copy,
  .alpha-cta {
    padding: 22px;
  }
  .alpha-timeline {
    grid-template-columns: 1fr;
  }
  .alpha-bridge {
    width: min(420px, 100%);
  }
  .alpha-bridge::before {
    left: 50%;
    transform: translateX(-50%);
  }
  .alpha-bridge::after {
    left: 50%;
    transform: translateX(-50%);
  }
  .alpha-bridge-step {
    grid-template-columns: minmax(0, 1fr) 46px minmax(0, 1fr);
    gap: 10px;
    min-height: 64px;
  }
  .alpha-bridge-step span {
    grid-column: 2;
    width: 34px;
    height: 34px;
  }
  .alpha-bridge-step strong {
    grid-column: 3;
    max-width: 120px;
    text-align: left;
    transform: translateX(-8px);
  }
  .alpha-bridge-step:nth-child(even) strong {
    grid-column: 1;
    text-align: right;
    transform: translateX(8px);
    justify-self: end;
  }
  .alpha-bridge-step.is-checked strong,
  .alpha-bridge-step:nth-child(even).is-checked strong {
    transform: translateX(0);
  }
  .alpha-checklist {
    grid-template-columns: 1fr;
  }
  .alpha-cta-actions .btn {
    width: 100%;
    justify-content: center;
  }
}