:root {
  color-scheme: light dark;
  --bg: #f5f8ff;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-solid: #ffffff;
  --surface-soft: #edf3ff;
  --ink: #142039;
  --muted: #65728a;
  --line: rgba(34, 57, 101, 0.13);
  --blue: #2385f5;
  --blue-deep: #1267c7;
  --blue-soft: #ddebff;
  --mint: #55d7af;
  --violet: #7757e8;
  --shadow: 0 20px 60px rgba(44, 79, 136, 0.14);
  --shadow-soft: 0 10px 32px rgba(44, 79, 136, 0.09);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --page: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1423;
    --surface: rgba(22, 32, 52, 0.9);
    --surface-solid: #162034;
    --surface-soft: #1b2943;
    --ink: #eef5ff;
    --muted: #a9b6ca;
    --line: rgba(196, 216, 255, 0.14);
    --blue: #5ba7ff;
    --blue-deep: #83bdff;
    --blue-soft: #18385f;
    --mint: #62dfb9;
    --violet: #a994ff;
    --shadow: 0 22px 70px rgba(0, 0, 0, 0.32);
    --shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.24);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 8% 6%, rgba(35, 133, 245, 0.12), transparent 27rem),
    radial-gradient(circle at 92% 18%, rgba(85, 215, 175, 0.12), transparent 25rem),
    var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.page-glow {
  position: fixed;
  z-index: -1;
  width: 24rem;
  height: 24rem;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.18;
  pointer-events: none;
}

.page-glow-one {
  top: -12rem;
  right: -9rem;
  background: var(--blue);
}

.page-glow-two {
  top: 46rem;
  left: -15rem;
  background: var(--mint);
}

.site-header {
  width: min(calc(100% - 32px), var(--page));
  min-height: 64px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 19px;
  font-weight: 780;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 11px 11px 11px 4px;
  background: linear-gradient(145deg, var(--blue), var(--violet));
  color: #ffffff;
  font-size: 17px;
  font-weight: 850;
  box-shadow: 0 8px 18px rgba(35, 133, 245, 0.23);
}

.header-note {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.header-note span {
  color: var(--mint);
  font-size: 10px;
}

main {
  display: block;
}

.hero,
.section,
.site-footer {
  width: min(calc(100% - 32px), var(--page));
  margin-inline: auto;
}

.hero {
  min-height: calc(100svh - 64px);
  padding: 22px 0 44px;
  display: grid;
  align-items: center;
  gap: 26px;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.11em;
  line-height: 1.4;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 14ch;
  margin-bottom: 16px;
  font-size: clamp(2.35rem, 11vw, 4.9rem);
  font-weight: 830;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.9rem, 7vw, 3.25rem);
  font-weight: 800;
}

h3 {
  font-size: 1.16rem;
  font-weight: 760;
}

.hero-subtitle {
  max-width: 620px;
  margin: 0 0 20px;
  color: var(--muted);
  font-size: clamp(1rem, 3.7vw, 1.18rem);
  line-height: 1.55;
}

.button {
  width: 100%;
  min-height: 52px;
  padding: 13px 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 15px;
  font-size: 15px;
  font-weight: 780;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
  touch-action: manipulation;
}

.button-primary {
  background: linear-gradient(135deg, var(--blue), #1771d8);
  color: #ffffff;
  box-shadow: 0 14px 30px rgba(35, 133, 245, 0.26);
}

.button-primary::after {
  content: "↗";
  margin-left: 8px;
  font-size: 17px;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 17px 36px rgba(35, 133, 245, 0.31);
}

.button:active {
  transform: translateY(0);
}

.button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--blue) 55%, transparent);
  outline-offset: 4px;
}

.hero-note,
.noscript-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.hero-note span {
  color: var(--mint);
  font-weight: 900;
}

.chat-card {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.chat-card::before {
  content: "";
  position: absolute;
  inset: 50px 0 35px;
  z-index: -1;
  opacity: 0.42;
  background-image:
    radial-gradient(circle at 14px 14px, rgba(35, 133, 245, 0.13) 1.5px, transparent 1.5px),
    radial-gradient(circle at 32px 32px, rgba(85, 215, 175, 0.12) 1.5px, transparent 1.5px);
  background-size: 40px 40px;
}

