/* ===========================================================================
   Arduino Werkplaats — gedeeld design-systeem
   Aesthetiek: "veldhandleiding / maker-labboek"
   Warme bijna-zwarte achtergrond, PCB-rood, soldeer-amber, trace-teal.
   =========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,900&family=Hanken+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg:        #17120d;
  --bg-2:      #1f1913;
  --bg-3:      #29211a;
  --bg-panel:  #221b14;

  --ink:       #f4ecdd;
  --ink-soft:  #c3b39c;
  --ink-faint: #8a7a64;

  --red:       #e8402f;   /* het echte PCB-rood */
  --red-deep:  #b32517;
  --amber:     #f4ad3c;   /* soldeer / stapnummers */
  --teal:      #45c7b0;   /* traces / links */
  --green:     #7ec95a;
  --line:      rgba(244, 236, 221, 0.10);
  --line-hard: rgba(244, 236, 221, 0.18);

  --wire-red:   #e8402f;
  --wire-black: #6b5d4d;
  --wire-amber: #f4ad3c;
  --wire-teal:  #45c7b0;
  --wire-blue:  #5b8dd9;
  --wire-green: #7ec95a;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Hanken Grotesk', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, monospace;

  --maxw: 940px;
  --radius: 14px;
  --shadow: 0 20px 50px -20px rgba(0,0,0,0.7);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* blueprint-achtige grid + warme gloed */
  background-image:
    radial-gradient(1100px 600px at 78% -8%, rgba(232,64,47,0.10), transparent 60%),
    radial-gradient(900px 700px at 8% 12%, rgba(69,199,176,0.06), transparent 60%),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: auto, auto, 28px 28px, 28px 28px;
  background-attachment: fixed;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Links ---------- */
a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(23,18,13,0.78);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand {
  font-family: var(--font-mono);
  font-weight: 700; font-size: 14px; letter-spacing: 0.02em;
  color: var(--ink); display: flex; align-items: center; gap: 10px;
}
.brand .dot { width: 11px; height: 11px; border-radius: 50%; background: var(--red);
  box-shadow: 0 0 0 3px rgba(232,64,47,0.2), 0 0 14px var(--red); }
.topbar nav { margin-left: auto; display: flex; gap: 22px; font-family: var(--font-mono); font-size: 13px; }
.topbar nav a { color: var(--ink-soft); }
.topbar nav a:hover { color: var(--ink); text-decoration: none; }

/* ---------- Kickers / labels ---------- */
.kicker {
  font-family: var(--font-mono); font-size: 12px; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--amber);
  display: inline-flex; align-items: center; gap: 10px;
}
.kicker::before { content: ""; width: 26px; height: 1px; background: var(--amber); display: inline-block; }

/* ---------- Typografie ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.08; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 900; margin: 0.2em 0; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin: 0 0 .3em; }
h3 { font-size: 1.28rem; margin: 1.6em 0 .4em; color: var(--ink); }
p { margin: 0 0 1em; }
strong { color: #fff; font-weight: 600; }
.lead { font-size: 1.24rem; color: var(--ink-soft); line-height: 1.55; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; position: relative; }
.hero .meta-row {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px;
}
.chip {
  font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-soft);
  border: 1px solid var(--line-hard); border-radius: 999px; padding: 6px 13px;
  background: rgba(255,255,255,0.02);
}
.chip b { color: var(--amber); font-weight: 700; }

/* ---------- Kaarten / panelen ---------- */
.panel {
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-2));
  border: 1px solid var(--line-hard);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--shadow);
}

/* ---------- Stappen ---------- */
.step { position: relative; padding: 40px 0; border-top: 1px solid var(--line); }
.step-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: .4em; }
.step-num {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(2.4rem, 6vw, 3.6rem); line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px var(--amber);
  flex: none; min-width: 1.4em;
}
.step-head h2 { margin: 0; }

