:root {
  --background: #f3f7fb;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-dark: #0f1b2d;
  --surface-dark-alt: #15253b;
  --text: #0f1723;
  --muted: #5f6f86;
  --line: rgba(15, 23, 35, 0.1);
  --line-strong: rgba(15, 23, 35, 0.16);
  --primary: #0f5cc0;
  --primary-dark: #0a4693;
  --primary-soft: rgba(15, 92, 192, 0.12);
  --success: #0e8d63;
  --shadow: 0 20px 60px rgba(15, 28, 52, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(15, 92, 192, 0.12), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, var(--background) 56%, #eef3f8 100%);
  color: var(--text);
}

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

button,
input,
textarea {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(248, 251, 255, 0.82);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.topbar.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 8px 24px rgba(15, 28, 52, 0.06);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 18px;
}

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

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

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), #69a4ff);
  color: #fff;
  font-weight: 800;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong {
  font-size: 1rem;
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.83rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.language-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
}

.lang-button {
  min-width: 44px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.lang-button.is-active {
  background: var(--primary);
  color: #fff;
}

.nav a {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

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

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff !important;
  box-shadow: 0 12px 28px rgba(15, 92, 192, 0.28);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  padding: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  border-radius: 999px;
  background: var(--text);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 64px 0 48px;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(15, 23, 35, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 35, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 80%);
  opacity: 0.55;
  pointer-events: none;
}

.hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 32px;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.feature-card,
.tech-panel,
.pricing-card,
.process-card,
.mini-card,
.faq-card,
.cta-box,
.signal-card,
.panel-card,
.proof-grid article {
  backdrop-filter: blur(14px);
}

.hero-copy {
  padding: 24px 0 18px;
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.eyebrow span,
.section-label,
.pricing-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(15, 23, 35, 0.08);
  color: var(--primary-dark);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero-kicker {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.hero h1,
.section h2,
.cta-box h2 {
  margin: 0;
  letter-spacing: -0.04em;
  line-height: 0.98;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(3rem, 7vw, 5.8rem);
}

.hero h1 span {
  display: block;
  color: var(--primary);
}

.hero h1 .hero-line {
  color: var(--text);
}

.hero-text,
.section-intro p,
.feature-card p,
.pricing-card li,
.process-card p,
.mini-card p,
.faq-card p,
.footer-text,
.boundary-list p,
.stack-list span,
.proof-grid span,
.cta-box p {
  color: var(--muted);
  line-height: 1.72;
  font-size: 1rem;
}

.hero-text {
  max-width: 60ch;
  margin: 22px 0 0;
  font-size: 1.06rem;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--primary), #1a7cff);
  color: #fff;
  box-shadow: 0 16px 34px rgba(15, 92, 192, 0.28);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
}

.hero-notes,
.check-list,
.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-notes {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.hero-notes li,
.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--text);
  line-height: 1.6;
}

.hero-notes li::before,
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.48rem;
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--success), #33c998);
  box-shadow: 0 0 0 4px rgba(14, 141, 99, 0.12);
}

.hero-panel {
  display: grid;
  gap: 18px;
}

.signal-card,
.panel-card,
.feature-card,
.tech-panel,
.pricing-card,
.mini-card,
.faq-card,
.proof-grid article {
  border: 1px solid rgba(15, 23, 35, 0.08);
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.signal-card,
.panel-card,
.tech-panel,
.pricing-card,
.mini-card,
.faq-card {
  padding: 24px;
}

.signal-label,
.panel-title,
.pricing-tier {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.signal-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.signal-metrics article {
  padding: 18px 14px;
  border-radius: var(--radius-sm);
  background: rgba(15, 92, 192, 0.07);
}

.signal-metrics strong {
  display: block;
  font-size: 1.35rem;
  margin-bottom: 6px;
}

.signal-metrics span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.proof-strip {
  padding: 8px 0 14px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.proof-grid article {
  padding: 22px 24px;
}

.proof-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.05rem;
}

.section {
  padding: 88px 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.42);
  border-top: 1px solid rgba(15, 23, 35, 0.05);
  border-bottom: 1px solid rgba(15, 23, 35, 0.05);
}

