/* ---------- tokens (light is the base) ---------- */
:root {
  --bg:        #ffffff;
  --bg-alt:    #f6f7f9;
  --fg:        #16191d;
  --fg-muted:  #5a6270;
  --fg-faint:  #6b7280;
  --line:      #e2e5ea;
  --line-soft: #edeff3;
  --accent:    #b45309;
  --accent-fg: #ffffff;
  --accent-bg: #fdf6ec;
  --node:      #ffffff;
  --node-alt:  #fdf6ec;
  --node-mach: #eef1f5;
  --node-ai:   #f2f7f4;
  --ok:        #15803d;
  --ok-bg:     #eef7f1;

  --radius: 10px;
  --wrap: 940px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg:        #0d1117;
    --bg-alt:    #12181f;
    --fg:        #e7ecf2;
    --fg-muted:  #9aa5b4;
    --fg-faint:  #7d8899;
    --line:      #232c37;
    --line-soft: #1a222c;
    --accent:    #f0a842;
    --accent-fg: #1a1206;
    --accent-bg: #1f1809;
    --node:      #141c25;
    --node-alt:  #1f1809;
    --node-mach: #1a222c;
    --node-ai:   #10201a;
    --ok:        #5dd39e;
    --ok-bg:     #0f2119;
  }
}

:root[data-theme="dark"] {
  --bg:        #0d1117;
  --bg-alt:    #12181f;
  --fg:        #e7ecf2;
  --fg-muted:  #9aa5b4;
  --fg-faint:  #7d8899;
  --line:      #232c37;
  --line-soft: #1a222c;
  --accent:    #f0a842;
  --accent-fg: #1a1206;
  --accent-bg: #1f1809;
  --node:      #141c25;
  --node-alt:  #1f1809;
  --node-mach: #1a222c;
  --node-ai:   #10201a;
  --ok:        #5dd39e;
  --ok-bg:     #0f2119;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
code {
  font-family: var(--mono);
  font-size: .88em;
  background: var(--bg-alt);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: .1em .35em;
}
img { max-width: 100%; }

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

.skip {
  position: absolute; left: -9999px;
  background: var(--accent); color: var(--accent-fg);
  padding: 10px 16px; border-radius: 0 0 var(--radius) 0; z-index: 100;
}
.skip:focus { left: 0; top: 0; }

/* ---------- topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.row { display: flex; align-items: center; gap: 20px; height: 62px; }

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; letter-spacing: -.01em; text-decoration: none;
  font-size: 15px; white-space: nowrap;
}
.brand-mark {
  width: 11px; height: 11px; border-radius: 3px;
  background: var(--accent); flex: none;
}

.nav { margin-left: auto; display: flex; gap: 22px; font-size: 14.5px; }
.nav a { color: var(--fg-muted); text-decoration: none; }
.nav a:hover { color: var(--fg); }

.lang {
  display: flex; align-items: center; gap: 0;
  margin: 0; font-family: var(--mono); font-size: 12.5px;
  border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
  flex: none;
}
.lang > * {
  padding: 6px 9px; line-height: 1;
  text-decoration: none; color: var(--fg-muted);
}
.lang > a:hover { color: var(--fg); background: var(--bg-alt); }
.lang .lang-on {
  background: var(--accent); color: var(--accent-fg); font-weight: 500;
}

.icon-btn {
  background: transparent; border: 1px solid var(--line);
  color: var(--fg-muted); border-radius: 8px;
  width: 34px; height: 34px; cursor: pointer; font-size: 15px;
  line-height: 1; flex: none;
}
.icon-btn:hover { color: var(--fg); border-color: var(--fg-faint); }

