:root {
  --bg: #ffffff;
  --bg-alt: #f7f7f8;
  --surface: #ffffff;
  --text: #1e1e1e;
  --text-dim: #6b6b6b;
  --text-faint: #a0a0a0;
  --accent: #0d99ff;
  --accent-2: #7c3aed;
  --accent-pink: #ff5c8a;
  --accent-orange: #ff7a59;
  --accent-green: #14ae5c;
  --border: #e5e5e7;
  --border-strong: #d0d0d3;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
  --max-width: 1200px;
  --content-width: 880px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Rubik", -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, "Helvetica Neue", Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

code,
pre code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

a {
  color: var(--text);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ---------- Header / nav ---------- */
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.nav .brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  margin-right: auto;
  letter-spacing: -0.01em;
}

.nav .brand span {
  color: var(--accent);
}

.nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav a.nav-link {
  color: var(--text-dim);
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease, background 0.15s ease;
}

.nav a.nav-link:hover {
  color: var(--text);
  background: var(--bg-alt);
  text-decoration: none;
}

.nav a.nav-link.active {
  color: var(--text);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.08s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  background: var(--bg-alt);
  border-color: var(--text);
}

.btn-primary {
  background: var(--text);
  border-color: var(--text);
  color: #fff;
}

.btn-primary:hover {
  background: #000;
  border-color: #000;
  color: #fff;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
  text-align: center;
  position: relative;
  overflow: visible;
}

.hero > h1,
.hero > p,
.hero > .cta,
.hero > .hero-visual {
  position: relative;
  z-index: 2;
}

.robot-arm {
  position: absolute;
  top: -2rem;
  width: clamp(320px, 42vw, 640px);
  height: auto;
  pointer-events: none;
  user-select: none;
  z-index: 1;
  mix-blend-mode: multiply;
}

.robot-arm-left {
  left: calc((100% - 100vw) / 2 - 80px);
}

.robot-arm-right {
  top: -1.25rem;
  right: calc((100% - 100vw) / 2 - 80px);
}

@media (max-width: 900px) {
  .robot-arm {
    width: clamp(220px, 38vw, 360px);
    top: -1rem;
  }
  .robot-arm-left { left: calc((100% - 100vw) / 2 - 40px); }
  .robot-arm-right { right: calc((100% - 100vw) / 2 - 40px); }
}

@media (max-width: 600px) {
  .robot-arm { display: none; }
}

.ball-track {
  position: absolute;
  top: var(--ball-track-top, 11rem);
  left: 0;
  right: 0;
  height: 0;
  pointer-events: none;
  z-index: 1;
}

.ball-x {
  position: absolute;
  top: 0;
  left: var(--ball-start-x, 11vw);
  width: 38px;
  height: 38px;
  animation: ball-x 1.5s ease-in-out infinite alternate;
}

@keyframes ball-x {
  to { transform: translateX(var(--ball-travel-x, calc(61vw - 38px))); }
}

.ball-y {
  width: 100%;
  height: 100%;
  animation: ball-y 1.5s infinite alternate;
}

@keyframes ball-y {
  0%   { transform: translateY(25px); animation-timing-function: cubic-bezier(0.33, 0, 0.67, 1); }
  50%  { transform: translateY(-200px); animation-timing-function: cubic-bezier(0.33, 0, 0.67, 1); }
  100% { transform: translateY(45px); }
}

.ball {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 30%, #ffd9b8 0%, #ff8a4c 45%, #d44a1c 100%);
  box-shadow:
    0 14px 22px rgba(212, 74, 28, 0.22),
    inset -4px -5px 10px rgba(0, 0, 0, 0.18);
}

@media (max-width: 900px) {
  .ball-track { top: 8rem; }
  .ball-x { width: 28px; height: 28px; }
  @keyframes ball-y-mobile {
    0%   { transform: translateY(0); animation-timing-function: cubic-bezier(0.33, 0, 0.67, 1); }
    50%  { transform: translateY(-130px); animation-timing-function: cubic-bezier(0.33, 0, 0.67, 1); }
    100% { transform: translateY(28px); }
  }
  .ball-y { animation-name: ball-y-mobile; }
}

