/* styles.css  Rafael MR portfolio v5 · editorial-meets-terminal */

:root {
  /* Warm-dark palette in oklch */
  --bg:        oklch(0.155 0.008 60);
  --bg-1:      oklch(0.185 0.010 60);
  --bg-2:      oklch(0.215 0.012 60);
  --hairline:  oklch(0.30 0.012 60);
  --hairline-strong: oklch(0.40 0.015 60);
  --fg:        oklch(0.96 0.005 80);
  --fg-1:      oklch(0.85 0.006 75);
  --fg-2:      oklch(0.66 0.008 70);
  --fg-3:      oklch(0.585 0.010 65);

  /* Accent (toggleable via Tweaks) */
  --accent:    oklch(0.80 0.16 75);   /* amber default */
  --accent-deep: oklch(0.55 0.16 60);
  --accent-ink:  oklch(0.18 0.05 70);

  --grid-unit: 8px;
  --maxw: 1320px;
  --pad: clamp(20px, 4vw, 64px);

  --serif: "Instrument Serif", "Newsreader", Cardo, Georgia, serif;
  --sans:  "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono:  "JetBrains Mono", "IBM Plex Mono", ui-monospace, monospace;
}

/* Accent variants applied by data-accent on <html> */
html[data-accent="amber"] { --accent: oklch(0.80 0.16 75);  --accent-deep: oklch(0.55 0.16 60); }
html[data-accent="lime"]  { --accent: oklch(0.85 0.18 130); --accent-deep: oklch(0.55 0.17 130); }
html[data-accent="cyan"]  { --accent: oklch(0.82 0.13 210); --accent-deep: oklch(0.55 0.13 210); }
html[data-accent="rose"]  { --accent: oklch(0.78 0.17 15);  --accent-deep: oklch(0.55 0.17 15); }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  background-image:
    radial-gradient(1200px 600px at 80% -10%, oklch(0.25 0.02 70 / 0.6), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, oklch(0.22 0.015 60 / 0.5), transparent 60%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: default; padding: 0; }

/* Subtle film grain overlay */
body::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none; z-index: 1;
  opacity: 0.035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* ─────────── Typography utilities ─────────── */
.serif      { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; }
.mono       { font-family: var(--mono);  font-feature-settings: "ss01","cv02"; }
.sans       { font-family: var(--sans);  letter-spacing: -0.005em; }
.label      { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); }
.eyebrow    { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); }
.italic     { font-style: italic; }
.muted      { color: var(--fg-2); }
.muted-2    { color: var(--fg-3); }

/* ─────────── Layout ─────────── */
.page { position: relative; z-index: 2; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }

/* Section frame */
section.sect { padding-block: clamp(64px, 9vw, 132px); position: relative; }
section.sect + section.sect { border-top: 1px solid var(--hairline); }

.sect-head {
  display: grid; grid-template-columns: 120px 1fr; gap: 24px;
  margin-bottom: clamp(28px, 4vw, 56px);
  align-items: baseline;
}
.sect-head .num { font-family: var(--mono); color: var(--fg-3); font-size: 12px; letter-spacing: 0.14em; padding-top: 8px; }
.sect-head h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 5vw, 64px); line-height: 1.02; margin: 0; letter-spacing: -0.02em; color: var(--fg); }
.sect-head h2 em { font-style: italic; color: var(--accent); }
.sect-head .sub { grid-column: 2; color: var(--fg-2); max-width: 60ch; margin-top: 12px; font-size: 15px; }

@media (max-width: 720px) {
  .sect-head { grid-template-columns: 80px 1fr; gap: 12px; }
}

/* ─────────── TopBar ─────────── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: oklch(0.155 0.008 60 / 0.72);
  border-bottom: 1px solid var(--hairline);
}
.topbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px var(--pad);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; min-height: 44px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; }
.brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.brand b { font-weight: 600; }
.nav { display: flex; align-items: center; gap: 18px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; }
.nav a, .nav > div{ color: var(--fg-2); transition: color .15s; display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; cursor: pointer;}
.nav > div { color: var(--fg);}
.nav > div:hover { color: var(--accent);}
.nav a:hover { color: var(--fg); }
.kbd {
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  font-family: var(--mono); font-size: 10.5px; padding: 4px 8px;
  min-height: 44px; min-width: 44px;
  border: 1px solid var(--hairline); border-radius: 6px; color: var(--fg-2);
  background: oklch(0.20 0.01 60 / 0.5);
  transition: all .15s;
}
.kbd:hover { color: var(--fg); border-color: var(--hairline-strong); }
@media (max-width: 720px) { .nav .navlink:not(.lang) { display: none; } }