.chat-topbar {
  min-height: 54px;
  padding: 9px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-solid) 88%, transparent);
}

.chat-topbar > span:nth-child(2) {
  display: grid;
  line-height: 1.2;
}

.chat-topbar strong {
  font-size: 14px;
}

.chat-topbar small {
  color: var(--muted);
  font-size: 10px;
}

.chat-avatar {
  width: 35px;
  height: 35px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--blue), var(--violet));
  color: white;
  font-size: 14px;
  font-weight: 800;
}

.chat-status {
  width: 8px;
  height: 8px;
  margin-left: auto;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--mint) 18%, transparent);
}

.chat-body {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message {
  max-width: 92%;
  padding: 9px 11px;
  border-radius: 15px;
  font-size: 12px;
  line-height: 1.35;
  box-shadow: 0 6px 14px rgba(35, 55, 90, 0.06);
}

.message p {
  margin: 0;
}

.message-user {
  align-self: flex-end;
  border-bottom-right-radius: 5px;
  background: var(--blue);
  color: white;
}

.message-user small,
.message-save small {
  margin-left: 6px;
  opacity: 0.78;
  font-size: 9px;
}

.message-bot {
  align-self: flex-start;
  border: 1px solid var(--line);
  border-bottom-left-radius: 5px;
  background: var(--surface-solid);
}

.correction {
  color: var(--blue-deep);
}

.correction del {
  color: var(--muted);
}

.translation {
  margin: 2px 0 5px !important;
  color: var(--muted);
  font-size: 10px;
}

.voice-pill {
  margin-top: 6px;
  padding: 5px 7px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 9px;
  font-weight: 650;
}

.message-save {
  align-self: flex-start;
  padding-block: 7px;
  background: color-mix(in srgb, var(--mint) 20%, var(--surface-solid));
  color: var(--ink);
}

.proof-caption {
  margin: 0;
  padding: 8px 14px 11px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 680;
  text-align: center;
}

.section {
  padding: 62px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 24px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
}

.section-heading.centered {
  margin-inline: auto;
  text-align: center;
}

.path-section {
  display: grid;
  gap: 24px;
  align-items: center;
}

.path-card {
  overflow: hidden;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, var(--surface-solid), var(--surface-soft));
  box-shadow: var(--shadow-soft);
}

.path-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.path-kicker {
  color: var(--muted);
  font-size: 12px;
  font-weight: 740;
}

.path-card h3 {
  margin: 3px 0 0;
  font-size: 24px;
}

.path-percent {
  width: 47px;
  height: 47px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid color-mix(in srgb, var(--blue) 35%, transparent);
  border-radius: 15px;
  background: var(--blue-soft);
  color: var(--blue-deep);
  font-size: 14px;
  font-weight: 820;
}

.progress-track {
  height: 8px;
  margin: 19px 0 14px;
  overflow: hidden;
  border-radius: 99px;
  background: color-mix(in srgb, var(--muted) 16%, transparent);
}

.progress-track span {
  width: 8%;
  height: 100%;
  display: block;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue), var(--mint));
}

.path-status {
  margin: 0 0 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.path-status span {
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface-solid);
  font-size: 12px;
  font-weight: 700;
}

.path-level {
  margin: 0;
  font-weight: 760;
}

.path-library {
  margin: 14px -22px -22px;
  padding: 14px 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.steps {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
  list-style: none;
}

.step {
  position: relative;
  min-height: 190px;
  padding: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.step-number {
  display: block;
  margin-bottom: 30px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.step h3 {
  margin-bottom: 10px;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.step::after {
  content: "";
  position: absolute;
  top: -34px;
  right: -34px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--blue) 8%, transparent);
}

.free-card {
  padding: 28px;
  display: grid;
  gap: 24px;
  border: 1px solid color-mix(in srgb, var(--blue) 20%, var(--line));
  border-radius: var(--radius-xl);
  background:
    linear-gradient(120deg, color-mix(in srgb, var(--blue) 9%, var(--surface-solid)), color-mix(in srgb, var(--mint) 10%, var(--surface-solid)));
  box-shadow: var(--shadow-soft);
}