/* ---------- hero ---------- */
.hero { padding: 92px 0 76px; }
.kicker {
  margin: 0 0 20px;
  font-family: var(--mono); font-size: 12.5px;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent);
}
h1 {
  margin: 0 0 24px;
  font-size: clamp(2.3rem, 6vw, 3.9rem);
  line-height: 1.08; letter-spacing: -.035em; font-weight: 700;
}
.lede {
  margin: 0 0 28px; max-width: 60ch;
  font-size: 1.12rem; color: var(--fg-muted);
}
.meta { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 32px; }
.pill {
  font-size: 13px; padding: 5px 13px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--fg-muted);
}
.pill-on {
  color: var(--ok); background: var(--ok-bg);
  border-color: color-mix(in srgb, var(--ok) 32%, transparent);
  font-weight: 500;
}

.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }
.btn {
  display: inline-block; text-decoration: none;
  padding: 11px 20px; border-radius: 8px;
  border: 1px solid var(--line); color: var(--fg);
  font-size: 15px; font-weight: 500;
}
.btn:hover { border-color: var(--fg-faint); background: var(--bg-alt); }
.btn-primary {
  background: var(--accent); border-color: var(--accent); color: var(--accent-fg);
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); opacity: .9; }
.btn-sm { padding: 7px 14px; font-size: 14px; }

/* ---------- bands & sections ---------- */
.band {
  background: var(--bg-alt);
  border-block: 1px solid var(--line);
  padding: 68px 0;
}
.section { padding: 76px 0; }

.band-title, .sec-title {
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  letter-spacing: -.025em; font-weight: 700;
}
.band-lede, .sec-note {
  margin: 0 0 36px; max-width: 62ch; color: var(--fg-muted);
}
.sec-note { font-size: 15px; }

/* ---------- diagram ---------- */
.diagram { margin: 0; overflow-x: auto; }
.diagram svg { display: block; min-width: 660px; width: 100%; height: auto; }

.node { fill: var(--node); stroke: var(--line); stroke-width: 1.5; }
.node-alt { fill: var(--node-alt); stroke: var(--accent); }
.node-machine { fill: var(--node-mach); stroke: var(--fg-faint); }
.node-ai { fill: var(--node-ai); stroke: var(--ok); }

.node-t {
  fill: var(--fg); font-family: var(--mono); font-size: 13px;
  font-weight: 500; text-anchor: middle;
}
.node-t.sm { font-size: 12px; }
.node-s {
  fill: var(--fg-muted); font-family: var(--sans);
  font-size: 11.5px; text-anchor: middle;
}
.edge { fill: none; stroke: var(--fg-faint); stroke-width: 1.5; }
.edge.dash { stroke-dasharray: 5 4; }
.head { fill: var(--fg-faint); }
.edge-t {
  fill: var(--fg-faint); font-family: var(--mono);
  font-size: 11px; text-anchor: middle;
}
.edge-t.rot { text-anchor: start; }

/* ---------- projects ---------- */
.proj {
  border-top: 1px solid var(--line);
  padding: 34px 0 30px;
}
.proj:last-of-type { border-bottom: 1px solid var(--line); }

.proj-h {
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: 8px 18px; margin-bottom: 14px;
}
.proj-h h3 { margin: 0; font-size: 1.28rem; letter-spacing: -.02em; }
.proj-h h3 a {
  font-family: var(--mono); font-weight: 600;
  text-decoration: none; border-bottom: 2px solid var(--accent);
  padding-bottom: 1px;
}
.proj-h h3 a:hover { color: var(--accent); }

.tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; }
.tags span {
  font-family: var(--mono); font-size: 11.5px;
  padding: 3px 9px; border-radius: 5px;
  background: var(--bg-alt); border: 1px solid var(--line-soft);
  color: var(--fg-muted);
}
.band .tags span { background: var(--bg); }

.proj p { margin: 0 0 14px; max-width: 68ch; }
.proj-lede { font-size: 1.06rem; font-weight: 500; }
.proj p:not(.proj-lede):not(.proj-links) { color: var(--fg-muted); }

