:root {
  --bg: #fafaf7;
  --bg-alt: #f0efe9;
  --ink: #14213d;
  --muted: #5b6475;
  --line: #dcdad0;
  --accent: #0b7a75;
  --accent-ink: #ffffff;
  --card: #ffffff;
  --max: 64rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1524;
    --bg-alt: #131c2f;
    --ink: #eef1f7;
    --muted: #9aa5ba;
    --line: #26314a;
    --accent: #3cc3bb;
    --accent-ink: #0e1524;
    --card: #17213a;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 1.0625rem/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1rem; }
.narrow { max-width: 42rem; }

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, .btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--bg); padding: .5rem 1rem; z-index: 10; }
.skip:focus { left: 0; }

/* header */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); position: sticky; top: 0; z-index: 5; }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: .8rem; padding-bottom: .8rem; flex-wrap: wrap; }
.brand { color: var(--ink); font-weight: 700; font-size: 1.15rem; text-decoration: none; letter-spacing: -.01em; }
nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: .95rem; }
nav a:hover { color: var(--ink); }

/* hero */
.hero { padding: 4.5rem 0 4rem; }
.eyebrow { margin: 0 0 .75rem; color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; }
h1 { margin: 0 0 1rem; font-size: clamp(2.2rem, 6vw, 3.6rem); line-height: 1.1; letter-spacing: -.02em; }
.lead { margin: 0 0 1.75rem; max-width: 40rem; font-size: 1.25rem; color: var(--muted); }
.actions { display: flex; gap: .75rem; flex-wrap: wrap; margin: 0; }

.btn { display: inline-block; padding: .7rem 1.25rem; border-radius: .5rem; background: var(--accent); color: var(--accent-ink); font-weight: 600; text-decoration: none; border: 2px solid var(--accent); }
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--accent); }

/* sections */
.block { padding: 3.5rem 0; border-top: 1px solid var(--line); }
.block.alt { background: var(--bg-alt); }
h2 { margin: 0 0 1.25rem; font-size: 1.75rem; letter-spacing: -.01em; }
h3 { margin: 0 0 .4rem; font-size: 1.1rem; }
.muted { color: var(--muted); }

.cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: .75rem; padding: 1.25rem; }
.card p { margin: 0; color: var(--muted); }

.projects { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.projects li { background: var(--card); border: 1px solid var(--line); border-radius: .75rem; padding: 1.1rem 1.25rem; display: grid; gap: .2rem; }
.projects a { font-weight: 700; font-size: 1.1rem; }
.projects span { color: var(--muted); }

/* contact form */
.hero.compact { padding-bottom: 3rem; }
.form { display: grid; gap: .4rem; margin-top: 2rem; }
.form label { font-weight: 600; margin-top: .6rem; }
.form input[type="text"], .form input[type="email"], .form textarea {
  width: 100%; padding: .7rem .8rem; font: inherit; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: .5rem;
}
.form input:focus-visible, .form textarea:focus-visible { outline: 3px solid var(--accent); outline-offset: 1px; }
.form .btn { justify-self: start; margin-top: 1rem; cursor: pointer; font: inherit; font-weight: 600; }
.form .btn:disabled { opacity: .6; cursor: default; }
.hp { display: none; }
.result { margin: .5rem 0 0; min-height: 1.5em; }
.result.ok { color: var(--accent); }
.result.err { color: #c0392b; }
@media (prefers-color-scheme: dark) { .result.err { color: #ff8a7a; } }
.small { font-size: .9rem; margin: .5rem 0 0; }
nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 1.75rem 0; color: var(--muted); font-size: .9rem; }
.site-footer p { margin: 0; }

@media (max-width: 40rem) {
  .hero { padding: 3rem 0 2.5rem; }
  .block { padding: 2.5rem 0; }
  .bar { flex-direction: column; align-items: flex-start; gap: .4rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}