/* ─────────── Hero ─────────── */
.hero { padding-block: clamp(80px, 12vw, 50px) clamp(60px, 8vw, 20px); position: relative; }
.hero-meta {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em; color: var(--fg-3);
  text-transform: uppercase;
  padding-bottom: 32px; border-bottom: 1px solid var(--hairline);
  margin-bottom: clamp(40px, 7vw, 96px);
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.hero-meta .live { color: var(--accent); }
.hero-meta .live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: pulse 1.6s ease-in-out infinite; }
  @keyframes pulse { 50% { opacity: 0.4; } }

.hero h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(56px, 11vw, 168px);
  line-height: 0.92; letter-spacing: -0.035em;
  margin: 0 0 32px; color: var(--fg);
}
.hero h1 .it { font-style: italic; color: var(--accent); }
.hero h1 .amp { font-style: italic; color: var(--fg-3); padding: 0 0.05em; }

  .hero .herocurricullum { font-style: italic; font-size: clamp(30px, 0.6vw, 168px); animation: pulse 1.6s ease-in-out infinite; 
    font-family: 'JetBrains Mono'; color: var(--accent);  display: flex; }
    @media (max-width: 480px) {
    .hero .herocurricullum {
        font-size: clamp(10px, 5vw, 56px);
    }
.hero-grid {
  display: grid; grid-template-columns: 1.4fr 1fr;
  gap: clamp(32px, 5vw, 80px); align-items: end;
  margin-top: clamp(40px, 6vw, 80px);
}
.hero-tagline {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  font-size: clamp(22px, 2.6vw, 32px); line-height: 1.25;
  color: var(--fg-1); max-width: 22ch;
}
.hero-tagline em { color: var(--accent); font-style: italic; }
.hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px 32px; }
.hero-stats .lbl { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 6px; }
.hero-stats .val { font-family: var(--serif); font-size: 28px; line-height: 1; color: var(--fg); }
.hero-stats .val a { display: inline-flex; align-items: center; min-height: 44px; color: var(--fg); border-bottom: 1px solid var(--hairline-strong); transition: border-color .2s; padding-bottom: 2px; }
.hero-stats .val a:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 800px) { .hero-grid { grid-template-columns: 1fr; gap: 28px; } }

/* Scroll indicator */
.scroll-cue {
  display: flex; align-items: center; gap: 12px; margin-top: clamp(56px, 8vw, 96px);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3);
}
.scroll-cue .line { flex: 0 0 60px; height: 1px; background: var(--fg-3); position: relative; overflow: hidden; }
.scroll-cue .line::after { content: ""; position: absolute; inset: 0; background: var(--accent); transform: translateX(-100%); animation: cue 2.2s ease-in-out infinite; }
@keyframes cue { 50% { transform: translateX(0); } 100% { transform: translateX(110%); } }

/* ─────────── Manifesto / Principles ─────────── */
.principles { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
.principle { background: var(--bg); padding: clamp(24px, 3vw, 40px); min-height: 220px; display: flex; flex-direction: column; gap: 14px; transition: background .2s; }
.principle:hover { background: var(--bg-1); }
.principle .n { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; color: var(--accent); }
.principle .t { font-family: var(--serif); font-size: clamp(22px, 2.3vw, 30px); line-height: 1.15; color: var(--fg); margin: 0; letter-spacing: -0.015em; }
.principle .d { color: var(--fg-2); font-size: 14.5px; line-height: 1.55; margin: 0; }
@media (max-width: 720px) { .principles { grid-template-columns: 1fr; } }

/* ─────────── Stack ─────────── */
.stack-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
.stack-cell { background: var(--bg); padding: 22px 24px; }
.stack-cell h4 { font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin: 0 0 14px; }
.stack-cell ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.stack-cell li { font-family: var(--mono); font-size: 13px; color: var(--fg-1); display: flex; align-items: baseline; gap: 8px; }
.stack-cell li::before { content: "→"; color: var(--fg-3); font-size: 10px; }
@media (max-width: 800px) { .stack-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .stack-grid { grid-template-columns: 1fr; } }

.rules-banner {
  margin-top: 24px; padding: 18px 24px; border: 1px solid var(--hairline);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px 24px;
  background: var(--bg-1);
}
.rules-banner .rk { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.1em; }
.rules-banner .rv { font-family: var(--mono); font-size: 12px; color: var(--fg-1); }
.rules-banner .row { display: flex; gap: 10px; align-items: baseline; }
@media (max-width: 720px) { .rules-banner { grid-template-columns: 1fr; } }

