@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@500;600;700&family=Plus+Jakarta+Sans:ital,wght@0,400..800;1,400..700&display=swap');

:root {
  --ink: #1A103C;
  --ink-soft: #2D2250;
  --muted: #6B6490;
  --line: #EDE8F5;
  --line-strong: #D8CEFF;
  --violet: #6B35E8;
  --violet-dark: #5224B5;
  --accent: #F5B731;
  --green: #059669;
  --red: #e11d48;
  --soft: #FAFAFF;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 4%, rgba(107, 53, 232, 0.08) 0%, transparent 36%),
    radial-gradient(circle at 88% 12%, rgba(245, 183, 49, 0.08) 0%, transparent 34%),
    linear-gradient(180deg, #FAFAFF 0%, #F3EEFF 100%);
  color: var(--ink);
  font-family: "Plus Jakarta Sans", Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.shell {
  width: min(1180px, calc(100% - 48px));
  margin: auto;
  padding: 28px 0 64px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line);
  box-shadow: 0 4px 14px rgba(26, 16, 60, 0.04);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #6B35E8 0%, #5224B5 100%);
  border: 1px solid rgba(245, 183, 49, 0.45);
  box-shadow: 0 8px 20px rgba(107, 53, 232, 0.28);
  color: #F5B731;
  font-weight: 900;
}

.back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-soft);
  text-decoration: none;
  transition: all 0.16s ease;
}

.back:hover {
  border-color: var(--violet);
  color: var(--violet);
  background: #F3EEFF;
}

.hero {
  padding: 52px 0 36px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(290px, 0.7fr);
  gap: 42px;
  align-items: end;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  border-radius: 999px;
  background: #F3EEFF;
  border: 1px solid rgba(107, 53, 232, 0.2);
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.1em;
  font-weight: 800;
  color: var(--violet);
  font-family: 'JetBrains Mono', monospace;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--ink);
}

h1 em {
  font-style: normal;
  background: linear-gradient(135deg, #6B35E8 0%, #8B5CF6 48%, #D97706 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
  color: var(--ink);
}

.lead {
  max-width: 720px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.hero aside {
  padding: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff 0%, #F3EEFF 100%);
  box-shadow: 0 14px 36px rgba(107, 53, 232, 0.08);
}

.hero aside b {
  font-size: 15px;
  font-weight: 800;
  color: var(--ink);
}

.hero aside ul {
  margin: 12px 0 0;
  padding-left: 18px;
}

.hero aside li {
  margin: 8px 0;
  color: var(--ink-soft);
  font-size: 13.5px;
}

.hero-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 10px;
  padding: 12px 18px;
  font: inherit;
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.16s ease;
}

.primary {
  background: linear-gradient(135deg, #6B35E8 0%, #5224B5 100%);
  box-shadow: 0 10px 24px rgba(107, 53, 232, 0.28);
  color: #fff;
}

.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(107, 53, 232, 0.38);
}

.ghost {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(26, 16, 60, 0.04);
}

.ghost:hover {
  border-color: var(--violet);
  background: #F3EEFF;
  color: var(--violet);
}

.facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(26, 16, 60, 0.04);
}

.facts div {
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}

.facts div:last-child {
  border: 0;
}

.facts strong {
  display: block;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--ink);
  font-family: 'JetBrains Mono', 'Plus Jakarta Sans', sans-serif;
}

.facts span {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
}

.architecture,
.flow,
.live-check,
.after {
  margin-top: 56px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 20px;
}

.tool-grid article,
.steps article,
.after article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(26, 16, 60, 0.04);
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.tool-grid article:hover,
.steps article:hover,
.after article:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: 0 14px 32px rgba(26, 16, 60, 0.08);
}

.tool-grid i {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 22px;
  border-radius: 10px;
  background: #F3EEFF;
  border: 1px solid rgba(107, 53, 232, 0.18);
  color: var(--violet);
  font-style: normal;
  font-weight: 800;
}

.tool-grid b {
  display: block;
  font-size: 15.5px;
  font-weight: 800;
  color: var(--ink);
}

.tool-grid p,
.steps p,
.after p,
.live-check p {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 20px;
}

.steps span {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: #F3EEFF;
  color: var(--violet);
  font-size: 11px;
  font-weight: 800;
  font-family: 'JetBrains Mono', monospace;
}

.steps h3 {
  margin: 18px 0 8px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--ink);
}

.steps a,
.after a,
details a {
  color: var(--violet);
  font-weight: 700;
}

.live-check {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 28px;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: linear-gradient(135deg, #ffffff 0%, #F3EEFF 100%);
  box-shadow: 0 12px 32px rgba(107, 53, 232, 0.06);
}

.live-check .check-result {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.check-row i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #9CA3AF;
  box-shadow: 0 0 0 4px #F3EEFF;
}

.check-row i.ok {
  background: var(--green);
  box-shadow: 0 0 0 4px #ECFDF5;
}

.check-row i.bad {
  background: var(--red);
  box-shadow: 0 0 0 4px #ffe4e6;
}

.check-row span {
  display: flex;
  flex-direction: column;
}

.check-row b {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--ink);
}

.check-row small {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.summary {
  grid-column: 1 / -1;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 13.5px;
  font-weight: 700;
}

.summary.ok {
  background: #ECFDF5;
  border: 1px solid #6EE7B7;
  color: #059669;
}

.summary.bad {
  background: #fff1f2;
  border: 1px solid #fecdd3;
  color: #be123c;
}

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

.after h2 {
  font-size: 20px;
}

.after .button {
  margin-top: 10px;
}

details summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--violet);
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 12.5px;
  padding: 48px 0 0;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .facts,
  .tool-grid,
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .after,
  .live-check,
  .live-check .check-result {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(100% - 28px, 1180px);
  }
  .hero {
    padding-top: 36px;
    gap: 20px;
  }
  .facts,
  .tool-grid,
  .steps {
    grid-template-columns: 1fr;
  }
  .facts div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .hero-actions,
  .hero-actions .button,
  .live-check > button {
    width: 100%;
  }
  .live-check {
    padding: 20px;
  }
}