:root {
  --bg: #090e0b;
  --surface: #111a13;
  --surface2: #18261b;
  --border: #243d28;
  --accent: #5cad72;
  --accent-light: #84c897;
  --accent-dim: #3a7a4e;
  --text: #f0faf2;
  --muted: #7a9e82;
  --red-soft: #c47070;
  --red-bg: rgba(196,112,112,0.08);
  --green-bg: rgba(92,173,114,0.08);
  --card-bg: rgba(255,255,255,0.02);
  --card-border: rgba(132,200,151,0.07);
  --badge-bg: rgba(92,173,114,0.11);
  --shadow-accent: rgba(92,173,114,0.30);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --font-body: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-w: 1120px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent);
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

h1 { font-size: clamp(1.65rem, 4vw, 2.5rem); margin-bottom: var(--space-md); }
h2 { font-size: clamp(1.3rem, 3vw, 1.85rem); margin-bottom: var(--space-sm); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.45rem); margin-bottom: var(--space-sm); }
h4 { font-size: 1rem; margin-bottom: var(--space-xs); letter-spacing: 0.04em; text-transform: uppercase; }

p { margin-bottom: var(--space-sm); }

.frame-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ===== HEADER / MASTHEAD ===== */
.masthead {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.masthead .frame-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-link img {
  height: 32px;
  width: auto;
}

.primary-nav .nav-list {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-anchor {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  padding: var(--space-xs) 0;
  transition: color 0.2s ease;
  position: relative;
}

.nav-anchor::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-anchor:hover,
.nav-anchor.active {
  color: var(--text);
}

.nav-anchor:hover::after,
.nav-anchor.active::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ===== SECTIONS ===== */
.segment-dark { background-color: var(--bg); }
.segment-light { background-color: var(--surface); }

section {
  padding: var(--space-xl) 0;
}

.page-hero {
  padding: var(--space-lg) 0 var(--space-md);
}

/* ===== BREADCRUMBS ===== */
.breadcrumb-trail ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: var(--space-md);
}

.breadcrumb-trail li:not(:last-child)::after {
  content: '›';
  margin-left: 0.35rem;
  color: var(--border);
}

.breadcrumb-trail a {
  color: var(--muted);
}

.breadcrumb-trail a:hover {
  color: var(--accent-light);
}

/* ===== HERO INTRO ===== */
.hero-intro {
  padding: var(--space-xl) 0;
}

.hero-intro h1 {
  max-width: 800px;
}

.lead-text {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--muted);
  max-width: 760px;
}

/* ===== SHOWCASE GRID ===== */
.operator-showcase h2 {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.showcase-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.listing-entry {
  display: grid;
  grid-template-columns: 48px 140px 1fr 1.4fr auto;
  align-items: center;
  gap: var(--space-md);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-md);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.listing-entry:hover {
  border-color: var(--accent-dim);
  box-shadow: 0 4px 20px rgba(92,173,114,0.06);
}

.listing-entry:nth-child(even) {
  background: rgba(17,26,19,0.5);
}

.rank-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--badge-bg);
  color: var(--accent-light);
  font-weight: 700;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.brand-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-sm);
  padding: var(--space-xs);
  min-height: 50px;
}

.brand-cell img {
  max-height: 36px;
  width: auto;
  object-fit: contain;
}

.offer-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.offer-label {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.offer-figure {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent-light);
}

.offer-note {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 0;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: var(--bg);
  font-weight: 700;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: box-shadow 0.3s ease, transform 0.2s ease;
}

.action-btn:hover {
  box-shadow: 0 8px 28px var(--shadow-accent);
  transform: translateY(-1px);
  color: var(--bg);
}

.action-btn:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 3px;
}

/* ===== METHODOLOGY ===== */
.methodology-overview p {
  max-width: 800px;
}

.text-link {
  display: inline-block;
  margin-top: var(--space-xs);
  font-weight: 600;
  color: var(--accent);
  transition: color 0.2s ease;
}

.text-link:hover {
  color: var(--accent-light);
}

/* ===== PLATFORM REVIEWS ===== */
.detailed-reviews > .frame-inner > p {
  max-width: 800px;
  margin-bottom: var(--space-lg);
}

.platform-review {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.platform-review:nth-child(even) {
  background: rgba(24,38,27,0.35);
}

.review-brand-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.review-brand-bar img {
  max-height: 38px;
  width: auto;
  background: rgba(255,255,255,0.05);
  padding: var(--space-xs);
  border-radius: var(--radius-sm);
}

.review-badge {
  display: inline-block;
  background: var(--badge-bg);
  color: var(--accent-light);
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}

.platform-review > p {
  max-width: 820px;
  margin-bottom: var(--space-md);
}

.platform-review .action-btn {
  margin-top: var(--space-sm);
}

/* ===== MERITS GRID (PROS/CONS) ===== */
.merits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin: var(--space-md) 0;
}

.merit-col {
  padding: var(--space-md);
  border-radius: var(--radius-md);
}

.merit-plus {
  background: var(--green-bg);
  border: 1px solid rgba(92,173,114,0.15);
}

.merit-minus {
  background: var(--red-bg);
  border: 1px solid rgba(196,112,112,0.12);
}

.merit-plus h4 {
  color: var(--accent);
}

.merit-minus h4 {
  color: var(--red-soft);
}

.merit-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.merit-col li {
  font-size: 0.9rem;
  line-height: 1.55;
  padding-left: 1.3rem;
  position: relative;
}