/* ─────────── LEDGB Feature ─────────── */
.ledgb {
  border: 1px solid var(--hairline);
  background:
    linear-gradient(180deg, oklch(0.18 0.012 60) 0%, oklch(0.165 0.008 60) 100%);
  overflow: hidden;
  position: relative;
}
.ledgb::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(600px 300px at 90% -10%, oklch(0.45 0.13 75 / 0.18), transparent 60%);
}
.ledgb-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 0; position: relative; }
.ledgb-left { padding: clamp(28px, 4vw, 56px); border-right: 1px solid var(--hairline); }
.ledgb-tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
.ledgb-tag .pill { padding: 3px 8px; border: 1px solid var(--accent); border-radius: 999px; }
.ledgb-brand { display: flex; align-items: center; gap: 18px; margin-bottom: 22px; }
.ledgb-logo {
  width: 64px; height: 64px; border-radius: 14px;
  background: oklch(0.18 0.012 60);
  border: 1px solid var(--hairline);
  padding: 6px;
  flex: 0 0 auto;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25), 0 0 0 1px var(--hairline) inset;
}
.ledgb-sub { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); margin-top: 6px; }
.ledgb h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 4.6vw, 60px); line-height: 0.98; letter-spacing: -0.025em; margin: 0; }
.ledgb h3 em { color: var(--accent); font-style: italic; }
.ledgb .pitch { color: var(--fg-1); font-size: 16px; max-width: 52ch; margin: 0 0 28px; }
.ledgb-bullets { list-style: none; padding: 0; margin: 0 0 28px; display: flex; flex-direction: column; gap: 10px; }
.ledgb-bullets li { font-family: var(--mono); font-size: 12.5px; color: var(--fg-1); display: flex; gap: 10px; line-height: 1.5; }
.ledgb-bullets li::before { content: "▸"; color: var(--accent); flex: 0 0 auto; }
.ledgb-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-family: var(--mono); font-size: 11px; padding: 4px 10px; border: 1px solid var(--hairline-strong); border-radius: 999px; color: var(--fg-1); }
.chip.accent { color: var(--accent); border-color: var(--accent); }

.ledgb-right { padding: clamp(28px, 4vw, 56px); display: flex; flex-direction: column; gap: 24px; }
.ledgb-shot-wrap {
  border: 1px solid var(--hairline);
  border-radius: 8px; overflow: hidden;
  background: oklch(0.135 0.008 60);
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.ledgb-shot-bar { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--hairline); background: oklch(0.165 0.008 60); }
.ledgb-shot-bar .d { width: 10px; height: 10px; border-radius: 50%; background: var(--fg-3); }
.ledgb-shot-bar .d.r { background: oklch(0.65 0.16 25); }
.ledgb-shot-bar .d.y { background: oklch(0.78 0.14 80); }
.ledgb-shot-bar .d.g { background: oklch(0.72 0.16 145); }
.ledgb-shot-bar .t { margin-left: 8px; font-family: var(--mono); font-size: 10.5px; color: var(--fg-3); letter-spacing: 0.08em; }
.ledgb-shot { display: block; width: 100%; height: auto; }
.ledgb-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); }
.ledgb-metric { background: var(--bg); padding: 22px 20px; }
.ledgb-metric .v { font-family: var(--serif); font-size: 48px; line-height: 1; color: var(--accent); margin-bottom: 8px; letter-spacing: -0.02em; }
.ledgb-metric .l { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-2); }

/* terminal mock */
.terminal {
  background: oklch(0.135 0.008 60); border: 1px solid var(--hairline); border-radius: 6px;
  font-family: var(--mono); font-size: 12px; color: var(--fg-1);
  overflow: hidden;
}
.terminal-bar { display: flex; align-items: center; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--hairline); background: oklch(0.165 0.008 60); }
.terminal-bar .d { width: 10px; height: 10px; border-radius: 50%; background: var(--fg-3); }
.terminal-bar .d.r { background: oklch(0.65 0.16 25); }
.terminal-bar .d.y { background: oklch(0.78 0.14 80); }
.terminal-bar .d.g { background: oklch(0.72 0.16 145); }
.terminal-bar .t { margin-left: 8px; font-size: 10.5px; color: var(--fg-3); letter-spacing: 0.08em; }
.terminal-body { padding: 16px; line-height: 1.7; }
.terminal-body .p { color: var(--accent); }
.terminal-body .c { color: var(--fg-3); }
.terminal-body .ok { color: oklch(0.78 0.14 145); }
.terminal-body .fail { color: oklch(0.72 0.16 25); }
.terminal-body .warn { color: oklch(0.82 0.14 80); }
.cursor { display: inline-block; width: 7px; height: 14px; background: var(--accent); margin-left: 4px; vertical-align: -2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

