@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;700&family=IBM+Plex+Mono:ital,wght@0,400;0,500;1,400&family=IBM+Plex+Sans+JP:wght@400;500;700&display=swap');

:root {
  --ink: #1c2530;        /* deep slate (knit, darkened) */
  --ink-2: #243140;
  --paper: #e8e4da;      /* warm greige ground */
  --card: #fbfaf6;
  --marigold: #e9b133;   /* beak — the one accent */
  --marigold-deep: #c9912a;
  --sky: #8cb8d6;        /* knit light */
  --sand: #d8bf95;       /* code strings */
  --blush: #e3a6af;      /* cheeks — micro accent */
  --slate-link: #2d4d68;
  --text: #20262e;
  --muted: #6f6a5e;
  --on-dark: #ece8df;
  --on-dark-mute: #94a3b1;
  --line: #d8d2c4;
  --line-dark: #33414f;

  --display: "Space Grotesk", "IBM Plex Sans JP", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --body: "IBM Plex Sans JP", "Space Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  color: var(--text);
  background: var(--paper);
  line-height: 1.85;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: var(--slate-link); text-decoration: none; }
:focus-visible { outline: 2px solid var(--marigold); outline-offset: 3px; border-radius: 2px; }

.wrap { width: 100%; max-width: 880px; margin: 0 auto; padding: 0 26px; }
.mono { font-family: var(--mono); }

/* ============ top nav ============ */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(28, 37, 48, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.nav .brand {
  font-family: var(--mono); font-weight: 500; font-size: 15px; letter-spacing: .02em;
  color: var(--on-dark);
}
.nav .brand b { color: var(--marigold); font-weight: 500; }
.nav .links { display: flex; gap: 4px; }
.nav .links a {
  font-family: var(--mono); font-size: 13px; letter-spacing: .02em;
  color: var(--on-dark-mute); padding: 7px 12px; border-radius: 7px;
  transition: color .18s, background .18s;
}
.nav .links a:hover { color: var(--on-dark); background: rgba(255,255,255,.06); }

/* ============ hero (dark) ============ */
.hero {
  position: relative; overflow: hidden;
  background: var(--ink);
  color: var(--on-dark);
  padding: 78px 0 92px;
}
.hero::before { /* subtle marigold glow, single source */
  content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%;
  background: radial-gradient(circle, rgba(233,177,51,.14), transparent 65%);
  top: -180px; left: 50%; transform: translateX(-50%); pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }

.hero .avatar {
  width: 78px; height: 78px; border-radius: 50%;
  background: var(--card); border: 3px solid #fff;
  box-shadow: 0 10px 26px -12px rgba(0,0,0,.6);
  display: grid; place-items: center; overflow: hidden; margin: 0 0 26px;
}
.hero .avatar img { width: 100%; height: 100%; object-fit: cover; }
.hero .avatar .penguin { width: 74%; height: 74%; }

.hero .eyebrow {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .26em;
  text-transform: uppercase; color: var(--marigold); margin: 0 0 14px;
}
.hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(52px, 12vw, 104px); line-height: .92; letter-spacing: -.01em;
  margin: 0; color: #fff;
}
.hero h1 .pt { color: var(--marigold); }
.hero .role {
  margin: 18px 0 0; color: var(--on-dark-mute);
  font-size: 15px; max-width: 30em;
}

/* the signature: a typed declaration */
.decl {
  margin: 34px 0 0;
  font-family: var(--mono); font-size: clamp(13px, 3.3vw, 16.5px);
  line-height: 2; tab-size: 4;
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  border-left: 3px solid var(--marigold);
  border-radius: 12px;
  padding: 22px 24px; overflow-x: auto;
  color: var(--on-dark);
}
.decl .k  { color: var(--marigold); }                 /* keyword: val */
.decl .v  { color: #fff; }                            /* identifier: royle */
.decl .t  { color: var(--sky); }                      /* type / fn */
.decl .key{ color: var(--on-dark-mute); }             /* property keys */
.decl .s  { color: var(--sand); }                     /* strings */
.decl .o  { color: #6f7c8a; }                         /* punctuation */
.decl .c  { color: #5d6b79; font-style: italic; }     /* comment */

.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.btn {
  font-family: var(--body); font-weight: 700; font-size: 14.5px; letter-spacing: .02em;
  padding: 12px 24px; border-radius: 9px; display: inline-flex; align-items: center; gap: 8px;
  transition: transform .16s, background .16s, border-color .16s;
}
.btn:hover { transform: translateY(-2px); }
.btn-fill { background: var(--marigold); color: #21170a; }
.btn-fill:hover { background: #f2bd45; }
.btn-line { color: var(--on-dark); border: 1px solid var(--line-dark); }
.btn-line:hover { border-color: var(--on-dark-mute); }

