:root {
  --bg: #edf4fb;
  --bg-soft: #f7fbff;
  --surface: rgba(255, 255, 255, 0.76);
  --surface-strong: rgba(255, 255, 255, 0.92);
  --border: rgba(175, 194, 220, 0.58);
  --border-strong: rgba(135, 161, 198, 0.78);
  --text: #18253b;
  --muted: #5a6c85;
  --accent: #2f80ed;
  --accent-deep: #214a9c;
  --accent-dark: #17336e;
  --shadow: 0 24px 60px rgba(41, 67, 108, 0.12);
}

/* Apple-inspired tokens (docs/design.md) */
:root {
  --apple-white: #FFFFFF;
  --apple-soft: #FBFBFD;
  --apple-gray-050: #F5F5F7;
  --apple-ink: #1D1D1F;
  --apple-muted: #86868B;
  --apple-blue: #0071E3;
  --apple-blue-deep: #0066CC;
  --apple-border: #D2D2D7;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  color: var(--apple-ink);
  font-family: "SF Pro Text", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, system-ui, sans-serif;
  font-weight: 400;
  font-size: 17px; /* Body per design.md */
  line-height: 1.47;
  background: var(--apple-soft);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

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

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

.landing-shell {
  position: relative;
  overflow-x: clip;
  overflow-y: visible;
  min-height: 100vh;
  padding: 22px;
}

.ambient {
  position: absolute;
  border-radius: 999px;
  filter: blur(48px);
  pointer-events: none;
  opacity: 0.75;
}

.ambient-a {
  width: 220px;
  height: 220px;
  top: -24px;
  left: -56px;
  background: rgba(162, 214, 255, 0.65);
}

.ambient-b {
  width: 280px;
  height: 280px;
  top: 88px;
  right: -90px;
  background: rgba(177, 160, 255, 0.38);
}

.ambient-c {
  width: 280px;
  height: 280px;
  bottom: -90px;
  left: 12%;
  background: rgba(135, 220, 255, 0.3);
}

.canvas {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  border-radius: 28px; /* Apple card radius */
  background: var(--apple-white);
  border: 1px solid var(--apple-border);
  box-shadow: 0 6px 20px rgba(0,0,0,0.06);
}

.canvas::before {
  /* intentionally empty to remove large decorative watermark */
  content: "";
}

.canvas > * {
  position: relative;
  z-index: 1;
}

.topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px 20px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(210, 210, 215, 0.92);
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.08);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  position: sticky;
  top: 18px; /* breathing room per Apple spacing */
  z-index: 1200;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 10px;
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1.0625rem; /* ~17px */
  letter-spacing: 0.02em;
}

.brand-copy small {
  color: var(--muted);
  font-size: 0.72rem;
}

.nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
}

.nav a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--apple-muted);
  font-size: 15px;
  font-weight: 600;
}

.nav a:hover,
.nav a:focus-visible {
  background: rgba(47, 128, 237, 0.09);
  color: var(--accent-dark);
  outline: none;
}

  /* stray global styles were removed and moved into .topbar */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: box-shadow 160ms ease, transform 120ms ease;
}

.button:hover,
.button:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.button-primary {
  background: var(--apple-blue);
  color: var(--apple-white);
  border: none;
  min-height: 48px;
  padding: 0 22px;
  font-size: 17px;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(0, 113, 227, 0.12);
  border-radius: 999px;
}

.button-lg {
  min-height: 50px;
  padding: 0 26px;
  font-size: 0.98rem;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--apple-blue-deep);
  box-shadow: 0 14px 36px rgba(0, 102, 204, 0.12);
}

.button-secondary {
  background: transparent;
  color: var(--apple-blue);
  border: 1px solid var(--apple-blue);
  min-height: 44px;
  padding: 0 18px;
}

/* Larger CTA variant used in hero */
.button-lg {
  min-height: 56px;
  padding: 0 28px;
  font-size: 18px;
  font-weight: 600;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 22px;
  align-items: center;
  padding: 28px 10px 12px;
}

.hero-copy {
  padding: 14px 10px 10px;
}

.eyebrow,
.section-heading p,
.info-label {
  margin: 0 0 10px;
  color: #4865a0;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.74rem;
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  /* restrained display scale aligned with design.md */
  font-size: clamp(2.6rem, 5.2vw, 4.2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.hero h1 span {
  display: inline-block;
  color: var(--apple-blue-deep);
}

.hero-lead {
  max-width: 60ch;
  margin: 18px 0 0;
  color: var(--apple-muted);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(166, 188, 220, 0.72);
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 600;
}