@media (max-width: 900px) {
  .ledgb-grid { grid-template-columns: 1fr; }
  .ledgb-left { border-right: 0; border-bottom: 1px solid var(--hairline); }
}

/* ─────────── Projects ─────────── */
.proj-list { display: flex; flex-direction: column; }
.proj {
  display: grid; grid-template-columns: 96px 1fr 1.4fr 180px;
  gap: 24px; align-items: baseline;
  padding: 28px 0; border-top: 1px solid var(--hairline);
  position: relative; transition: background .2s, padding-left .2s;
  cursor: default;
}
.proj:last-child { border-bottom: 1px solid var(--hairline); }
.proj:hover { background: var(--bg-1); padding-left: 12px; }
.proj .yr { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--fg-3); padding-top: 6px; }
.proj .name { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 34px); line-height: 1.1; color: var(--fg); letter-spacing: -0.015em; }
.proj .name em { color: var(--accent); font-style: italic; }
.proj .role { font-family: var(--mono); font-size: 11px; color: var(--fg-3); margin-top: 4px; letter-spacing: 0.06em; }
.proj .pitch { display: flex; flex-direction: column; gap: 14px; }
.proj .pitch-lede { color: var(--fg-2); font-size: 14.5px; line-height: 1.55; margin: 0; }
.proj-bul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.proj-bul li { position: relative; padding-left: 20px; color: var(--fg-2); font-size: 13px; line-height: 1.5; }
.proj-bul li::before { content: ""; position: absolute; left: 0; top: 8px; width: 6px; height: 6px; border: 1px solid var(--accent); border-radius: 1px; transform: rotate(45deg); }
.proj-metrics { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 4px; }
.proj-metrics .pm { display: flex; flex-direction: column; gap: 1px; }
.proj-metrics .pm-v { font-family: var(--mono); font-size: 19px; line-height: 1; color: var(--accent); letter-spacing: -0.01em; }
.proj-metrics .pm-l { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--fg-3); text-transform: uppercase; }
.proj .right { display: flex; flex-wrap: wrap; gap: 4px; justify-content: flex-end; align-items: flex-start; padding-top: 6px; }
.proj .right .chip { font-size: 10px; padding: 3px 8px; }

@media (max-width: 900px) {
  .proj { grid-template-columns: 80px 1fr; gap: 8px 18px; }
  .proj .pitch, .proj .right { grid-column: 2; }
  .proj .right { justify-content: flex-start; padding-top: 4px; }
}

/* ─────────── Timeline ─────────── */
.timeline { position: relative; padding-left: 0; }
.tl-row {
  display: grid; grid-template-columns: 140px 1fr; gap: 32px;
  padding: 18px 0; border-top: 1px dashed var(--hairline);
  align-items: baseline;
  position: relative;
}
.tl-row:last-child { border-bottom: 1px dashed var(--hairline); }
.tl-row .y { font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: 0.08em; }
.tl-row .body { display: flex; flex-direction: column; gap: 4px; }
.tl-row .t { font-family: var(--serif); font-size: clamp(20px, 1.9vw, 24px); line-height: 1.2; color: var(--fg); letter-spacing: -0.01em; }
.tl-row .d { color: var(--fg-2); font-size: 14px; }
.tl-row.current::before { content: ""; position: absolute; left: -16px; top: 24px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
@media (max-width: 720px) {
  .tl-row { grid-template-columns: 1fr; gap: 4px; }
}

/* ─────────── YouTube / Communication ─────────── */
.comm-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 24px; align-items: start; }

.yt-card {
  border: 1px solid var(--hairline); padding: clamp(24px, 3vw, 36px);
  background: linear-gradient(180deg, oklch(0.19 0.013 30) 0%, oklch(0.165 0.008 60) 100%);
  display: flex; flex-direction: column; gap: 16px;
  position: relative; overflow: hidden;
}
.yt-card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(500px 240px at 100% 0%, oklch(0.55 0.18 25 / 0.18), transparent 60%);
}
.yt-card > * { position: relative; }
.yt-card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.yt-card-head .label { color: oklch(0.72 0.16 25); }
.yt-card-head .yt-stat { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--fg-3); text-transform: uppercase; }
.yt-card h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(28px, 3.4vw, 44px); line-height: 1.05; margin: 4px 0 4px; letter-spacing: -0.02em; }
.yt-card h3 em { font-style: italic; color: oklch(0.72 0.16 25); }
.yt-card p { color: var(--fg-1); margin: 0; max-width: 50ch; font-size: 15px; }
.yt-roadmap { font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; color: var(--fg-3) !important; }
.yt-card .cta {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; color: var(--accent);
  margin-top: 4px; padding: 12px 16px; border: 1px solid var(--accent); border-radius: 999px;
  align-self: flex-start; transition: background .15s, color .15s;
}
.yt-card .cta:hover { background: var(--accent); color: var(--accent-ink); }

