:root {
  --bg: #071511;
  --surface: #0d211a;
  --surface-2: #123127;
  --line: rgba(255, 255, 255, 0.12);
  --text: #f4f8f5;
  --muted: #b9c8c0;
  --green: #72e58e;
  --green-strong: #45c96a;
  --yellow: #f4e35b;
  --ink: #071511;
  --radius: 20px;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.28);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 85% 8%, rgba(69, 201, 106, 0.12), transparent 28rem),
    var(--bg);
  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;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--green);
}

a:hover {
  color: #a1f6b5;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  transform: translateY(-150%);
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--yellow);
  color: var(--ink);
}

.skip-link:focus {
  transform: none;
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 21, 17, 0.9);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  min-height: 78px;
  align-items: center;
  gap: 24px;
}

.brand {
  flex: 0 0 auto;
}

.brand img {
  width: 224px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-left: auto;
}

.main-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--green-strong);
  color: var(--ink) !important;
  font-weight: 800;
  line-height: 1.15;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(69, 201, 106, 0.24);
  transition: transform 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
  background: #8df0a5;
  box-shadow: 0 14px 34px rgba(69, 201, 106, 0.3);
}

.button-secondary {
  border-color: var(--line);
  background: transparent;
  color: var(--text) !important;
  box-shadow: none;
}

.button-secondary:hover {
  background: rgba(255, 255, 255, 0.07);
}

.hero {
  padding: 58px 0 34px;
}

.hero-grid {
  display: grid;
  align-items: center;
  gap: 44px;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  color: var(--green);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  content: "";
  box-shadow: 0 0 0 6px rgba(114, 229, 142, 0.12);
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.12;
  text-wrap: balance;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(40px, 5.3vw, 72px);
  letter-spacing: -0.045em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(28px, 3.4vw, 44px);
  letter-spacing: -0.035em;
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(20px, 2vw, 25px);
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 18px;
}

.hero-lead {
  max-width: 690px;
  color: #d7e3dc;
  font-size: clamp(18px, 2vw, 22px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #10251e;
  box-shadow: var(--shadow);
}

.hero-media img {
  width: 100%;
  min-height: 360px;
  object-fit: cover;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7, 21, 17, 0.78));
  content: "";
  pointer-events: none;
}

.hero-badge {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 1;
  max-width: 260px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: rgba(7, 21, 17, 0.86);
  color: var(--text);
  font-size: 13px;
  font-weight: 750;
  backdrop-filter: blur(8px);
}

.quick-facts {
  padding: 18px 0 28px;
}

.fact-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, 1fr);
}

.fact {
  min-height: 112px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
}

.fact strong,
.fact span {
  display: block;
}

.fact strong {
  margin-bottom: 6px;
  color: var(--green);
  font-size: 15px;
}

.fact span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

.content-layout {
  display: grid;
  align-items: start;
  gap: 54px;
  grid-template-columns: 250px minmax(0, 1fr);
  padding: 54px 0 80px;
}

.content-layout > article {
  min-width: 0;
}

.toc {
  position: sticky;
  top: 102px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(13, 33, 26, 0.88);
}

.toc strong {
  display: block;
  margin-bottom: 12px;
}

.toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc li + li {
  margin-top: 8px;
}

.toc a {
  display: block;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
  text-decoration: none;
}

.toc a:hover {
  color: var(--green);
}

.article-section {
  padding: 42px 0;
  border-top: 1px solid var(--line);
}

.article-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.article-section > p,
.article-section > ul,
.article-section > ol {
  color: #d0ddd6;
}

.callout {
  margin: 26px 0;
  padding: 22px 24px;
  border: 1px solid rgba(114, 229, 142, 0.34);
  border-left: 4px solid var(--green);
  border-radius: 14px;
  background: rgba(114, 229, 142, 0.075);
}

.callout p:last-child {
  margin-bottom: 0;
}

.notice {
  border-color: rgba(244, 227, 91, 0.34);
  border-left-color: var(--yellow);
  background: rgba(244, 227, 91, 0.07);
}

.card-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 24px 0;
}

.card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.card p:last-child {
  margin-bottom: 0;
}

