:root {
  --max: 1120px;
  --pad: 20px;

  --bg: #ffffff;
  --text: #111111;
  --muted: #555a5a;
  --line: #e6e6e6;
  --soft: #f6f6f6;

  --radius: 18px;
}

/* Reset */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

/* Base */
body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: #000;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 8px;
  margin-left: auto;
}

.nav-link {
  padding: 8px 12px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid transparent;
}

.nav-link:hover {
  background: var(--soft);
}

.nav-link.active {
  border-color: var(--line);
  font-weight: 700;
}

.header-cta {
  display: flex;
  gap: 8px;
  margin-left: 12px;
}

.btn {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg);
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
}

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

.btn-ghost {
  background: transparent;
}

/* Mobile */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  margin-left: auto;
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
}

.mobile-nav.open {
  display: block;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  padding: 12px;
}

.mobile-links .nav-link {
  margin-bottom: 6px;
}

.mobile-cta {
  padding: 12px;
  display: flex;
  gap: 8px;
}

/* Hero */
.hero {
  padding: 60px 0;
}

.kicker {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.hero h1 {
  font-size: 44px;
  line-height: 1.1;
  margin: 12px 0;
}

.lead {
  font-size: 18px;
  color: var(--muted);
  max-width: 720px;
}

.hero-actions {
  margin: 24px 0;
  display: flex;
  gap: 10px;
}

.hero-media {
  margin-top: 28px;
}

.hero-media img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

/* Sections */
.section {
  padding: 60px 0;
}

.section h2 {
  font-size: 32px;
  margin-bottom: 10px;
}

/* Footer */
.footer {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 1080px) {
  .nav,
  .header-cta {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
}