html {
  scroll-behavior: smooth;
}

:root {
  --ink: #17151f;
  --ink-soft: #5f596d;
  --line: rgba(23, 21, 31, 0.12);
  --surface: #fbfaf7;
  --card: rgba(255, 255, 255, 0.78);
  --card-strong: #ffffff;
  --violet: #6f5cff;
  --blue: #2e9bff;
  --mint: #46c79e;
  --coral: #ff8066;
  --yellow: #f4c55a;
  --shadow: 0 24px 80px rgba(28, 25, 43, 0.14);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(135deg, rgba(111, 92, 255, 0.13), transparent 32%),
    linear-gradient(225deg, rgba(70, 199, 158, 0.16), transparent 34%),
    linear-gradient(180deg, #fffaf2 0%, #f8fbff 42%, #f5f0ff 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

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

main.page-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 18px 0 72px;
}

.topbar {
  position: sticky;
  top: 18px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 28px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 999px;
  background: rgba(255, 251, 244, 0.78);
  backdrop-filter: blur(22px);
  box-shadow: 0 10px 32px rgba(27, 24, 40, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background:
    linear-gradient(135deg, var(--violet), var(--blue) 52%, var(--mint));
  color: white;
  font-size: 0.82rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 10px 12px;
  color: var(--ink-soft);
  font-size: 0.94rem;
  font-weight: 650;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 750;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, #1a1830, var(--violet) 54%, var(--blue));
  color: #ffffff;
  box-shadow: 0 16px 36px rgba(111, 92, 255, 0.24);
}

.button--ghost {
  background: rgba(255, 255, 255, 0.62);
  border-color: var(--line);
}

.button--large {
  min-height: 56px;
  padding-inline: 22px;
}

.flash {
  margin: 0 0 18px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
}

.flash--notice {
  border-color: rgba(70, 199, 158, 0.32);
  background: rgba(225, 250, 242, 0.88);
}

.flash--alert {
  border-color: rgba(255, 128, 102, 0.34);
  background: rgba(255, 239, 234, 0.9);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 28px;
  align-items: center;
  min-height: 620px;
  padding: 42px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: calc(var(--radius-xl) + 8px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.8), rgba(245, 240, 255, 0.86)),
    radial-gradient(circle at 70% 20%, rgba(244, 197, 90, 0.34), transparent 34%);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.eyebrow {
  margin: 0 0 10px;
  color: #5947db;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1,
.section-grid h2,
.reassurance h2,
.signup-copy h2,
.confirmation h2 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  line-height: 0.98;
}

.hero__line {
  max-width: 46rem;
  margin: 14px 0 0;
  font-size: clamp(1.35rem, 2.6vw, 2.4rem);
  font-weight: 780;
  line-height: 1.08;
}

.hero__copy,
.text-stack p,
.feature p,
.timeline span,
.reassurance__points p,
.signup-copy p,
.confirmation p,
label,
input,
select {
  color: var(--ink-soft);
}

.hero__copy {
  max-width: 38rem;
  margin: 18px 0 0;
  font-size: 1.08rem;
}

.hero__meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0 0;
  padding: 10px 14px;
  border: 1px solid rgba(111, 92, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #3d336a;
  font-size: 0.95rem;
  font-weight: 650;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.hero__visual {
  display: grid;
  place-items: center;
}

.bot-shell {
  position: relative;
  display: grid;
  gap: 16px;
  width: min(100%, 420px);
  min-height: 480px;
  padding: 88px 28px 28px;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 42px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(237, 246, 255, 0.9)),
    radial-gradient(circle at 50% 0%, rgba(111, 92, 255, 0.24), transparent 38%);
  box-shadow: 0 28px 70px rgba(39, 40, 70, 0.18);
}

.bot-shell__antenna {
  position: absolute;
  top: 30px;
  left: calc(50% - 38px);
  width: 76px;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--coral), var(--yellow), var(--mint));
}

.bot-shell__face {
  display: flex;
  justify-content: center;
  gap: 38px;
  padding: 38px 24px;
  border-radius: 30px;
  background: #17151f;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.bot-shell__face span {
  width: 42px;
  height: 62px;
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff, #8df4d3);
  box-shadow: 0 0 24px rgba(141, 244, 211, 0.75);
}

