/* Oliver's Projects — shared styles
   Layout: big playful title, then a grid of chunky coloured tiles, each a little poster for one project. */
:root {
  --bg: #fbfaf7;
  --surface: #ffffff;
  --ink: #1d1b24;
  --muted: #5f5b6b;
  --line: #e7e3dc;
  --accent: #ff5a36;
  --display: "Lilita One", "Arial Rounded MT Bold", "Trebuchet MS", sans-serif;
  --body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;

  /* tile colours */
  --t-guildford: #3fae6a;
  --t-biathlon: #2f7fd6;
  --t-radio: #d47b00;
  --t-fitness: #ff5a36;
  --t-flood: #1f9fb8;
  --t-race: #22242b;
  --t-journeys: #8a5cd6;
  --t-activity: #e9488f;
  --t-cats: #f07a2c;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15141a; --surface: #1e1d25; --ink: #f2f0f6; --muted: #a8a3b5; --line: #2e2c38;
    --t-race: #3a3d48; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #15141a; --surface: #1e1d25; --ink: #f2f0f6; --muted: #a8a3b5; --line: #2e2c38;
  --t-race: #3a3d48; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--body); }
img, svg { max-width: 100%; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.05; margin: 0; text-wrap: balance; letter-spacing: 0.01em; }
p { margin: 0; }

/* ---------- top bar ---------- */
.topbar { max-width: 1180px; margin: 0 auto; padding-inline: 20px; padding-block: 18px;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; }
.brand { font-family: var(--display); font-size: 22px; text-decoration: none; display: inline-flex; align-items: center; gap: 10px; }
.brand-dot { width: 30px; height: 30px; border-radius: 9px; background: var(--accent); display: grid; place-items: center; color: #fff; font-size: 15px; }
.nav { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 700; font-size: 15px;
  padding: 8px 14px; border-radius: 999px; border: 2px solid var(--line); background: var(--surface);
  transition: transform .15s ease, border-color .15s ease; }
.pill:hover { transform: translateY(-2px); border-color: var(--ink); }
.pill svg { width: 18px; height: 18px; flex: none; }
.pill.yt svg { fill: #ff0033; }
.pill.ig svg { fill: #d62976; }

/* ---------- home hero ---------- */
.home-hero { max-width: 1180px; margin: 0 auto; padding-inline: 20px; padding-block: 28px 36px; text-align: center; display: grid; gap: 14px; justify-items: center; }
.home-hero h1 { font-size: clamp(54px, 11vw, 120px); }
.home-hero h1 .o { color: var(--accent); display: inline-block; transform: rotate(-6deg); }
.home-hero p { color: var(--muted); font-size: clamp(17px, 2.2vw, 21px); max-width: 40ch; }

/* ---------- tile grid ---------- */
.grid { max-width: 1180px; margin: 0 auto; padding-inline: 20px; padding-block: 0 64px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); gap: 26px; }
.tile { display: grid; gap: 12px; text-decoration: none; color: inherit; }
.tile-art { aspect-ratio: 16 / 10; border-radius: 18px; background: var(--c); position: relative; overflow: hidden;
  display: grid; place-items: center; box-shadow: 0 6px 0 rgba(0,0,0,.14);
  transition: transform .2s cubic-bezier(.3,1.6,.5,1), box-shadow .2s ease; max-width: 100%; }
.tile-art svg { width: 62%; height: auto; }
.tile:hover .tile-art { transform: translateY(-6px) rotate(-1deg); box-shadow: 0 12px 0 rgba(0,0,0,.14); }
.tile-name { font-family: var(--display); font-size: 25px; }
.tile-sub { color: var(--muted); font-size: 15px; margin-top: -8px; }
@media (prefers-reduced-motion: reduce) { .tile-art, .pill { transition: none; } .tile:hover .tile-art { transform: none; } }

