:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface2: #eef2f6;
  --border: #d6dde6;
  --accent: #00b8ff;
  --accent-light: #58d3ff;
  --accent-dim: #0088c7;
  --silver: #cfd6df;
  --silver-light: #f8fafc;
  --silver-dim: #aab4c2;
  --graphite: #2a3038;
  --graphite-light: #47515d;
  --graphite-dim: #1f252c;
  --text: #1f252c;
  --muted: #697584;
  --sp-xs: 0.25rem;
  --sp-sm: 0.5rem;
  --sp-md: 1rem;
  --sp-lg: 1.5rem;
  --sp-xl: 2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-pill: 50px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.12);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container: 1140px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-dim); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
ul, ol { list-style: none; }

.wrap { max-width: var(--container); margin: 0 auto; padding: 0 var(--sp-lg); }
.narrow-wrap { max-width: 820px; }

/* ---- HEADER ---- */
.masthead {
  background: var(--graphite-dim);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand-link img { height: 28px; width: auto; }
.primary-nav ul {
  display: flex;
  gap: var(--sp-lg);
}
.primary-nav a {
  color: var(--silver);
  font-size: .9rem;
  font-weight: 500;
  padding: var(--sp-xs) 0;
  transition: color .2s;
}
.primary-nav a:hover,
.primary-nav .nav-active {
  color: var(--accent-light);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--silver);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media(max-width:768px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--graphite-dim);
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  }
  .primary-nav.open { max-height: 300px; }
  .primary-nav ul {
    flex-direction: column;
    gap: 0;
    padding: var(--sp-sm) var(--sp-lg) var(--sp-lg);
  }
  .primary-nav a {
    display: block;
    padding: var(--sp-sm) 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
}

/* ---- BREADCRUMB ---- */
.breadcrumb-bar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: var(--sp-sm) 0;
}
.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-xs);
  font-size: .82rem;
  color: var(--muted);
}
.crumbs li::after { content: "›"; margin-left: var(--sp-xs); color: var(--silver-dim); }
.crumbs li:last-child::after { content: ""; }
.crumbs a { color: var(--accent-dim); }

/* ---- HERO / STAGE ---- */
.stage-section {
  background: linear-gradient(135deg, var(--graphite-dim), var(--graphite));
  color: #fff;
  padding: var(--sp-3xl) 0 var(--sp-2xl);
  text-align: center;
}
.stage-section h1 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.25;
  margin-bottom: var(--sp-md);
}
.stage-lead {
  max-width: 680px;
  margin: 0 auto;
  color: var(--silver);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ---- SECTIONS ---- */
.content-block {
  padding: var(--sp-3xl) 0;
}
.content-block.alt-bg {
  background: var(--surface);
}
.content-block h2 {
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -.01em;
  margin-bottom: var(--sp-lg);
  color: var(--graphite-dim);
  line-height: 1.3;
}
.content-block h3 {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  font-weight: 600;
  margin: var(--sp-xl) 0 var(--sp-sm);
  color: var(--graphite);
}
.content-block p {
  margin-bottom: var(--sp-md);
  color: var(--graphite-light);
}
.content-block ul, .content-block ol {
  margin-bottom: var(--sp-md);
  padding-left: var(--sp-lg);
}
.content-block li {
  list-style: disc;
  margin-bottom: var(--sp-xs);
  color: var(--graphite-light);
}
.section-intro {
  font-size: 1.05rem;
  margin-bottom: var(--sp-xl);
  max-width: 780px;
}

/* ---- CATALOG (Showcase) ---- */
.catalog-section {
  background: var(--surface);
  padding: var(--sp-3xl) 0;
}
.catalog-section h2 {
  text-align: center;
  margin-bottom: var(--sp-xl);
  color: var(--graphite-dim);
  font-size: clamp(1.25rem, 3vw, 1.7rem);
}
.catalog-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}
.catalog-entry {
  display: grid;
  grid-template-columns: 48px 140px 1fr auto;
  align-items: center;
  gap: var(--sp-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s, transform .25s;
  position: relative;
}
.catalog-entry:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.catalog-rank {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.catalog-rank span {
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
}
.catalog-brand {
  background: var(--graphite);
  border: 1px solid rgba(207,214,223,.15);
  border-radius: var(--radius-sm);
  padding: var(--sp-sm) var(--sp-md);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
}
.catalog-brand img {
  max-height: 34px;
  width: auto;
  object-fit: contain;
}
.catalog-info {
  min-width: 0;
}
.catalog-bonus-name {
  display: inline-block;
  background: rgba(0,184,255,.1);
  color: var(--accent-dim);
  font-size: .78rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--sp-xs);
}
.catalog-bonus-val {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--graphite-dim);
  margin-bottom: 2px;
}
.catalog-bonus-desc {
  font-size: .85rem;
  color: var(--muted);
  margin: 0;
}
.catalog-cta {
  flex-shrink: 0;
}