.trilha-list {
  list-style: none; margin: 8px 0 4px; padding: 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: var(--hairline); border: 1px solid var(--hairline);
}
.trilha-list li {
  background: oklch(0.16 0.008 60);
  display: flex; align-items: baseline; gap: 10px;
  padding: 11px 14px;
  font-family: var(--mono); font-size: 12px; color: var(--fg-1);
  line-height: 1.35;
}
.trilha-list .ti { color: var(--accent); flex: 0 0 22px; font-size: 10.5px; letter-spacing: 0.06em; }
.trilha-list .tt { color: var(--fg-1); }
@media (max-width: 540px) { .trilha-list { grid-template-columns: 1fr; } }

.comm-side { display: flex; flex-direction: column; gap: 24px; }

.meta-card {
  border: 1px solid var(--hairline); padding: clamp(22px, 2.6vw, 32px);
  background: var(--bg-1);
  display: flex; flex-direction: column; gap: 18px;
}
.meta-lede { font-family: var(--serif); font-size: clamp(20px, 1.9vw, 24px); line-height: 1.3; color: var(--fg); letter-spacing: -0.01em; margin: 0; }
.meta-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 18px; }
.meta-item { display: flex; gap: 8px; align-items: baseline; font-family: var(--mono); font-size: 12px; color: var(--fg-1); line-height: 1.4; }
.meta-tick { color: var(--accent); font-weight: 600; }
.meta-quote {
  font-family: var(--serif); font-style: italic; font-size: 15.5px; line-height: 1.55;
  color: var(--fg-2); padding: 16px 0 0; border-top: 1px solid var(--hairline);
}
.meta-quote em { color: var(--accent); font-style: italic; }
@media (max-width: 480px) { .meta-grid { grid-template-columns: 1fr; } }

.diff-stack { display: flex; flex-direction: column; gap: 12px; }
.diff-item { border: 1px solid var(--hairline); padding: 20px 22px; background: var(--bg); }
.diff-item h4 { font-family: var(--serif); font-size: 20px; margin: 4px 0 6px; letter-spacing: -0.015em; }
.diff-item p { color: var(--fg-2); margin: 0; font-size: 14px; }
.diff-item .n { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.16em; }

@media (max-width: 960px) { .comm-grid { grid-template-columns: 1fr; } }

/* ─────────── Contact ─────────── */
.contact { padding-block: clamp(80px, 12vw, 160px) clamp(40px, 6vw, 80px); }
.contact-h {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(48px, 9vw, 140px); line-height: 0.95;
  letter-spacing: -0.03em; margin: 0 0 clamp(28px, 4vw, 48px);
}
.contact-h em { font-style: italic; color: var(--accent); }
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--hairline); border: 1px solid var(--hairline); margin-bottom: 56px; }
.contact-cell { background: var(--bg); padding: 22px 24px; transition: background .2s; position: relative; overflow: hidden; }
.contact-cell:hover { background: var(--bg-1); }
.contact-cell .l { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 10px; }
.contact-cell .v { font-family: var(--serif); font-size: 20px; color: var(--fg); letter-spacing: -0.01em; display: flex; align-items: center; gap: 8px; }
.contact-cell .v .arr { font-family: var(--mono); font-size: 14px; color: var(--accent); opacity: 0; transform: translateX(-6px); transition: all .2s; }
.contact-cell:hover .v .arr { opacity: 1; transform: translateX(0); }
.contact-cell:hover .v { color: var(--accent); }
@media (max-width: 800px) { .contact-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .contact-grid { grid-template-columns: 1fr; } }

.foot {
  border-top: 1px solid var(--hairline);
  padding: 28px 0; display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--fg-3); text-transform: uppercase;
  flex-wrap: wrap; gap: 16px;
}
.foot .heart { color: var(--accent); }