@media (max-width: 600px) {
  .ball-track { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ball-x, .ball-y { animation: none; }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 1.5rem;
  color: var(--text);
}

.hero h1 .gradient-text {
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 1.25rem;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.5;
}

.hero p.lead.byline {
  margin-bottom: 0.9rem;
  line-height: 1.45;
}

.hero p.lead.byline strong {
  color: var(--text);
}

.hero p.lead.hero-subtext {
  font-size: 1.1rem;
  max-width: 760px;
  margin-bottom: 1.25rem;
  line-height: 1.6;
}

.hero .cta {
  display: inline-flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ---------- Hero visual ---------- */
.hero-visual {
  max-width: 1100px;
  margin: 3rem auto 0;
  padding: 0 1.5rem;
}

.home-video-section {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding: 0 1.5rem;
}

.home-video-section .section-heading {
  margin-bottom: 1rem;
}

.home-video-section .hero-visual {
  max-width: none;
  margin: 1rem 0 0;
  padding: 0;
}

.hero-visual-frame {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  aspect-ratio: 16 / 9;
  background:
    radial-gradient(circle at 20% 20%, rgba(13, 153, 255, 0.18), transparent 50%),
    radial-gradient(circle at 80% 30%, rgba(124, 58, 237, 0.18), transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(255, 92, 138, 0.15), transparent 50%),
    linear-gradient(135deg, #fafafa, #eef2f7);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-frame iframe {
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
}

.hero-visual-placeholder {
  color: var(--text-faint);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.video-link {
  margin: 0.9rem 0 0;
  text-align: center;
}

/* ---------- Team section ---------- */
.team-section {
  max-width: var(--max-width);
  margin: 2.5rem auto 0;
  padding: 0 1.5rem;
}

.team-list {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.team-member {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  padding: 1rem;
  box-shadow: var(--shadow-sm);
}

.team-photo {
  width: 120px;
  height: 150px;
  object-fit: cover;
  border-radius: 10px;
  display: block;
  flex-shrink: 0;
}

.team-photo-placeholder {
  width: 120px;
  height: 150px;
  border-radius: 10px;
  border: 1px dashed var(--border);
  background: linear-gradient(135deg, #f7f9fc, #edf2f8);
  color: var(--text-faint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.team-info h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.team-info p {
  margin: 0;
  color: var(--text-dim);
  line-height: 1.45;
  font-size: 0.94rem;
}

.end-banner {
  max-width: var(--max-width);
  margin: 5rem auto 0;
  padding: 4rem 1.5rem 5.5rem;
  text-align: center;
}

.end-banner p {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dim);
}

@media (max-width: 1000px) {
  .team-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .team-member {
    flex-direction: row;
    align-items: flex-start;
  }

  .team-photo {
    width: 100px;
    height: 125px;
  }

  .team-photo-placeholder {
    width: 100px;
    height: 125px;
  }
}

/* ---------- Logo / tech strip ---------- */
.logo-strip {
  max-width: var(--max-width);
  margin: 4rem auto 0;
  padding: 2rem 1.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.logo-strip p {
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 1.25rem;
}

.logo-strip .logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem 2.5rem;
  color: var(--text-dim);
  font-weight: 600;
  font-size: 1.05rem;
}

.logo-strip .logos span {
  opacity: 0.7;
  transition: opacity 0.15s ease;
}

.logo-strip .logos span:hover {
  opacity: 1;
  color: var(--text);
}

/* ---------- Feature sections ---------- */
.feature-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-section.reverse .feature-text {
  order: 2;
}

.feature-text .eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.feature-text h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 1rem;
}

.feature-text p {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin: 0 0 1.5rem;
}

.feature-text .arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--text);
  padding-bottom: 2px;
}

.feature-text .arrow-link:hover {
  text-decoration: none;
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.feature-visual {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  background: linear-gradient(135deg, #fafafa, #eef2f7);
}

.feature-visual.tint-blue {
  background:
    radial-gradient(circle at 30% 30%, rgba(13, 153, 255, 0.25), transparent 60%),
    linear-gradient(135deg, #f4f8fd, #e7f0fb);
}