.bot-shell__body,
.bot-shell__chip,
.proof-strip > div,
.feature,
.roadmap__phase,
.architecture-panel > div,
.reassurance,
.signup-shell,
.confirmation,
.error-list {
  padding: 22px;
  border: 1px solid rgba(23, 21, 31, 0.08);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: 0 14px 40px rgba(28, 25, 43, 0.08);
}

.bot-shell__body,
.bot-shell__chip {
  background: rgba(255, 255, 255, 0.72);
}

.bot-shell strong,
.bot-shell span,
.proof-strip strong,
.feature h3,
.timeline strong,
.architecture-panel strong,
.roadmap__phase strong {
  display: block;
}

.bot-shell span,
.architecture-panel span {
  color: var(--ink-soft);
}

.proof-strip,
.section-grid,
.reassurance,
.signup-shell {
  margin-top: 24px;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.section-grid {
  display: grid;
  gap: 18px;
}

.section-grid--split {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
}

.text-stack,
.timeline,
.architecture-panel,
.reassurance__points {
  display: grid;
  gap: 14px;
}

.text-stack p,
.feature p,
.timeline span,
.reassurance__points p,
.signup-copy p,
.confirmation p {
  margin: 0;
  font-size: 1rem;
}

.progress-grid,
.faq-grid,
.roadmap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.faq-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  position: relative;
  padding: 20px 20px 20px 28px;
  border: 1px solid rgba(23, 21, 31, 0.08);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.74);
}

.timeline li::before {
  content: "";
  position: absolute;
  inset: 18px auto 18px 14px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--violet), var(--coral), var(--yellow));
}

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

.roadmap__phase {
  min-height: 110px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(235, 250, 245, 0.76));
}

.roadmap__phase span {
  display: inline-flex;
  margin-bottom: 18px;
  color: #5947db;
  font-size: 0.84rem;
  font-weight: 850;
  letter-spacing: 0.14em;
}

.reassurance {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 16px;
  align-items: center;
}

.signup-shell {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(0, 1.15fr);
  gap: 20px;
  align-items: start;
}

.signup-form,
.confirmation {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 26px;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.9);
}

.error-list {
  color: #8c3b28;
  background: rgba(255, 241, 236, 0.92);
}

.error-list ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.signup-form label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.94rem;
  font-weight: 680;
}

.signup-form input:not([type="checkbox"]),
.signup-form select {
  width: 100%;
  border: 1px solid rgba(23, 21, 31, 0.14);
  border-radius: var(--radius-sm);
  background: rgba(251, 250, 247, 0.94);
  padding: 14px 16px;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.signup-form input:focus,
.signup-form select:focus {
  outline: none;
  border-color: rgba(111, 92, 255, 0.5);
  box-shadow: 0 0 0 4px rgba(111, 92, 255, 0.14);
  background: #ffffff;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(245, 241, 255, 0.82);
}

.consent input {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--violet);
}

.form-actions {
  display: flex;
  justify-content: flex-start;
  padding-top: 4px;
}

.field_with_errors input,
.field_with_errors select {
  border-color: rgba(255, 128, 102, 0.72);
  background: rgba(255, 245, 242, 0.96);
}

.confirmation {
  text-align: left;
}

.confirmation__mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(70, 199, 158, 0.16);
  color: #208c6a;
  font-size: 1.4rem;
  font-weight: 800;
}

@media (max-width: 980px) {
  .hero,
  .section-grid--split,
  .reassurance,
  .signup-shell {
    grid-template-columns: 1fr;
  }

  .proof-strip,
  .progress-grid,
  .faq-grid,
  .roadmap,
  .architecture-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  main.page-shell {
    width: min(100vw - 20px, 1180px);
    padding-top: 10px;
  }

  .topbar {
    position: static;
    flex-direction: column;
    align-items: stretch;
    border-radius: 24px;
  }

  .topbar__nav,
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero,
  .signup-form,
  .confirmation,
  .proof-strip > div,
  .feature,
  .roadmap__phase,
  .architecture-panel > div,
  .reassurance,
  .signup-shell {
    padding: 20px;
  }

  .hero {
    min-height: auto;
  }

  .proof-strip,
  .progress-grid,
  .faq-grid,
  .roadmap,
  .architecture-panel,
  .field-grid {
    grid-template-columns: 1fr;
  }

  .bot-shell {
    min-height: 420px;
    padding-inline: 18px;
  }

  .hero h1,
  .section-grid h2,
  .reassurance h2,
  .signup-copy h2,
  .confirmation h2 {
    font-size: clamp(2rem, 10vw, 3.35rem);
  }
}