.card-kicker {
  margin-bottom: 6px;
  color: var(--green);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.clean-list,
.steps {
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.clean-list li,
.steps li {
  position: relative;
  margin-bottom: 12px;
  padding-left: 34px;
}

.clean-list li::before {
  position: absolute;
  top: 0.58em;
  left: 5px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.steps {
  counter-reset: step;
}

.steps li::before {
  position: absolute;
  top: 1px;
  left: 0;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid var(--green);
  border-radius: 50%;
  color: var(--green);
  content: counter(step);
  counter-increment: step;
  font-size: 12px;
  font-weight: 800;
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 26px 0;
  border: 1px solid var(--line);
  border-radius: 16px;
}

table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: var(--surface);
}

th,
td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-2);
  color: var(--text);
  font-size: 14px;
}

td {
  color: #d0ddd6;
  font-size: 15px;
}

tr:last-child td {
  border-bottom: 0;
}

.section-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 28px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(69, 201, 106, 0.16), rgba(255, 255, 255, 0.035));
}

.section-cta p {
  max-width: 550px;
  margin: 0;
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
}

.faq-list summary {
  position: relative;
  padding: 18px 50px 18px 20px;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 13px;
  right: 18px;
  color: var(--green);
  content: "+";
  font-size: 28px;
  font-weight: 400;
}

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

.faq-list details p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

.editorial-box {
  display: grid;
  gap: 16px;
  grid-template-columns: auto 1fr;
  align-items: start;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface);
}

.editorial-mark {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 14px;
  background: var(--green);
  color: var(--ink);
  font-weight: 900;
}

.editorial-box p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.site-footer {
  padding: 44px 0 96px;
  border-top: 1px solid var(--line);
  background: #06110e;
}

.footer-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr auto;
  align-items: center;
}

.footer-grid p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.age-badge {
  display: grid;
  width: 66px;
  height: 66px;
  place-items: center;
  border: 2px solid var(--yellow);
  border-radius: 50%;
  color: var(--yellow);
  font-size: 20px;
  font-weight: 900;
}

.mobile-sticky {
  display: none;
}

@media (max-width: 980px) {
  .main-nav {
    display: none;
  }

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

  .hero-copy {
    max-width: 800px;
  }

  .hero-media img {
    min-height: 300px;
  }

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

  .content-layout {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }

  .toc ol {
    columns: 2;
    column-gap: 28px;
  }
}

@media (max-width: 680px) {
  html {
    scroll-padding-top: 76px;
  }

  body {
    font-size: 16px;
  }

  .container {
    width: min(100% - 28px, 1160px);
  }

  .header-inner {
    min-height: 68px;
    gap: 10px;
  }

  .brand img {
    width: 152px;
  }

  .header-actions .button-secondary {
    display: none;
  }

  .header-actions .button {
    min-height: 40px;
    padding: 9px 13px;
    font-size: 13px;
  }

  .hero {
    padding-top: 38px;
  }

  .hero-grid {
    gap: 28px;
  }

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

  .hero-media {
    border-radius: 20px;
  }

  .hero-media img {
    min-height: 210px;
  }

  .hero-badge {
    right: 12px;
    bottom: 12px;
    left: 12px;
    max-width: none;
  }

  .fact-grid,
  .card-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .toc ol {
    columns: 1;
  }

  .content-layout {
    gap: 34px;
    padding-top: 34px;
  }

  .article-section {
    padding: 34px 0;
  }

  .section-cta {
    align-items: stretch;
  }

  .section-cta .button {
    width: 100%;
  }

  .editorial-box {
    grid-template-columns: 1fr;
  }

  .site-footer {
    padding-bottom: 100px;
  }

  .mobile-sticky {
    position: fixed;
    right: 12px;
    bottom: 12px;
    left: 12px;
    z-index: 60;
    display: flex;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(7, 21, 17, 0.94);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
  }

  .mobile-sticky .button {
    flex: 1;
    min-height: 44px;
    padding: 10px 12px;
    font-size: 13px;
  }
}

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

  .button {
    transition: none;
  }
}