:root {
  color-scheme: dark;
  --bg: #111514;
  --bg-deep: #090c0b;
  --surface: #191f1d;
  --surface-soft: #222927;
  --line: #3a4541;
  --text: #f4f7f6;
  --muted: #b1bbb7;
  --subtle: #7f8c87;
  --sync: #67d9b3;
  --sync-deep: #2e8d70;
  --coral: #ff8375;
  --amber: #e5b84b;
  --cyan: #77cbe6;
  font-family: 'Segoe UI', 'Yu Gothic UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

img {
  max-width: 100%;
}

h1,
h2,
p,
figure {
  margin: 0;
}

h1,
h2 {
  line-height: 1.12;
  letter-spacing: 0;
}

h1 {
  font-size: 64px;
}

h2 {
  font-size: 34px;
}

code {
  font-family: Consolas, 'Cascadia Mono', monospace;
}

.shell {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(9, 12, 11, 0.92);
  backdrop-filter: blur(18px);
}

.site-header::after {
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--sync), var(--amber), var(--coral), var(--cyan));
  content: '';
}

.nav-shell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 22px;
  align-items: center;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  min-width: 180px;
}

.brand:hover,
.product-tabs a:hover {
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  object-fit: cover;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  line-height: 1.1;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.product-tabs {
  display: flex;
  justify-content: center;
  min-width: 0;
}

.product-tabs a {
  display: grid;
  min-width: 112px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.14);
  padding: 12px 14px 10px;
  color: var(--muted);
}

.product-tabs a:hover {
  border-bottom-color: var(--tab-accent);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
}

.product-tabs a.active {
  border-bottom-color: var(--tab-accent);
  background: color-mix(in srgb, var(--tab-accent) 12%, transparent);
  color: var(--text);
}

.product-tabs span {
  font-weight: 800;
}

.product-tabs small {
  color: var(--subtle);
  font-size: 11px;
}

.tool-links {
  display: flex;
  justify-content: flex-end;
  min-width: 54px;
}

.tool-links a {
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 6px;
  padding: 7px 11px;
  color: var(--muted);
  font-size: 13px;
}

main {
  overflow: hidden;
}

.hero {
  position: relative;
  display: flex;
  min-height: min(720px, calc(100svh - 112px));
  align-items: center;
  overflow: hidden;
  background: #101412;
}

.hero-backdrop {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(8, 11, 10, 0.98) 0%, rgba(8, 11, 10, 0.91) 31%, rgba(8, 11, 10, 0.28) 64%, rgba(8, 11, 10, 0.12) 100%),
    linear-gradient(180deg, rgba(8, 11, 10, 0.08), rgba(8, 11, 10, 0.58)),
    url('assets/media/perfectsync-unity.webp');
  background-position: center;
  background-size: cover;
  transform: scale(1.01);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 64px 0 76px;
}

.eyebrow {
  margin-bottom: 14px;
  color: var(--sync);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.lead {
  margin-top: 22px;
  color: #e5fff5;
  font-size: 24px;
  font-weight: 700;
}

.hero-body {
  max-width: 590px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 16px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 22px;
  color: #d4ded9;
  font-size: 13px;
  font-weight: 700;
}

.hero-meta span::before {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--sync);
  content: '';
  vertical-align: 1px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.075);
  font-weight: 800;
}

.button.primary {
  border-color: #73e6bf;
  background: var(--sync);
  color: #0b2119;
}

.button:hover {
  text-decoration: none;
  filter: brightness(1.08);
}

.text-link {
  color: #c6d0cc;
  font-weight: 700;
}

.hero-caption {
  position: absolute;
  right: 24px;
  bottom: 18px;
  z-index: 1;
  color: rgba(255, 255, 255, 0.66);
  font-size: 11px;
}

.workflow-band {
  border-block: 1px solid rgba(255, 255, 255, 0.1);
  background: #151b19;
}

.workflow-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.workflow-rail span {
  min-height: 78px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 18px;
  color: #dbe3e0;
  font-weight: 700;
}

.workflow-rail span:last-child {
  border-right: 0;
}

.workflow-rail strong {
  margin-right: 10px;
  color: var(--sync);
  font-size: 12px;
}

.product-section,
.results-section {
  padding: 84px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1fr);
  gap: 12px 52px;
  align-items: end;
  margin-bottom: 34px;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.section-heading > p:last-child {
  color: var(--muted);
}

.wide-shot {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: #0c0f0e;
  box-shadow: 0 26px 70px rgba(0, 0, 0, 0.3);
}

.wide-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.wide-shot figcaption {
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 12px 15px;
  color: var(--muted);
  font-size: 13px;
}

.auto-band {
  border-block: 1px solid rgba(255, 255, 255, 0.09);
  padding: 76px 0;
  background:
    linear-gradient(90deg, rgba(103, 217, 179, 0.07), transparent 42%),
    #151a18;
}

