:root {
  color-scheme: light;
  --bg: #eff0e8;
  --bg-soft: #f7f7f2;
  --ink: #10120f;
  --ink-soft: #495046;
  --line: rgba(16, 18, 15, 0.12);
  --line-strong: rgba(16, 18, 15, 0.24);
  --panel: rgba(255, 255, 252, 0.8);
  --panel-strong: rgba(255, 255, 252, 0.92);
  --accent: #b8d44a;
  --accent-deep: #7f980f;
  --accent-ink: #10120f;
  --shadow: 0 24px 60px rgba(16, 18, 15, 0.08);
  --radius-lg: 2rem;
  --radius-md: 1.25rem;
  --radius-sm: 1rem;
  --max-width: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  font-family: "Newsreader", Georgia, serif;
  background:
    radial-gradient(circle at 15% 10%, rgba(184, 212, 74, 0.24), transparent 24%),
    radial-gradient(circle at 82% 18%, rgba(124, 145, 16, 0.08), transparent 18%),
    linear-gradient(180deg, #fafaf4 0%, #eff0e8 40%, #ecece2 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background-image:
    linear-gradient(rgba(16, 18, 15, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 18, 15, 0.03) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 90%);
}

body::after {
  background:
    radial-gradient(circle at 20% 30%, rgba(16, 18, 15, 0.07) 0 0.85px, transparent 1px),
    radial-gradient(circle at 70% 20%, rgba(16, 18, 15, 0.08) 0 0.95px, transparent 1px),
    radial-gradient(circle at 80% 78%, rgba(16, 18, 15, 0.06) 0 0.85px, transparent 1px);
  background-size: 180px 180px;
  opacity: 0.45;
}

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

a {
  color: inherit;
}

button,
a {
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent-deep);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  top: -3rem;
  left: 1rem;
  z-index: 50;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.site-shell {
  width: min(var(--max-width), calc(100% - 1.5rem));
  margin: 0 auto;
  padding-bottom: 2rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding-top: 1rem;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 252, 0.76);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 30px rgba(16, 18, 15, 0.05);
}

.site-header.is-scrolled .header-inner {
  border-color: var(--line-strong);
  box-shadow: 0 16px 40px rgba(16, 18, 15, 0.08);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  min-width: 0;
  text-decoration: none;
}

.brand-lockup img {
  width: 3rem;
  height: 3rem;
  flex: none;
}

.brand-title,
.brand-subtitle,
.eyebrow,
.proof-label,
.proof-value,
.reason-index,
.step-label,
.task-tags,
.site-nav,
.button,
.instrument-terminal,
.anatomy-list span,
.anatomy-list strong,
.footer-links,
.nav-toggle {
  font-family: "Azeret Mono", "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
}

.brand-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.brand-subtitle {
  margin: 0.25rem 0 0;
  color: var(--ink-soft);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav a,
.nav-toggle {
  padding: 0.72rem 0.95rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.77rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.nav-toggle:hover,
.nav-toggle:focus-visible {
  color: var(--ink);
  background: rgba(16, 18, 15, 0.06);
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  cursor: pointer;
}

main {
  display: flex;
  flex-direction: column;
  gap: 4.5rem;
  padding-top: 1.8rem;
}

.panel,
.info-card,
.reason-card,
.step-card,
.task-card,
.faq-list details,
.instrument-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 1.2rem;
  padding: 1.2rem;
  border-radius: 2.4rem;
}

.hero-copy {
  position: relative;
  padding: 1.5rem 1.25rem 1.2rem;
}

.hero-copy::after {
  content: "";
  position: absolute;
  right: 1rem;
  top: 1rem;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 212, 74, 0.32), transparent 72%);
  filter: blur(8px);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent-deep);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
summary {
  margin: 0;
  font-weight: 500;
  letter-spacing: -0.05em;
}

h1 {
  max-width: 12ch;
  font-size: clamp(3.2rem, 6vw, 6rem);
  line-height: 0.92;
}

h2 {
  max-width: 18ch;
  font-size: clamp(2.1rem, 4vw, 3.3rem);
  line-height: 0.95;
}

h3 {
  font-size: 1.45rem;
  line-height: 1.02;
}

p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
  line-height: 1.6;
}

.hero-dek {
  max-width: 34rem;
  margin-top: 1.4rem;
  font-size: 1.16rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  padding: 0.85rem 1.3rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 12px 24px rgba(127, 152, 15, 0.18);
}