.proj-hi {
  border-left: 3px solid var(--accent);
  background: var(--accent-bg);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 15.5px;
}
.proj-hi a { color: var(--accent); }

.proj-links {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 14px; margin-top: 20px !important;
}
.badge { height: 20px; }

/* ---------- stack grid ---------- */
.grid {
  display: grid; gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  margin-bottom: 34px;
}
.cell {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px;
}
.cell h3 {
  margin: 0 0 8px; font-size: 14px;
  font-family: var(--mono); font-weight: 500; color: var(--accent);
}
.cell p { margin: 0; font-size: 14.5px; color: var(--fg-muted); line-height: 1.6; }

.note {
  margin: 0; max-width: 66ch;
  color: var(--fg-muted); font-size: 15.5px;
}

/* ---------- contact & footer ---------- */
.contact .lede { margin-bottom: 26px; }

.foot {
  border-top: 1px solid var(--line);
  padding: 28px 0; color: var(--fg-faint); font-size: 14px;
}
.foot p { margin: 0; }

/* ---------- responsive ---------- */
@media (max-width: 620px) {
  body { font-size: 16px; }
  .hero { padding: 60px 0 52px; }
  .section, .band { padding: 52px 0; }
  .nav { gap: 13px; font-size: 13.5px; }
  .nav .ext { display: none; }
  .lang { font-size: 11.5px; }
  .lang > * { padding: 5px 6px; }
  .row { gap: 12px; }
  .brand { font-size: 0; gap: 0; }
  .brand-mark { width: 13px; height: 13px; }
}

/* Abaixo de 430px a barra nao comporta 3 links + idioma + tema sem empurrar
   o botao de tema para fora da viewport: o link de contato sai (a secao
   continua alcancavel rolando e pelo rodape). */
@media (max-width: 430px) {
  .nav { gap: 11px; font-size: 13px; }
  .nav a[href="#contact"] { display: none; }
  .row { gap: 9px; }
  .wrap { padding: 0 16px; }
}

/* ---------- interactive demos ---------- */
.demo {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 22px;
}
.band .demo { background: var(--bg); }

.demo-head h3 {
  margin: 0 0 6px; font-size: 1.1rem; letter-spacing: -.02em;
}
.demo-head p {
  margin: 0 0 18px; color: var(--fg-muted);
  font-size: 15px; max-width: 66ch;
}

.demo-modes { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.dm-btn {
  font-family: var(--mono); font-size: 13px;
  padding: 7px 14px; border-radius: 7px;
  border: 1px solid var(--line); background: transparent;
  color: var(--fg-muted); cursor: pointer;
}
.dm-btn:hover { color: var(--fg); border-color: var(--fg-faint); }
.dm-btn.is-on {
  background: var(--accent); border-color: var(--accent);
  color: var(--accent-fg); font-weight: 500;
}

.demo-rate {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 18px; flex-wrap: wrap;
}
.demo-rate label { font-size: 14px; color: var(--fg-muted); white-space: nowrap; }
.demo-rate input[type=range] { flex: 1; min-width: 140px; accent-color: var(--accent); }
.demo-rate output {
  font-family: var(--mono); font-size: 13px;
  min-width: 72px; text-align: right; color: var(--fg);
}

.buf { margin-bottom: 18px; }
.buf-label {
  display: flex; justify-content: space-between;
  font-size: 13px; color: var(--fg-muted); margin-bottom: 6px;
}
.buf-label span:last-child { font-family: var(--mono); }
.buf-track {
  position: relative; height: 26px;
  background: var(--bg-alt); border: 1px solid var(--line);
  border-radius: 6px; overflow: hidden;
}
.buf-fill {
  height: 100%; width: 0;
  background: var(--ok); transition: width .05s linear;
}
.buf-fill.is-hot { background: #d9534f; }
.buf-mark { position: absolute; top: 0; bottom: 0; width: 2px; background: var(--fg-faint); z-index: 2; opacity: .55; }
.buf-legend {
  display: flex; align-items: center; gap: 10px;
  margin-top: 7px; font-size: 12.5px; color: var(--fg-faint);
}
.sig {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  padding: 2px 8px; border-radius: 4px;
  background: var(--ok-bg); color: var(--ok);
  border: 1px solid color-mix(in srgb, var(--ok) 30%, transparent);
}
.sig.sig-off {
  background: #fdecea; color: #c0392b; border-color: #e8b4ae;
}
:root[data-theme="dark"] .sig.sig-off,
:root:not([data-theme="light"]) .sig.sig-off { background: #2a1512; color: #f0918a; border-color: #5a2c25; }

