/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, div, header, footer, nav, ul, li, a, img, p, span, button, h1, h2, h3, h4, h5, h6 {
  margin: 0;
  padding: 0;
}
html { -webkit-text-size-adjust: 100%; }
img { max-width: 100%; display: block; }
a { text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* ---------- Variables ---------- */
:root {
  --color-background: #2d3748;
  --color-surface: #1a202c;
  --color-button: #b2ff00;
  --color-button-hover: #b2ff00;
  --color-button-text: #1a202c;
  --color-secondary-button: #020203;
  --color-secondary-button-hover: #020203;
  --color-secondary-button-text: #ffffff;
  --color-font: #ffffff;
  --color-headers: #ffffff;
  --color-link: #b2ff00;
  --color-link-hover: #ffffff;
  --color-border: #d4af7a26;
  --color-accent: #b2ff00;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

/* ---------- Base typography ---------- */
body {
  background-color: var(--color-background);
  color: var(--color-font);
  font-family: var(--font-family);
  line-height: 1.5;
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-headers);
  font-family: var(--font-family);
  line-height: 1.25;
}

a {
  color: var(--color-link);
  transition: color 0.15s ease-in-out;
}
a:hover,
a:focus {
  color: var(--color-link-hover);
}

/* ---------- Layout ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 600;
  font-family: var(--font-family);
  background-color: var(--color-button);
  color: var(--color-button-text);
  border: 1px solid transparent;
  transition: background-color 0.15s ease-in-out, opacity 0.15s ease-in-out;
}
.btn:hover,
.btn:focus {
  background-color: var(--color-button-hover);
  color: var(--color-button-text);
  opacity: 0.9;
}

.btn--secondary {
  background-color: var(--color-secondary-button);
  color: var(--color-secondary-button-text);
}
.btn--secondary:hover,
.btn--secondary:focus {
  background-color: var(--color-secondary-button-hover);
  color: var(--color-secondary-button-text);
}

.btn--cta {
  background-color: var(--color-accent);
  color: var(--color-button-text);
}

/* ---------- Site Header ---------- */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
}

.site-header__logo-img {
  height: 40px;
  width: auto;
}

.site-header__cta {
  flex-shrink: 0;
}

/* ---------- Site Footer ---------- */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding-top: 32px;
  padding-bottom: 32px;
  text-align: center;
}

.site-footer__logo-img {
  height: 32px;
  width: auto;
  margin: 0 auto;
}

.site-footer__copy {
  color: var(--color-font);
  font-size: 14px;
  opacity: 0.8;
}

/* ---------- Responsive ---------- */
@media (min-width: 600px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 900px) {
  .container {
    padding: 0 32px;
  }
}

/* ---------- Page: review article ---------- */
.page {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.page-title h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.page-title > p {
  margin-bottom: 20px;
  opacity: 0.92;
}

/* Table of contents checklist box */
.toc {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background-color: var(--color-surface);
  padding: 16px 20px;
  margin-bottom: 8px;
}

.toc__list {
  display: grid;
  gap: 8px;
}

.toc__list li {
  position: relative;
  padding-left: 22px;
}

.toc__list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.toc__list a {
  color: var(--color-font);
}

.toc__list a:hover,
.toc__list a:focus {
  color: var(--color-link);
}

/* Content sections */
.content-block {
  margin-top: 40px;
}

.content-block h2 {
  font-size: 22px;
  margin-bottom: 14px;
}

.content-block p {
  margin-bottom: 14px;
}

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

.content-image,
.promo-banner img {
  border-radius: 8px;
  margin: 16px 0;
}

.promo-banner {
  display: block;
}

/* Lists */
.step-list,
.bullet-list {
  margin: 0 0 14px;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.step-list {
  counter-reset: step;
  list-style: none;
}

.step-list li {
  position: relative;
  padding-left: 36px;
}

.step-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-button-text);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bullet-list li {
  position: relative;
  padding-left: 20px;
}

.bullet-list li::before {
  content: "\2022";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  margin: 16px 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.data-table th {
  background-color: var(--color-surface);
  color: var(--color-headers);
  font-weight: 700;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* CTA rows */
.cta-row {
  margin-top: 20px;
  display: flex;
  justify-content: center;
}

/* FAQ accordion */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.accordion__item {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 14px 18px;
  background-color: var(--color-surface);
}

.accordion__item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-headers);
  list-style: none;
}

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

.accordion__item summary::after {
  content: "+";
  float: right;
  color: var(--color-accent);
  font-weight: 700;
}

.accordion__item[open] summary::after {
  content: "\2212";
}

.accordion__item p {
  margin-top: 10px;
  margin-bottom: 0;
}

@media (min-width: 600px) {
  .page {
    padding: 48px 32px 80px;
  }
}