:root {
  color-scheme: dark;
  --background: #0a111c;
  --background-deep: #070d16;
  --surface: #101b29;
  --surface-raised: #16222f;
  --border: #253449;
  --border-strong: #33465e;
  --text: #edf3fa;
  --text-soft: #c2cedc;
  --text-muted: #8b99aa;
  --accent: #22d3a1;
  --accent-deep: #10b981;
  --accent-ink: #04150e;
  --warning: #f1d38a;
  --content: 1180px;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 82% 6%, rgba(34, 211, 161, 0.08), transparent 25rem),
    var(--background);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

a:hover {
  color: #63e7c1;
}

a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--warning);
  outline-offset: 4px;
  border-radius: 4px;
}

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

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  transform: translateY(-180%);
  padding: 0.65rem 0.9rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  width: min(calc(100% - 2rem), var(--content));
  margin: 0 auto;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  text-decoration: none;
  line-height: 1.1;
}

.brand img {
  border-radius: 10px;
}

.brand strong {
  font-size: 1.13rem;
  letter-spacing: 0.01em;
}

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

.brand small {
  color: var(--text-soft);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

nav a {
  color: var(--text-soft);
  text-decoration: none;
  font-size: 0.92rem;
}

nav a:hover {
  color: var(--text);
}

main,
footer {
  width: min(calc(100% - 2rem), var(--content));
  margin-inline: auto;
}

.hero {
  min-height: 680px;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(420px, 1.12fr);
  align-items: center;
  gap: clamp(2.5rem, 6vw, 6rem);
  padding: 5rem 0 6.5rem;
}

.eyebrow,
.section-number {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.77rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

h1 {
  max-width: 750px;
  font-size: clamp(2.6rem, 5vw, 4.4rem);
}

h2 {
  max-width: 630px;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.lede {
  max-width: 650px;
  margin: 1.7rem 0 0;
  color: var(--text-soft);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.boundary {
  max-width: 650px;
  margin: 1.25rem 0 0;
  color: var(--text-soft);
}

.boundary strong {
  color: var(--text);
}

.hero-actions,
.final-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem 1.2rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.7rem 1.05rem;
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  color: var(--text);
  font-weight: 750;
  text-decoration: none;
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.button.primary:hover {
  background: #63e7c1;
  color: var(--accent-ink);
}

.button.secondary {
  background: var(--surface);
}

.button.secondary:hover {
  border-color: var(--accent);
  color: var(--text);
}

.trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.2rem;
  margin: 1.4rem 0 0;
  padding: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  list-style: none;
}

.trust-list li::before {
  content: "✓";
  margin-right: 0.4rem;
  color: var(--accent);
  font-weight: 800;
}

.hero-shot {
  display: block;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.38);
  transform: perspective(1100px) rotateY(-2deg);
  transition: border-color 150ms ease, transform 150ms ease;
}

.hero-shot:hover {
  border-color: var(--accent);
  transform: perspective(1100px) rotateY(0);
}

.section {
  border-top: 1px solid var(--border);
  padding: clamp(4.5rem, 9vw, 8rem) 0;
}

.split,
.download,
.final-cta {
  display: grid;
  grid-template-columns: minmax(250px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(2rem, 8vw, 8rem);
}

.prose p,
.download > div > p,
.section-heading > p:not(.section-number) {
  max-width: 760px;
  color: var(--text-soft);
}

.prose p:first-child {
  margin-top: 0;
}

.plain-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plain-list li {
  padding: 1.2rem 0 1.2rem 2rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-soft);
  position: relative;
}

.plain-list li:first-child {
  padding-top: 0;
}

.plain-list li::before {
  content: "";
  position: absolute;
  top: 1.78rem;
  left: 0;
  width: 9px;
  height: 9px;
  border: 2px solid var(--accent);
  border-radius: 50%;
}

.plain-list li:first-child::before {
  top: 0.55rem;
}

.boundary-section > div:first-child {
  margin-bottom: 3rem;
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.boundary-grid p {
  margin: 0;
  padding: 1.5rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

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

.download-panel {
  padding: clamp(1.4rem, 4vw, 2.3rem);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
}

.button.wide {
  width: 100%;
}

.download-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin: 1rem 0 0;
  font-size: 0.92rem;
}

.small {
  margin: 1.6rem 0 0;
  color: var(--text-muted);
  font-size: 0.86rem;
}

.small strong {
  color: var(--warning);
}

.section-heading {
  margin-bottom: 3rem;
}

.product-shot {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.3);
}

.weekly-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem 2.5rem;
  margin-top: 2.75rem;
}

.weekly-points p {
  margin: 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}

.weekly-points strong {
  color: var(--text);
}

.steps {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.5rem 1.5rem 0 0;
}

.steps li + li {
  padding-left: 1.5rem;
  border-left: 1px solid var(--border);
}

.steps li > span {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
}

.steps strong {
  font-size: 1.1rem;
}

.steps p {
  margin: 0.5rem 0 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.faq-list {
  max-width: 880px;
}

details {
  border-top: 1px solid var(--border);
}

details:last-child {
  border-bottom: 1px solid var(--border);
}

summary {
  padding: 1.2rem 2.5rem 1.2rem 0;
  color: var(--text);
  font-weight: 720;
  cursor: pointer;
}

details p {
  max-width: 730px;
  margin: -0.4rem 0 1.4rem;
  color: var(--text-soft);
}

.final-cta {
  align-items: center;
}

.final-links {
  margin-top: 0;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.5rem 0 3.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.82rem;
}

footer p {
  max-width: 660px;
  margin: 0;
}

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

  .hero-shot {
    transition: none;
  }
}

@media (max-width: 900px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 4rem;
  }

  .hero-shot {
    max-width: 760px;
    transform: none;
  }

  .split,
  .download,
  .final-cta {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .steps li,
  .steps li + li {
    padding: 1.3rem 0;
    border-left: 0;
    border-bottom: 1px solid var(--border);
  }

  footer {
    flex-direction: column;
  }
}

@media (max-width: 650px) {
  body {
    font-size: 16px;
  }

  .site-header {
    min-height: 68px;
  }

  nav a:not(:last-child):not(.nav-primary) {
    display: none;
  }

  .brand small {
    display: none;
  }

  .hero {
    padding: 3.5rem 0 5rem;
  }

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

  .trust-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

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

  .weekly-points {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    margin-top: 2rem;
  }

  .download-links {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .section {
    padding: 4.5rem 0;
  }
}