/* ---------- Callouts ---------- */
.note {
  border-left: 3px solid var(--teal);
  background: rgba(69,199,176,0.07);
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 18px 0;
  font-size: 0.97rem;
}
.note.warn { border-left-color: var(--red); background: rgba(232,64,47,0.09); }
.note.tip  { border-left-color: var(--amber); background: rgba(244,173,60,0.08); }
.note .t { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.16em;
  text-transform: uppercase; font-weight: 700; display: block; margin-bottom: 4px; }
.note.warn .t { color: var(--red); }
.note.tip .t  { color: var(--amber); }
.note:not(.warn):not(.tip) .t { color: var(--teal); }

/* ---------- Tabellen (bedrading) ---------- */
.tbl { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.94rem; overflow: hidden;
  border-radius: 10px; border: 1px solid var(--line-hard); }
.tbl th, .tbl td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.tbl th { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-faint); background: rgba(0,0,0,0.2); }
.tbl tr:last-child td { border-bottom: none; }
.tbl td.pin { font-family: var(--font-mono); font-weight: 700; color: var(--ink); }
.tbl .wire { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 0.86rem; }
.tbl .wire::before { content: ""; width: 22px; height: 4px; border-radius: 2px; background: var(--w, var(--ink-soft)); }

/* ---------- Code ---------- */
.code {
  margin: 20px 0; border-radius: 12px; overflow: hidden;
  border: 1px solid var(--line-hard); background: #140f0a;
}
.code-bar {
  display: flex; align-items: center; gap: 10px; padding: 9px 14px;
  background: rgba(0,0,0,0.35); border-bottom: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint);
}
.code-bar .fname { color: var(--ink-soft); }
.code-bar .lights { display: flex; gap: 6px; margin-right: 6px; }
.code-bar .lights i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.code-bar .copy {
  margin-left: auto; cursor: pointer; border: 1px solid var(--line-hard);
  background: transparent; color: var(--ink-soft); font-family: var(--font-mono);
  font-size: 11px; padding: 4px 10px; border-radius: 6px; transition: .15s;
}
.code-bar .copy:hover { color: var(--ink); border-color: var(--amber); }
.code pre { margin: 0; padding: 18px 20px; overflow-x: auto; }
.code code { font-family: var(--font-mono); font-size: 13.5px; line-height: 1.7; color: #e9dcc6; }
/* mini "syntax" tinten via spans */
.code .c  { color: #7a6b57; font-style: italic; }   /* comment  */
.code .k  { color: #f4ad3c; }                        /* keyword  */
.code .f  { color: #45c7b0; }                        /* functie  */
.code .n  { color: #e8927c; }                        /* getal    */
.code .s  { color: #a6d977; }                        /* string   */
.code .p  { color: #b8a993; }                        /* preproc  */

/* ---------- Figuren ---------- */
figure { margin: 26px 0; }
figure svg { width: 100%; height: auto; display: block; border-radius: 12px;
  border: 1px solid var(--line-hard); background: #130e09; }
figcaption { font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint);
  margin-top: 10px; text-align: center; }
figcaption b { color: var(--amber); }

/* ---------- Overzicht (index) ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }
.card {
  display: flex; flex-direction: column; text-decoration: none; color: inherit;
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-2));
  border: 1px solid var(--line-hard); border-radius: var(--radius);
  overflow: hidden; transition: transform .18s ease, border-color .18s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--amber); text-decoration: none; }
.card .thumb { height: 150px; display: grid; place-items: center; background: #130e09; border-bottom: 1px solid var(--line); }
.card .thumb svg { width: 100%; height: 100%; }
.card .body { padding: 20px 22px 24px; }
.card .tag { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--amber); }
.card h3 { margin: 8px 0 6px; font-family: var(--font-display); }
.card p { color: var(--ink-soft); font-size: 0.95rem; margin: 0; }
.card.soon { opacity: 0.5; pointer-events: none; }
.card .status { margin-top: 14px; font-family: var(--font-mono); font-size: 12px; color: var(--teal); }
.card.soon .status { color: var(--ink-faint); }

