:root {
  --color-primary: #0f2a44;
  --color-accent: #00a8a8;
  --color-bg: #eef3f7;
  --color-surface: #ffffff;
  --color-surface-muted: #f3f7fa;
  --color-border: #d6e0ea;
  --color-border-light: #e8eef4;
  --color-text: #1a2330;
  --color-text-muted: #5a6675;
  --color-success: #1f8a5c;
  --color-success-hover: #166b46;
  --color-top-pick: #f4a300;
}

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

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

body {
  margin: 0;
  background: var(--color-bg);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
}

img,
svg {
  display: block;
  max-width: 100%;
}

a { color: inherit; }

button, input, textarea, select { font: inherit; }

/* ── HEADER ── */
header {
  background: linear-gradient(135deg, var(--color-primary) 0%, #173b5e 100%);
  color: #ffffff;
  padding: 0.9rem 1rem;
  box-shadow: 0 2px 10px rgba(15, 42, 68, 0.12);
}

.header-inner,
.footer-inner {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.logo {
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.logo-img { display: block; width: auto; height: 40px; }

header nav,
footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

header nav a,
footer nav a {
  color: #ffffff;
  text-decoration: none;
  padding: 0.3rem 0.95rem;
  border-radius: 6px;
  font-size: 0.9rem;
  transition: background 0.2s ease, color 0.2s ease;
}

header nav a:hover,
footer nav a:hover {
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}

header nav a.active,
footer nav a.active {
  background: var(--color-accent);
  color: #ffffff;
  font-weight: 600;
}

/* ── MAIN ── */
main {
  max-width: 920px;
  margin: 2rem auto;
  padding: 0 1.5rem 2rem;
  background: var(--color-surface);
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(15, 42, 68, 0.06);
}

main > h1 {
  margin: 0;
  padding: 1.75rem 0 0.75rem;
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-primary);
}

/* ── AUTHOR BLOCK ── */
.author-block {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1rem 1.15rem;
  background: var(--color-surface-muted);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: 10px;
}

.author-block img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--color-accent);
}

.author-block div { display: flex; flex-direction: column; gap: 0.15rem; }
.author-block strong { font-size: 0.95rem; line-height: 1.3; }
.author-block span { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.4; }

/* ── CONTENT ── */
.content { padding-bottom: 2rem; }
.content p { margin: 0 0 1rem; }

.content h2 {
  margin: 2.25rem 0 0.9rem;
  padding-left: 0.75rem;
  border-left: 5px solid var(--color-accent);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
}

.content h3 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-primary);
}

.content h4 {
  margin: 1rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
}

.content ul, .content ol { margin: 0 0 1rem; padding-left: 1.5rem; }
.content li { margin-bottom: 0.3rem; }

.content a { color: var(--color-accent); text-decoration: none; font-weight: 500; }
.content a:hover { text-decoration: underline; }

.content blockquote {
  margin: 1rem 0;
  padding: 0.5rem 1rem;
  background: var(--color-surface-muted);
  border-left: 4px solid var(--color-accent);
  color: var(--color-text-muted);
  border-radius: 0 6px 6px 0;
}

/* ── OFFERS ── */
.content .offers-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin: 1.5rem 0 2rem;
}

.content .offers-list a.offer-card {
  position: relative;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text);
  text-decoration: none;
  transition: box-shadow 0.18s ease, transform 0.15s ease, border-color 0.15s ease;
}

.content .offers-list a.offer-card:hover {
  box-shadow: 0 6px 24px rgba(15, 42, 68, 0.12);
  transform: translateY(-2px);
  border-color: var(--color-accent);
  text-decoration: none;
}

.content .offers-list a.offer-card:first-child {
  border-color: var(--color-top-pick);
  background: linear-gradient(180deg, #fffbef 0%, #ffffff 60%);
}

.content .offers-list a.offer-card:first-child::before {
  content: "★ TOP PICK";
  position: absolute;
  top: 0;
  left: 0;
  padding: 0.2rem 0.6rem;
  border-radius: 0 0 8px 0;
  background: var(--color-top-pick);
  color: #ffffff;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.content .offers-list .offer-rank {
  flex: 0 0 2.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--color-border-light);
  color: var(--color-accent);
  font-size: 0.88rem;
  font-weight: 800;
}

.content .offers-list .offer-logo-wrap {
  flex: 0 0 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 0.75rem;
  background: var(--color-surface-muted);
  border-right: 1px solid var(--color-border-light);
}

.content .offers-list .offer-logo {
  display: block;
  width: 96px;
  height: 48px;
  object-fit: contain;
  object-position: center;
}

.content .offers-list .offer-body {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.7rem 1rem;
}

.content .offers-list .offer-name {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--color-primary);
  font-size: 0.97rem;
  font-weight: 700;
  line-height: 1.35;
}

.content .offers-list .offer-bonus {
  display: block;
  color: var(--color-success);
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1.35;
}