/* ---- CTA BUTTONS ---- */
.cta-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff;
  font-weight: 700;
  font-size: .88rem;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  text-align: center;
  letter-spacing: .03em;
  transition: box-shadow .25s, transform .15s;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.cta-primary:hover {
  box-shadow: 0 8px 28px rgba(0,184,255,.28);
  color: #fff;
  transform: translateY(-1px);
}
.cta-primary:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 3px;
}
.cta-sm {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff;
  font-weight: 700;
  font-size: .8rem;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  transition: box-shadow .25s, transform .15s;
}
.cta-sm:hover {
  box-shadow: 0 6px 20px rgba(0,184,255,.25);
  color: #fff;
  transform: translateY(-1px);
}

/* ---- COMPARISON TABLE ---- */
.compare-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.compare-tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  min-width: 700px;
}
.compare-tbl thead {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
}
.compare-tbl th {
  color: #fff;
  font-weight: 600;
  padding: 14px 16px;
  text-align: left;
  white-space: nowrap;
}
.compare-tbl td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.compare-tbl tbody tr:nth-child(odd) { background: var(--surface); }
.compare-tbl tbody tr:nth-child(even) { background: var(--surface2); }
.compare-tbl td img {
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
  background: var(--graphite);
  padding: 4px 8px;
  border-radius: 4px;
  max-height: 26px;
  width: auto;
}
.compact-tbl { min-width: 580px; }

.pill-badge {
  display: inline-block;
  background: rgba(0,184,255,.1);
  color: var(--accent-dim);
  font-weight: 600;
  font-size: .78rem;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
}

/* ---- EVALUATION CARDS (Reviews) ---- */
.evaluation-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--sp-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .3s;
}
.evaluation-card:hover {
  box-shadow: var(--shadow-md);
}
.eval-header {
  background: var(--graphite);
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
  padding: var(--sp-lg) var(--sp-xl);
  position: relative;
}
.eval-rank {
  position: absolute;
  top: 12px;
  left: 14px;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
}
.eval-logo {
  margin-left: 36px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.eval-logo img {
  max-height: 32px;
  width: auto;
  object-fit: contain;
}
.eval-body {
  padding: var(--sp-xl);
}
.eval-body h3 {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  font-weight: 700;
  margin: 0 0 var(--sp-md);
  color: var(--graphite-dim);
}
.eval-body p {
  color: var(--graphite-light);
  margin-bottom: var(--sp-md);
  line-height: 1.7;
}
.eval-bonus-highlight {
  background: var(--surface2);
  border-left: 4px solid var(--accent);
  padding: var(--sp-md) var(--sp-lg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: var(--sp-lg);
}
.eval-bonus-tag {
  display: inline-block;
  background: rgba(0,184,255,.1);
  color: var(--accent-dim);
  font-size: .75rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--sp-xs);
}
.eval-bonus-highlight strong {
  display: block;
  font-size: 1.05rem;
  color: var(--graphite-dim);
}
.eval-pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
  margin-bottom: var(--sp-lg);
}
.eval-pros h4, .eval-cons h4 {
  font-size: .88rem;
  font-weight: 700;
  margin-bottom: var(--sp-sm);
}
.eval-pros h4 { color: #1a9e5c; }
.eval-cons h4 { color: #d64545; }
.eval-pros ul, .eval-cons ul {
  padding-left: var(--sp-lg);
}
.eval-pros li, .eval-cons li {
  font-size: .88rem;
  margin-bottom: var(--sp-xs);
  color: var(--graphite-light);
}
.eval-pros li { list-style: "✓ "; }
.eval-cons li { list-style: "✗ "; }
.eval-pros li::marker { color: #1a9e5c; }
.eval-cons li::marker { color: #d64545; }

.eval-details {
  margin-bottom: var(--sp-lg);
}
.eval-details table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}
.eval-details td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.eval-details tr td:first-child {
  font-weight: 600;
  color: var(--graphite);
  width: 40%;
}
.eval-details tr:nth-child(odd) { background: var(--surface2); }

.eval-body > .cta-primary {
  display: block;
  text-align: center;
  max-width: 280px;
}

