:root {
  --bg: #f4f7ff;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --line: #dfe7ff;
  --text: #0f172a;
  --muted: #4b587c;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --accent: #0ea5e9;
  --success: #059669;
  --shadow: 0 18px 45px rgba(27, 44, 89, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Manrope", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 700px at -10% -30%, rgba(79, 70, 229, 0.12), transparent 70%),
    radial-gradient(1000px 650px at 110% -20%, rgba(14, 165, 233, 0.12), transparent 70%),
    var(--bg);
  line-height: 1.55;
}

.bg-orb {
  position: fixed;
  width: 460px;
  height: 460px;
  border-radius: 999px;
  filter: blur(90px);
  opacity: 0.24;
  pointer-events: none;
  z-index: -1;
}

.bg-orb-a {
  background: #8b5cf6;
  top: -120px;
  left: -120px;
}

.bg-orb-b {
  background: #22d3ee;
  top: -160px;
  right: -80px;
}

.container {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(244, 247, 255, 0.75);
  border-bottom: 1px solid rgba(223, 231, 255, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 70px;
}

.brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--text);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.94rem;
}

.nav a:hover {
  color: var(--text);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  overflow: hidden;
  background: #fff;
}

.lang-btn {
  border: 0;
  border-radius: 0;
  margin: 0;
  width: auto;
  padding: 0.45rem 0.65rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.lang-btn.active {
  background: #eef2ff;
  color: var(--primary);
}

.header-link {
  text-decoration: none;
  font-weight: 600;
  color: var(--primary);
  padding: 0.6rem 0.5rem;
}

.header-link:hover {
  text-decoration: underline;
}

.header-cta {
  text-decoration: none;
  font-weight: 700;
  color: #fff;
  background: var(--primary);
  padding: 0.6rem 0.95rem;
  border-radius: 0.7rem;
}

.header-cta:hover {
  background: var(--primary-hover);
}

.hero {
  padding: 4.2rem 0 2rem;
}

.tag {
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--success);
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: 999px;
  padding: 0.32rem 0.72rem;
  margin: 0;
}

h1 {
  margin: 1rem 0 0.8rem;
  max-width: 19ch;
  font-size: clamp(2rem, 5.2vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero-copy {
  margin: 0;
  max-width: 62ch;
  font-size: 1.05rem;
  color: var(--muted);
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 700;
  padding: 0.72rem 1.08rem;
  border-radius: 0.72rem;
  border: 1px solid transparent;
  transition: 0.16s ease;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: #fff;
  border-color: var(--line);
  color: var(--text);
}

.btn-secondary:hover {
  border-color: #cbd5ff;
  background: #f8faff;
}

.stat-grid {
  margin-top: 1.6rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.stat-grid article {
  padding: 0.9rem;
  border-radius: 0.85rem;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.stat-grid strong {
  display: block;
  font-size: 0.96rem;
  color: var(--primary);
  font-family: "JetBrains Mono", monospace;
}

.stat-grid span {
  color: var(--muted);
  font-size: 0.87rem;
}

.layout {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 1rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
  padding: 1.2rem;
}

.card-head h2 {
  margin: 0;
  font-size: 1.38rem;
  letter-spacing: -0.02em;
}

.card-head p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.form-grid {
  margin-top: 0.95rem;
  display: grid;
  gap: 0.8rem;
}

label {
  display: block;
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 600;
}

input,
select,
button {
  width: 100%;
  margin-top: 0.34rem;
  font: inherit;
  border-radius: 0.72rem;
  border: 1px solid #d6dff8;
  background: #f9fbff;
  padding: 0.7rem 0.78rem;
}

input::placeholder {
  color: #8090b5;
}

input:focus,
select:focus,
button:focus {
  outline: 2px solid #93c5fd;
  outline-offset: 2px;
  border-color: #93c5fd;
}

button {
  margin-top: 1rem;
  border: 0;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.04);
}

#demo-output,
.code-card pre {
  margin: 0.95rem 0 0;
  background: #0f172a;
  color: #e7ecff;
  border-radius: 0.78rem;
  border: 1px solid #1f2a48;
  padding: 0.9rem;
  max-height: 260px;
  overflow: auto;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.84rem;
}

.endpoint {
  display: inline-flex;
  margin-top: 1rem;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  background: #eef2ff;
  color: #4338ca;
  border: 1px solid #c7d2fe;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
}

.integration-list {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.integration-list span {
  border: 1px solid var(--line);
  background: #f8faff;
  border-radius: 999px;
  padding: 0.28rem 0.62rem;
  font-size: 0.82rem;
  color: #3d4a70;
}

.feature-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.feature-card {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.feature-card h3 {
  margin: 0;
  font-size: 1.02rem;
}

.feature-card p {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.plugin-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.plugin-card {
  display: block;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 0.88rem;
  padding: 1.2rem;
  transition: border-color 0.16s, box-shadow 0.16s;
  cursor: default;
}

.plugin-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.08);
}

.plugin-card strong {
  font-size: 1.1rem;
}

.plugin-badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  background: #ede9fe;
  color: #6d28d9;
  vertical-align: middle;
}

.plugin-card p {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.pricing-wrap {
  margin-top: 1rem;
}

.pricing-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.price-card {
  border: 1px solid #d8e0fb;
  border-radius: 0.88rem;
  background: #f8faff;
  padding: 0.95rem;
}

.price-card h3 {
  margin: 0;
}

.price {
  margin: 0.45rem 0;
  font-size: 1.56rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.price span {
  font-size: 0.84rem;
  color: var(--muted);
  font-weight: 500;
}

.price-card p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.price-card.highlight {
  background: linear-gradient(180deg, #eef2ff, #e3ebff);
  border-color: #a5b4fc;
}

.footer {
  padding: 1.6rem 0 2.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.footer a:hover {
  color: var(--text);
}

.register-page,
.legal-page,
.docs-page {
  padding: 2rem 0;
}

.register-card {
  max-width: 480px;
  margin: 0 auto;
}

.register-card h1 {
  font-size: 1.6rem;
  max-width: none;
}

.legal-card {
  max-width: 780px;
  margin: 0 auto;
}

.legal-card h1 {
  font-size: 1.6rem;
  max-width: none;
}

.legal-card h2 {
  margin-top: 1.5rem;
}

.legal-card ul {
  padding-left: 1.2rem;
}

.legal-card li {
  margin-bottom: 0.3rem;
}

.reg-result {
  margin-top: 1rem;
}

.reg-result pre {
  background: #0f172a;
  color: #7ef2c6;
  padding: 0.8rem;
  border-radius: 0.72rem;
  font-family: "JetBrains Mono", monospace;
  word-break: break-all;
}

.reg-error {
  margin-top: 0.8rem;
  padding: 0.7rem;
  border-radius: 0.72rem;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  font-size: 0.9rem;
}

@media (max-width: 1040px) {
  .layout {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 760px) {
  .nav {
    display: none;
  }

  .hero {
    padding-top: 2.6rem;
  }

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

  .feature-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    height: 64px;
  }
}