:root {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif;
  --emerald: #10b981;
  --emerald-2: #14b8a6;
  --emerald-dark: #059669;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --slate-950: #020617;
  --amber: #f59e0b;
  --blue: #2563eb;
  --radius: 16px;
  --radius-xl: 24px;
  --shadow: 0 10px 15px -3px rgb(15 23 42 / 8%), 0 4px 6px -4px rgb(15 23 42 / 6%);
  --shadow-lg: 0 20px 25px -5px rgb(15 23 42 / 10%), 0 8px 10px -6px rgb(15 23 42 / 8%);
}

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

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

body {
  font-family: var(--font);
  color: var(--slate-900);
  background: var(--slate-50);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgb(255 255 255 / 92%);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
  padding-top: env(safe-area-inset-top);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--slate-950);
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--emerald), var(--emerald-2));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 8px 16px rgb(16 185 129 / 28%);
}

.logo span {
  font-size: 15px;
}

.nav {
  display: flex;
  gap: 18px;
  color: var(--slate-600);
  font-size: 14px;
  font-weight: 600;
}

.nav a:hover {
  color: var(--blue);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(90deg, var(--emerald), var(--emerald-2));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 16px;
  border-radius: 999px;
  box-shadow: 0 8px 18px rgb(16 185 129 / 25%);
}

.header-cta:hover {
  filter: brightness(1.05);
}

.hero {
  padding: 48px 0 28px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ecfdf5;
  color: var(--emerald-dark);
  border: 1px solid #a7f3d0;
  font-size: 13px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-weight: 900;
  max-width: 16ch;
  margin-bottom: 16px;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--emerald), #0d9488);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 62ch;
  font-size: 18px;
  color: var(--slate-600);
  margin-bottom: 24px;
}

.trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.trust li {
  list-style: none;
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--slate-700);
  display: flex;
  align-items: center;
  gap: 6px;
}

.trust li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 0 4px rgb(16 185 129 / 18%);
}

#filter {
  scroll-margin-top: 80px;
}

.filter-card {
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 22px 24px 18px;
  margin: 8px 0 28px;
}

.filter-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

.filter-head h2 {
  font-size: 18px;
  letter-spacing: -0.03em;
}

.filter-head p {
  color: var(--slate-500);
  font-size: 14px;
  margin-top: 4px;
}

.filter-count {
  background: #ecfdf5;
  color: var(--emerald-dark);
  font-weight: 800;
  font-size: 13px;
  padding: 8px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.sliders {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.slider-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 14px;
  font-weight: 600;
  color: var(--slate-700);
}

.slider-value {
  color: var(--slate-950);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.03em;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(to right, var(--emerald) 0%, var(--emerald) 0%, var(--slate-200) 0%, var(--slate-200) 100%);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--emerald);
  box-shadow: 0 4px 10px rgb(15 23 42 / 18%);
  cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--emerald);
  box-shadow: 0 4px 10px rgb(15 23 42 / 18%);
  cursor: pointer;
}

.offers-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 16px;
}

.offers-head h2 {
  font-size: 28px;
  letter-spacing: -0.04em;
}

.updated-date {
  font-size: 14px;
  font-weight: 700;
  color: var(--slate-500);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.offers {
  display: grid;
  gap: 16px;
}

.offer {
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 20px;
  align-items: center;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.offer:hover {
  border-color: #a7f3d0;
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}

.offer.is-hidden {
  display: none;
}

.offer-top {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.offer-logo {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  display: grid;
  place-items: center;
  overflow: hidden;
  flex-shrink: 0;
}

.offer-logo img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.offer-title {
  min-width: 0;
}

.offer-title .offer-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  overflow-wrap: break-word;
}

.offer-title .brand {
  color: var(--slate-500);
  font-size: 13px;
  font-weight: 600;
  margin-top: 2px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.badge {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.02em;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--slate-100);
  color: var(--slate-700);
}

