:root {
  --bg: #ffffff;
  --surface: #f5f5f5;
  --text: #111111;
  --muted: #5a5a5a;
  --border: #d9d9d9;
  --accent: #111111;
  --radius: 14px;
  --container: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.brand {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  cursor: pointer;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.site-nav a {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  border: 1px solid var(--text);
  font-weight: 700;
  font-size: 0.93rem;
  padding: 0.72rem 1.1rem;
  transition: 140ms ease;
}

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

.btn-primary:hover {
  background: #000;
}

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

.btn-outline:hover {
  background: #f0f0f0;
}

.section {
  padding: 4.2rem 0;
}

.section-tight {
  padding: 2.5rem 0;
}

.hero h1,
h1 {
  font-size: clamp(1.85rem, 4vw, 3rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

h2 {
  font-size: clamp(1.45rem, 2.8vw, 2.2rem);
  line-height: 1.2;
  margin: 0 0 0.85rem;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.lead {
  font-size: 1.08rem;
}

.stack {
  display: grid;
  gap: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

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

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

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

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  background: #fff;
}

.card-muted {
  background: var(--surface);
}

.stat {
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 0.35rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 1.8rem;
  align-items: center;
}

.hero-visual {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  background: linear-gradient(180deg, #fff, #f1f1f1);
}

.hero-mock {
  border: 1px solid #cfcfcf;
  border-radius: 12px;
  padding: 1rem;
  background: #fff;
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.band {
  border: 1px solid var(--text);
  border-radius: var(--radius);
  padding: 1.4rem;
  background: #fff;
}

.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 2.15rem;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.45rem;
  height: 1.45rem;
  border-radius: 999px;
  border: 1px solid var(--text);
  display: grid;
  place-items: center;
  font-size: 0.82rem;
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  margin-top: 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 1.2rem;
}

.footer-title {
  font-weight: 700;
  margin-bottom: 0.7rem;
}

.footer-col a {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--muted);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-q {
  width: 100%;
  text-align: left;
  background: #fff;
  border: 0;
  padding: 1rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.faq-a {
  padding: 0 1rem 1rem;
  color: var(--muted);
  display: none;
}

.faq-item.open .faq-a {
  display: block;
}

.form-grid {
  display: grid;
  gap: 0.85rem;
}

label {
  font-weight: 600;
  font-size: 0.92rem;
}

input,
select,
textarea {
  width: 100%;
  margin-top: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem 0.75rem;
  font: inherit;
  color: var(--text);
  background: #fff;
}

.small {
  font-size: 0.88rem;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero,
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    display: none;
    flex-direction: column;
    align-items: flex-start;
  }

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

  .header-actions .btn-outline {
    display: none;
  }

  .hero,
  .grid-2,
  .grid-3,
  .grid-4,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3.2rem 0;
  }
}