:root {
  --bg: #f7f9fc;
  --surface: #ffffff;
  --surface-alt: #f0f3ff;
  --primary: #2230ff;
  --primary-dark: #1925cc;
  --text: #0e1633;
  --muted: rgba(14, 22, 51, 0.68);
  --border: rgba(21, 33, 68, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-lg: 0 42px 80px -48px rgba(16, 22, 64, 0.4);
  --shadow-md: 0 24px 40px -24px rgba(16, 22, 64, 0.25);
  --shadow-sm: 0 12px 24px -16px rgba(16, 22, 64, 0.2);
  --transition: 0.22s ease;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eff3ff 0%, #ffffff 32%, #f6f8ff 100%);
  line-height: 1.6;
}

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

h1, h2, h3 {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.2;
  margin: 0;
}

p {
  margin: 0;
}

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

a:hover,
a:focus-visible {
  text-decoration: underline;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1;
  padding: 14px 22px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn--secondary {
  background: rgba(34, 48, 255, 0.12);
  color: var(--primary);
  border-color: rgba(34, 48, 255, 0.24);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background: rgba(34, 48, 255, 0.18);
}

.btn--ghost {
  background: transparent;
  color: var(--primary);
  border-color: rgba(34, 48, 255, 0.2);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: rgba(34, 48, 255, 0.35);
  background: rgba(34, 48, 255, 0.08);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(34, 48, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 60px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.site-header__icon {
  width: 36px;
  height: 36px;
}

.site-header__title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  font-weight: 500;
}

.site-nav a {
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--primary);
}

.site-header__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.site-header__hint {
  font-size: 0.8rem;
  color: var(--muted);
}

main {
  display: flex;
  flex-direction: column;
  gap: 96px;
  padding: 72px 60px 120px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
  gap: 48px;
  padding: 72px 72px;
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--muted);
  margin-top: 20px;
}

.hero__highlights {
  margin: 28px 0 32px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.hero__highlights li {
  display: inline-flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: rgba(34, 48, 255, 0.08);
  color: var(--text);
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__microcopy {
  margin-top: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero__visual {
  justify-self: center;
  background: linear-gradient(180deg, rgba(34, 48, 255, 0.12) 0%, rgba(34, 48, 255, 0.05) 100%);
  padding: 32px;
  border-radius: 36px;
}

.section {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.section__heading {
  max-width: 720px;
}

.section__heading p {
  margin-top: 12px;
  color: var(--muted);
}

.demo {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 60px 64px;
  box-shadow: var(--shadow-md);
}

.demo__grid {
  display: grid;
  gap: 48px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.demo__form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.demo__label {
  font-weight: 600;
}

.demo__controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.demo__controls select {
  flex: 1;
}

.demo__counter {
  font-size: 0.85rem;
  color: var(--muted);
}

textarea,
select,
input[type="email"] {
  font: inherit;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 14px 16px;
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}

textarea:focus,
select:focus,
input[type="email"]:focus {
  border-color: rgba(34, 48, 255, 0.35);
  box-shadow: 0 0 0 4px rgba(34, 48, 255, 0.12);
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 180px;
}

.demo__note {
  font-size: 0.85rem;
  color: var(--muted);
}

.demo__result {
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.demo__status {
  min-height: 24px;
  font-weight: 600;
  color: var(--primary);
}

.demo__panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.demo__panel {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 20px;
  border: 1px solid rgba(34, 48, 255, 0.12);
  min-height: 160px;
}

.demo__panel h3 {
  margin-bottom: 12px;
  font-size: 1rem;
}

.demo__text {
  font-size: 0.95rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.demo__text--muted {
  color: var(--muted);
}

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

.demo__feedback {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--muted);
}

.feedback-btn {
  border: 1px solid transparent;
  background: rgba(34, 48, 255, 0.08);
  border-radius: 999px;
  padding: 8px 12px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.feedback-btn[aria-pressed="true"] {
  background: var(--primary);
  color: #fff;
}

.feedback-btn:hover,
.feedback-btn:focus-visible {
  border-color: rgba(34, 48, 255, 0.4);
}

.features__grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.feature-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid rgba(34, 48, 255, 0.12);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 16px;
}

.feature-card img {
  width: 56px;
  height: 56px;
}

.feature-card__usecase {
  font-size: 0.9rem;
  color: var(--muted);
}

.how {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-md);
}

.how__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.how__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: rgba(34, 48, 255, 0.1);
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 14px;
}

.templates__grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.template-card {
  border-radius: var(--radius-md);
  border: 1px solid rgba(34, 48, 255, 0.18);
  background: rgba(34, 48, 255, 0.05);
  padding: 20px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.template-card:hover,
.template-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(34, 48, 255, 0.35);
  box-shadow: var(--shadow-sm);
}

.integrations__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.integrations__list li {
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(34, 48, 255, 0.08);
  font-weight: 600;
}

.trust__grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.trust__quote {
  background: var(--surface);
  padding: 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(34, 48, 255, 0.12);
  font-style: normal;
  display: grid;
  gap: 12px;
}

.trust__quote cite {
  font-size: 0.9rem;
  color: var(--muted);
}

.trust__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-self: center;
}

.metric-chip {
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(34, 48, 255, 0.1);
  font-weight: 600;
}

.technical {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-md);
}

.technical__list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 12px;
}

.technical__list li {
  color: var(--text);
}

.faq {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-md);
}

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

details {
  border-radius: var(--radius-md);
  border: 1px solid rgba(34, 48, 255, 0.18);
  background: rgba(34, 48, 255, 0.04);
  padding: 20px 24px;
  transition: border-color var(--transition), background var(--transition);
}

details[open] {
  background: rgba(34, 48, 255, 0.09);
  border-color: rgba(34, 48, 255, 0.35);
}

summary {
  font-weight: 600;
  cursor: pointer;
}

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

details p {
  margin-top: 16px;
  color: var(--muted);
}

.cta {
  background: linear-gradient(94deg, rgba(34, 48, 255, 0.95) 0%, rgba(34, 48, 255, 0.74) 100%);
  border-radius: var(--radius-lg);
  padding: 56px 72px;
  color: #fff;
  text-align: center;
}

.cta__actions {
  margin-top: 28px;
  display: inline-flex;
  gap: 16px;
  flex-wrap: wrap;
}

.cta .btn--secondary {
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
}

.site-footer {
  border-top: 1px solid rgba(34, 48, 255, 0.08);
  background: rgba(255, 255, 255, 0.95);
  padding: 48px 60px 32px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.site-footer__form {
  display: flex;
  gap: 12px;
  margin-top: 18px;
}

.site-footer__form input {
  flex: 1;
}

.site-footer__nav {
  display: grid;
  gap: 12px;
  align-content: start;
}

.site-footer__meta {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}

@media (max-width: 960px) {
  .site-header {
    padding: 16px 24px;
    flex-wrap: wrap;
    gap: 18px;
  }

  .site-header__actions {
    align-items: flex-start;
  }

  main {
    padding: 60px 24px 100px;
    gap: 72px;
  }

  .hero {
    padding: 56px 40px;
  }

  .demo {
    padding: 48px 32px;
  }

  .how, .technical, .faq {
    padding: 40px 32px;
  }

  .cta {
    padding: 48px 40px;
  }

  .site-footer {
    padding: 40px 24px 28px;
  }
}

@media (max-width: 640px) {
  .site-nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    padding: 40px 24px;
  }

  .hero__highlights li {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .demo__counter {
    align-self: flex-end;
  }

  .demo__actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .site-footer__form {
    flex-direction: column;
  }

  .cta__actions {
    width: 100%;
    justify-content: center;
  }
}