:root {
  --bg: #fdfcff;
  --fg: #161522;
  --muted: #5d5b70;
  --line: #e8e5f0;
  --card: #ffffff;
  --accent-1: #ff6ba6;
  --accent-2: #ffb86b;
  --accent-3: #6be0ff;
  --accent-4: #a46bff;
  --radius: 14px;
  --max: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  color: var(--fg);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

/* Header */
.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: linear-gradient(
    135deg,
    var(--accent-1),
    var(--accent-2),
    var(--accent-3),
    var(--accent-4)
  );
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.brand-ai {
  background: linear-gradient(90deg, var(--accent-1), var(--accent-4));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-header nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.site-header nav a {
  text-decoration: none;
  color: var(--muted);
  transition: color 0.15s ease;
}

.site-header nav a:hover {
  color: var(--fg);
}

/* Main */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Hero */
.hero {
  padding: 4rem 0 5rem;
  max-width: 780px;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 0 0 1.25rem;
  font-weight: 700;
}

.grad {
  background: linear-gradient(
    90deg,
    var(--accent-1),
    var(--accent-2) 35%,
    var(--accent-4) 75%,
    var(--accent-3)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 2rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  background: var(--fg);
  color: var(--bg);
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.cta:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

.cta-ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--line);
}

/* Services */
.services {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--line);
}

.services h2,
.contact h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 1.75rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: transparent;
  box-shadow: 0 10px 30px -12px rgba(70, 40, 120, 0.18);
}

.card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

/* Contact */
.contact {
  padding: 4rem 0 5rem;
  border-top: 1px solid var(--line);
}

.contact p {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 1.25rem;
}

.email {
  display: inline-block;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
  background: linear-gradient(
    90deg,
    var(--accent-1),
    var(--accent-4) 60%,
    var(--accent-3)
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.25rem;
  transition: border-color 0.15s ease;
}

.email:hover {
  border-color: var(--accent-4);
}

/* Footer */
footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--line);
}

footer p {
  margin: 0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0e14;
    --fg: #f3f1fa;
    --muted: #9995ad;
    --line: #242233;
    --card: #17151f;
  }
  .cta {
    background: var(--fg);
    color: #0f0e14;
  }
  .card:hover {
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  }
}