.merit-plus li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.merit-minus li::before {
  content: '✗';
  position: absolute;
  left: 0;
  color: var(--red-soft);
  font-weight: 700;
}

/* ===== LEGAL / STEPS / MOBILE ===== */
.legal-context p,
.mobile-context p {
  max-width: 800px;
}

.guide-steps .step-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.guide-steps .step-list li {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  background: var(--badge-bg);
  color: var(--accent-light);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.1rem;
}

.step-content {
  flex: 1;
}

.step-title {
  display: block;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.2rem;
  font-size: 1.02rem;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 0;
}

/* ===== COMPARISON TABLES ===== */
.comparison-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  min-width: 640px;
}

.data-table caption {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.02em;
  background: var(--surface2);
}

.data-table thead {
  background: var(--accent-dim);
}

.data-table th {
  padding: 0.75rem var(--space-sm);
  text-align: left;
  font-weight: 700;
  color: var(--text);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}

.data-table td {
  padding: 0.75rem var(--space-sm);
  border-top: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}

.data-table tbody tr:nth-child(odd) {
  background: var(--surface);
}

.data-table tbody tr:nth-child(even) {
  background: var(--surface2);
}

.data-table tbody tr:hover {
  background: rgba(92,173,114,0.05);
}

/* ===== FAQ ACCORDION ===== */
.common-queries h2 {
  margin-bottom: var(--space-lg);
}

.query-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.query-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.25s ease;
}

.query-item[open] {
  border-color: var(--accent-dim);
}

.query-item summary {
  padding: var(--space-md);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
  user-select: none;
}

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

.query-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--accent);
  font-weight: 300;
  flex-shrink: 0;
  margin-left: var(--space-sm);
  transition: transform 0.3s ease;
}

.query-item[open] summary::after {
  content: '−';
}

.query-item summary:hover {
  background: rgba(92,173,114,0.04);
}

.query-answer {
  padding: 0 var(--space-md) var(--space-md);
}

.query-answer p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== CONCLUSION ===== */
.final-assessment p {
  max-width: 800px;
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-brand img {
  height: 28px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.55;
}

.footer-nav h3,
.footer-legal h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-nav a {
  font-size: 0.88rem;
  color: var(--muted);
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--accent-light);
}

.footer-legal p {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.age-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--red-soft);
  color: var(--red-soft);
  font-weight: 800;
  font-size: 0.82rem;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--space-md);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0;
}

/* ===== SCROLL TOP ===== */
.scroll-top-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-dim);
  color: var(--text);
  font-size: 1.2rem;
  border: none;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, background 0.2s ease;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top-btn.revealed {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  background: var(--accent);
}

/* ===== PROSE BLOCK (subpages) ===== */
.prose-block h2 {
  margin-top: var(--space-lg);
}

.prose-block h2:first-child {
  margin-top: 0;
}

.prose-block ul,
.prose-block ol {
  padding-left: 1.5rem;
  margin-bottom: var(--space-sm);
}

.prose-block ul {
  list-style: disc;
}

.prose-block ol {
  list-style: decimal;
}

.prose-block li {
  margin-bottom: 0.35rem;
  font-size: 0.94rem;
  color: var(--muted);
  line-height: 1.65;
}

/* ===== AUTHOR PROFILE ===== */
.author-profile {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.author-avatar-wrap {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-avatar-wrap img {
  border-radius: var(--radius-md);
}

.author-role {
  display: inline-block;
  background: var(--badge-bg);
  color: var(--accent-light);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.author-bio h3 {
  margin-top: var(--space-md);
}

.author-bio ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: var(--space-sm);
}

.author-bio li {
  margin-bottom: 0.3rem;
  font-size: 0.92rem;
  color: var(--muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .listing-entry {
    grid-template-columns: 40px 110px 1fr auto;
  }

  .offer-note {
    display: none;
  }

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

@media (max-width: 768px) {
  .primary-nav {
    position: fixed;
    inset: 0;
    background: rgba(9,14,11,0.97);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
  }

  .primary-nav.nav-open {
    opacity: 1;
    visibility: visible;
  }

  .primary-nav .nav-list {
    flex-direction: column;
    gap: var(--space-lg);
    text-align: center;
  }

  .nav-anchor {
    font-size: 1.2rem;
  }

  .menu-toggle {
    display: flex;
    z-index: 300;
  }

  .menu-toggle.is-active .toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-toggle.is-active .toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.is-active .toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .listing-entry {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-sm);
    padding: var(--space-md);
  }

  .rank-pill {
    margin: 0 auto;
  }

  .brand-cell {
    justify-content: center;
  }

  .offer-note {
    display: block;
  }

  .action-btn {
    width: 100%;
    justify-content: center;
  }

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

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

  .author-profile {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .author-avatar-wrap {
    max-width: 200px;
    margin: 0 auto;
  }

  .author-bio ul {
    text-align: left;
  }

  h1 {
    font-size: 1.55rem;
  }
}

@media (max-width: 480px) {
  :root {
    --space-md: 1.15rem;
    --space-lg: 1.8rem;
    --space-xl: 2.8rem;
  }

  .masthead .frame-inner {
    height: 56px;
  }

  .brand-link img {
    height: 26px;
  }

  .review-brand-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .step-list li {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}