.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  height: var(--nav-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 22px;
  background: rgba(245, 245, 247, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: background 400ms var(--ease), border-color 400ms var(--ease);
}

.nav.scrolled {
  background: rgba(245, 245, 247, 0.92);
  border-bottom-color: var(--hairline);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand img {
  width: 20px;
  height: 20px;
  border-radius: 5px;
}

.nav-links {
  display: flex;
  gap: 22px;
}

.nav-links a,
.nav-sheet a {
  font-size: 12px;
  font-weight: 400;
  color: var(--fg-2);
  text-decoration: none;
}

.nav-links a:hover,
.nav-sheet a:hover { color: var(--fg); }

.nav-cta { justify-self: end; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--ink);
  color: var(--porcelain);
  text-decoration: none;
  font-size: 17px;
  font-weight: 590;
  letter-spacing: -0.01em;
  padding: 14px 28px;
  border-radius: var(--r-pill);
  border: 0;
  cursor: pointer;
  transition: filter 200ms var(--ease), transform 200ms var(--ease);
}

.btn:hover { filter: brightness(1.06); }

.btn-pill {
  font-size: 12px;
  font-weight: 500;
  padding: 8px 16px;
  color: var(--porcelain);
}

.btn-ink {
  background: var(--ink);
  color: var(--porcelain);
}

.link {
  color: var(--ink);
  text-decoration: none;
  font-size: 17px;
  font-weight: 400;
}

.link:hover { text-decoration: underline; }

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 28px;
  align-items: center;
}

.cta-row.center { justify-content: center; }

.menu-btn {
  display: none;
  justify-self: end;
  background: transparent;
  border: 1px solid var(--hairline-2);
  border-radius: var(--r-pill);
  padding: 6px 14px;
  font-size: 12px;
  cursor: pointer;
}

.nav-sheet {
  display: none;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 28px;
  transition: border-color 240ms var(--ease);
}

.card:hover { border-color: var(--hairline-2); }

.fact {
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  padding: 28px 24px;
}

.fact strong {
  display: block;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}

.fact p {
  margin: 0;
  color: var(--fg-2);
  font-size: 15px;
  line-height: 1.45;
}

.code {
  display: inline-block;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 14px;
  background: var(--bg-elev-2);
  border: 1px solid var(--hairline);
  border-radius: 10px;
  padding: 8px 12px;
  color: var(--fg);
}

/* Silver MacBook Pro frame. Screen content sits inside .mbp-screen. */
.stage {
  position: relative;
  display: grid;
  justify-items: center;
  margin-top: 72px;
}

/* Apple MacBook Pro 14" silver frame. Screen window matches the transparent hole. */
.device {
  position: relative;
  width: 100%;
  max-width: 560px;
  margin-inline: auto;
  aspect-ratio: 3824 / 2564;
  filter: drop-shadow(0 28px 36px rgba(0, 0, 0, 0.12));
}

.device-lg { max-width: 920px; }

.device-screen {
  position: absolute;
  left: 10.46%;
  top: 11.7%;
  width: 79.08%;
  height: 76.6%;
  background-color: #1c1c1e;
  background-repeat: no-repeat;
  background-position: center top;
  background-size: cover;
}

.device-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  user-select: none;
}

.mbp {
  width: 100%;
  max-width: 560px;
  margin-inline: auto;
  filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.14));
}

.mbp-lg { max-width: 840px; }

.panel.on { width: 100%; }

.mbp-lid {
  background: linear-gradient(180deg, #ececef 0%, #c8c9d0 100%);
  border: 1px solid #a3a4ab;
  border-bottom: none;
  border-radius: 18px 18px 3px 3px;
  padding: 11px 11px 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

.mbp-screen {
  position: relative;
  background: #3a3a3c;
  border-radius: 3px 3px 0 0;
  min-height: 300px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 46px 16px 22px;
}

.mbp-screen.is-collapsed {
  min-height: 280px;
  padding: 0;
}

.mbp-menu {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: rgba(0, 0, 0, 0.28);
  color: rgba(255, 255, 255, 0.72);
  font-size: 11px;
  letter-spacing: -0.01em;
  z-index: 2;
}

.mbp-notch {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 6;
  width: 168px;
  height: 26px;
  transform: translateX(-50%);
  background: #0a0a0c;
  border-radius: 0 0 12px 12px;
}

.mbp-notch::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 8px;
  width: 7px;
  height: 7px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #4a4d58, #12141a 68%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.mbp-hinge {
  height: 8px;
  margin: 0 8px;
  background: linear-gradient(180deg, #8f9096, #6a6b72);
}

.mbp-base {
  position: relative;
  height: 14px;
  margin: 0 22px;
  background: linear-gradient(180deg, #d8d9de, #b4b5bc);
  border: 1px solid #9c9da4;
  border-top: none;
  border-radius: 0 0 12px 12px;
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.08);
}

.mbp-base::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 3px;
  width: 64px;
  height: 4px;
  margin-left: -32px;
  border-radius: 4px;
  background: #8a8b92;
}

.mbp-screen.is-collapsed .pill-only {
  position: absolute;
  top: 14px;
  left: 50%;
  z-index: 4;
  margin: 0;
  transform: translateX(-50%);
}

.mbp-screen .door {
  aspect-ratio: auto;
  min-height: 64px;
  padding: 8px 0;
}