.auto-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(360px, 0.82fr);
  gap: 72px;
  align-items: center;
}

.auto-copy > p:not(.eyebrow) {
  margin-top: 20px;
  color: var(--muted);
}

.auto-copy ul {
  display: grid;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.auto-copy li {
  border-left: 3px solid var(--sync-deep);
  padding-left: 14px;
  color: #dbe5e1;
}

.dialog-shot {
  justify-self: end;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  background: #f1f1f1;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
}

.dialog-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.section-heading.compact {
  grid-template-columns: minmax(280px, 0.7fr) minmax(320px, 1fr);
}

.result-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.18fr);
  gap: 22px;
  align-items: stretch;
}

.result-grid figure {
  display: flex;
  overflow: hidden;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: var(--surface);
}

.result-grid img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 310px;
  object-fit: cover;
}

.result-grid figcaption {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  padding: 12px 15px;
  color: var(--muted);
  font-size: 13px;
}

.result-grid figcaption strong {
  color: var(--text);
}

.result-grid figcaption a {
  color: var(--cyan);
}

.capability-band {
  border-block: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--surface);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.capability-grid article {
  min-height: 160px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  padding: 28px 20px;
}

.capability-grid article:last-child {
  border-right: 0;
}

.capability-grid h2 {
  color: #d9fff1;
  font-size: 20px;
}

.capability-grid p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.install-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.72fr) minmax(420px, 1fr);
  gap: 54px;
  align-items: center;
  padding: 84px 0;
}

.install-main > p:not(.eyebrow) {
  margin-top: 14px;
  color: var(--muted);
}

.install-details {
  display: grid;
  gap: 14px;
}

.install-details div {
  display: grid;
  gap: 7px;
}

.install-details strong {
  color: #dce6e2;
  font-size: 13px;
}

.install-details code {
  display: block;
  overflow-x: auto;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 6px;
  padding: 13px 14px;
  background: rgba(0, 0, 0, 0.25);
  color: #d9fff1;
  font-size: 12px;
  white-space: nowrap;
}

footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  background: var(--bg-deep);
  color: var(--muted);
  font-size: 14px;
}

.footer-shell {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-shell a {
  color: var(--sync);
}

@media (max-width: 1040px) {
  h1 {
    font-size: 52px;
  }

  .nav-shell {
    grid-template-columns: auto 1fr;
    gap: 10px 18px;
    padding: 12px 0;
  }

  .product-tabs {
    justify-content: flex-start;
    overflow-x: auto;
  }

  .tool-links {
    display: none;
  }

  .auto-grid,
  .install-section {
    grid-template-columns: 1fr;
  }

  .dialog-shot {
    justify-self: start;
  }

  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .capability-grid article:nth-child(2n) {
    border-right: 0;
  }

  .capability-grid article:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 28px, 1160px);
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 28px;
  }

  .nav-shell {
    grid-template-columns: 1fr;
  }

  .brand {
    min-width: 0;
  }

  .product-tabs {
    width: 100%;
  }

  .product-tabs a {
    min-width: 88px;
    padding-inline: 6px;
    font-size: 13px;
  }

  .product-tabs small {
    font-size: 10px;
  }

  .hero {
    min-height: calc(100svh - 156px);
  }

  .hero-backdrop {
    background-image:
      linear-gradient(90deg, rgba(8, 11, 10, 0.95), rgba(8, 11, 10, 0.62)),
      linear-gradient(180deg, rgba(8, 11, 10, 0.12), rgba(8, 11, 10, 0.72)),
      url('assets/media/perfectsync-unity.webp');
    background-position: 61% center;
  }

  .hero-content {
    padding: 48px 0 62px;
  }

  .lead {
    font-size: 20px;
  }

  .hero-caption {
    display: none;
  }

  .workflow-rail,
  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-rail span:nth-child(2n) {
    border-right: 0;
  }

  .workflow-rail span:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .product-section,
  .results-section {
    padding: 62px 0;
  }

  .section-heading,
  .section-heading.compact {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .section-heading .eyebrow {
    grid-column: auto;
  }

  .auto-band {
    padding: 60px 0;
  }

  .auto-grid {
    gap: 36px;
  }

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

  .result-grid img {
    height: auto;
    min-height: 0;
  }

  .install-section {
    gap: 34px;
    padding: 62px 0;
  }
}

@media (max-width: 430px) {
  h1 {
    font-size: 36px;
  }

  .workflow-rail,
  .capability-grid {
    grid-template-columns: 1fr;
  }

  .workflow-rail span,
  .capability-grid article {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .workflow-rail span:last-child,
  .capability-grid article:last-child {
    border-bottom: 0;
  }

  .actions .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}