/* ---- FAQ ---- */
.faq-section {
  padding-bottom: var(--sp-3xl);
}
.faq-panel { margin-top: var(--sp-md); }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: var(--sp-sm);
  background: var(--surface);
  overflow: hidden;
  transition: box-shadow .2s;
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item summary {
  cursor: pointer;
  padding: var(--sp-md) var(--sp-lg);
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  user-select: none;
}
.faq-item summary::marker,
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "+";
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,184,255,.1);
  color: var(--accent-dim);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.1rem;
  transition: transform .25s;
}
.faq-item[open] summary::before {
  content: "−";
  transform: rotate(180deg);
}
.faq-item summary h3 {
  font-size: .95rem;
  font-weight: 600;
  margin: 0;
  color: var(--graphite);
}
.faq-answer {
  padding: 0 var(--sp-lg) var(--sp-lg);
  padding-left: calc(var(--sp-lg) + 36px);
}
.faq-answer p {
  color: var(--graphite-light);
  font-size: .92rem;
  margin: 0;
}

/* ---- VERDICT ---- */
.verdict-section {
  background: linear-gradient(135deg, var(--graphite-dim), var(--graphite));
  color: #fff;
}
.verdict-section h2 { color: #fff; }
.verdict-section p { color: var(--silver); }

/* ---- AUTHOR PROFILE ---- */
.author-profile {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
  margin-bottom: var(--sp-xl);
  padding: var(--sp-xl);
  background: var(--surface2);
  border-radius: var(--radius-lg);
}
.author-avatar img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 3px solid var(--accent);
}
.author-bio h1 {
  font-size: 1.6rem;
  margin-bottom: var(--sp-xs);
}
.author-role {
  color: var(--accent-dim);
  font-weight: 600;
  font-size: .95rem;
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--graphite-dim);
  color: var(--silver-dim);
  padding: var(--sp-3xl) 0 var(--sp-xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--sp-2xl);
  margin-bottom: var(--sp-2xl);
}
.footer-brand img {
  margin-bottom: var(--sp-md);
  height: 26px;
  width: auto;
}
.footer-brand p {
  font-size: .88rem;
  color: var(--silver-dim);
  line-height: 1.6;
}
.footer-links h4 {
  color: var(--silver);
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: var(--sp-md);
}
.footer-links ul { padding: 0; }
.footer-links li {
  list-style: none;
  margin-bottom: var(--sp-sm);
}
.footer-links a {
  color: var(--silver-dim);
  font-size: .88rem;
  transition: color .2s;
}
.footer-links a:hover { color: var(--accent-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: var(--sp-lg);
  text-align: center;
  font-size: .82rem;
}
.footer-bottom p { color: var(--silver-dim); margin-bottom: var(--sp-xs); }
.footer-author a { color: var(--accent-light); }

/* ---- SCROLL TO TOP ---- */
.scroll-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,184,255,.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity .3s, visibility .3s, transform .3s, box-shadow .2s;
  z-index: 90;
}
.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top-btn:hover {
  box-shadow: 0 8px 28px rgba(0,184,255,.45);
}
.scroll-top-btn:focus-visible {
  outline: 2px solid var(--accent-light);
  outline-offset: 3px;
}

/* ---- RESPONSIVE ---- */
@media(max-width:900px) {
  .catalog-entry {
    grid-template-columns: 40px 120px 1fr;
    gap: var(--sp-md);
  }
  .catalog-cta {
    grid-column: 1 / -1;
    text-align: center;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-lg);
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media(max-width:640px) {
  .wrap { padding: 0 var(--sp-md); }
  .stage-section { padding: var(--sp-2xl) 0 var(--sp-xl); }
  .content-block { padding: var(--sp-2xl) 0; }

  .catalog-entry {
    grid-template-columns: 1fr;
    gap: var(--sp-sm);
    padding: var(--sp-md);
    position: relative;
    padding-top: calc(var(--sp-md) + 8px);
  }
  .catalog-rank {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 32px;
    height: 32px;
  }
  .catalog-rank span { font-size: .82rem; }
  .catalog-brand {
    margin-left: 42px;
    max-width: 140px;
    padding: 6px 12px;
  }
  .catalog-cta { text-align: center; }
  .catalog-cta .cta-primary { width: 100%; display: block; }

  .eval-pros-cons {
    grid-template-columns: 1fr;
    gap: var(--sp-md);
  }
  .eval-header { padding: var(--sp-md); }
  .eval-body { padding: var(--sp-md); }
  .eval-logo { margin-left: 32px; }
  .eval-body > .cta-primary { max-width: 100%; }

  .author-profile {
    flex-direction: column;
    text-align: center;
    padding: var(--sp-lg);
  }
  .author-avatar img { width: 100px; height: 100px; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }

  .scroll-top-btn {
    bottom: 18px;
    right: 18px;
    width: 42px;
    height: 42px;
  }

  .compare-tbl { font-size: .82rem; }
  .faq-answer { padding-left: var(--sp-lg); }
}