/* styles.css */
:root{
  --bg: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --border: #e5e7eb;
  --alt: #f9fafb;
  --link: #0f172a;
  --focus: #111827;
  --radius: 14px;
  --max: 1040px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

a{
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}
a:hover{ text-decoration-thickness: 2px; }

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

.section{ padding: 3.25rem 0; }
.section-alt{
  background: var(--alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

h1, h2, h3{
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem 0;
}
h1{ font-size: clamp(1.9rem, 2.8vw, 2.6rem); }
h2{
  font-size: clamp(1.4rem, 2vw, 1.75rem);
  margin-bottom: 1rem;
}
h3{ font-size: 1.05rem; margin-bottom: 0.5rem; }

p{ margin: 0 0 1rem 0; }
.lead{ font-size: 1.05rem; max-width: 65ch; }
.kicker{ color: var(--muted); font-weight: 600; margin-bottom: 0.75rem; }
.muted{ color: var(--muted); }
.fineprint{
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 75ch;
  margin-top: 1.25rem;
}

/* Skip link */
.skip-link{
  position: absolute;
  left: -999px;
  top: 0.5rem;
  padding: 0.6rem 0.85rem;
  background: var(--bg);
  border: 2px solid var(--focus);
  border-radius: 10px;
}
.skip-link:focus{
  left: 1rem;
  z-index: 9999;
}

/* Header */
.site-header{
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1rem;
}
.brand{ text-decoration: none; }
.brand-name{
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* Nav */
.site-nav{ display: flex; align-items: center; gap: 0.75rem; }
.nav-toggle{
  display: none;
  font: inherit;
  border: 1px solid var(--border);
  background: var(--bg);
  padding: 0.5rem 0.75rem;
  border-radius: 12px;
}
.nav-toggle:focus{
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}
.nav-list{
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1rem;
}
.nav-list a{
  text-decoration: none;
  padding: 0.35rem 0.2rem;
  border-radius: 8px;
}
.nav-list a:focus{
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}
.nav-list a:hover{ text-decoration: underline; }

/* Cards & layout */
.grid{
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}
.card{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.1rem;
  background: var(--bg);
}
.grid .card{ grid-column: span 6; }

.two-col{
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  margin-top: 1rem;
}
.two-col .card{ grid-column: span 6; }

.bullets{
  margin: 0.75rem 0 0 1.1rem;
  padding: 0;
}
.bullets li{ margin: 0.3rem 0; }

/* Buttons */
.hero-actions{
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: 1.1rem 0 0.25rem 0;
}
.button{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--text);
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  font-weight: 650;
}
.button:hover{
  filter: brightness(0.92);
  text-decoration: none;
}
.button:focus{
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}
.button-ghost{
  background: transparent;
  color: var(--text);
}

/* Contact */
.contact-card .contact-line{
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: baseline;
}
.label{ font-weight: 650; color: var(--muted); }

/* Footer */
.site-footer{
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}
.footer-inner{
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 760px){
  .grid .card,
  .two-col .card{
    grid-column: span 12;
  }

  .nav-toggle{ display: inline-flex; }

  .nav-list{
    display: none;
    position: absolute;
    right: 1rem;
    top: 3.25rem;
    flex-direction: column;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 0.75rem;
    min-width: 220px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
  }
  .nav-list.is-open{ display: flex; }
}