.button-primary:hover {
  background: #c4de5f;
}

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 252, 0.7);
  color: var(--ink);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 2rem;
}

.proof-card {
  padding: 1rem 1rem 1.1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 252, 0.72);
}

.proof-label,
.proof-value {
  margin: 0;
}

.proof-label {
  color: var(--ink-soft);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.proof-value {
  margin-top: 0.7rem;
  color: var(--ink);
  font-size: 0.88rem;
  line-height: 1.5;
}

.hero-instrument {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.instrument-terminal {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  background: #11140f;
  color: #dce9a7;
  border: 1px solid rgba(184, 212, 74, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.instrument-terminal p {
  margin: 0;
  color: inherit;
  font-size: 0.76rem;
  line-height: 1.8;
}

.instrument-card {
  padding: 1.3rem;
  border-radius: var(--radius-lg);
}

.anatomy-list {
  display: grid;
  gap: 0.8rem;
  padding: 0;
  margin: 1.5rem 0 0;
  list-style: none;
}

.anatomy-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 0.9rem;
  align-items: start;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}

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

.anatomy-list span {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  background: rgba(184, 212, 74, 0.22);
  color: var(--ink);
  font-size: 0.74rem;
}

.anatomy-list strong {
  color: var(--ink);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.anatomy-list em {
  color: var(--ink-soft);
  font-style: normal;
  font-size: 1rem;
  line-height: 1.45;
}

.section {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.section-heading {
  display: grid;
  gap: 0.9rem;
  padding-inline: 0.2rem;
}

.overview-grid,
.reason-grid,
.steps-grid,
.task-grid {
  display: grid;
  gap: 1rem;
}

.overview-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.reason-grid,
.steps-grid,
.task-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.reason-card,
.step-card,
.task-card {
  padding: 1.35rem;
  border-radius: var(--radius-lg);
}

.info-card p,
.reason-card p,
.step-card p,
.task-card p {
  margin-top: 0.95rem;
}

.reason-index,
.step-label {
  color: var(--accent-deep);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.task-tags {
  color: var(--accent-deep);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.faq-section {
  padding-bottom: 0.5rem;
}

.faq-list {
  display: grid;
  gap: 0.9rem;
}

.faq-list details {
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  list-style: none;
  font-size: 1.35rem;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  flex: none;
  color: var(--accent-deep);
  font-family: "Azeret Mono", "SFMono-Regular", Menlo, Monaco, Consolas, monospace;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin-top: 0.9rem;
  max-width: 62ch;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: end;
  padding: 1.4rem;
  border-radius: var(--radius-lg);
}

.footer-brand {
  display: grid;
  gap: 0.85rem;
}

.footer-brand img {
  width: min(26rem, 100%);
  height: auto;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.65rem;
}

.footer-links a {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-links a:hover {
  background: rgba(16, 18, 15, 0.05);
}

@media (max-width: 1040px) {
  .hero,
  .overview-grid,
  .reason-grid,
  .steps-grid,
  .task-grid,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-right: 0.5rem;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 780px) {
  .site-shell {
    width: min(var(--max-width), calc(100% - 1rem));
  }

  .site-header {
    padding-top: 0.7rem;
  }

  .header-inner {
    align-items: flex-start;
    flex-wrap: wrap;
    border-radius: 1.6rem;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.3rem;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    text-align: center;
  }

  main {
    gap: 3.5rem;
    padding-top: 1.2rem;
  }

  .hero {
    padding: 0.9rem;
    border-radius: 1.8rem;
  }

  .hero-copy,
  .instrument-card,
  .info-card,
  .reason-card,
  .step-card,
  .task-card,
  .faq-list details,
  .site-footer {
    padding: 1.15rem;
  }

  h1 {
    max-width: 13ch;
    font-size: clamp(2.4rem, 11vw, 4rem);
  }

  h2 {
    max-width: 14ch;
    font-size: clamp(1.8rem, 8vw, 2.7rem);
  }

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

  .faq-list summary {
    font-size: 1.12rem;
  }
}