.badge-hot {
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fcd34d;
}

.badge-free {
  background: #ecfdf5;
  color: #047857;
  border: 1px solid #6ee7b7;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0 12px;
}

.stat {
  background: var(--slate-50);
  border: 1px solid var(--slate-100);
  border-radius: 12px;
  padding: 10px 12px;
}

.stat .label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--slate-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat .value {
  display: block;
  margin-top: 2px;
  font-size: 14px;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.offer-promo {
  margin: 12px 0 4px;
  padding: 10px 14px;
  background: linear-gradient(90deg, #ecfdf5, #f0fdfa);
  border: 1px solid #a7f3d0;
  border-radius: 14px;
  color: #115e59;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
}

.offer-promo strong {
  color: #047857;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.offer-points {
  color: var(--slate-700);
  font-size: 14px;
  padding-left: 18px;
  display: grid;
  gap: 4px;
}

.offer-side {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.cta {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  border: 0;
  cursor: pointer;
  background: linear-gradient(90deg, var(--emerald), var(--emerald-2));
  color: #fff;
  font-weight: 800;
  border-radius: 14px;
  min-height: 48px;
  box-shadow: 0 10px 18px rgb(16 185 129 / 25%);
  transition: filter 0.15s, transform 0.15s;
}

.cta:hover {
  filter: brightness(1.06);
}

.cta:active {
  transform: scale(0.98);
}

.meta-line {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--slate-500);
  font-weight: 600;
}

.empty {
  display: none;
  background: #fff;
  border: 1px dashed var(--slate-300);
  border-radius: var(--radius-xl);
  padding: 36px 20px;
  text-align: center;
  color: var(--slate-600);
}

.empty.is-visible {
  display: block;
}

.seo {
  margin-top: 56px;
  margin-bottom: 24px;
  margin-inline: auto;
  background: #fff;
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

.seo h2 {
  font-size: 28px;
  letter-spacing: -0.04em;
  margin: 28px 0 12px;
}

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

.seo h3 {
  font-size: 20px;
  margin: 22px 0 10px;
}

.seo p {
  color: var(--slate-700);
  margin-bottom: 12px;
  font-size: 16px;
  overflow-wrap: break-word;
}

.seo ul,
.seo ol {
  margin: 0 0 16px 22px;
  color: var(--slate-700);
  display: grid;
  gap: 8px;
}

.seo li {
  padding-left: 4px;
}

.table-scroll {
  overflow-x: auto;
  margin: 18px 0 20px;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--slate-200);
  border-radius: 14px;
}

.seo table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 15px;
  color: var(--slate-700);
}

.seo caption {
  caption-side: top;
  text-align: left;
  font-weight: 800;
  font-size: 16px;
  color: var(--slate-900);
  padding: 14px 14px 10px;
  letter-spacing: -0.03em;
}

.seo th,
.seo td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--slate-200);
  line-height: 1.45;
}

.seo thead th {
  background: #ecfdf5;
  color: #065f46;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-top: 0;
}

.seo thead th.col-regular {
  background: #fef2f2;
  color: #dc2626;
}

.seo tbody th {
  width: 26%;
  background: var(--slate-50);
  color: var(--slate-900);
  font-weight: 800;
}

.seo tbody td:first-child {
  background: #f0fdf4;
}

.seo tbody td:last-child {
  background: #fef2f2;
}

.faq {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.faq details {
  border: 1px solid var(--slate-200);
  border-radius: 14px;
  background: var(--slate-50);
  padding: 14px 16px;
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

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

.faq summary::after {
  content: "+";
  color: var(--emerald-dark);
  font-size: 20px;
  line-height: 1;
}

.faq details[open] summary::after {
  content: "–";
}

.faq details p {
  margin: 10px 0 0;
  color: var(--slate-600);
}

.site-footer {
  background: var(--slate-950);
  color: #cbd5e1;
  padding: 40px 0 28px;
  margin-top: 40px;
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
}