/* ─────────── Command Palette ─────────── */
.cmdk-back {
  position: fixed; inset: 0; z-index: 9000;
  background: oklch(0.10 0.008 60 / 0.65);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 14vh;
  animation: fadeIn .12s ease-out;
}
@keyframes fadeIn { from { opacity: 0; } }
.cmdk {
  width: min(640px, 92vw); background: var(--bg-1);
  border: 1px solid var(--hairline-strong); border-radius: 12px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
  overflow: hidden;
  animation: slideUp .18s ease-out;
}
@keyframes slideUp { from { transform: translateY(8px); opacity: 0; } }
.cmdk-input { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--hairline); }
.cmdk-input input {
  flex: 1; background: transparent; border: 0; outline: 0;
  font-family: var(--sans); font-size: 16px; color: var(--fg);
  padding: 4px 0;
}
.cmdk-input input::placeholder { color: var(--fg-3); }
.cmdk-input .ic { color: var(--fg-3); font-family: var(--mono); font-size: 14px; }
.cmdk-input .esc { font-family: var(--mono); font-size: 10px; padding: 3px 8px; border: 1px solid var(--hairline); border-radius: 4px; color: var(--fg-2); letter-spacing: 0.1em; }
.cmdk-list { max-height: 52vh; overflow-y: auto; padding: 6px; }
.cmdk-list::-webkit-scrollbar { width: 8px; }
.cmdk-list::-webkit-scrollbar-thumb { background: var(--hairline); border-radius: 4px; }
.cmdk-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 8px; cursor: default;
  font-family: var(--sans); font-size: 14px; color: var(--fg-1);
}
.cmdk-row .s { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em; color: var(--fg-3); text-transform: uppercase; }
.cmdk-row.active { background: var(--accent); color: var(--accent-ink); }
.cmdk-row.active .s { color: var(--accent-ink); opacity: 0.7; }
.cmdk-empty { padding: 32px; text-align: center; color: var(--fg-3); font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; }

/* ─────────── Scroll reveal ─────────── */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: .05s; }
.reveal.d2 { transition-delay: .12s; }
.reveal.d3 { transition-delay: .2s; }

/* ─────────── Toast ─────────── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--accent); color: var(--accent-ink);
  font-family: var(--mono); font-size: 12px; padding: 10px 18px; border-radius: 999px;
  letter-spacing: 0.08em; z-index: 10000;
  box-shadow: 0 8px 32px oklch(0.55 0.16 60 / 0.4);
  animation: toastIn .25s ease-out;
}
@keyframes toastIn { from { transform: translate(-50%, 12px); opacity: 0; } }

/* ════════════════════════════════════════════════════════════════════════════
   RESPONSIVE  explicit breakpoints (tablet 1024 · phablet 720 · phone 480)
   ════════════════════════════════════════════════════════════════════════════ */

/* Tablet & small laptop (≤1024) ─────────────────────────────── */
@media (max-width: 1024px) {
  :root { --pad: clamp(20px, 5vw, 48px); }

  .hero h1 { font-size: clamp(54px, 11vw, 120px); }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 22px; }

  .stack-grid { grid-template-columns: repeat(2, 1fr); }

  .ledgb-grid { grid-template-columns: 1fr 1fr; }
  .ledgb h3 { font-size: clamp(30px, 4.4vw, 48px); }

  .proj { grid-template-columns: 80px 1.2fr 1.6fr; gap: 16px; }
  .proj .right { grid-column: 1 / -1; justify-content: flex-start; padding-top: 6px; }

  .comm-grid { grid-template-columns: 1fr; gap: 20px; }
  .trilha-list { grid-template-columns: 1fr 1fr; }
}

/* Phablet / large phone (≤720) ───────────────────────────────── */
@media (max-width: 720px) {
  :root { --pad: 24px; --maxw: 100%; }

  body { font-size: 15px; }

  /* TopBar  collapse navlinks, keep brand + Cmd-K */
  .topbar-inner { padding: 10px 16px; gap: 12px; }
  .brand { font-size: 10.5px; letter-spacing: 0.06em; }
  .brand b { font-size: 11px; }
  .nav { gap: 10px; }
  .nav .navlink:not(.lang) { display: none; }
  /* alvo de toque WCAG 2.5.5 (>=44px) no botao Cmd-K */
  .kbd { padding: 8px 12px; font-size: 11px; min-height: 44px; }

  /* Hero */
  .hero { padding-block: 48px 36px; }
  .hero-meta {
    flex-direction: column; align-items: flex-start; gap: 8px;
    padding-bottom: 20px; margin-bottom: 28px;
    font-size: 10.5px;
  }
  .hero h1 {
    font-size: clamp(44px, 14vw, 72px);
    line-height: 0.94; letter-spacing: -0.03em;
    margin-bottom: 20px;
  }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; margin-top: 28px; }
  .hero-tagline { font-size: 20px; max-width: none; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 16px; }
  .hero-stats .val { font-size: 18px; }
  .hero-stats .lbl { font-size: 10px; }
  .scroll-cue { margin-top: 36px; font-size: 10px; gap: 10px; }
  .scroll-cue .line { flex-basis: 40px; }