/* ---------- Onderdelen (echte foto's) ---------- */
.parts { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 22px; margin: 22px 0 10px; }
.part {
  display: flex; flex-direction: column; scroll-margin-top: 90px;
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-2));
  border: 1px solid var(--line-hard); border-radius: var(--radius); overflow: hidden;
}
.part .shot { background: #fff; height: 190px; border-bottom: 1px solid var(--line); }
.part .shot img { width: 100%; height: 100%; object-fit: contain; display: block; }
.part .body { padding: 18px 20px 22px; }
.part .tag { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--amber); }
.part h3 { margin: 7px 0 4px; font-family: var(--font-display); font-size: 1.15rem; }
.part .sub { font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint); margin: 0 0 12px; }
.part .look { color: var(--ink-soft); font-size: 0.93rem; margin: 0 0 12px; }
.part .look b { color: var(--ink); }
.part .pins { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 12px; }
.part .pins span { font-family: var(--font-mono); font-size: 11px; color: var(--teal);
  border: 1px solid var(--line-hard); border-radius: 5px; padding: 2px 7px; }
.part .used { font-family: var(--font-mono); font-size: 11.5px; color: var(--ink-faint); margin: 0; }
.part .used a { color: var(--ink-soft); }

/* "Wat je nodig hebt"-lijst met miniatuurfoto's */
ul.needs { list-style: none; padding-left: 0; margin: 16px 0; }
ul.needs li { display: grid; grid-template-columns: 92px 1fr; gap: 16px; align-items: center; margin: 14px 0; }
/* regels zonder foto: lege eerste kolom met een pijltje, zodat de tekst uitlijnt met de rest */
ul.needs li.geenfoto::before { content: "▸"; color: var(--amber); text-align: center; }
ul.needs .pt { display: block; border: 1px solid var(--line-hard); border-radius: 8px;
  overflow: hidden; background: #fff; transition: border-color .15s ease; }
ul.needs .pt:hover { border-color: var(--amber); }
ul.needs .pt img { display: block; width: 100%; height: 70px; object-fit: contain; }
@media (max-width: 520px) { ul.needs li { grid-template-columns: 68px 1fr; gap: 12px; } }

/* ---------- Inhoudsopgave ---------- */
.toc { position: sticky; top: 76px; }
.toc ol { list-style: none; margin: 0; padding: 0; counter-reset: t; }
.toc li { counter-increment: t; margin: 2px 0; }
.toc a { display: block; padding: 7px 12px; border-radius: 8px; color: var(--ink-soft);
  font-size: 0.9rem; border-left: 2px solid transparent; }
.toc a::before { content: counter(t, decimal-leading-zero) "  "; font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-faint); }
.toc a:hover { background: rgba(255,255,255,0.03); color: var(--ink); text-decoration: none; border-left-color: var(--amber); }

.layout { display: grid; grid-template-columns: 220px 1fr; gap: 44px; align-items: start; }
/* zonder dit rekken lange coderegels de kolom op i.p.v. binnen het codeblok te scrollen */
.layout > * { min-width: 0; }

/* Scherm-afhankelijke blokken (schermkiezer in de projecten): verberg wat niet gekozen is.
   Bewust géén display op de zichtbare variant, zodat li/figure hun eigen layout houden. */
.sc:not(.on) { display: none; }
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } .toc { display: none; } }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); margin-top: 60px; padding: 40px 0 70px;
  color: var(--ink-faint); font-family: var(--font-mono); font-size: 12.5px; }
footer a { color: var(--ink-soft); }

/* ---------- Kbd / inline code ---------- */
kbd { font-family: var(--font-mono); font-size: 0.82em; background: var(--bg-3);
  border: 1px solid var(--line-hard); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; color: var(--ink); }
code.inl { font-family: var(--font-mono); font-size: 0.86em; background: rgba(255,255,255,0.05);
  padding: 1px 6px; border-radius: 5px; color: var(--amber); }

ul.clean { list-style: none; padding-left: 0; }
ul.clean li { padding-left: 26px; position: relative; margin: 8px 0; }
ul.clean li::before { content: "▸"; position: absolute; left: 4px; color: var(--amber); }

.hr-trace { height: 1px; background: repeating-linear-gradient(90deg, var(--line-hard) 0 8px, transparent 8px 16px); border: 0; margin: 40px 0; }