/* Page styles for installation.html */
.install-hero {
  position: relative;
  padding: 150px var(--pad-x) 76px;
  text-align: center;
  overflow: hidden;
}

.install-hero::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 44%;
  width: min(780px, 92vw);
  height: 420px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(
    ellipse at center,
    rgba(124, 58, 237, 0.24),
    transparent 64%
  );
  filter: blur(26px);
  pointer-events: none;
}

.install-hero > * {
  position: relative;
}

.install-hero .badge {
  display: inline-flex;
  margin-bottom: 20px;
}

.install-h1 {
  font-family: var(--font-head);
  font-size: clamp(32px, 7vw, 78px);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.02;
  text-transform: uppercase;
  margin-bottom: 18px;
  overflow-wrap: break-word;
}

.install-sub {
  color: var(--text-muted);
  font-size: 17px;
  line-height: 1.75;
  max-width: 620px;
  margin: 0 auto;
}

.install-body {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px var(--pad-x) 110px;
}

.install-intro {
  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)
    );
}

.install-intro::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);
}

.install-intro-label {
  color: var(--accent-light);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.install-intro p {
  max-width: 760px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
  margin: 0;
}

.install-step {
  padding: 54px 0;
  border-top: 1px solid var(--border);
}

.install-step-head {
  margin-bottom: 26px;
}

.install-step-head span {
  display: block;
  color: var(--accent-light);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.install-step-head h2,
.install-finish h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.1;
}

.install-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 24px;
  align-items: stretch;
}

.install-grid > * {
  min-width: 0;
}

.install-video {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background:
    linear-gradient(
      135deg,
      rgba(124, 58, 237, 0.12),
      rgba(255, 255, 255, 0.02)
    ),
    rgba(255, 255, 255, 0.018);
  overflow: hidden;
}

.install-video iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.install-video-placeholder {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 24px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.install-video-placeholder::before {
  content: "";
  position: absolute;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(168, 85, 247, 0.24),
    transparent 68%
  );
  filter: blur(10px);
  z-index: 0;
}

.install-video-placeholder::after {
  content: "";
  position: relative;
  z-index: 1;
  order: -1;
  width: 14px;
  height: 14px;
  margin-right: 12px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent), #22d3ee);
  box-shadow: 0 0 16px rgba(168, 85, 247, 0.55);
  transform: rotate(45deg);
}

.install-copy {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 30px;
  background: rgba(255, 255, 255, 0.022);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.install-copy h3 {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.install-copy p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 26px;
}

.install-copy .btn {
  margin-top: auto;
}

.install-finish {
  border-top: 1px solid var(--border);
  padding-top: 54px;
  display: grid;
  grid-template-columns: 1fr minmax(240px, 0.45fr);
  gap: 26px;
  align-items: start;
}

.install-finish p {
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  max-width: 620px;
  margin-top: 12px;
}

.install-checklist {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.022);
  display: grid;
  gap: 12px;
}

.install-checklist li {
  position: relative;
  color: var(--text-muted);
  font-size: 14px;
  padding-left: 24px;
}

.install-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-light);
  font-weight: 700;
}

.install-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (max-width: 860px) {
  .install-grid,
  .install-finish {
    grid-template-columns: 1fr;
  }

  .install-video,
  .install-video-placeholder {
    min-height: 220px;
  }
}

@media (max-width: 560px) {
  .install-hero {
    padding-top: 128px;
  }

  .install-copy,
  .install-checklist {
    padding: 22px;
  }

  .install-actions .btn {
    width: 100%;
  }
}