.section-dark {
  background:
    radial-gradient(circle at top left, rgba(63, 133, 255, 0.24), transparent 35%),
    linear-gradient(180deg, var(--surface-dark) 0%, var(--surface-dark-alt) 100%);
}

.section-intro {
  max-width: 840px;
  margin-bottom: 34px;
}

.section h2,
.cta-box h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  max-width: 16ch;
}

.section-intro p {
  margin-top: 18px;
}

.card-grid.three-up,
.pricing-grid,
.process-grid,
.faq-list {
  display: grid;
  gap: 20px;
}

.three-up,
.pricing-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  padding: 28px;
}

.feature-card h3,
.tech-panel h3,
.pricing-card strong,
.process-card h3,
.mini-card h3,
.faq-card h3,
.boundary-list strong,
.scope-list h3 {
  margin: 0 0 14px;
  font-size: 1.32rem;
  line-height: 1.25;
}

.split-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  align-items: start;
}

.scope-list {
  display: grid;
  gap: 20px;
}

.scope-list article,
.boundary-list article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.65);
}

.tech-panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(242, 247, 255, 0.94)),
    var(--surface);
}

.stack-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.stack-list li {
  display: grid;
  gap: 6px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.stack-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.pricing-card-featured {
  background:
    linear-gradient(180deg, rgba(15, 92, 192, 0.08), rgba(255, 255, 255, 0.96)),
    var(--surface-strong);
  border-color: rgba(15, 92, 192, 0.18);
  transform: translateY(-6px);
}

.pricing-head strong {
  display: block;
  margin-top: 12px;
  font-size: 2rem;
  letter-spacing: -0.04em;
}

.pricing-head span {
  color: var(--muted);
}

.pricing-badge {
  position: absolute;
  top: 20px;
  right: 20px;
}

.dark-intro h2,
.dark-intro p,
.process-card h3,
.process-card p,
.process-card span {
  color: #f3f7ff;
}

.dark-intro .section-label {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
  color: #bfd7ff;
}

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

.process-card {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: none;
}

.process-card span {
  display: inline-flex;
  margin-bottom: 18px;
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  opacity: 0.72;
}

.fit-grid,
.boundary-list {
  display: grid;
  gap: 18px;
}

.mini-card {
  padding: 24px;
}

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

.cta-section {
  padding-top: 22px;
  padding-bottom: 96px;
}

.cta-box {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: 28px;
  padding: 34px;
  border: 1px solid rgba(15, 92, 192, 0.12);
  border-radius: 32px;
  background:
    linear-gradient(135deg, rgba(15, 92, 192, 0.08), rgba(255, 255, 255, 0.92)),
    var(--surface-strong);
  box-shadow: var(--shadow);
}

.cta-actions {
  align-content: center;
}

.footer {
  padding: 0 0 52px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.footer-brand {
  margin-bottom: 16px;
}

.footer h3 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.footer-list {
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--text);
}

@media (max-width: 1100px) {
  .hero-layout,
  .split-layout,
  .cta-box,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .proof-grid,
  .three-up,
  .pricing-grid,
  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .faq-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .menu-toggle {
    display: inline-block;
  }

  .nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow);
  }

  .nav.is-open {
    display: flex;
  }

  .nav-cta {
    text-align: center;
  }

  .topbar-inner {
    flex-wrap: wrap;
  }

  .proof-grid,
  .three-up,
  .pricing-grid,
  .process-grid,
  .signal-metrics {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 32px;
  }

  .section {
    padding: 72px 0;
  }

  .hero h1,
  .section h2,
  .cta-box h2 {
    max-width: none;
  }

  .brand-copy span {
    display: none;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .signal-card,
  .panel-card,
  .feature-card,
  .tech-panel,
  .pricing-card,
  .process-card,
  .mini-card,
  .faq-card,
  .cta-box,
  .scope-list article,
  .boundary-list article,
  .proof-grid article {
    padding: 20px;
  }

  .button {
    width: 100%;
  }

  .hero-actions,
  .cta-actions {
    flex-direction: column;
  }
}