.stats { display: flex; flex-wrap: wrap; gap: 26px; margin-bottom: 14px; }
.stat b {
  display: block; font-family: var(--mono);
  font-size: 1.35rem; line-height: 1.2; font-weight: 500;
}
.stat span { font-size: 12.5px; color: var(--fg-faint); }
.stat-bad b { color: #c0392b; }
:root[data-theme="dark"] .stat-bad b,
:root:not([data-theme="light"]) .stat-bad b { color: #f0918a; }

.verdict {
  margin: 0 0 16px; padding: 11px 14px;
  border-left: 3px solid var(--line); background: var(--bg-alt);
  border-radius: 0 6px 6px 0;
  font-size: 14.5px; color: var(--fg-muted); min-height: 3.2em;
}
.verdict.is-bad { border-left-color: #c0392b; }
.verdict.is-good { border-left-color: var(--ok); }
.verdict b { color: var(--fg); }

.demo-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* g-code viewer */
.gc-grid {
  display: grid; gap: 16px; margin-bottom: 16px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
}
#gc-src {
  font-family: var(--mono); font-size: 12.5px; line-height: 1.55;
  width: 100%; min-height: 300px; resize: vertical;
  padding: 12px; border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--bg-alt); color: var(--fg);
}
#gc-src:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.gc-canvas-wrap {
  border: 1px solid var(--line); border-radius: 7px;
  background: var(--bg-alt); padding: 8px;
  display: flex; align-items: center; justify-content: center;
}
#gc-canvas { width: 100%; height: auto; display: block; }

@media (max-width: 720px) {
  .gc-grid { grid-template-columns: 1fr; }
  #gc-src { min-height: 190px; }
  .demo { padding: 16px; }
  .stats { gap: 18px; }
}

/* ================= v2: vitrine visual e projetos compactos ================= */

/* --- hero mais pessoal --- */
.hero-grid {
  display: grid; gap: 34px; align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 860px) {
  .hero-grid { grid-template-columns: 1fr auto; gap: 48px; }
}
.avatar {
  width: 168px; height: 168px; border-radius: 50%;
  object-fit: cover; border: 3px solid var(--accent);
  display: block;
}
.avatar-ph {
  width: 168px; height: 168px; border-radius: 50%;
  border: 2px dashed var(--line);
  display: grid; place-items: center; text-align: center;
  color: var(--fg-faint); font-size: 12px; padding: 18px;
  font-family: var(--mono); line-height: 1.5;
}

/* --- vitrine: capturas reais --- */
.shots { display: grid; gap: 26px; grid-template-columns: 1fr; }
/* Uma coluna de proposito: a 450px a interface capturada fica ilegivel, e a
   captura so convence se der para ler o que esta na tela. */

.shot {
  margin: 0; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  background: var(--bg);
}
.shot img {
  display: block; width: 100%; height: auto;
  border-bottom: 1px solid var(--line);
  cursor: zoom-in;
}
.shot figcaption {
  padding: 13px 16px; font-size: 14px; color: var(--fg-muted);
}
.shot figcaption b { color: var(--fg); font-weight: 600; display: block; margin-bottom: 2px; }

