:root {
  --bg: #f7f8fa; --surface: #ffffff; --ink: #121417; --mute: #5b6472; --line: #e3e6eb;
  --accent: #1f4fd1; --accent-ink: #ffffff; --accent-soft: #e8eefc; --ok: #1a7f45; --bad: #c62828;
  --radius: 14px; --max: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0e1014; --surface: #161a20; --ink: #eef0f3; --mute: #9aa3b1; --line: #262b33;
          --accent: #7098ff; --accent-ink: #0e1014; --accent-soft: #1a2340; --ok: #4cc38a; --bad: #ff6b6b; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); text-decoration: none; }
.mark { width: 34px; height: 34px; border-radius: 9px; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-size: 13px; font-weight: 800; letter-spacing: .5px; }
.nav nav { display: flex; gap: 22px; font-size: 15px; }
.nav nav a { color: var(--mute); text-decoration: none; }
.nav nav a:hover { color: var(--ink); }
.nav .signin { font-size: 14px; padding: 7px 14px; border: 1px solid var(--line); border-radius: 9px; color: var(--ink); text-decoration: none; white-space: nowrap; }
@media (max-width: 760px) { .nav nav { display: none; } }

/* hero */
.hero { padding: 88px 0 64px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); padding: 5px 12px; border-radius: 99px; }
.hero h1 { font-size: clamp(36px, 6vw, 60px); line-height: 1.08; margin: 18px 0 18px; letter-spacing: -.02em; max-width: 14ch; }
.hero p.lede { font-size: 20px; color: var(--mute); max-width: 58ch; margin: 0 0 30px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn { display: inline-block; padding: 12px 20px; border-radius: 10px; font-weight: 600; text-decoration: none; border: 1px solid var(--line); color: var(--ink); background: var(--surface); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

/* stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-top: 56px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; }
.stat b { display: block; font-size: 30px; letter-spacing: -.01em; }
.stat span { color: var(--mute); font-size: 14px; }

/* sections */
section.block { padding: 72px 0; border-top: 1px solid var(--line); }
section.block h2 { font-size: clamp(26px, 3.4vw, 36px); margin: 0 0 10px; letter-spacing: -.01em; }
section.block > .wrap > p.sub { color: var(--mute); margin: 0 0 34px; max-width: 62ch; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 12px 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--mute); font-size: 15px; }
.icon { width: 42px; height: 42px; border-radius: 11px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }

/* experience */
.logos { display: flex; flex-wrap: wrap; gap: 10px 28px; align-items: center; margin: 0 0 28px; color: var(--mute); font-weight: 700; font-size: 20px; letter-spacing: .01em; }
.timeline { display: grid; gap: 12px; }
.role { display: grid; grid-template-columns: 170px 1fr; gap: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; }
.role .when { color: var(--mute); font-size: 14px; }
.role h3 { margin: 0 0 4px; font-size: 17px; }
.role p { margin: 0; color: var(--mute); font-size: 15px; }
@media (max-width: 640px) { .role { grid-template-columns: 1fr; gap: 4px; } }

/* project */
.project { display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.project ul { margin: 12px 0 18px; padding-left: 20px; color: var(--mute); font-size: 15px; }
@media (max-width: 820px) { .project { grid-template-columns: 1fr; } }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tag { font-size: 12px; padding: 3px 9px; border-radius: 99px; border: 1px solid var(--line); color: var(--mute); }

/* contact */
form.contact { display: grid; gap: 12px; max-width: 620px; }
form.contact .two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { form.contact .two { grid-template-columns: 1fr; } }
form.contact input, form.contact textarea { width: 100%; padding: 12px 14px; font: inherit; font-size: 16px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
form.contact input:focus, form.contact textarea:focus { outline: none; border-color: var(--accent); }
form.contact textarea { min-height: 140px; resize: vertical; }
form.contact .hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
form.contact button { justify-self: start; cursor: pointer; font: inherit; }
.note { font-size: 14px; color: var(--mute); }
.note.ok { color: var(--ok); } .note.bad { color: var(--bad); }

footer { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--mute); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
footer a { color: var(--mute); }

/* simple pages (status, errors, about) */
.page { padding: 64px 0 80px; }
.page h1 { font-size: clamp(30px, 5vw, 44px); margin: 0 0 10px; letter-spacing: -.01em; }
.page .sub { color: var(--mute); margin: 0 0 32px; }
.center { min-height: calc(100vh - 64px); display: grid; place-items: center; text-align: center; padding: 40px 20px; }
.center .code { font-size: 96px; font-weight: 800; line-height: 1; color: var(--accent); letter-spacing: -.04em; }
/* profile links under the contact heading (LinkedIn / GitHub) */
section.block > .wrap > p.profiles { color: var(--mute); margin: -22px 0 30px; font-size: 15px; }
p.profiles a { color: var(--accent); font-weight: 600; text-decoration: none; }
p.profiles a:hover { text-decoration: underline; }