/* ---------- project page ---------- */
.p-hero { background: var(--c); color: #fff; }
.p-hero-inner { max-width: 1080px; margin: 0 auto; padding-inline: 20px; padding-block: 36px 44px;
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 28px; align-items: center; }
.p-hero h1 { font-size: clamp(44px, 8vw, 84px); }
.p-hero .tagline { font-size: clamp(18px, 2.4vw, 22px); opacity: .95; max-width: 34ch; margin-top: 12px; }
.p-hero .back { display: inline-block; margin-bottom: 18px; font-weight: 700; text-decoration: none; opacity: .9; }
.p-hero .back:hover { opacity: 1; text-decoration: underline; }
.p-hero svg { width: 100%; max-width: 360px; justify-self: center; }
@media (max-width: 720px) { .p-hero-inner { grid-template-columns: 1fr; } .p-hero svg { max-width: 220px; } }

.content { max-width: 760px; margin: 0 auto; padding-inline: 20px; padding-block: 44px 72px; display: grid; gap: 40px; }
.block { display: grid; gap: 14px; }
.block h2 { font-size: 32px; }
.block p, .block li { max-width: 65ch; }
.block ul { margin: 0; padding-left: 22px; display: grid; gap: 6px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 12px; }
.fact { background: var(--surface); border: 2px solid var(--line); border-radius: 14px; padding: 14px 16px; display: grid; gap: 4px; }
.fact b { font-family: var(--display); font-weight: 400; font-size: 20px; color: var(--c); }
.fact span { color: var(--muted); font-size: 15px; }
.todo { border: 2px dashed var(--line); border-radius: 14px; padding: 16px 18px; color: var(--muted); font-style: italic; }
.todo::before { content: "To fill in: "; font-style: normal; font-weight: 700; color: var(--c); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; counter-reset: s; }
.steps li { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 12px; align-items: start; }
.steps li::before { counter-increment: s; content: counter(s); width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center; background: var(--c); color: #fff; font-family: var(--display); font-size: 18px; }
.steps li div { padding-top: 5px; min-width: 0; }
.steps li span { color: var(--muted); }
.cta { display: inline-flex; align-items: center; gap: 8px; background: var(--c); color: #fff; text-decoration: none;
  font-weight: 700; padding: 12px 20px; border-radius: 999px; justify-self: start; box-shadow: 0 4px 0 rgba(0,0,0,.18); }
.cta:hover { transform: translateY(-2px); }

.more { max-width: 1080px; margin: 0 auto; padding-inline: 20px; padding-block: 0 64px; display: grid; gap: 18px; }
.more h2 { font-size: 28px; }
.more-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 150px), 1fr)); gap: 14px; }
.more-row a { display: grid; gap: 8px; text-decoration: none; font-weight: 700; font-size: 15px; }
.more-row .mini { aspect-ratio: 16 / 10; border-radius: 12px; background: var(--c); display: grid; place-items: center; }
.more-row .mini svg { width: 55%; height: auto; }

/* ---------- about ---------- */
.about-hero { max-width: 1080px; margin: 0 auto; padding-inline: 20px; padding-block: 24px 8px;
  display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 28px; align-items: center; }
.avatar { width: 150px; height: 150px; border-radius: 40px; background: var(--accent); display: grid; place-items: center; transform: rotate(-4deg); }
.avatar span { font-family: var(--display); color: #fff; font-size: 64px; }
.about-hero h1 { font-size: clamp(44px, 8vw, 80px); }
@media (max-width: 560px) { .about-hero { grid-template-columns: 1fr; } .avatar { width: 110px; height: 110px; border-radius: 30px; } .avatar span { font-size: 46px; } }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { padding: 6px 12px; border-radius: 999px; background: var(--surface); border: 2px solid var(--line); font-size: 15px; font-weight: 700; }

footer.site { max-width: 1180px; margin: 0 auto; padding-inline: 20px; padding-block: 24px 40px; border-top: 2px solid var(--line);
  color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }
footer.site a { font-weight: 700; }