  /* Section heads */
  section.sect { padding-block: 48px; }
  .sect-head { grid-template-columns: 1fr; gap: 12px; margin-bottom: 24px; }
  .sect-head .num { padding-top: 0; font-size: 11px; }
  .sect-head h2 { font-size: clamp(32px, 9vw, 44px); line-height: 1.05; }
  .sect-head .sub { grid-column: 1; margin-top: 4px; font-size: 14px; }

  /* Manifesto principles → stack */
  .principles { grid-template-columns: 1fr; }
  .principle { min-height: 0; padding: 22px; gap: 10px; }
  .principle .t { font-size: 20px; }
  .principle .d { font-size: 13.5px; }

  /* Stack grid */
  .stack-grid { grid-template-columns: 1fr; }
  .stack-cell { padding: 20px 22px; }
  .rules-banner { grid-template-columns: 1fr; gap: 8px; padding: 16px 20px; }
  .rules-banner .row { flex-wrap: wrap; }

  /* LEDGB feature */
  .ledgb-grid { grid-template-columns: 1fr; }
  .ledgb-left { border-right: 0; border-bottom: 1px solid var(--hairline); padding: 24px 22px; }
  .ledgb-right { padding: 24px 22px; gap: 20px; }
  .ledgb-brand { gap: 14px; margin-bottom: 16px; }
  .ledgb-logo { width: 48px; height: 48px; border-radius: 10px; padding: 4px; }
  .ledgb h3 { font-size: clamp(28px, 8vw, 38px); }
  .ledgb-sub { font-size: 10px; }
  .ledgb .pitch { font-size: 14.5px; margin-bottom: 20px; }
  .ledgb-bullets li { font-size: 12px; }
  .ledgb-metric .v { font-size: 36px; }
  .ledgb-metric .l { font-size: 10px; }
  .ledgb-metric { padding: 18px 16px; }
  .terminal-body { padding: 14px; font-size: 11px; }

  /* Projects */
  .proj {
    grid-template-columns: 1fr; gap: 16px;
    padding: 24px 0;
  }
  .proj:hover { padding-left: 0; background: transparent; }
  .proj .yr { padding-top: 0; }
  .proj .name { font-size: 22px; }
  .proj .pitch { gap: 12px; }
  .proj .pitch-lede { font-size: 14px; }
  .proj-bul li { font-size: 13px; }
  /* reset placement herdada do @media 900 (grid-column:2 vira coluna implicita
     de largura 0 quando .proj passa a 1 coluna) -> chips empilhavam vertical */
  .proj .pitch, .proj .right { grid-column: 1; }
  .proj .right {
    width: 100%; padding-top: 8px; gap: 6px;
    flex-flow: row wrap; justify-content: flex-start; align-items: center;
  }
  .proj .right .chip { flex: 0 0 auto; }

  /* Timeline */
  .tl-row { grid-template-columns: 1fr; gap: 4px; padding: 14px 0; }
  .tl-row.current::before { display: none; }
  .tl-row .t { font-size: 18px; }
  .tl-row .d { font-size: 13px; }

  /* Communication section */
  .yt-card { padding: 22px; gap: 14px; }
  .yt-card-head { gap: 8px; }
  .yt-card h3 { font-size: 26px; }
  .yt-card p { font-size: 14px; }
  .trilha-list { grid-template-columns: 1fr; }
  .trilha-list li { padding: 10px 14px; font-size: 12px; }
  .meta-card { padding: 22px; gap: 16px; }
  .meta-lede { font-size: 18px; }
  .meta-grid { grid-template-columns: 1fr; gap: 8px; }
  .meta-quote { font-size: 14px; }
  .diff-item { padding: 18px 20px; }
  .diff-item h4 { font-size: 18px; }
  .yt-card .cta { padding: 10px 14px; font-size: 11px; align-self: stretch; justify-content: center; }

  /* Contact */
  .contact { padding-block: 56px 32px; }
  .contact-h { font-size: clamp(40px, 13vw, 64px); margin-bottom: 28px; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .contact-cell { padding: 18px 20px; }
  .contact-cell .v { font-size: 16px; }
  .contact-cell .v .arr { opacity: 1; transform: translateX(0); }
  .foot {
    flex-direction: column; align-items: flex-start; gap: 8px;
    padding: 20px 0; font-size: 10px;
  }