.hero-visual {
  position: relative;
  min-height: 460px;
  display: grid;
  place-items: center;
}

.hero-card {
  position: relative;
  width: min(100%, 540px);
  padding: 20px;
  border-radius: 28px;
  color: var(--accent-dark);
  background: var(--apple-white);
  border: 1px solid var(--apple-border);
  box-shadow: 0 18px 40px rgba(23, 34, 56, 0.06);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: auto 28px -26px;
  height: 30px;
  border-radius: 999px;
  background: rgba(95, 118, 152, 0.25);
  filter: blur(8px);
}

.hero-card-frame {
  overflow: hidden;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(234, 244, 255, 0.78) 0%, rgba(217, 231, 249, 0.66) 100%);
}

.hero-card-frame img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
}

.hero-chip,
.hero-stat {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.92);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 14px 22px rgba(72, 104, 150, 0.12);
  font-size: 0.84rem;
  font-weight: 600;
  text-align: center;
}

.hero-chip-left {
  left: -18px;
  top: 48%;
}

.hero-chip-right {
  right: -16px;
  top: 20%;
}

.hero-stat {
  top: -16px;
  right: 24px;
  flex-direction: column;
    /* reduce hero-card shadows and glassiness */
  align-items: flex-start;
  min-width: 98px;
  text-align: center;
}

.hero-stat strong {
  color: var(--accent);
  font-size: 1.4rem;
  line-height: 1;
  text-align: center;
}

.hero-stat span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 6px 8px 22px;
}

.summary-strip article {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border-radius: 16px;
  background: var(--apple-soft);
  border: 1px solid var(--apple-border);
  text-align: center; 
}

.summary-strip strong {
  color: var(--accent-dark);
  font-size: 1.25rem;
  font-weight: 700;
}

.summary-strip span {
  color: var(--muted);
  font-size: 0.84rem;
}

.feature-section,
.showcase-section,
.bottom-grid {
  padding: 22px 10px 4px;
  /* ensure anchor targets are visible below the sticky topbar */
  scroll-margin-top: 96px;
  content-visibility: auto;
  contain-intrinsic-size: 900px;
}

.section-heading {
  margin-bottom: 16px;
}

.section-heading h2,
.info-card h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2.2vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.section-heading-inline {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.feature-card-soft,
.showcase-card,
.info-card {
  border: 1px solid var(--apple-border);
  background: var(--apple-white);
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.06);
}

.feature-card-soft {
  padding: 18px;
  border-radius: 16px;
  min-height: 160px;
}

.feature-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: transparent;
  color: var(--apple-muted);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  /* ensure anchor links leave space for sticky header */
  scroll-margin-top: 96px;
}

.feature-card-soft h3,
.showcase-copy h3 {
  margin: 12px 0 8px;
  font-size: 1rem;
  line-height: 1.18;
}

.feature-card-soft p,
.showcase-copy p,
.info-card p {
  margin: 0;
  color: var(--apple-muted);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.showcase-card {
  overflow: hidden;
  border-radius: 24px;
}

.showcase-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  height: auto;
  object-fit: cover;
  object-position: center;
  border-bottom: 1px solid rgba(167, 190, 221, 0.48);
}

.showcase-copy {
  padding: 14px 16px 16px;
}

.bottom-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 14px;
  padding-bottom: 8px;
}

.info-card {
  padding: 18px;
  border-radius: 22px;
}

.info-card p {
  margin-top: 8px;
}

.info-card-wide {
  min-height: 100%;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  color: var(--accent-deep);
  font-weight: 700;
}

.text-link::after {
  content: "↗";
  font-size: 0.95em;
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 360px;
  }

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

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

  .info-card-wide {
    grid-column: 1 / -1;
  }
}

@media (max-width: 820px) {
  .landing-shell {
    padding: 12px;
  }

  .canvas {
    padding: 14px;
    border-radius: 22px;
  }

  .topbar {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero {
    padding-top: 20px;
  }

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

  .feature-grid,
  .showcase-grid,
  .bottom-grid {
    grid-template-columns: 1fr;
  }

  .section-heading-inline {
    align-items: start;
    flex-direction: column;
  }

  .hero-chip-left,
  .hero-chip-right,
  .hero-stat {
    position: static;
    margin-top: 10px;
  }

  .hero-card {
    padding: 16px;
  }
}

@media (max-width: 560px) {
  .hero h1 {
    font-size: clamp(2.6rem, 13vw, 3.7rem);
  }

  .summary-strip {
    grid-template-columns: 1fr;
  }
}