:root {
  --bg: #fafbfc;
  --bg-alt: #f3f5f8;
  --surface: #ffffff;
  --text: #1a2233;
  --text-muted: #667085;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --border: #e5e7eb;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.05);
  --radius: 10px;
  --radius-lg: 12px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "DM Sans", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-inner {
  min-height: 72px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}

.logo-mark {
  position: relative;
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 8px;
}

.logo-mark::after {
  content: "";
  position: absolute;
  top: 5px;
  left: 5px;
  width: 18px;
  height: 18px;
  border: 2.5px solid #ffffff;
  border-radius: 3px;
  transform: rotate(45deg);
}

.logo-mark::before {
  content: "";
  position: absolute;
  right: 5px;
  bottom: 5px;
  width: 10px;
  height: 10px;
  background: #ffffff;
  border-radius: 2px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.logo-text span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
}

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

.nav-cta {
  padding: 10px 22px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff !important;
  font-weight: 600;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: var(--accent-hover);
}

.section {
  padding: 112px 0;
}

.hero {
  padding: 148px 0 96px;
  text-align: center;
}

.hero-inner {
  max-width: 840px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
}

.hero-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

h1,
h2 {
  margin: 0;
  font-family: "Instrument Serif", serif;
  font-weight: 400;
  letter-spacing: -0.03em;
}

h1 {
  max-width: 780px;
  margin: 28px auto 24px;
  font-size: clamp(44px, 6vw, 72px);
  line-height: 1.08;
}

h1 em {
  color: var(--accent);
  font-style: italic;
}

.hero p,
.section-heading p,
.feature-card p,
.step p,
.use-case-card p,
.cta-card p,
.footer-brand p,
.form-note {
  color: var(--text-muted);
}

.hero p {
  max-width: 600px;
  margin: 0 auto 40px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

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

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.12);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  box-shadow: var(--shadow-sm);
}

.social-proof {
  padding: 52px 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.social-proof-inner {
  text-align: center;
}

.social-label,
.section-label {
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.social-text {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px 26px;
  color: var(--text-muted);
  font-size: 15px;
}

.social-text span {
  position: relative;
}

.social-text span:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -14px;
  top: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #cbd5e1;
  transform: translateY(-50%);
}

.section-heading {
  max-width: 640px;
  margin-bottom: 56px;
}

h2 {
  font-size: clamp(34px, 4vw, 50px);
  line-height: 1.12;
}

.section-heading p {
  margin: 18px 0 0;
  font-size: 17px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.feature-card,
.use-case-card,
.cta-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.feature-card {
  padding: 32px 28px;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 22px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.feature-card h3,
.step h3,
.use-case-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.feature-card p,
.step p,
.use-case-card p {
  margin: 0;
  font-size: 14px;
}

.how-it-works {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 34px;
}

.step-number {
  margin-bottom: 18px;
  color: #bfdbfe;
  font-family: "Instrument Serif", serif;
  font-size: 52px;
  line-height: 1;
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.use-case-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 28px;
  background: var(--bg-alt);
}

.use-case-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

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

.cta-card {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 40px;
  box-shadow: var(--shadow-md);
}

.cta-card h2 {
  margin-bottom: 16px;
  font-size: 38px;
}

.cta-card p {
  max-width: 560px;
  margin: 0 auto 30px;
  font-size: 16px;
}

.cta-form {
  display: flex;
  gap: 12px;
  max-width: 460px;
  margin: 0 auto;
}

.cta-form input {
  flex: 1;
  min-width: 0;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  outline: none;
}

.cta-form input:focus {
  border-color: #bfdbfe;
}

.cta-form button {
  padding: 14px 24px;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #ffffff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.cta-form button:hover,
.cta-form button:focus-visible {
  background: var(--accent-hover);
}

.form-note {
  margin: 14px 0 0;
  font-size: 14px;
}

.site-footer {
  padding: 40px 0 48px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.footer-brand p {
  max-width: 340px;
  margin: 14px 0 0;
  font-size: 14px;
}

.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  color: var(--text-muted);
  font-size: 14px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay {
  transition-delay: 0.08s;
}

.reveal-delay-2 {
  transition-delay: 0.16s;
}

.reveal-delay-3 {
  transition-delay: 0.24s;
}

@media (max-width: 960px) {
  .nav-links {
    gap: 18px;
  }

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

  .use-case-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .nav-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-inner {
    padding: 14px 0;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero {
    padding: 128px 0 84px;
  }

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

  .btn,
  .cta-form button {
    width: 100%;
  }

  .footer-meta {
    align-items: flex-start;
  }

  .social-text span::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}