/* ircuitry website - cozy cream/leaf-green/pastel, matching the app */
:root {
  --paper: #fbf3e1;
  --paper-2: #f6ecd6;
  --card: #fffdf7;
  --ink: #43392a;
  --ink-soft: #6f6049;
  --ink-faint: #9a8b73;
  --leaf: #7fb069;
  --leaf-deep: #4f7a3a;
  --leaf-bg: #e9f2dd;
  --pink: #f2b8c6;
  --blue: #a9d4e5;
  --yellow: #f7d98b;
  --lilac: #cbb6e6;
  --line: #e7dcc2;
  --shadow: 0 10px 30px rgba(67, 57, 42, .12);
  --shadow-sm: 0 4px 14px rgba(67, 57, 42, .10);
  --radius: 18px;
  --font: "Nunito", ui-rounded, "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-head: "Baloo 2", var(--font);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  background-image:
    radial-gradient(circle at 12% -10%, #fff7e6 0, transparent 45%),
    radial-gradient(circle at 100% 0, #eef5e3 0, transparent 40%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--leaf-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1080px, 92vw); margin: 0 auto; }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: rgba(251, 243, 225, .82);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-head); font-weight: 800; font-size: 22px; color: var(--ink); }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav .links { margin-left: auto; display: flex; gap: 22px; align-items: center; font-weight: 700; }
.nav .links a { color: var(--ink-soft); }
.nav .links a:hover { color: var(--leaf-deep); text-decoration: none; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font); font-weight: 800; font-size: 16px;
  padding: 13px 22px; border-radius: 999px; border: none; cursor: pointer;
  background: var(--card); color: var(--ink); box-shadow: var(--shadow-sm);
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); text-decoration: none; }
.btn.primary { background: var(--leaf); color: #1f3314; }
.btn.primary:hover { background: #8ec077; }
.btn.ghost { background: transparent; box-shadow: none; border: 2px solid var(--line); }
.btn .sub { font-weight: 600; font-size: 12.5px; opacity: .8; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

/* ---- hero ---- */
.hero { padding: 64px 0 36px; }
.hero h1 {
  font-family: var(--font-head); font-weight: 800; letter-spacing: -.5px;
  font-size: clamp(34px, 5.5vw, 58px); line-height: 1.05; color: var(--ink);
}
.hero h1 .leaf { color: var(--leaf-deep); }
.hero p.lead { font-size: clamp(17px, 2.2vw, 21px); color: var(--ink-soft); margin: 18px 0 26px; max-width: 620px; }
.altlinks { margin-top: 14px; font-size: 14px; color: var(--ink-faint); }
.altlinks a { font-weight: 700; }
.shot {
  margin: 40px auto 0; max-width: 980px;
  border-radius: 20px; border: 1px solid var(--line);
  box-shadow: var(--shadow); overflow: hidden; background: var(--card);
}
.shot img { display: block; width: 100%; height: auto; }

/* ---- sections ---- */
section { padding: 46px 0; }
.section-title { font-family: var(--font-head); font-weight: 800; font-size: clamp(24px, 3.5vw, 34px); text-align: center; }
.section-sub { text-align: center; color: var(--ink-soft); max-width: 640px; margin: 12px auto 0; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; margin-top: 34px; }
.feature {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow-sm);
}
.feature .ic { font-size: 30px; display: grid; place-items: center; width: 54px; height: 54px; border-radius: 14px; margin-bottom: 14px; }
.feature h3 { font-family: var(--font-head); font-weight: 700; font-size: 19px; margin-bottom: 6px; }
.feature p { color: var(--ink-soft); font-size: 15px; }
.c-pink { background: var(--pink); } .c-blue { background: var(--blue); }
.c-yellow { background: var(--yellow); } .c-lilac { background: var(--lilac); }
.c-leaf { background: var(--leaf-bg); }

/* ---- footer ---- */
footer { border-top: 1px solid var(--line); padding: 30px 0; margin-top: 30px; color: var(--ink-faint); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
footer a { color: var(--ink-soft); font-weight: 700; }

/* ---- nodes gallery ---- */
.gallery-head { padding-top: 48px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 26px 0 8px; }
.search {
  flex: 1; min-width: 220px; font-family: var(--font); font-size: 16px; font-weight: 600;
  padding: 12px 18px; border-radius: 999px; border: 2px solid var(--line); background: var(--card); color: var(--ink);
}
.search:focus { outline: none; border-color: var(--leaf); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-weight: 700; font-size: 13.5px; padding: 8px 14px; border-radius: 999px;
  border: 2px solid var(--line); background: var(--card); color: var(--ink-soft); cursor: pointer;
}
.chip.active { background: var(--leaf); color: #1f3314; border-color: var(--leaf); }
.count { color: var(--ink-faint); font-size: 14px; margin: 6px 2px 18px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
.node {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 10px;
}
.node .top { display: flex; align-items: center; gap: 12px; }
.node .badge {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  font-size: 24px; background: var(--leaf-bg); flex: none; overflow: hidden;
}
.node .badge img { width: 30px; height: 30px; object-fit: contain; }
.node .name { font-family: var(--font-head); font-weight: 700; font-size: 17px; line-height: 1.15; }
.node .meta { font-size: 12.5px; color: var(--ink-faint); }
.node .desc { font-size: 14px; color: var(--ink-soft); flex: 1; }
.node .cat { font-size: 11.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .4px; color: var(--leaf-deep); }
.node .actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.node .actions .btn { padding: 9px 16px; font-size: 14px; box-shadow: none; border: 2px solid var(--line); }
.node .actions .btn.primary { border-color: var(--leaf); }
.lang-tag { font-size: 11px; font-weight: 800; padding: 3px 8px; border-radius: 6px; background: var(--paper-2); color: var(--ink-soft); }

.note { background: var(--leaf-bg); border: 1px solid #d7e7c6; border-radius: var(--radius); padding: 18px 22px; margin: 0 0 26px; color: var(--ink-soft); font-size: 15px; }
.note b { color: var(--ink); }
.note ol { margin: 8px 0 0 18px; }
.note code { background: #fff; padding: 1px 6px; border-radius: 6px; border: 1px solid var(--line); font-size: 13px; }

.state { text-align: center; color: var(--ink-faint); padding: 50px 0; font-weight: 600; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fff8e8; font-weight: 700; padding: 12px 22px; border-radius: 999px;
  box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: all .22s ease; z-index: 50;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

@media (max-width: 640px) {
  .nav .links a.hide-sm { display: none; }
  .hero { padding-top: 40px; }
}