/* ============ sections (paper) ============ */
.sec { padding: 88px 0; }
.sec-label {
  font-family: var(--mono); font-size: 12px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--marigold-deep); margin: 0 0 10px;
}
.sec-title {
  font-family: var(--display); font-weight: 700; font-size: clamp(26px, 5vw, 36px);
  letter-spacing: -.01em; margin: 0 0 38px; color: var(--text);
}

/* works */
.work {
  display: block; background: var(--card);
  border: 1px solid var(--line); border-radius: 16px;
  padding: 28px; color: inherit; position: relative; max-width: 560px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.work:hover { transform: translateY(-4px); border-color: #cdc6b6; box-shadow: 0 24px 44px -28px rgba(40,34,22,.5); }
.work .top { display: flex; align-items: center; gap: 16px; }
.work .icon { width: 62px; height: 62px; border-radius: 15px; flex: 0 0 auto; box-shadow: 0 6px 14px -8px rgba(0,0,0,.35); }
.work h3 { font-family: var(--display); font-weight: 700; font-size: 22px; margin: 0; letter-spacing: -.01em; }
.work .state { font-family: var(--mono); font-size: 11.5px; color: #3d7a5a; letter-spacing: .04em; margin-top: 3px; display: inline-block; }
.work .state .blip { color: #46a072; }
.work p { margin: 18px 0 16px; color: var(--muted); font-size: 14.5px; }
.work .meta { font-family: var(--mono); font-size: 12px; color: var(--muted); letter-spacing: .02em; }
.work .arrow { position: absolute; right: 26px; bottom: 24px; color: var(--marigold-deep); font-size: 20px; transition: transform .2s; }
.work:hover .arrow { transform: translateX(5px); }

/* about — expanded fields of the object */
.fields { display: grid; gap: 0; max-width: 720px; }
.field {
  display: grid; grid-template-columns: 180px 1fr; gap: 28px;
  padding: 26px 0; border-top: 1px solid var(--line);
}
.field:last-child { border-bottom: 1px solid var(--line); }
.field .fkey {
  font-family: var(--mono); font-size: 13.5px; color: var(--marigold-deep);
  letter-spacing: .02em; padding-top: 2px;
}
.field .fkey .dot { color: var(--blush); }
.field .fval { margin: 0; color: var(--text); font-size: 15px; }
.field .fval .lang { font-weight: 700; }
.field .fval .sub { color: var(--muted); }
.field .fval ul { margin: 0; padding: 0; list-style: none; }
.field .fval li { margin-bottom: 4px; }
.field .fval li b { font-weight: 700; }

/* ============ contact + footer (dark, bookend) ============ */
.close { background: var(--ink); color: var(--on-dark); padding: 80px 0 0; }
.close .inner { text-align: center; }
.close .penguin { width: 56px; height: 56px; margin: 0 auto 16px; }
.close .sec-label { color: var(--marigold); }
.close h2 {
  font-family: var(--display); font-weight: 700; font-size: clamp(26px, 5vw, 38px);
  margin: 0 0 14px; color: #fff; letter-spacing: -.01em;
}
.close p { color: var(--on-dark-mute); margin: 0 auto 26px; max-width: 26em; font-size: 15px; }
.close .mail {
  font-family: var(--mono); font-size: 15px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 10px;
  color: #21170a; background: var(--marigold); padding: 13px 24px; border-radius: 10px;
  transition: transform .16s, background .16s;
}
.close .mail:hover { transform: translateY(-2px); background: #f2bd45; }
.foot {
  margin-top: 72px; border-top: 1px solid var(--line-dark);
  padding: 22px 0; text-align: center;
}
.foot p { margin: 0 auto; max-width: none; font-family: var(--mono); font-size: 12px; color: var(--on-dark-mute); letter-spacing: .04em; }

/* ============ reveal motion ============ */
[data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
[data-reveal].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: no-preference) {
  .hero .anim { opacity: 0; transform: translateY(12px); animation: rise .6s ease forwards; }
  .hero .anim.d1 { animation-delay: .05s; }
  .hero .anim.d2 { animation-delay: .15s; }
  .hero .anim.d3 { animation-delay: .25s; }
  .hero .anim.d4 { animation-delay: .38s; }
  .hero .anim.d5 { animation-delay: .5s; }
  @keyframes rise { to { opacity: 1; transform: none; } }
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

@media (max-width: 620px) {
  .sec { padding: 64px 0; }
  .field { grid-template-columns: 1fr; gap: 8px; padding: 22px 0; }
  .field .fkey { padding-top: 0; }
}