.feature-visual.tint-purple {
  background:
    radial-gradient(circle at 70% 30%, rgba(124, 58, 237, 0.25), transparent 60%),
    linear-gradient(135deg, #f6f3fd, #ede5fa);
}

.feature-visual.tint-pink {
  background:
    radial-gradient(circle at 30% 70%, rgba(255, 92, 138, 0.25), transparent 60%),
    linear-gradient(135deg, #fdf3f7, #fae0ec);
}

.feature-visual.tint-green {
  background:
    radial-gradient(circle at 50% 30%, rgba(20, 174, 92, 0.22), transparent 60%),
    linear-gradient(135deg, #f1faf5, #ddefe4);
}

@media (max-width: 800px) {
  .feature-section {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 4rem 1.5rem;
  }
  .feature-section.reverse .feature-text {
    order: 0;
  }
}

/* ---------- Section heading (centered) ---------- */
.section-heading {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
  text-align: center;
}

.section-heading h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.section-heading p {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- Card grid ---------- */
.card-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 5rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  display: block;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  color: var(--text);
}

.card:hover {
  text-decoration: none;
  transform: translateY(-3px);
  border-color: var(--text);
  box-shadow: var(--shadow-md);
}

.card .card-thumb {
  height: 140px;
  border-radius: 8px;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fafafa, #eef2f7);
}

.card .card-thumb-image {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 1rem;
  display: block;
}

.card .card-thumb.tint-blue { background: linear-gradient(135deg, #e7f0fb, #d0e3f7); }
.card .card-thumb.tint-purple { background: linear-gradient(135deg, #ede5fa, #d8c8f5); }
.card .card-thumb.tint-pink { background: linear-gradient(135deg, #fae0ec, #f5c5d8); }
.card .card-thumb.tint-green { background: linear-gradient(135deg, #ddefe4, #c2e3ce); }
.card .card-thumb.tint-orange { background: linear-gradient(135deg, #fde6db, #f7c9b1); }
.card .card-thumb.tint-yellow { background: linear-gradient(135deg, #fbf3d3, #f5e7a0); }

.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- CTA banner ---------- */
.cta-banner {
  max-width: var(--max-width);
  margin: 4rem auto;
  padding: 4rem 2rem;
  border-radius: 20px;
  text-align: center;
  background: linear-gradient(135deg, #1e1e1e, #2a2a2a);
  color: #fff;
}

.cta-banner h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto 2rem;
}

.cta-banner .btn {
  background: #fff;
  border-color: #fff;
  color: var(--text);
}

.cta-banner .btn:hover {
  background: #f0f0f0;
}

/* ---------- Inner pages content ---------- */
main {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

main h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

main h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 2.5rem 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

main h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.75rem 0 0.5rem;
  color: var(--text);
}

main p {
  color: var(--text);
}

main ul,
main ol {
  padding-left: 1.4rem;
}

main li {
  margin: 0.3rem 0;
}

main blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.25rem 0;
  padding: 0.5rem 1rem;
  color: var(--text-dim);
  background: var(--bg-alt);
  border-radius: 0 8px 8px 0;
}

.subtitle {
  color: var(--text-dim);
  font-size: 1.15rem;
  margin: 0 0 2rem;
}

/* ---------- Figures / images ---------- */
figure {
  margin: 1.5rem 0;
  text-align: center;
}

figure img {
  max-width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.end-effector-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-items: start;
}

.end-effector-gallery figure {
  margin: 1rem 0;
}

@media (max-width: 640px) {
  .end-effector-gallery {
    grid-template-columns: 1fr;
  }
}

main img.goal-photo {
  width: min(560px, 100%);
  display: block;
  margin: 0 auto;
}

main img.goal-diagram {
  width: min(760px, 100%);
  display: block;
  margin: 0 auto;
}

figcaption {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* ---------- Code ---------- */
code {
  background: var(--bg-alt);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid var(--border);
}

pre {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  overflow-x: auto;
}

pre code {
  background: none;
  padding: 0;
  border: none;
}

/* ---------- Videos page ---------- */
main.videos-page {
  max-width: var(--max-width);
  padding-top: 0;
}