/* lightbox */
.lb {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(8,10,14,.93);
  display: none; place-items: center; padding: 3vmin;
}
.lb.is-open { display: grid; }
.lb img { max-width: 100%; max-height: 92vh; border-radius: 6px; }
.lb-close {
  position: absolute; top: 14px; right: 18px;
  background: transparent; border: 0; cursor: pointer;
  color: #fff; font-size: 30px; line-height: 1; padding: 6px 12px;
}

/* --- grid de projetos --- */
.pgrid { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 700px) { .pgrid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1000px) { .pgrid.pgrid-3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; background: var(--bg);
  display: flex; flex-direction: column; gap: 9px;
}
.band .card { background: var(--bg); }
.card-h { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.card-h h3 { margin: 0; font-size: 1.02rem; letter-spacing: -.015em; }
.card-h h3 a { font-family: var(--mono); font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--accent); }
.card-h h3 a:hover { color: var(--accent); }
.card-h h3 span.nolink { font-family: var(--mono); font-weight: 600; }
.card p { margin: 0; font-size: 14.5px; color: var(--fg-muted); }
.card .tags span { font-size: 11px; padding: 2px 7px; }

.badge-state {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .04em;
  text-transform: uppercase; padding: 3px 8px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--fg-faint);
  white-space: nowrap;
}
.badge-state.is-live { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); background: var(--ok-bg); }
.badge-state.is-test { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, transparent); background: var(--accent-bg); }

/* --- detalhes recolhidos --- */
details.more { margin-top: 4px; }
details.more > summary {
  cursor: pointer; list-style: none;
  font-size: 13.5px; color: var(--accent);
  font-family: var(--mono); padding: 3px 0;
}
details.more > summary::-webkit-details-marker { display: none; }
details.more > summary::before { content: "+ "; font-weight: 700; }
details.more[open] > summary::before { content: "– "; }
details.more > summary:hover { text-decoration: underline; }
details.more .more-body {
  padding-top: 9px; font-size: 14.5px; color: var(--fg-muted);
  line-height: 1.6;
}
details.more .more-body p { margin: 0 0 10px; }
details.more .more-body p:last-child { margin-bottom: 0; }

/* --- chips de stack --- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 30px; }
.chip {
  font-family: var(--mono); font-size: 12.5px;
  padding: 6px 12px; border-radius: 7px;
  border: 1px solid var(--line); background: var(--bg);
  color: var(--fg-muted);
}
.chip-h {
  background: var(--accent); border-color: var(--accent);
  color: var(--accent-fg); font-weight: 500;
}

.subhead {
  font-size: 12px; font-family: var(--mono); text-transform: uppercase;
  letter-spacing: .09em; color: var(--fg-faint);
  margin: 30px 0 12px;
}

/* --- vitrine v3: galeria por sistema + numeros --- */
.shot-group { margin-bottom: 34px; }
.shot-group:last-child { margin-bottom: 0; }
.shot-group > h3 {
  margin: 0 0 4px; font-size: 1.05rem; letter-spacing: -.015em;
}
.shot-group > h3 .st {
  font-family: var(--mono); font-size: 11.5px; font-weight: 400;
  color: var(--fg-faint); margin-left: 9px;
}
.shot-group > p.gl {
  margin: 0 0 16px; font-size: 14.5px; color: var(--fg-muted); max-width: 68ch;
}
.shots-2 { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 820px) { .shots-2 { grid-template-columns: 1fr 1fr; } }

/* faixa de numeros reais */
.figures {
  display: grid; gap: 16px; margin: 0 0 34px;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 700px) { .figures { grid-template-columns: repeat(4, 1fr); } }
.fig {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; background: var(--bg);
}
.fig b {
  display: block; font-family: var(--mono);
  font-size: 1.5rem; line-height: 1.1; font-weight: 500;
  color: var(--accent); letter-spacing: -.02em;
}
.fig span { font-size: 12.5px; color: var(--fg-muted); display: block; margin-top: 5px; }