  /* Command palette */
  .cmdk-back { padding-top: 8vh; padding-left: 16px; padding-right: 16px; }
  .cmdk { width: 100%; }
  .cmdk-input { padding: 12px 14px; }
  .cmdk-input input { font-size: 15px; }
  .cmdk-row { padding: 12px; font-size: 13.5px; }
  .cmdk-row .s { font-size: 9.5px; }
}

/* Phone (≤480) ───────────────────────────────────────────────── */
@media (max-width: 480px) {
  /* respiro lateral generoso: 28px da borda (Rafael: conteudo encostava nas laterais
     no mobile mesmo com 20px). Serif grande + cards densos pedem mais gutter. */
  :root { --pad: 28px; }

  /* cards densos da secao Comunicacao: conteudo interno nao cola na borda do card */
  .yt-card { padding: 22px 20px; }
  .trilha-list li { padding: 11px 12px; }
  .meta-card { padding: 22px 20px; }
  .diff-item { padding: 18px 18px; }
  .contact-cell { padding: 18px 22px; }

  .topbar-inner { padding: 10px 16px; }
  .brand { gap: 8px; }

  /* mais ar no topo do hero e ritmo vertical das stats */
  .hero { padding-block: 48px 40px; }
  .hero h1 { font-size: clamp(36px, 14vw, 56px); margin-bottom: 24px; }
  .hero-meta { margin-bottom: 30px; }
  .hero-grid { gap: 26px; margin-top: 30px; }
  .hero-stats { grid-template-columns: 1fr; gap: 18px; }

  /* secoes com mais espaco vertical e cabecalho mais solto */
  section.sect { padding-block: 48px; }
  .sect-head { margin-bottom: 28px; }
  .sect-head h2 { font-size: clamp(28px, 8vw, 36px); }

  .contact { padding-block: 56px 36px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-h { font-size: clamp(36px, 14vw, 52px); }

  .ledgb-shot-bar .t { display: none; }
}

/* Touch device fine-tuning */
@media (hover: none) {
  .proj:hover { background: transparent; padding-left: 0; }
  .principle:hover { background: var(--bg); }
  .contact-cell:hover { background: var(--bg); }
  .contact-cell .v .arr { opacity: 1; transform: translateX(0); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .cursor { animation: none; }
  .hero-meta .live::before { animation: none; }
}

/* ─────────── Identidade Visual · logo RM + disciplinas ─────────── */
/* lettermark RM (R periwinkle, M ambar)  cor fixa da marca, independe do accent */
.rm-mark { display: block; width: auto; height: 24px; flex: 0 0 auto; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand .rm-mark { height: 20px; }

/* faixa DEV · DESIGN · INFRA abaixo da tagline do hero */
.hero-tagline-col { display: flex; flex-direction: column; gap: 18px; }
.hero-disc {
  display: flex; align-items: center; flex-wrap: wrap;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--fg-3);
}
.hero-disc span:not(:first-child)::before {
  content: "·"; color: var(--accent); padding: 0 11px; letter-spacing: 0;
}

/* lockup de marca no rodape (acima do .foot) */
.brand-lockup {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 30px 0; border-top: 1px solid var(--hairline);
}
.brand-lockup .rm-mark { height: 32px; }
.brand-lockup .bl-txt { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.brand-lockup .bl-name { font-family: var(--mono); font-size: 13px; letter-spacing: 0.2em; color: var(--fg); }
.brand-lockup .bl-disc { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.22em; color: var(--fg-3); }
.brand-lockup .bl-disc b { color: var(--accent); font-weight: 400; }
.brand-lockup .bl-site {
  margin-left: auto; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.14em; color: var(--fg-2); text-transform: uppercase;
}

/* ─────────── Celular · seguranca de espacamento / overflow ─────────── */
/* strings longas (email, urls, mono) nao estouram a viewport no celular */
.contact-cell .v, .hero-stats .val, .proj .pitch { overflow-wrap: anywhere; }
/* min-width:0 evita que filhos de grid/flex furem o container (causa #1 de scroll lateral) */
.hero-stats > div, .contact-cell, .proj > * { min-width: 0; }

@media (max-width: 540px) {
  .brand-lockup { gap: 13px; padding: 24px 0; }
  .brand-lockup .rm-mark { height: 28px; }
  .brand-lockup .bl-site { margin-left: 0; width: 100%; }
  .hero-disc { font-size: 10px; letter-spacing: 0.2em; }
  .hero-disc span:not(:first-child)::before { padding: 0 9px; }
}
