: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;
}

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--color-background);
  color: var(--color-font);
  font-family: var(--font-family);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-headers);
  font-family: var(--font-family);
  line-height: 1.2;
  margin: 0 0 0.5em;
}

p {
  margin: 0 0 1em;
}

a {
  color: var(--color-link);
  text-decoration: none;
}

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

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

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

.btn {
  display: inline-block;
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.75em 1.5em;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background-color: var(--color-button);
  color: var(--color-button-text);
  border-color: var(--color-button);
}

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

.btn-secondary {
  background-color: var(--color-secondary-button);
  color: var(--color-secondary-button-text);
  border-color: var(--color-border);
}

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

/* Header */

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo-link {
  display: inline-flex;
  align-items: center;
}

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

.header-cta {
  flex-shrink: 0;
}

/* Footer */

.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: 2rem;
}

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

.footer-logo {
  height: 36px;
  width: auto;
}

.legal-text {
  color: var(--color-font);
  font-size: 0.85rem;
  opacity: 0.8;
  margin: 0;
}

/* Responsive */

@media (min-width: 600px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

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

/* Page: article layout */

.page-main {
  display: block;
  padding: 24px 0 48px;
}

.article {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 16px;
}

.article h2 {
  margin-top: 2em;
  font-size: 1.5rem;
}

.article-section {
  margin-bottom: 1.5em;
}

.toc-box {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background-color: var(--color-surface);
  padding: 16px 20px;
  margin: 1.5em 0;
}

.toc-title {
  margin: 0 0 0.5em;
  font-size: 1.1rem;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.toc-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.toc-icon {
  color: var(--color-accent);
  flex-shrink: 0;
}

.notice-box {
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-surface);
  border-radius: 6px;
  padding: 12px 16px;
  margin: 1.5em 0;
}

.notice-box p {
  margin: 0;
}

.promo-banner-link {
  display: block;
  margin: 1.5em 0;
  border-radius: 8px;
  overflow: hidden;
}

.promo-banner-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.table-wrap {
  overflow-x: auto;
  margin: 1em 0;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  vertical-align: top;
}

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

.step-list {
  list-style: none;
  margin: 0 0 1em;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.step-num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-button);
  color: var(--color-button-text);
  font-weight: 700;
  font-size: 0.9rem;
}

.step-text {
  padding-top: 3px;
}

.bullet-list {
  margin: 0 0 1em;
  padding-left: 1.25em;
}

.bullet-list li {
  margin-bottom: 0.6em;
}

.cta-center {
  text-align: center;
  margin: 1.5em 0;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background-color: var(--color-surface);
  padding: 12px 16px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-headers);
}

.faq-item p {
  margin: 0.75em 0 0;
}

@media (min-width: 700px) {
  .article {
    padding: 0 24px;
  }

  .article h2 {
    font-size: 1.75rem;
  }
}