/* ─────────────────────────────────────────────────
   PotWatch — shared stylesheet
   CC BY-SA 4.0 · potwatch.net
   ───────────────────────────────────────────────── */

:root {
  --bg: #0d0f0c;
  --bg-card: #151812;
  --bg-card2: #1a1e15;
  --green: #6fd52e;
  --green-dim: #4e9c1f;
  --blue: #3b5fe0;
  --blue-bright: #5f7ff5;
  --amber: #ffa94e;
  --text: #e8ece3;
  --text-dim: #9aa392;
  --border: #262b20;
  --mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
a { color: var(--green); }

/* ── Nav ── */
nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13,15,12,.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.logo {
  font-weight: 700; font-size: 1.7rem; letter-spacing: -.035em; line-height: 1;
  text-decoration: none; color: var(--text); white-space: nowrap;
}
.logo .dot { color: var(--green); }
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: .92rem; white-space: nowrap; transition: color .2s; }
.nav-links a:hover { color: var(--green); }
.nav-links a.active { color: var(--green); }

/* CSS-only burger menu — no JavaScript */
.nav-toggle { display: none; }
.nav-burger {
  display: none; cursor: pointer; padding: 8px; margin: -8px -8px -8px 0;
  flex-direction: column; gap: 5px;
}
.nav-burger span {
  display: block; width: 24px; height: 2px; background: var(--text);
  border-radius: 2px; transition: transform .25s, opacity .2s;
}
.nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
.nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 980px) {
  .nav-links { gap: 16px; font-size: .86rem; }
  .logo { font-size: 1.5rem; }
}
@media (max-width: 760px) {
  .nav-inner { flex-wrap: wrap; height: auto; padding: 14px 0; }
  .logo { font-size: 1.6rem; }
  .nav-burger { display: flex; }
  .nav-links {
    display: none; order: 3; width: 100%;
    flex-direction: column; align-items: flex-start;
    gap: 0; padding-bottom: 8px;
  }
  .nav-toggle:checked ~ .nav-links { display: flex; }
  .nav-links a {
    width: 100%; padding: 12px 2px; font-size: 1rem;
    border-top: 1px solid var(--border);
  }
}

/* ── Hero (home) ── */
.hero { padding: 80px 0 60px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
@media (max-width: 820px) { .hero { grid-template-columns: 1fr; padding-top: 48px; } }
.proverb {
  font-family: var(--mono); font-size: .85rem; color: var(--green);
  border: 1px solid var(--green-dim); border-radius: 999px;
  display: inline-block; padding: 6px 16px; margin-bottom: 24px;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.12; letter-spacing: -.03em; font-weight: 700; }
h1 em { font-style: normal; color: var(--green); }
.hero p.sub { margin: 22px 0 32px; font-size: 1.15rem; color: var(--text-dim); max-width: 34em; }
.hero-img {
  border-radius: 20px; overflow: hidden; border: 1px solid var(--border);
  box-shadow: 0 24px 80px rgba(0,0,0,.6); aspect-ratio: 4/5;
}
.hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ── Page header (subpages) ── */
.page-head { padding: 64px 0 40px; border-bottom: 1px solid var(--border); }
.crumbs { font-family: var(--mono); font-size: .8rem; color: var(--text-dim); margin-bottom: 16px; }
.crumbs a { color: var(--text-dim); text-decoration: none; }
.crumbs a:hover { color: var(--green); }
.page-head h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
.page-head p { margin-top: 18px; color: var(--text-dim); font-size: 1.12rem; max-width: 46em; }

/* ── Buttons ── */
.cta-row { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 28px; border-radius: 10px;
  font-weight: 500; text-decoration: none; font-size: 1rem; transition: transform .15s, box-shadow .15s;
}
.btn-primary { background: var(--green); color: #10230a; box-shadow: 0 0 32px rgba(111,213,46,.25); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 40px rgba(111,213,46,.4); }
.btn-ghost { border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--green-dim); color: var(--green); }