.free-card h2 {
  margin-bottom: 10px;
}

.free-card p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
}

.check-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 11px 12px 11px 41px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface-solid) 76%, transparent);
  font-size: 14px;
  font-weight: 690;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 13px;
  top: 10px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 7px;
  background: color-mix(in srgb, var(--mint) 24%, transparent);
  color: color-mix(in srgb, var(--mint) 78%, var(--ink));
  font-size: 12px;
  font-weight: 900;
}

.pricing-grid {
  display: grid;
  gap: 14px;
}

.price-card {
  position: relative;
  min-height: 250px;
  padding: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.price-card-primary {
  border-color: color-mix(in srgb, var(--blue) 38%, transparent);
  background: linear-gradient(150deg, color-mix(in srgb, var(--blue) 14%, var(--surface-solid)), var(--surface-solid));
}

.price-card-primary::after {
  content: "";
  position: absolute;
  right: -65px;
  bottom: -75px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--blue) 13%, transparent);
}

.price-tag {
  display: inline-block;
  margin-bottom: 30px;
  padding: 5px 9px;
  border-radius: 99px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
}

.price-card h3 {
  margin-bottom: 7px;
}

.price-stars {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: clamp(2rem, 10vw, 3rem);
  font-weight: 850;
  letter-spacing: -0.055em;
  line-height: 1.1;
}

.price-rub {
  margin: 7px 0 22px;
  color: var(--muted);
  font-size: 14px;
}

.price-detail {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.price-card.is-unavailable .price-stars {
  color: var(--muted);
  font-size: 16px;
  letter-spacing: 0;
}

.payment-note {
  max-width: 760px;
  margin: 20px auto 0;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.faq-section {
  max-width: 800px;
}

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  position: relative;
  padding: 20px 42px 20px 2px;
  cursor: pointer;
  font-weight: 750;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  top: 16px;
  right: 2px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--surface-soft);
  color: var(--blue-deep);
  font-size: 19px;
  transition: transform 160ms ease;
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-list details p {
  margin: -8px 0 20px;
  padding-right: 42px;
  color: var(--muted);
}

.final-cta {
  margin-top: 42px;
  margin-bottom: 52px;
  padding-inline: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(145deg, var(--surface-solid), color-mix(in srgb, var(--blue) 11%, var(--surface-solid)));
  box-shadow: var(--shadow);
  text-align: center;
}

.final-cta h2 {
  max-width: 760px;
  margin-inline: auto;
}

.final-cta .button {
  max-width: 470px;
}

.site-footer {
  padding: 30px 0 42px;
  display: grid;
  gap: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.footer-brand {
  align-items: flex-start;
}

.footer-brand > span:last-child {
  display: grid;
}

.footer-brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

.seller p {
  margin: 0 0 4px;
}

.placeholder {
  color: var(--ink);
  font-weight: 690;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
}

.footer-links a,
.back-link {
  color: var(--blue-deep);
  font-weight: 720;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.legal-page {
  background: var(--bg);
}

.legal-shell {
  width: min(calc(100% - 32px), 820px);
  margin: 34px auto 80px;
}

.legal-shell > h1 {
  max-width: 18ch;
  margin-bottom: 8px;
  font-size: clamp(2.2rem, 8vw, 4.2rem);
}

.legal-updated {
  margin: 0 0 38px;
  color: var(--muted);
}

.draft-banner {
  margin-bottom: 34px;
  padding: 13px 15px;
  border: 1px solid color-mix(in srgb, #d88a13 45%, var(--line));
  border-radius: 13px;
  background: color-mix(in srgb, #ffc657 15%, var(--surface-solid));
  color: var(--ink);
  font-size: 13px;
}

.legal-shell section {
  margin-top: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.legal-shell section h2 {
  margin-bottom: 13px;
  font-size: 1.35rem;
}

.legal-shell section p {
  margin: 0 0 12px;
}

.legal-shell section p:last-child {
  margin-bottom: 0;
}

.legal-shell mark {
  padding: 1px 4px;
  border-radius: 4px;
  background: color-mix(in srgb, #ffc657 28%, transparent);
  color: var(--ink);
  font-weight: 700;
}

.legal-shell code {
  padding: 2px 5px;
  border-radius: 5px;
  background: var(--surface-soft);
  color: var(--blue-deep);
}

.legal-table-wrap {
  overflow-x: auto;
}

.legal-shell table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.legal-shell th,
.legal-shell td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.legal-shell th {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

