:root {
  --accent-color: #0CC0DF;
  --text-color: #111827;
  --muted: #374151;
  --line: #e5e7eb;
  --footer-bg: #000000;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-color);
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: #1f2937;
  text-decoration: none;
}

a:hover {
  color: #111111;
}

.main {
  padding: 2.2rem 1.2rem 4rem;
}

.article {
  max-width: 980px;
  margin: 0 auto;
  padding: 0;
}

.article h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.updated {
  color: #6b7280;
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.article h1, .article h2, .article h3 {
  font-family: "Montserrat", sans-serif;
  color: var(--text-color);
  letter-spacing: -0.01em;
}

.article h2 {
  margin-top: 2.2rem;
  margin-bottom: 0.8rem;
  font-size: clamp(1.2rem, 3vw, 1.5rem);
}

.article h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.6rem;
  font-size: 1.15rem;
}

.article p {
  color: var(--muted);
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
  line-height: 1.75;
}

.article ul {
  margin: 0.5rem 0 1.5rem 1.4rem;
}

.article li {
  color: var(--muted);
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
  line-height: 1.75;
}

.article a {
  color: var(--accent-color);
  font-weight: 500;
  transition: all 0.2s ease;
}

.article a:hover {
  color: #078cba;
  text-decoration: underline;
}

.faq-item {
  margin-bottom: 1rem;
}

.faq-item__q {
  color: #111111;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.footer {
  background: var(--footer-bg);
  padding: 4rem 1.2rem 2.2rem;
  margin-top: 4rem;
}

.footer__inner {
  max-width: 980px;
  margin: 0 auto;
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.2fr) repeat(2, minmax(170px, 1fr));
  gap: 2rem;
}

.footer__brand {
  font-size: 1.04rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: #ffffff;
}

.footer__brand .dot {
  color: var(--accent-color);
}

.footer__copy {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
}

.footer__title {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 0.8rem;
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: 0.55rem;
}

.footer__links a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.95rem;
}

.footer__links a:hover {
  color: #ffffff;
}

.footer__bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

@media (max-width: 820px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer__about {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__about {
    grid-column: auto;
  }
}