:root {
  --bg: #050506;
  --surface: #101014;
  --surface-2: #19191f;
  --surface-3: #24242b;
  --text: #f7f7fb;
  --text-secondary: #c7c7d1;
  --text-muted: #8d8d9a;
  --line: rgba(255, 255, 255, 0.1);
  --accent-primary: #d80400;
  --accent-primary-light: #ff322c;
  --accent-secondary: #2b2b33;
  --accent-secondary-light: #3a3a44;
  --gold: #ffb800;
  --green: #20c67a;
  --radius: 22px;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
  --max: 1160px;
  --font: Arial, Helvetica, sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, rgba(216, 4, 0, 0.25), transparent 28%),
    radial-gradient(
      circle at 85% 10%,
      rgba(255, 184, 0, 0.12),
      transparent 26%
    ),
    linear-gradient(180deg, #050506 0%, #08080b 40%, #0d0d12 100%);
  line-height: 1.65;
}
header {
  background: rgba(5, 5, 6, 0.88);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
}
.header-inner {
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.logo {
  height: 58px;
}
.logo img {
  height: 58px;
}
.header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.button-block .btn-content  {
  border: 0;
  min-height: 48px;
  border-radius: 999px;
  padding: 14px 24px;
  background: var(--accent-primary);
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
}
.button-block .btn-content :hover {
  transform: translateY(-1px);
  background: var(--accent-primary-light);
  color: var(--accent-secondary);
}

.button  {
  border: 0;
  min-height: 48px;
  border-radius: 999px;
  padding: 14px 24px;
  background: var(--accent-primary);
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
}
.button:hover {
  transform: translateY(-1px);
  background: var(--accent-primary-light);
  color: var(--accent-secondary);
}
.header-actions .button:first-child {
  background: var(--accent-secondary);
  color: var(--text);
}
.header-actions .button:first-child:hover {
  background: var(--accent-secondary-light);
  color: var(--text);
}
.section {
  width: min(var(--max), calc(100% - 36px));
  margin: 28px auto;
  padding: 30px;
  background: linear-gradient(
    180deg,
    rgba(25, 25, 31, 0.96),
    rgba(16, 16, 20, 0.96)
  );
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
h1,
h2,
h3 {
  margin: 0 0 16px;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text);
}
h1 {
  font-size: clamp(2.1rem, 5vw, 4.2rem);
  color: #fff;
}
h2 {
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}
h3 {
  font-size: 1.25rem;
  color: #fff;
}
p {
  margin: 0 0 16px;
  color: var(--text-secondary);
}
ul,
ol {
  margin: 16px 0 18px;
  padding-left: 24px;
  color: var(--text-secondary);
}
li {
  margin: 8px 0;
}
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 20px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
}
tr:first-child td {
  background: #1f1f27;
  color: #fff;
  font-weight: 800;
}
.info-table tr:first-child td {
  background: transparent;
  color: var(--text-secondary);
  font-weight: 400;
}
.info-table td:first-child {
  color: var(--text-primary);
  font-weight: 800;
  width: 32%;
}
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  color: var(--text-secondary);
  vertical-align: top;
}
tr:last-child td {
  border-bottom: 0;
}
td:last-child {
  border-right: 0;
}
.author-block {
  width: min(var(--max), calc(100% - 36px));
  margin: 28px auto;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--line);
}
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 20px 0;
}
.pros-cons > div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
}
.pros-cons h3 {
  color: var(--gold);
}
.expert-note {
  margin: 20px 0;
  padding: 20px;
  border-radius: 18px;
  background: rgba(216, 4, 0, 0.12);
  border: 1px solid rgba(216, 4, 0, 0.35);
}
.comparison-table {
  margin: 20px 0;
}
.faq-container {
  display: grid;
  gap: 12px;
}
.faq-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 56px 18px 18px;
}
.toggle {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}
.faq-question {
  margin: 0;
  padding-right: 12px;
}
.icon {
  position: absolute;
  right: 18px;
  top: 22px;
  width: 18px;
  height: 18px;
}
.icon::before,
.icon::after {
  content: "";
  position: absolute;
  background: var(--accent-primary);
  border-radius: 2px;
}
.icon::before {
  width: 18px;
  height: 2px;
  top: 8px;
}
.icon::after {
  width: 2px;
  height: 18px;
  left: 8px;
}
.faq-answer {
  display: none;
  margin-top: 12px;
}
.toggle:checked ~ .faq-answer {
  display: block;
}
.toggle:checked ~ .icon::after {
  display: none;
}
footer {
  margin-top: 56px;
  padding: 54px 0 28px;
  background: #11131a;
  border-top: 1px solid #202638;
}
.footer-inner {
  width: min(var(--max), calc(100% - 36px));
  margin: 0 auto;
  padding: 0;
}
.footer-inner:first-child {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 58px;
  align-items: start;
}
.footer-inner p {
  color: #969aaa;
  font-size: 17px;
  line-height: 1.72;
  letter-spacing: 0.01em;
}
footer h2 {
  margin: 0 0 22px;
  color: #d8dde8;
  font-size: 24px;
  line-height: 1.15;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer-note {
  margin-top: 22px;
  padding: 18px 22px;
  border: 1px solid #26334a;
  border-radius: 8px;
  background: #151a25;
}
.footer-note p {
  margin: 0;
}
.footer-age {
  display: inline-block;
  margin-right: 14px;
  padding: 3px 9px;
  border-radius: 6px;
  background: #e31b23;
  color: #fff;
  font-weight: 900;
}
.footer-brand {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid #202638;
}
.footer-brand p {
  margin-bottom: 8px;
  font-size: 14px;
  color: #7f8493;
}
.footer-brand strong {
  color: #d8dde8;
}
.footer-links {
  display: flex;
  gap: 12px;
}
@media (max-width: 760px) {
  .header-inner {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }
  .header-actions {
    width: 100%;
  }
  .header-actions .button {
    flex: 1;
  }
  .section {
    padding: 22px;
  }
  .pros-cons {
    grid-template-columns: 1fr;
  }
  table {
    display: block;
    overflow-x: auto;
  }
  .footer-inner:first-child {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-inner p {
    font-size: 15px;
  }
}