@media (min-width: 640px) {
  .site-header,
  .hero,
  .section,
  .site-footer {
    width: min(calc(100% - 64px), var(--page));
  }

  .button {
    width: auto;
    min-width: 330px;
  }

  .hero-note,
  .noscript-note {
    width: max-content;
    max-width: 100%;
    text-align: left;
  }

  .path-section,
  .free-card {
    grid-template-columns: 0.85fr 1.15fr;
  }

  .steps,
  .pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps .step:last-child {
    grid-column: 1 / -1;
  }

  .site-footer {
    grid-template-columns: 0.75fr 1.6fr auto;
    align-items: start;
  }

  .footer-links {
    justify-content: flex-end;
  }
}

@media (min-width: 900px) {
  .hero {
    min-height: calc(100svh - 64px);
    padding: 28px 0 64px;
    grid-template-columns: minmax(0, 1.08fr) minmax(370px, 0.82fr);
    gap: clamp(42px, 6vw, 86px);
  }

  .hero-copy .button {
    min-width: 410px;
  }

  .chat-card {
    transform: rotate(1deg);
  }

  .section {
    padding-block: 88px;
  }

  .path-section {
    grid-template-columns: 0.8fr 1.2fr;
    gap: 80px;
  }

  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .steps .step:last-child {
    grid-column: auto;
  }

  .free-card {
    padding: 46px;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center;
  }

  .price-card {
    padding: 34px;
  }
}

@media (max-width: 389px) {
  .site-header,
  .hero,
  .section,
  .site-footer,
  .legal-shell {
    width: min(calc(100% - 24px), var(--page));
  }

  .header-note {
    max-width: 130px;
    justify-content: flex-end;
    line-height: 1.15;
    text-align: right;
  }

  .hero {
    padding-top: 12px;
    gap: 18px;
  }

  h1 {
    font-size: 2.15rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .message {
    max-width: 96%;
  }

  .legal-shell section {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* Website card checkout: isolated from the landing and legal-page styles. */
.pay-shell {
  width: min(calc(100% - 32px), 520px);
  margin: 34px auto 48px;
}

.pay-title {
  max-width: none;
  font-size: clamp(2.25rem, 9vw, 3.5rem);
}

.pay-intro {
  margin: 0 0 24px;
  color: var(--muted);
}

.pay-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.pay-plans {
  display: grid;
  gap: 12px;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.pay-legend {
  margin-bottom: 12px;
  font-weight: 750;
}

.pay-plan {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-solid);
  cursor: pointer;
}

.pay-plan:has(input:checked) {
  border-color: var(--blue);
  background: var(--blue-soft);
}

.pay-plan:has(input:disabled:not(:checked)) {
  opacity: 0.6;
  cursor: default;
}

.pay-plan input,
.pay-consent input {
  width: 20px;
  height: 20px;
  margin: 0;
  flex: 0 0 20px;
  accent-color: var(--blue);
}

.pay-plan-copy {
  display: grid;
  flex: 1;
  min-width: 0;
}

.pay-plan-copy > span {
  color: var(--muted);
  font-size: 12px;
}

.pay-price {
  font-size: 18px;
  font-weight: 800;
  white-space: nowrap;
}

.pay-note {
  margin: 14px 0 20px;
  color: var(--muted);
  font-size: 12px;
}

.pay-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.5;
  cursor: pointer;
}

.pay-consent a {
  color: var(--blue-deep);
  text-underline-offset: 3px;
}

.pay-submit {
  width: 100%;
  font-family: inherit;
  cursor: pointer;
}

.pay-submit:disabled {
  opacity: 0.5;
  cursor: default;
  transform: none;
}

.pay-provider {
  margin-bottom: 0;
  text-align: center;
}

.pay-error {
  margin: 0 0 18px;
  padding: 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 10px;
  background: var(--surface-soft);
  font-size: 14px;
}

.pay-back {
  display: block;
  width: fit-content;
  min-height: 44px;
  margin: 18px auto 0;
  padding: 10px 16px;
  color: var(--blue-deep);
  font-size: 14px;
  text-underline-offset: 4px;
}

@media (max-width: 400px) {
  .pay-shell { margin-top: 24px; }
  .pay-card { padding: 18px 14px; }
  .pay-plan { gap: 8px; }
}