/* Light by default; dark when the OS/browser asks for it. */
:root {
  --bg: #fbfbfc;
  --text: #18181b;
  --muted: #45454d;
  --link: #3b5bdb;
  --link-hover: #18181b;
  --accent: #5e5df0;
  --gradient: linear-gradient(135deg, #4d7fff 0%, #f0285a 100%);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #e8e8ea;
    --muted: #b4b4bb;
    --link: #8fb0ff;
    --link-hover: #fff;
    --gradient: linear-gradient(135deg, #6699ff 0%, #ff3366 100%);
  }
}

* { box-sizing: border-box; }

html { color-scheme: light dark; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1.0625rem/1.65 "Inter", system-ui, -apple-system, sans-serif;
}

.intro {
  max-width: 1000px;
  margin: 0 auto;
  padding: 90px 30px 60px;
  display: grid;
  grid-template-columns: 52fr 48fr;
  gap: 50px;
  align-items: start;
}

h1 {
  margin: 0 0 0.6rem;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

p { margin: 0 0 0.9rem; color: var(--muted); }

a { color: var(--link); text-underline-offset: 3px; }
a:hover { color: var(--link-hover); }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.25rem;
  width: min(100%, 400px);
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 10px 20px -10px #6e79d6;
  transition: transform 0.15s, filter 0.15s;
}
.button:hover { color: #fff; filter: brightness(1.12); transform: translateY(-1px); }

.photo { margin: 0; }
.photo img {
  display: block;
  width: 100%;
  max-width: 388px;
  height: auto;
  border-radius: 12px;
}

@media (max-width: 720px) {
  .intro {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 50px 20px 40px;
  }
}