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

:root {
  --color-bg: #0a0e1a;
  --color-bg-alt: #111827;
  --color-bg-card: #1a2235;
  --color-primary: #00d4ff;
  --color-primary-dark: #0099cc;
  --color-primary-glow: rgba(0, 212, 255, 0.15);
  --color-secondary: #ff6b35;
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-border: #2d3748;
  --color-header-bg: #070b14;
  --color-footer-bg: #07090f;
  --color-banner-bg: linear-gradient(135deg, #0f1f3d 0%, #162040 50%, #0d1a35 100%);
  --color-banner-border: #00d4ff;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.2);
  --font-main: 'Segoe UI', 'Roboto', 'Arial', sans-serif;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

.site-header {
  background-color: var(--color-header-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 16px rgba(0,0,0,0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
  gap: 20px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  font-size: 28px;
  color: var(--color-primary);
  filter: drop-shadow(0 0 8px rgba(0,212,255,0.6));
}

.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.main-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
}

.nav-link {
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  background-color: var(--color-primary-glow);
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 20px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.bonus-banner {
  background: var(--color-banner-bg);
  border-top: 2px solid var(--color-banner-border);
  border-bottom: 2px solid var(--color-banner-border);
  padding: 28px 0;
  position: relative;
  overflow: hidden;
}

.bonus-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(0,212,255,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.bonus-banner--top {
  border-top: none;
}

.bonus-banner--mid {
  margin: 40px 0;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-banner-border);
}

.bonus-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.bonus-banner__text {
  flex: 1;
  min-width: 200px;
}

.bonus-badge {
  display: inline-block;
  background: rgba(0,212,255,0.1);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}

.bonus-title {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
  line-height: 1.3;
}

.bonus-title strong {
  color: var(--color-primary);
}

.bonus-sub {
  font-size: 14px;
  color: var(--color-text-muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.5px;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #000000;
  box-shadow: 0 4px 16px rgba(0,212,255,0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,212,255,0.4);
  color: #000000;
}

.btn--large {
  padding: 16px 36px;
  font-size: 16px;
}

.main-content {
  flex: 1;
  padding: 48px 0;
}

.review-article {
  max-width: 100%;
}

.page-h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.5px;
  margin-bottom: 24px;
  line-height: 1.1;
  background: linear-gradient(135deg, #ffffff 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lead {
  font-size: 18px;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  line-height: 1.8;
  border-left: 3px solid var(--color-primary);
  padding-left: 20px;
}

.review-article h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: #ffffff;
  margin-top: 48px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.3;
}

.review-article h3 {
  font-size: clamp(17px, 2.5vw, 22px);
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 28px;
  margin-bottom: 12px;
  line-height: 1.4;
}

.review-article p {
  margin-bottom: 18px;
  color: var(--color-text);
  line-height: 1.75;
}

.info-box {
  background: rgba(0,212,255,0.06);
  border: 1px solid rgba(0,212,255,0.25);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin: 24px 0;
}

.info-box p {
  margin: 0;
  font-size: 15px;
}

.checklist {
  margin: 20px 0 24px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checklist li {
  position: relative;
  padding-left: 28px;
  color: var(--color-text);
  line-height: 1.6;
}

.checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 16px;
}

.table-scroll {
  overflow-x: auto;
  margin: 28px 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.data-table {
  width: 100%;
  min-width: 500px;
  border-collapse: collapse;
  background-color: var(--color-bg-card);
  font-size: 14px;
}

.data-table thead {
  background: linear-gradient(135deg, #0d2040 0%, #112244 100%);
}

.data-table th {
  padding: 14px 16px;
  text-align: left;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: top;
}

.data-table tbody tr:hover {
  background-color: rgba(0,212,255,0.04);
}

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

.cards-section {
  margin-top: 56px;
}

.cards-section > h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 28px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.card-icon {
  font-size: 36px;
  margin-bottom: 14px;
}

.card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}

.faq-section {
  margin-top: 56px;
}

.faq-section > h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 28px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-toggle {
  display: none;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.4;
  transition: background var(--transition), color var(--transition);
  user-select: none;
}

.faq-question::after {
  content: '+';
  font-size: 22px;
  font-weight: 300;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform var(--transition);
}

.faq-toggle:checked + .faq-question {
  background: rgba(0,212,255,0.06);
  color: var(--color-primary);
}

.faq-toggle:checked + .faq-question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 22px;
}

.faq-toggle:checked ~ .faq-answer {
  max-height: 400px;
  padding: 0 22px 18px;
}

.faq-answer p {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.75;
  margin: 0;
}

.review-article .faq-section,
.review-article .faq-list {
  margin-top: 32px;
}

.review-article .faq-section > h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  color: #ffffff;
  margin-top: 48px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  border-top: none;
}

.site-footer {
  background-color: var(--color-footer-bg);
  border-top: 1px solid var(--color-border);
  padding: 40px 0 24px;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: center;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo .logo-icon {
  font-size: 24px;
  color: var(--color-primary);
}

.footer-logo .logo-text {
  font-size: 20px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.footer-nav .nav-list {
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}

.footer-nav .nav-link {
  font-size: 13px;
  color: var(--color-text-muted);
}

.footer-nav .nav-link:hover {
  color: var(--color-primary);
  background: none;
}

.footer-disclaimer {
  max-width: 700px;
}

.footer-disclaimer p {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  line-height: 1.6;
}

.footer-copy {
  font-size: 12px;
  color: #4a5568;
}

@media (max-width: 900px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-header-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 20px;
    z-index: 99;
  }

  .main-nav.open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .nav-link {
    width: 100%;
    display: block;
  }

  .nav-toggle {
    display: block;
  }

  .site-header {
    position: relative;
  }

  .bonus-banner__inner {
    flex-direction: column;
    text-align: center;
  }

  .bonus-title {
    font-size: 18px;
  }

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

@media (max-width: 600px) {
  .bonus-banner {
    padding: 20px 0;
  }

  .bonus-title {
    font-size: 16px;
  }

  .btn--large {
    padding: 14px 24px;
    font-size: 15px;
  }

  .main-content {
    padding: 32px 0;
  }

  .review-article h2 {
    margin-top: 36px;
  }

  .data-table {
    font-size: 13px;
  }

  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }

  .card {
    padding: 20px;
  }
}