/* ── Sections ── */
section { padding: 72px 0; border-top: 1px solid var(--border); }
section:first-of-type { border-top: none; }
.kicker { font-family: var(--mono); font-size: .8rem; text-transform: uppercase; letter-spacing: .18em; color: var(--blue-bright); margin-bottom: 12px; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); letter-spacing: -.02em; margin-bottom: 16px; }
h3 { font-size: 1.1rem; }
.lede { color: var(--text-dim); font-size: 1.1rem; max-width: 44em; }
.body-text { color: var(--text-dim); max-width: 44em; margin-top: 18px; }
.body-text + .body-text { margin-top: 14px; }
.body-text strong { color: var(--text); }

/* ── Steps ── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 28px; }
.step .num { font-family: var(--mono); color: var(--green); font-size: .9rem; margin-bottom: 14px; }
.step h3 { margin-bottom: 8px; }
.step p { color: var(--text-dim); font-size: .95rem; }

/* ── Boil callout ── */
.boil-callout {
  margin-top: 44px; background: linear-gradient(135deg, var(--bg-card2), var(--bg-card));
  border: 1px solid var(--green-dim); border-radius: 20px; padding: 36px;
  display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: center;
}
@media (max-width: 640px) { .boil-callout { grid-template-columns: 1fr; } }
.boil-callout .temp { font-family: var(--mono); font-size: 3rem; color: var(--green); font-weight: 500; white-space: nowrap; }
.boil-callout .temp small { font-size: 1.2rem; color: var(--text-dim); }
.boil-callout p { color: var(--text-dim); }
.boil-callout strong { color: var(--text); }

/* ── Features ── */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .features { grid-template-columns: 1fr; } }
.feature {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 26px;
  transition: border-color .2s;
}
.feature:hover { border-color: var(--green-dim); }
.feature .icon { font-size: 1.6rem; margin-bottom: 14px; display: block; }
.feature h3 { font-size: 1.05rem; margin-bottom: 8px; }
.feature p { color: var(--text-dim); font-size: .92rem; }

/* ── Presets ── */
.presets { margin-top: 44px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
@media (max-width: 900px) { .presets { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { .presets { grid-template-columns: repeat(2, 1fr); } }
.preset { border: 1px solid var(--border); border-radius: 14px; padding: 20px 16px; text-align: center; background: var(--bg-card); }
.preset .t { font-family: var(--mono); color: var(--green); font-size: 1.4rem; font-weight: 500; }
.preset .n { color: var(--text-dim); font-size: .88rem; margin-top: 4px; }
.preset-note { font-family: var(--mono); font-size: .8rem; color: var(--text-dim); margin-top: 16px; }

/* ── Download cards ── */
.downloads { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
@media (max-width: 900px) { .downloads { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .downloads { grid-template-columns: 1fr; } }
.dl { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; position: relative; }
.dl .icon { font-size: 1.5rem; display: block; margin-bottom: 12px; }
.dl h3 { font-size: 1rem; margin-bottom: 6px; }
.dl p { color: var(--text-dim); font-size: .88rem; }
a.dl { display: block; text-decoration: none; color: inherit; transition: border-color .2s, transform .15s; }
a.dl:hover { border-color: var(--green-dim); transform: translateY(-2px); }
.badge-soon, .badge-ready {
  position: absolute; top: 16px; right: 16px;
  font-family: var(--mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .1em;
  border-radius: 999px; padding: 3px 10px;
}
.badge-soon  { color: var(--blue-bright); border: 1px solid var(--blue); }
.badge-ready { color: var(--green); border: 1px solid var(--green-dim); }

/* ── Figures ── */
.wiring-fig { margin: 44px 0 0; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: var(--bg); }
.wiring-fig img { width: 100%; height: auto; display: block; }
.wiring-fig figcaption {
  padding: 14px 24px; font-family: var(--mono); font-size: .8rem; color: var(--text-dim);
  border-top: 1px solid var(--border); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
.wiring-fig figcaption a { color: var(--green); text-decoration: none; }
.wiring-fig figcaption a:hover { text-decoration: underline; }

