:root {
  --bg: #ffffff;
  --bg-soft: #f3f3f3;
  --text: #111111;
  --text-soft: #444444;
  --line: #d8d8d8;
  --dark: #0a0a0a;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

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

a {
  color: inherit;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #ffffffee;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
}

.brand {
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  padding: 8px 12px;
  font-weight: 600;
}

.main-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.main-nav a {
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
}

.main-nav a:hover,
.main-nav a.active {
  border-color: #000;
  background: #000;
  color: #fff;
}

.hero {
  background: linear-gradient(135deg, #000, #1f1f1f 52%, #434343);
  color: #fff;
  padding: 76px 0;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.1;
}

.hero p {
  margin-top: 18px;
  max-width: 820px;
  color: #dfdfdf;
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid #000;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}

.btn-dark {
  background: #000;
  color: #fff;
}

.btn-light {
  background: #fff;
  color: #000;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

section {
  padding: 56px 0;
}

.section-alt {
  background: var(--bg-soft);
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
}

.lead {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.8;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

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

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card h3 {
  margin-top: 0;
}

.card ul {
  margin: 10px 0 0;
  padding-left: 20px;
  color: var(--text-soft);
  line-height: 1.7;
}

.long-text p {
  color: var(--text-soft);
  line-height: 1.85;
  margin: 0 0 16px;
}

.callout {
  border-left: 4px solid #000;
  background: #f6f6f6;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 18px;
  margin: 20px 0;
  color: var(--text-soft);
}

.contact-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li {
  margin: 10px 0;
}

.site-footer {
  background: #000;
  color: #f2f2f2;
  border-top: 1px solid #1f1f1f;
  padding: 28px 0;
}

.site-footer p {
  margin: 6px 0;
  color: #d6d6d6;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 50;
}

.modal[hidden] {
  display: none;
}

.modal-panel {
  width: min(640px, 94vw);
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 22px;
}

.modal-panel h3 {
  margin-top: 0;
}

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

@media (max-width: 840px) {
  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding-bottom: 12px;
  }

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

  .site-header .container {
    flex-wrap: wrap;
  }
}