:root {
  --text-main: #1b253f;
  --text-body: #89929b;
  --accent: #e08370;
  --line: #edf0f4;
  --line-soft: #f4f5f7;
  --panel: #ffffff;
  --bg: #ffffff;
  --success: #2d7d46;
  --error: #b64747;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Roboto", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-body);
  background: var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.5s cubic-bezier(0.25, 1, 0.35, 1);
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-family: "Poppins", serif;
  font-weight: 400;
  line-height: 1.5em;
  color: var(--text-main);
}

p {
  margin: 0;
}

.container {
  width: min(1140px, calc(100% - 30px));
  margin: 0 auto;
}

.topbar {
  border-bottom: 1px solid var(--line-soft);
}

.topbar__inner {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  min-height: 40px;
}

.topbar__lang {
  display: flex;
  gap: 18px;
  font-family: "Poppins", serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-main);
  text-transform: uppercase;
}

.site-header {
  position: relative;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid rgba(237, 240, 244, 0.95);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 96px;
  padding: 16px 0;
}

.site-header__logo img {
  width: 220px;
}

.menu-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.menu-nav a {
  position: relative;
  display: inline-block;
  padding: 24px 0;
  font-family: "Poppins", serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-main);
  text-transform: uppercase;
}

.menu-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 18px;
  width: 0;
  border-top: 3px solid var(--text-main);
  transition: width 0.35s ease;
}

.menu-nav a:hover::after,
.menu-nav a[aria-current="page"]::after {
  width: 100%;
}

.top-section {
  padding: 54px 0 24px;
}

.section-intro {
  width: min(840px, 100%);
  margin: 0 auto 30px;
  text-align: center;
}

.section-intro__sup {
  margin-bottom: 8px;
  font-family: "Poppins", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-intro__title {
  font-size: clamp(32px, 4.8vw, 52px);
}

.section-intro__text {
  margin-top: 14px;
  font-size: 17px;
  line-height: 1.8;
}

.divider {
  width: 92px;
  height: 3px;
  margin: 18px auto 0;
  background: var(--text-main);
}

.content-section {
  padding-bottom: 34px;
}

.card {
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.forum-feature {
  width: min(960px, 100%);
  margin: 0 auto 18px;
  padding: 0;
  overflow: hidden;
}

.forum-feature__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
}

.forum-feature__content {
  padding: 30px;
  display: grid;
  gap: 14px;
}

.forum-feature__eyebrow {
  font-family: "Poppins", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.forum-feature__title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.2;
}

.forum-feature__meta {
  display: grid;
  gap: 8px;
  color: var(--text-main);
  font-family: "Poppins", serif;
}

.forum-feature__note {
  font-size: 17px;
  line-height: 1.8;
}

.forum-feature__side {
  padding: 30px;
  border-left: 1px solid var(--line);
  background: #fbfcfe;
  display: grid;
  gap: 12px;
  align-content: start;
}

.forum-feature__label {
  font-family: "Poppins", serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-main);
}

.forum-feature__side strong {
  color: var(--text-main);
}

.status {
  margin: 0 auto 18px;
  width: min(960px, 100%);
  padding: 14px 16px;
  border: 1px solid var(--line);
  color: var(--text-main);
  background: #fbfcfe;
  display: none;
}

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

.status.is-error {
  color: var(--error);
  border-color: rgba(182, 71, 71, 0.28);
  background: rgba(182, 71, 71, 0.05);
}

.status.is-success {
  color: var(--success);
  border-color: rgba(45, 125, 70, 0.28);
  background: rgba(45, 125, 70, 0.05);
}

.payment-form {
  display: grid;
  gap: 22px;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  font-family: "Poppins", serif;
  font-size: 14px;
  color: var(--text-main);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.field input {
  width: 100%;
  padding: 16px 18px;
  border: 1px solid #d9e0e7;
  font: inherit;
  color: var(--text-main);
  outline: none;
}

.field input:focus {
  border-color: var(--accent);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.payment-meta {
  justify-content: space-between;
  color: var(--text-main);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 24px;
  border: 2px solid var(--accent);
  background: var(--accent);
  font-family: "Poppins", serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
  cursor: pointer;
}

.button:hover {
  background: transparent;
  color: var(--accent);
}

.button:disabled {
  opacity: 0.6;
  cursor: wait;
}

.button.button-secondary {
  background: transparent;
  color: var(--text-main);
  border-color: var(--text-main);
}

.button.button-secondary:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.payment-toolbar {
  width: min(960px, 100%);
  margin: 0 auto 18px;
  display: grid;
  gap: 14px;
}

.copy-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.copy-row input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #d9e0e7;
  font: inherit;
  color: var(--text-main);
  background: #fff;
}

.payment-frame iframe {
  display: block;
  width: 100%;
  min-height: 860px;
  border: 0;
  background: #fff;
}

.offer-section {
  width: min(900px, 100%);
  margin: 0 auto;
  padding: 34px 0 90px;
  text-align: center;
}

.offer-text {
  font-size: clamp(22px, 2.7vw, 28px);
  line-height: 1.45;
  color: #777f89;
}

.offer-text a {
  color: var(--text-main);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.result-page {
  padding: 64px 0 96px;
}

.result-box {
  width: min(760px, 100%);
  margin: 0 auto;
  text-align: center;
  border: 1px solid var(--line);
  padding: 42px 28px;
}

.result-box p {
  margin-top: 12px;
  font-size: 18px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--text-main);
}

.site-footer__copy {
  font-size: 14px;
  text-align: center;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

@media (max-width: 1024px) {
  .site-header__inner {
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    padding: 10px 0 14px;
  }

  .menu-nav {
    gap: 24px;
    flex-wrap: wrap;
  }

  .menu-nav a {
    padding: 10px 0;
  }

  .menu-nav a::after {
    bottom: 4px;
  }
}

@media (max-width: 767px) {
  .top-section {
    padding-top: 30px;
  }

  .site-header__logo img {
    width: 190px;
  }

  .topbar__inner {
    justify-content: center;
  }

  .menu-nav {
    gap: 16px;
  }

  .menu-nav a {
    font-size: 11px;
    letter-spacing: 0.08em;
  }

  .section-intro__text {
    font-size: 16px;
    line-height: 1.6;
  }

  .card {
    padding: 12px;
  }

  .forum-feature__grid {
    grid-template-columns: 1fr;
  }

  .forum-feature__content,
  .forum-feature__side {
    padding: 18px;
  }

  .forum-feature__side {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .copy-row {
    grid-template-columns: 1fr;
  }

  .payment-meta {
    flex-direction: column;
    align-items: flex-start;
  }

  .payment-frame iframe {
    min-height: 760px;
  }

  .offer-section {
    padding-bottom: 56px;
  }

  .offer-text {
    font-size: 18px;
    line-height: 1.6;
  }
}