/* ── Caveat / note blocks ── */
.caveat {
  margin-top: 28px; border: 1px solid var(--border); border-left: 3px solid var(--blue);
  border-radius: 12px; padding: 22px 26px; background: var(--bg-card);
}
.caveat.ok   { border-left-color: var(--green-dim); }
.caveat.warn { border-left-color: var(--amber); }
.caveat h3 { font-size: 1rem; margin-bottom: 8px; }
.caveat p { color: var(--text-dim); font-size: .92rem; }
.caveat p + p { margin-top: 10px; }
.caveat strong { color: var(--text); }

/* ── Data tables (BOM / specs / reference) ── */
.dtable { margin-top: 44px; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.dtable-scroll { overflow-x: auto; }
.drow { display: grid; grid-template-columns: 260px 1fr; border-bottom: 1px solid var(--border); }
.drow:last-child { border-bottom: none; }
.drow:nth-child(even) { background: var(--bg-card); }
.drow .k { padding: 14px 24px; font-weight: 500; font-size: .95rem; }
.drow .v { padding: 14px 24px; color: var(--text-dim); font-size: .92rem; }
.drow.head { background: var(--bg-card2); }
.drow.head .k, .drow.head .v {
  font-family: var(--mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .14em;
  color: var(--green); padding: 12px 24px;
}
.drow.mono .k { font-family: var(--mono); font-size: .85rem; color: var(--green); font-weight: 400; }
@media (max-width: 600px) { .drow { grid-template-columns: 1fr; } .drow .v { padding-top: 0; } }

/* Parts table with a photo column */
.dtable.with-pics .drow { grid-template-columns: 210px 1fr 150px; align-items: center; }
.dtable.with-pics .drow.head { align-items: stretch; }
.drow .pic { padding: 10px 20px 10px 0; }
.drow .pic a { display: block; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: border-color .2s; }
.drow .pic a:hover { border-color: var(--green); }
.drow .pic img { width: 100%; height: 88px; object-fit: cover; display: block; }
.drow .pic .none {
  height: 88px; border: 1px dashed var(--border); border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: .62rem; color: var(--text-dim); text-align: center; padding: 6px;
}
@media (max-width: 760px) {
  .dtable.with-pics .drow { grid-template-columns: 1fr 130px; }
  .dtable.with-pics .drow .k { grid-column: 1; }
  .dtable.with-pics .drow .v { grid-column: 1; padding-top: 0; }
  .dtable.with-pics .drow .pic { grid-column: 2; grid-row: 1 / span 2; }
  .dtable.with-pics .drow.head .pic { grid-row: 1; }
}
@media (max-width: 480px) {
  .dtable.with-pics .drow { grid-template-columns: 1fr; }
  .dtable.with-pics .drow .pic { grid-column: 1; grid-row: auto; padding: 0 20px 16px; max-width: 220px; }
}

/* ── Gallery ── */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 44px; }
@media (max-width: 820px) { .gallery { grid-template-columns: repeat(2, 1fr); } }
.gallery figure { border-radius: 16px; overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4/5; background: var(--bg-card); }
.gallery img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s; }
.gallery figure:hover img { transform: scale(1.04); }

/* ── Code ── */
pre {
  margin-top: 22px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px 24px; overflow-x: auto; font-family: var(--mono); font-size: .85rem; color: var(--text);
  line-height: 1.7;
}
code { font-family: var(--mono); font-size: .9em; color: var(--green); }
pre code { color: var(--text); font-size: 1em; }

/* ── Ordered list (procedures) ── */
.procedure { margin-top: 28px; counter-reset: step; list-style: none; max-width: 46em; }
.procedure li {
  position: relative; padding-left: 46px; margin-bottom: 20px; color: var(--text-dim);
}
.procedure li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--green-dim); color: var(--green);
  font-family: var(--mono); font-size: .8rem;
  display: flex; align-items: center; justify-content: center;
}
.procedure li strong { color: var(--text); }

