/* ============================================================
   Lucas Maciel — Portfolio v2 · "Dossiê de Produto"
   Tokens
   ============================================================ */
:root {
  color-scheme: light;
  --paper: #F4F1EA;
  --paper-2: #EAE6DB;
  --ink: #1B1B16;
  --muted: #6E6A5E;
  --line: #DCD8CC;
  --line-strong: #1B1B16;
  --accent: #1C7A54;
  --green-900: #0E3B2A;
  --green-100: #E3F0E8;
  --amber: #B45309;
  --amber-100: #F6E8D3;
  --coral: #C75C41;
  --coral-ink: #A94F38;
  --grad-evolucao: linear-gradient(90deg, var(--accent), var(--coral));
  --radius: 2px;
  --pad: clamp(20px, 5vw, 72px);
  --maxw: 1360px;
  --display: "Archivo", sans-serif;
  --mono: "IBM Plex Mono", monospace;
  --dur-fast: .2s;
  --dur-base: .45s;
  --dur-slow: .8s;
  --ease-out: cubic-bezier(.2, .8, .2, 1);
}
[data-theme="dark"] {
  color-scheme: dark;
  --paper: #141511;
  --paper-2: #1B1D17;
  --ink: #E8E6DC;
  --muted: #97948A;
  --line: #2C2E26;
  --line-strong: #E8E6DC;
  --accent: #43BD86;
  --green-900: #0E3B2A;
  --green-100: rgba(67, 189, 134, .13);
  --amber: #D98A3D;
  --amber-100: rgba(217, 138, 61, .14);
  --coral: #DD7457;
  --coral-ink: #DD7457;
}

/* ============================================================
   Base
   ============================================================ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@view-transition { navigation: auto; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--display);
  font-size: 16.5px;
  line-height: 1.55;
  transition: background-color .3s ease, color .3s ease;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
::selection { background: var(--accent); color: var(--paper); }
h1, h2, h3 { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.mono, .stamp, .status-badge, .section-index, .section-note, .registro-meta,
.registro-num, .tagline, .preview-label, .anexo figcaption, .scroll-cue,
.topnav, .brand, .hero-kicker, .ledger-foot, .stack-line, .processo-grid li > span,
.copy-email, .btn-big, .preview-cta {
  font-family: var(--mono);
}

/* ============================================================
   Topbar
   ============================================================ */
.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 var(--pad);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.topnav {
  display: flex;
  gap: 22px;
  margin-left: auto;
}
.topnav a {
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--dur-fast);
}
.topnav a:hover { color: var(--ink); }
.theme-toggle {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color var(--dur-fast), background var(--dur-fast);
}
.theme-toggle:hover { border-color: var(--ink); }
.theme-toggle svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.6; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ============================================================
   Hero — §01
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 96px var(--pad) 40px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.hero-kicker {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
}
.hero-kicker::before {
  content: "§01 — ";
  color: var(--accent);
}
.hero-title {
  font-weight: 700;
  font-stretch: 118%;
  font-size: clamp(40px, 6.8vw, 98px);
  line-height: .98;
  letter-spacing: -.035em;
  text-transform: none;
}
.hero-line { display: block; white-space: nowrap; }
.hero-line:nth-child(2) { margin-left: .5em; }
.hero-line:nth-child(3) { margin-left: 1em; }
.hero-line:nth-child(4) { margin-left: 1.5em; }
.hero-line em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
}
.hero-line .accent { color: var(--accent); }
.hero-line-small {
  font-size: .38em;
  font-weight: 500;
  font-stretch: 100%;
  letter-spacing: -.01em;
  color: var(--muted);
  margin: .9em 0 0 4.4em;
}
.hero-title .w {
  display: inline-block;
  opacity: 0;
  transform: translateY(.55em);
  transition: opacity var(--dur-slow) ease, transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--wd, 0s);
}
.hero-title.is-in .w { opacity: 1; transform: none; }

.status-badge {
  position: absolute;
  top: 96px;
  right: var(--pad);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--ink);
  background: transparent;
}
.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  50% { opacity: .35; }
}
.copy-email:hover { border-color: var(--accent); color: var(--accent); }
.copy-email.copied { border-color: var(--accent); background: var(--accent); color: var(--paper); }

.scroll-cue {
  position: absolute;
  bottom: 28px;
  right: var(--pad);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  gap: 10px;
  align-items: center;
}
.scroll-cue span { animation: bounce 1.8s infinite; }
@keyframes bounce {
  50% { transform: translateY(6px); }
}

/* ============================================================
   Sections — ledger heads
   ============================================================ */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(70px, 10vh, 130px) var(--pad) 0;
}
.section-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 14px;
}
.section-index {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .08em;
}
.section-head h2 {
  font-weight: 700;
  font-stretch: 118%;
  font-size: clamp(30px, 3.6vw, 52px);
  letter-spacing: -.03em;
  line-height: 1;
}
.section-head .h-small { font-size: clamp(22px, 2.4vw, 32px); }
.section-note {
  margin: 0 0 2px auto;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.section-lead {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

