:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --line: #e8e8e8;
  --panel: #f7f7f7;
  --max-width: 1120px;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.container {
  width: min(var(--max-width), 92%);
  margin: 0 auto;
}

.narrow {
  width: min(780px, 100%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: lowercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

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

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
}

.hero,
.page-hero {
  padding: 88px 0 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.1;
  margin-top: 0;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 14px;
}

h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.lead {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 680px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid var(--line);
  font-weight: 700;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

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

.btn-dark {
  background: #111111;
  color: #ffffff;
  border-color: #111111;
}

.btn-light {
  background: #ffffff;
  color: #111111;
}

.hero-card,
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

.mock-symbol {
  width: 76px;
  height: 76px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: #111111;
  color: #ffffff;
  margin-bottom: 20px;
}

.card-label {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.section {
  padding: 60px 0;
}

.section-alt {
  background: #fbfbfb;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-heading {
  margin-bottom: 28px;
}

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

.two-col,
.contact-grid,
.cta {
  display: grid;
  gap: 28px;
}

.two-col {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: start;
}

.contact-grid {
  grid-template-columns: 0.9fr 1.1fr;
  align-items: start;
}

.cta {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.feature-list {
  margin: 0;
  padding-left: 20px;
}

.contact-info p {
  margin: 0 0 10px;
}

.contact-form {
  display: grid;
  gap: 10px;
}

.contact-form label {
  font-weight: 700;
  margin-top: 6px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #d8d8d8;
  border-radius: 12px;
  padding: 13px 14px;
  font: inherit;
  background: #fff;
}

.contact-form textarea {
  resize: vertical;
}

.form-note {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 4px 0 0;
}

.site-footer {
  padding: 28px 0 40px;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links a {
  text-decoration: none;
  color: var(--muted);
}

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

@media (max-width: 900px) {
  .hero-grid,
  .cards,
  .two-col,
  .contact-grid,
  .cta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .menu-toggle {
    display: inline-block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 4%;
    right: 4%;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 14px;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

  .footer-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
}