/* ── Next-page links ── */
.nextnav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 44px; }
@media (max-width: 640px) { .nextnav { grid-template-columns: 1fr; } }
.nextnav a {
  border: 1px solid var(--border); border-radius: 16px; padding: 24px; text-decoration: none;
  background: var(--bg-card); transition: border-color .2s, transform .15s; display: block;
}
.nextnav a:hover { border-color: var(--green-dim); transform: translateY(-2px); }
.nextnav .lbl { font-family: var(--mono); font-size: .75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .12em; }
.nextnav .ttl { color: var(--text); font-size: 1.1rem; font-weight: 500; margin-top: 6px; }
.nextnav .dsc { color: var(--text-dim); font-size: .9rem; margin-top: 4px; }

/* ── CTA ── */
.final-cta { text-align: center; padding: 90px 0; }
.final-cta h2 { margin-bottom: 12px; }
.final-cta p { color: var(--text-dim); margin-bottom: 32px; }

/* ── Two-column split (text + aside) ── */
.split { display: grid; grid-template-columns: 1.25fr .75fr; gap: 40px; margin-top: 44px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 28px; } }
.split img {
  width: 100%; height: auto; border-radius: 16px;
  border: 1px solid var(--border); display: block;
}

/* ── Big stat row ── */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
@media (max-width: 860px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { border: 1px solid var(--border); border-radius: 16px; padding: 24px; background: var(--bg-card); }
.stat .n { font-family: var(--mono); font-size: 1.9rem; color: var(--green); font-weight: 500; line-height: 1.1; }
.stat .l { color: var(--text-dim); font-size: .88rem; margin-top: 8px; }

/* ── Formula block ── */
.formula {
  margin-top: 28px; background: var(--bg-card2); border: 1px solid var(--green-dim);
  border-radius: 14px; padding: 24px 28px; font-family: var(--mono);
  font-size: 1rem; color: var(--green); overflow-x: auto;
}
.formula small { display: block; color: var(--text-dim); font-size: .8rem; margin-top: 10px; }

/* ── Placeholder for content still to come ── */
.pending {
  margin-top: 28px; border: 1px dashed var(--border); border-radius: 14px;
  padding: 24px 26px; color: var(--text-dim); font-size: .92rem; background: rgba(255,255,255,.012);
}
.pending strong { color: var(--text-dim); }

/* ── Sequence of shots with captions ── */
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
@media (max-width: 820px) { .shots { grid-template-columns: 1fr; max-width: 460px; } }
.shots figure {
  border: 1px solid var(--border); border-radius: 16px; overflow: hidden;
  background: var(--bg-card); display: flex; flex-direction: column;
}
.shots img { width: 100%; height: auto; aspect-ratio: 3/4; object-fit: cover; display: block; }
.shots figcaption { padding: 16px 18px 18px; color: var(--text-dim); font-size: .88rem; border-top: 1px solid var(--border); }
.shots figcaption b {
  display: block; font-family: var(--mono); font-size: .7rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--green); margin-bottom: 7px; font-weight: 500;
}

/* ── Video ── */
.video-wrap {
  margin-top: 28px; border: 1px solid var(--border); border-radius: 16px;
  overflow: hidden; background: var(--bg-card); max-width: 420px;
}
.video-wrap video { width: 100%; height: auto; display: block; }
.video-wrap figcaption { padding: 14px 18px; color: var(--text-dim); font-size: .85rem; border-top: 1px solid var(--border); }

/* ── Footer ── */
footer { border-top: 1px solid var(--border); padding: 32px 0; color: var(--text-dim); font-size: .88rem; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
footer a { color: var(--green); text-decoration: none; }
footer a:hover { text-decoration: underline; }