:root {
  --bg: #f8f9fa;
  --bg-strong: #eef4ff;
  --card: #ffffff;
  --text: #212529;
  --muted: #495057;
  --accent: #0d6efd;
  --accent-2: #0b5ed7;
  --line: #d7e1f2;
  --shadow: 0 12px 28px rgba(13, 42, 84, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 8%, rgba(13, 110, 253, 0.16), transparent 38%),
    radial-gradient(circle at 12% 22%, rgba(13, 110, 253, 0.08), transparent 36%),
    linear-gradient(180deg, var(--bg), var(--bg-strong));
  line-height: 1.55;
  overflow-x: hidden;
}

h1,
h2,
h3 {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.7rem;
}

p {
  margin: 0 0 1rem;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.background-orb {
  position: fixed;
  width: 34rem;
  height: 34rem;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.33;
  pointer-events: none;
  z-index: -1;
}

.orb-a {
  top: -10rem;
  right: -10rem;
  background: #9ec5fe;
}

.orb-b {
  bottom: -12rem;
  left: -10rem;
  background: #cfe2ff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 4.2rem;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
}

.brand img {
  width: 6.1rem;
  height: 2rem;
  object-fit: contain;
  border-radius: 0.4rem;
  padding: 0.1rem 0.2rem;
  background: #ffffff;
  border: 1px solid var(--line);
}

nav {
  display: flex;
  gap: 1rem;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}

nav a:hover,
nav a:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.section {
  padding: 5.4rem 0;
  position: relative;
}

.hero {
  padding-top: 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  letter-spacing: -0.03em;
}

.hero p {
  color: var(--muted);
  font-size: 1.08rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-2);
  font-weight: 700;
  font-size: 0.75rem;
  margin-bottom: 0.9rem;
}

.hero-actions {
  margin: 1.4rem 0 1.8rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.btn {
  border-radius: 999px;
  text-decoration: none;
  padding: 0.7rem 1.15rem;
  font-weight: 600;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #0b5ed7;
}

.btn-ghost {
  color: var(--accent);
  border-color: #b6d4fe;
  background: #ffffff;
}

.quick-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.quick-stats li {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 0.85rem;
}

.stat-num {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
  display: block;
  white-space: nowrap;
}

.stat-label {
  color: var(--muted);
  font-size: 0.84rem;
}

.hero-media img {
  border-radius: 1rem;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.section-head {
  max-width: 42rem;
  margin-bottom: 2rem;
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  letter-spacing: -0.02em;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.2rem;
  box-shadow: var(--shadow);
}

.card p {
  color: var(--muted);
}

.section-workflow {
  background: #f3f8ff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.dataflow-callout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #ffffff;
  box-shadow: var(--shadow);
  padding: 1rem;
  margin-bottom: 1rem;
}

.dataflow-copy p {
  color: var(--muted);
  margin-bottom: 0;
}

.dataflow-visual img {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
}

.zoomable-image {
  cursor: zoom-in;
}

.zoomable-image:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.dataflow-visual video {
  width: 100%;
  display: block;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #000000;
}

.on-demand-video {
  display: grid;
  gap: 0.6rem;
}

.video-load-btn {
  justify-self: start;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #ffffff;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.video-load-btn:hover,
.video-load-btn:focus-visible {
  background: #0b5ed7;
  border-color: #0b5ed7;
}

.video-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.video-status a {
  color: var(--accent-2);
  font-weight: 600;
}

.media-caption {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.timeline-item {
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.step {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  font-weight: 700;
  color: var(--accent);
}

.timeline-item p {
  color: var(--muted);
}

.timeline-item img {
  margin-top: 0.8rem;
  border-radius: 0.75rem;
  border: 1px solid var(--line);
}

.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.checklist li {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  padding: 0.75rem 0.85rem;
}

.checklist li::before {
  content: "+ ";
  color: var(--accent-2);
  font-weight: 700;
}

.diagram img {
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.shot {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow);
}

.shot img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  cursor: zoom-in;
}

.shot figcaption {
  padding: 0.7rem 0.8rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.shot img:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  background: rgba(10, 25, 49, 0.9);
  padding: 1.2rem;
}

.lightbox[hidden] {
  display: none;
}

.lightbox-figure {
  margin: 0;
  width: min(1200px, 96vw);
}

.lightbox-figure img {
  width: 100%;
  max-height: 82vh;
  object-fit: contain;
  border-radius: 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.lightbox-figure figcaption {
  margin-top: 0.65rem;
  color: #f4f2ef;
  font-size: 0.95rem;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  border: 1px solid #9ec5fe;
  background: rgba(13, 110, 253, 0.85);
  color: #ffffff;
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid #9ec5fe;
  background: rgba(13, 110, 253, 0.86);
  color: #ffffff;
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
  font-weight: 700;
  cursor: pointer;
}

.lightbox-prev {
  left: 1rem;
}

.lightbox-next {
  right: 1rem;
}

.lightbox-position {
  margin: 0.45rem 0 0;
  color: rgba(244, 242, 239, 0.92);
  font-size: 0.83rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #0b5ed7;
  color: #eff6ff;
}

.footer-wrap {
  min-height: 4.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
  flex-wrap: wrap;
}

.footer-wrap p {
  margin: 0;
}

.footer-legal {
  width: 100%;
  font-size: 0.8rem;
  line-height: 1.35;
  opacity: 0.95;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-grid,
  .feature-split,
  .dataflow-callout {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 680px) {
  nav {
    display: none;
  }

  .section {
    padding: 4.2rem 0;
  }

  .feature-grid,
  .gallery-grid,
  .timeline,
  .quick-stats {
    grid-template-columns: 1fr;
  }

  .container {
    width: min(1120px, calc(100% - 1.2rem));
  }

  .hero {
    padding-top: 2.7rem;
  }

  .lightbox-nav {
    top: auto;
    bottom: 1rem;
    transform: none;
  }

  .lightbox-prev {
    left: 1rem;
  }

  .lightbox-next {
    right: 1rem;
  }
}