/* ---------- interactive toys on project pages ---------- */
.toy { background: var(--surface); border: 2px solid var(--line); border-radius: 18px; padding: 18px; display: grid; gap: 14px; }
.toy-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 8px; }
.toy-head h2 { font-size: 28px; }
.toy-note { color: var(--muted); font-size: 15px; }
.btn { font: 700 16px var(--body); border: 0; border-radius: 999px; padding: 10px 18px; cursor: pointer;
  background: var(--c); color: #fff; box-shadow: 0 4px 0 rgba(0,0,0,.18); }
.btn:active { transform: translateY(2px); box-shadow: 0 2px 0 rgba(0,0,0,.18); }
.btn.ghost { background: var(--surface); color: var(--ink); border: 2px solid var(--line); box-shadow: none; }
.toy canvas { width: 100%; height: auto; display: block; border-radius: 12px; touch-action: manipulation; cursor: crosshair; max-width: 100%; }
.score { font: 400 22px var(--display); }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.toy input[type="text"] { font: 17px var(--body); padding: 10px 14px; border-radius: 12px; border: 2px solid var(--line);
  background: var(--bg); color: var(--ink); flex: 1 1 220px; min-width: 0; }
.toy input[type="range"] { flex: 1 1 220px; accent-color: var(--c); }
.morse { font: 500 20px/1.7 var(--mono); letter-spacing: .08em; overflow-wrap: anywhere; min-height: 1.7em; color: var(--c); }
.big-number { font: 400 clamp(36px, 7vw, 56px)/1 var(--display); color: var(--c); font-variant-numeric: tabular-nums; }
.chain { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.node { border-radius: 14px; border: 2px solid var(--line); padding: 12px; display: grid; gap: 6px; justify-items: center; text-align: center; font-size: 14px; color: var(--muted); }
.node b { color: var(--ink); font-size: 15px; }
.led { display: grid; grid-template-columns: repeat(5, 10px); gap: 3px; }
.led i { width: 10px; height: 10px; border-radius: 2px; background: var(--line); }
.led i.on { background: #ff3b30; box-shadow: 0 0 6px #ff3b30; }
@media (max-width: 480px) { .chain { grid-template-columns: 1fr; } }

/* ---------- game card, hat, call sign ---------- */
.game-card { display: grid; grid-template-columns: minmax(0, 200px) minmax(0, 1fr); gap: 22px; align-items: center;
  background: var(--surface); border: 2px solid var(--line); border-radius: 18px; padding: 18px; }
.game-card img { width: 100%; height: auto; border-radius: 16px; display: block; max-width: 100%; }
.game-card-text { display: grid; gap: 10px; min-width: 0; }
.game-card-text h2 { font-size: 30px; }
.game-card.hat { grid-template-columns: minmax(0, 150px) minmax(0, 1fr); }
@media (max-width: 520px) { .game-card, .game-card.hat { grid-template-columns: 1fr; } .game-card img { max-width: 220px; } }
.callsign { display: grid; gap: 4px; justify-items: start; background: var(--c); color: #fff; border-radius: 18px; padding: 20px 22px; box-shadow: 0 6px 0 rgba(0,0,0,.14); }
.cs-label { font-weight: 700; font-size: 14px; letter-spacing: .1em; text-transform: uppercase; opacity: .9; }
.cs { font: 400 clamp(48px, 11vw, 84px)/1 var(--display); letter-spacing: .04em; }
.cs-phon { font-size: 15px; opacity: .95; }
.tile-art img { width: 100%; height: 100%; object-fit: cover; display: block; }
.more-row .mini img { width: 100%; height: 100%; object-fit: cover; border-radius: 12px; display: block; }
.photo { margin: 0; display: grid; gap: 8px; }
.photo img { width: 100%; height: auto; border-radius: 18px; display: block; max-width: 100%; }
.photo figcaption { color: var(--muted); font-size: 15px; }
.brand-hat { width: 34px; height: 34px; border-radius: 9px; display: block; }