.content .offers-list .offer-cta-wrap {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
}

.content .offers-list .offer-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 92px;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  background: var(--color-accent);
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
  transition: background 0.15s ease, transform 0.15s ease;
  box-shadow: 0 2px 8px rgba(0, 168, 168, 0.25);
}

.content .offers-list a.offer-card:hover .offer-cta {
  background: #007e7e;
  transform: scale(1.03);
}

/* ── TABLES ── */
table {
  width: 100%;
  margin: 1.25rem 0;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.9rem;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(15, 42, 68, 0.06);
}

thead tr {
  background: var(--color-primary);
  color: #ffffff;
}

thead th {
  padding: 0.7rem 0.85rem;
  text-align: left;
  vertical-align: top;
  font-weight: 600;
  letter-spacing: 0.02em;
}

tbody tr:nth-child(odd) { background: #f5f9fc; }
tbody tr:nth-child(even) { background: #ffffff; }
tbody tr:hover { background: #e7f4f4; }

tbody td {
  padding: 0.6rem 0.85rem;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
}

/* ── FAQ ── */
.faq { padding: 1rem 0 2rem; }

.faq h2 {
  margin: 0 0 1rem;
  padding-left: 0.75rem;
  border-left: 5px solid var(--color-accent);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  margin-bottom: 0.6rem;
  background: var(--color-surface);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item.open {
  border-color: var(--color-accent);
  box-shadow: 0 2px 12px rgba(0, 168, 168, 0.12);
}

.faq-question {
  position: relative;
  width: 100%;
  padding: 0.9rem 2.5rem 0.9rem 1rem;
  border: none;
  background: transparent;
  color: var(--color-text);
  text-align: left;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.faq-question::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-accent);
  color: #ffffff;
  font-size: 1.1rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item.open .faq-question::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 1rem 1rem;
  color: var(--color-text-muted);
}

.faq-answer p { margin-bottom: 0.5rem; }
.faq-item.open .faq-answer { display: block; }

/* ── FOOTER ── */
footer {
  margin-top: 2rem;
  padding: 1.25rem 1rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #173b5e 100%);
  color: #ffffff;
}

footer .logo { font-size: 0.95rem; }

.footer-copyright {
  max-width: 920px;
  margin: 0.75rem auto 0;
  padding: 0.75rem 1rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.78rem;
  line-height: 1.5;
}

.footer-copyright a { color: rgba(255, 255, 255, 0.9); text-decoration: none; }
.footer-copyright a:hover { text-decoration: underline; color: var(--color-accent); }

/* ── FOCUS ── */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ── MOBILE ── */
@media (max-width: 768px) {
  main { margin: 1rem auto; padding: 0 1rem 1.5rem; border-radius: 8px; }
  main > h1 { font-size: 1.55rem; }
  .content { padding: 0 0.1rem 1.5rem; }
  .content h2, .faq h2 { font-size: 1.25rem; }

  .header-inner, .footer-inner { flex-direction: column; align-items: flex-start; }

  table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; font-size: 0.82rem; border-radius: 8px; }
  thead th, tbody td { padding: 0.45rem 0.55rem; }

  .content .offers-list a.offer-card { flex-wrap: wrap; }
  .content .offers-list .offer-rank { flex: 0 0 2rem; font-size: 0.78rem; }
  .content .offers-list .offer-logo-wrap { flex: 0 0 86px; padding: 0.5rem; }
  .content .offers-list .offer-logo { width: 76px; height: 40px; }
  .content .offers-list .offer-body { flex: 1 1 0; padding: 0.55rem 0.65rem; }
  .content .offers-list .offer-name { font-size: 0.88rem; }
  .content .offers-list .offer-bonus { font-size: 0.78rem; white-space: normal; }
  .content .offers-list .offer-cta-wrap { flex: 0 0 100%; padding: 0 0.65rem 0.65rem; padding-left: calc(2rem + 86px + 2px); }
  .content .offers-list .offer-cta { width: 100%; min-width: unset; justify-content: center; padding: 0.52rem 0.75rem; font-size: 0.84rem; }

  .author-block { align-items: flex-start; }
  .logo-img { height: 34px; }
}

.intro-toggle {
  margin: 0 0 1.25rem;
}

.intro-toggle__content {
  position: relative;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.intro-toggle__content::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2.8em;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), var(--color-surface) 85%);
  pointer-events: none;
}

.intro-toggle__content p:last-child {
  margin-bottom: 0;
}

.intro-toggle__button {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.65rem;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
}

.intro-toggle__button::before {
  content: "Show more";
}

.intro-toggle__input:checked + .intro-toggle__content {
  display: block;
  -webkit-line-clamp: unset;
}

.intro-toggle__input:checked + .intro-toggle__content::after {
  display: none;
}

.intro-toggle__input:checked + .intro-toggle__content + .intro-toggle__button::before {
  content: "Show less";
}