:root {
  --primary: #1f2933;
  --secondary: #4b5563;
  --accent: #3b6ea5;

  --black: #000000;
  --white: #ffffff;

  --border: #e5e7eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--white);
  color: var(--secondary);
  line-height: 1.6;
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

section {
  margin-bottom: 7rem;
}

h1, h2, h3 {
  color: var(--primary);
  line-height: 1.25;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: .5rem;
}

p { margin-bottom: 1rem; }

/* Hero */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .75rem;
}

.lead {
  font-size: 1.125rem;
  max-width: 55rem;
}

/* Buttons */
.actions {
  margin-top: 2.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  padding: .85rem 1.4rem;
  border-radius: 999px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--border);
}

.btn.primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn.secondary {
  color: var(--primary);
}

.btn.secondary:hover {
  border-color: var(--primary);
}

/* Philosophy */
.philosophy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.ticks {
  list-style: none;
  padding: 0;
}

.ticks li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 1rem;
}

.ticks li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* Services */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  padding: 2rem;
  background: var(--white);
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.label {
  font-weight: 600;
}

/* Microsoft links */
.links {
  text-align: left;
}

.ms-link {
  font-size: 1.25rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.ms-link:hover {
  text-decoration: underline;
}

.hint {
  color: var(--secondary);
  margin-left: .5rem;
}

/* Contact */
.contact {
  text-align: center;
}

.email {
  font-size: 1.125rem;
  color: var(--accent);
  text-decoration: none;
}

.email:hover {
  text-decoration: underline;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1rem;
  text-align: center;
  font-size: .875rem;
  color: var(--secondary);
}

/* Responsive */
@media (max-width: 800px) {
  .philosophy,
  .about {
    grid-template-columns: 1fr;
  }
}