.hm {
  position: relative;
  z-index: 2;
  width: min(520px, 92%);
  margin-top: 0;
  padding: 16px;
  border-radius: 20px;
  color: #f5f5f7;
  background: linear-gradient(180deg, #1c1c1f 0%, #121214 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.hm-status {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: center;
}

.hm-mark {
  width: 52px;
  height: 52px;
  border-radius: 14px;
}

.hm-status h4 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.hm-status p {
  margin: 2px 0 0;
  font-size: 13px;
  line-height: 1.35;
  color: #a1a1a6;
}

.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ready);
  box-shadow: 0 0 8px rgba(52, 211, 153, 0.7);
  margin-right: 6px;
  vertical-align: 1px;
}

.composer {
  display: flex;
  align-items: center;
  margin-top: 14px;
  padding: 8px 8px 8px 16px;
  border-radius: 980px;
  background: rgba(20, 20, 28, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #86868b;
  font-size: 15px;
}

.send {
  margin-left: auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #2a2d3a;
  display: grid;
  place-items: center;
  color: #a1a1a6;
  font-size: 13px;
}

.doors-label {
  margin: 16px 0 8px;
  font-size: 12px;
  color: #86868b;
}

.doors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.door {
  aspect-ratio: 1.15;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 8px;
  font-size: 12px;
  color: #a1a1a6;
}

.door svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: rgba(245, 245, 247, 0.78);
  stroke-width: 1.4;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.pill-only {
  width: 210px;
  margin: 28px auto 8px;
  padding: 8px 12px 8px 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 980px;
  background: #0c0e16;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  font-size: 12px;
  color: #f5f5f7;
}

.pill-only img { width: 22px; height: 22px; border-radius: 6px; }

.apps {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 8px;
}

.app-tile {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  padding: 12px 14px;
  min-height: 72px;
}

.app-tile span {
  display: block;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #86868b;
  margin-bottom: 6px;
}

.app-tile strong {
  font-size: 14px;
  font-weight: 560;
  letter-spacing: -0.01em;
  color: #f5f5f7;
}

.mini-approve {
  margin-top: 4px;
}

.mini-approve .q {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.mini-approve .d {
  margin-top: 6px;
  font-size: 13px;
  color: var(--fg-2);
  line-height: 1.4;
}

.choice {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.choice span {
  font-size: 13px;
  padding: 7px 12px;
  border-radius: 980px;
  border: 1px solid var(--hairline-2);
  color: var(--fg-2);
}

.choice span.go {
  background: var(--ink);
  color: var(--porcelain);
  border-color: transparent;
  font-weight: 600;
}

.hm .choice span {
  color: #f5f5f7;
  border-color: rgba(255, 255, 255, 0.18);
}

.hm .choice span.go {
  background: #f5f5f7;
  color: #1d1d1f;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--hairline);
  background: #1d1d1f;
  color: #f5f5f7;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 14px;
}

.faces {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 12px;
  margin-top: 48px;
}

.faces img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 28%;
  background: #f4efe6;
}

.marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee-track {
  display: flex;
  gap: 12px;
  width: max-content;
  padding: 8px 0;
  animation: marquee 60s linear infinite;
}

.marquee.reverse .marquee-track { animation-direction: reverse; }
.marquee:hover .marquee-track { animation-play-state: paused; }

.word {
  flex: none;
  padding: 10px 16px;
  border-radius: 980px;
  border: 1px solid var(--hairline);
  color: var(--fg-2);
  font-size: 14px;
  letter-spacing: -0.01em;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
  counter-reset: step;
}

.step { counter-increment: step; }

.step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.step h3 { font-size: 22px; margin-bottom: 10px; }
.step p { color: var(--fg-2); font-size: 16px; margin: 0; }
.step .code { margin-top: 12px; }

.footer {
  border-top: 1px solid var(--hairline);
  padding: 64px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
}

.wordmark {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 32px;
  letter-spacing: 0.12em;
  color: var(--fg-2);
  margin: 0;
}

.footer h4 {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-3);
}

.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { margin: 8px 0; }
.footer a { color: var(--fg-2); text-decoration: none; font-size: 14px; }
.footer a:hover { color: var(--fg); }

.legal {
  margin-top: 48px;
  color: var(--fg-3);
  font-size: 12px;
  line-height: 1.5;
}

.diagram {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 48px;
}

.diagram article {
  border-top: 1px solid rgba(29, 29, 31, 0.15);
  padding-top: 16px;
}

.diagram em {
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}

.caption {
  margin-top: 28px;
  font-size: 13px;
  color: var(--fg-3);
  line-height: 1.4;
}

@media (max-width: 900px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav-links, .nav-cta { display: none; }
  .menu-btn { display: inline-flex; }
  .nav.open .nav-sheet {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: rgba(245, 245, 247, 0.96);
    backdrop-filter: blur(24px);
    padding: 32px 24px;
  }
  .nav-sheet a { font-size: 28px; letter-spacing: -0.03em; color: var(--fg); }
  .faces { grid-template-columns: repeat(5, 1fr); }
  .steps, .diagram, .footer-grid, .doors { grid-template-columns: 1fr 1fr; }
  .apps { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .steps, .diagram, .footer-grid, .doors { grid-template-columns: 1fr; }
  .faces { grid-template-columns: repeat(4, 1fr); gap: 8px; }
}