.footer-name {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
}

.legal a {
  color: #99f6e4;
}

.legal {
  color: #94a3b8;
  line-height: 1.6;
}

.legal p + p {
  margin-top: 8px;
}

@media (hover: none) {
  .offer:hover {
    transform: none;
    box-shadow: var(--shadow);
    border-color: var(--slate-200);
  }
}

@media (max-width: 860px) {
  .container {
    width: min(1120px, calc(100% - 24px));
  }

  .nav {
    display: none;
  }

  .header-inner {
    min-height: 56px;
    gap: 10px;
  }

  .logo {
    min-width: 0;
    gap: 8px;
  }

  .logo span {
    font-size: 13px;
    white-space: nowrap;
  }

  .header-cta {
    flex-shrink: 0;
    font-size: 13px;
    padding: 9px 12px;
  }

  .hero {
    padding: 24px 0 16px;
  }

  .hero-kicker {
    font-size: 12px;
    max-width: 100%;
    white-space: normal;
    line-height: 1.35;
  }

  .hero-lead {
    font-size: 16px;
    margin-bottom: 16px;
  }

  .trust {
    gap: 8px;
  }

  .trust li {
    font-size: 12px;
    padding: 7px 10px;
  }

  .filter-card {
    padding: 16px 14px 14px;
    margin: 4px 0 20px;
    border-radius: 18px;
  }

  .filter-head {
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }

  .filter-head p {
    font-size: 13px;
  }

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

  .sliders {
    gap: 18px;
  }

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

  .offer {
    padding: 16px;
    gap: 14px;
    border-radius: 18px;
  }

  .offer-logo {
    width: 52px;
    height: 52px;
    border-radius: 14px;
  }

  .offer-logo img {
    width: 38px;
    height: 38px;
  }

  .offer-title .offer-name {
    font-size: 18px;
  }

  .offer-promo {
    font-size: 14px;
    padding: 9px 12px;
  }

  .offer-promo strong {
    font-size: 16px;
  }

  .offers-head h2 {
    font-size: 22px;
  }

  .cta {
    min-height: 48px;
  }

  input[type="range"] {
    height: 10px;
  }

  input[type="range"]::-webkit-slider-thumb {
    width: 28px;
    height: 28px;
  }

  input[type="range"]::-moz-range-thumb {
    width: 28px;
    height: 28px;
  }

  .seo {
    margin-top: 36px;
    margin-bottom: 16px;
    margin-inline: auto;
    padding: 22px 16px;
    border-radius: 18px;
  }

  .seo h2 {
    font-size: 22px;
  }

  .seo p,
  .seo li {
    font-size: 15px;
  }

  .seo table {
    font-size: 14px;
    min-width: 480px;
  }

  .seo caption {
    font-size: 15px;
    padding: 12px 12px 8px;
  }

  .seo th,
  .seo td {
    padding: 9px 10px;
  }

  .faq summary {
    font-size: 15px;
  }

  .site-footer {
    padding: 28px 0 calc(20px + env(safe-area-inset-bottom));
  }

  #filter,
  #offers,
  #seo,
  #faq {
    scroll-margin-top: 68px;
  }
}

@media (max-width: 480px) {
  .container {
    width: min(1120px, calc(100% - 20px));
  }

  .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 14px;
    border-radius: 8px;
  }

  .hero h1 {
    font-size: 30px;
    max-width: none;
  }

  .header-cta {
    padding: 8px 10px;
    font-size: 12px;
  }

  .stats {
    gap: 8px;
  }

  .stat {
    padding: 8px 10px;
  }

  .stat .value {
    font-size: 13px;
  }

  .seo {
    padding: 18px 14px;
  }

  .seo ul,
  .seo ol {
    margin-left: 18px;
  }

  .seo table {
    min-width: 460px;
  }

  .footer-grid {
    gap: 18px;
  }
}