.videos-hero {
  text-align: center;
  padding: 5rem 1.5rem 1rem;
  max-width: 720px;
  margin: 0 auto;
}

.videos-hero .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 1rem;
}

.videos-hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 1rem;
}

.videos-hero p {
  font-size: 1.1rem;
  color: var(--text-dim);
  margin: 0;
}

.video-section {
  padding: 6rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.video-section .section-num {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  margin-bottom: 0.75rem;
}

.video-frame {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  box-shadow: var(--shadow-md);
}

.video-frame.ar-16-9 { aspect-ratio: 16 / 9; }
.video-frame.ar-9-16 { aspect-ratio: 9 / 16; }
.video-frame.ar-1-1  { aspect-ratio: 1 / 1; }

.video-frame video,
.video-frame .video-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border: none;
  border-radius: 0;
}

.video-frame .video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.video-placeholder.tint-blue { background: linear-gradient(135deg, #e7f0fb, #d0e3f7); }
.video-placeholder.tint-purple { background: linear-gradient(135deg, #ede5fa, #d8c8f5); }
.video-placeholder.tint-pink { background: linear-gradient(135deg, #fae0ec, #f5c5d8); }
.video-placeholder.tint-green { background: linear-gradient(135deg, #ddefe4, #c2e3ce); }
.video-placeholder.tint-orange { background: linear-gradient(135deg, #fde6db, #f7c9b1); }
.video-placeholder.tint-yellow { background: linear-gradient(135deg, #fbf3d3, #f5e7a0); }

/* Full-bleed cinematic section */
.video-section.full-bleed {
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(-50vw + 50%);
  padding-left: 0;
  padding-right: 0;
}

.video-section.full-bleed .video-frame {
  border-radius: 0;
  border-left: none;
  border-right: none;
  max-height: 78vh;
}

.video-section.full-bleed .video-cap {
  max-width: var(--max-width);
  margin: 1.5rem auto 0;
  padding: 0 1.5rem;
  font-size: 1.15rem;
  color: var(--text-dim);
  text-align: center;
}

/* Split section */
.video-section.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.video-section.split.reverse .split-text {
  order: 2;
}

.split-text h2 {
  font-size: clamp(1.75rem, 3.8vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 0 0 1rem;
}

.split-text p {
  color: var(--text-dim);
  font-size: 1.1rem;
  margin: 0;
}

.video-section.split .video-frame.ar-9-16 {
  max-width: 380px;
  margin: 0 auto;
}

@media (max-width: 800px) {
  .video-section.split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .video-section.split.reverse .split-text {
    order: 0;
  }
}

/* Cluster section */
.video-section.cluster {
  text-align: center;
}

.video-section.cluster h2 {
  font-size: clamp(1.75rem, 3.8vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 0 auto 3.5rem;
  max-width: 640px;
}

.cluster-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.cluster-grid .video-frame.offset-down {
  margin-top: 5rem;
}

.cluster-grid .video-frame.offset-up {
  margin-top: -2rem;
}

@media (max-width: 800px) {
  .cluster-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .cluster-grid .video-frame.offset-down,
  .cluster-grid .video-frame.offset-up {
    margin-top: 0;
  }
}

/* Wide centered section */
.video-section.wide {
  text-align: center;
}

.video-section.wide .video-frame {
  max-width: 980px;
  margin: 0 auto;
}

.video-section.wide .video-cap {
  margin-top: 1.5rem;
  font-size: 1.05rem;
  color: var(--text-dim);
}

/* Finale section */
.video-section.finale {
  text-align: center;
  padding-bottom: 8rem;
}

.video-section.finale h2 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 2.5rem;
}

.video-section.finale .video-frame {
  max-width: 1080px;
  margin: 0 auto;
}

/* Reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(48px) scale(0.985);
  transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0) scale(1);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.9rem;
  padding: 2rem 1.5rem;
  text-align: center;
  background: var(--bg-alt);
}

.site-footer a {
  color: var(--text-dim);
}

.site-footer a:hover {
  color: var(--text);
}