/* ============================================================
   Registros — §02
   ============================================================ */
.registro-list { margin-top: 34px; }
.registro { border-bottom: 1px solid var(--line); }
.registro-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) 40px;
  align-items: center;
  gap: 22px;
  padding: 30px 0;
  transition: padding var(--dur-base) var(--ease-out);
}
.registro-num {
  font-size: clamp(34px, 4.6vw, 64px);
  font-weight: 400;
  color: var(--muted);
  line-height: 1;
  transition: color var(--dur-fast);
}
.registro-meta {
  display: block;
  font-size: 10.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.registro-info h3 {
  font-weight: 700;
  font-stretch: 118%;
  font-size: clamp(26px, 3.4vw, 46px);
  letter-spacing: -.03em;
  line-height: 1;
  transition: color var(--dur-fast);
}
.registro-decision {
  display: block;
  margin-top: 10px;
  max-width: 560px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.55;
}
.stamp {
  align-self: start;
  margin-top: 6px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid currentColor;
  border-radius: var(--radius);
  padding: 6px 9px;
  white-space: nowrap;
  background: var(--green-100);
}
.stamp-amber { color: var(--amber); background: var(--amber-100); }
.registro-arrow {
  font-size: 22px;
  color: var(--muted);
  transition: transform var(--dur-fast), color var(--dur-fast);
}
.registro:hover .registro-arrow, .registro:focus-within .registro-arrow {
  transform: translateX(6px);
  color: var(--accent);
}
.registro:hover .registro-num, .registro:focus-within .registro-num { color: var(--accent); }

.registro-preview {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .55s var(--ease-out);
}
.registro:hover .registro-preview,
.registro:focus-within .registro-preview {
  grid-template-rows: 1fr;
}
.preview-inner {
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, .85fr);
  gap: 34px;
  align-items: start;
}
.registro:hover .preview-inner, .registro:focus-within .preview-inner { padding-bottom: 34px; }
.anexo {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.anexo figcaption {
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--paper-2);
}
.preview-label {
  margin: 4px 0 10px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}
.preview-copy > p:not(.preview-label) {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
}
.tagline {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}
.tagline li {
  font-size: 10px;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 5px 8px;
}
.preview-cta {
  display: inline-block;
  margin-top: 18px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ============================================================
   Processo — §03
   ============================================================ */
.processo-grid {
  list-style: none;
  padding: 0;
  margin: 34px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px 32px;
  counter-reset: none;
}
.processo-grid li {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.processo-grid li > span {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
}
.processo-grid h3 {
  font-weight: 700;
  font-stretch: 112%;
  font-size: 19px;
  letter-spacing: -.015em;
  margin: 10px 0 8px;
}
.processo-grid p {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.6;
}
.processo-more { margin: 40px 0 0; }
.processo-more a {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.processo-more a:hover { color: var(--accent); border-color: var(--accent); }

/* ============================================================
   Stack — §04
   ============================================================ */
.stack-grid {
  list-style: none;
  padding: 0;
  margin: 34px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.stack-grid li {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 26px 24px;
  background: var(--paper);
  transition: background var(--dur-fast);
}
.stack-grid li:hover {
  background: color-mix(in srgb, var(--brand) 8%, var(--paper));
  box-shadow: inset 3px 0 0 var(--brand);
}
.tool-icons {
  position: relative;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  filter: drop-shadow(0 3px 6px rgba(27, 27, 22, .14));
}
[data-theme="dark"] .tool-icons { filter: drop-shadow(0 3px 7px rgba(0, 0, 0, .4)); }
.tool-icons img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transition: opacity var(--dur-fast) ease, transform var(--dur-base) var(--ease-out);
}
.ico-default { opacity: 1; }
[data-theme="dark"] .ico-default { filter: invert(1) hue-rotate(180deg); opacity: .82; }
.ico-color { opacity: 0; transform: scale(.9); }
.stack-grid li:hover .ico-default { opacity: 0; }
.stack-grid li:hover .ico-color { opacity: 1; transform: none; }
.stack-grid li:hover h3 { color: var(--brand-ink, var(--ink)); }
.tool-figma   { --brand: #F24E1E; --brand-ink: #F24E1E; }
.tool-notion  { --brand: #8A8A8A; --brand-ink: var(--ink); }
.tool-azure   { --brand: #0078D4; --brand-ink: #0078D4; }
.tool-chatgpt { --brand: #10A37F; --brand-ink: #10A37F; }
.tool-claude  { --brand: #D97757; --brand-ink: #D97757; }
.tool-obsidian{ --brand: #7C3AED; --brand-ink: #7C3AED; }
[data-theme="dark"] .tool-notion { --brand: #C9C9C9; }
[data-theme="dark"] .stack-grid li:hover h3 { color: #fff; }
.stack-grid h3 {
  font-weight: 700;
  font-stretch: 112%;
  font-size: 20px;
  letter-spacing: -.02em;
  margin: 0 0 4px;
}
.stack-grid p {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--muted);
  line-height: 1.4;
}

/* ============================================================
   Contato — §05
   ============================================================ */
.section-contato { padding-bottom: clamp(70px, 10vh, 120px); }
.contato-cta {
  font-weight: 700;
  font-stretch: 118%;
  font-size: clamp(38px, 6.4vw, 92px);
  letter-spacing: -.035em;
  line-height: 1.02;
  margin: 34px 0 0;
  max-width: 14ch;
}
.contato-cta em {
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
}
.contato-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}
.btn-big {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 16px 26px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper);
  transition: background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.btn-big:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-big.copied { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-ghost { background: none; color: var(--ink); }
.btn-ghost:hover { background: none; color: var(--accent); border-color: var(--accent); }

/* ============================================================
   Footer
   ============================================================ */
.ledger-foot {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px var(--pad) 26px;
  border-top: 1px solid var(--line-strong);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ============================================================
   Progresso de leitura — a linha de evolução verde→coral
   ============================================================ */
.progresso {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  height: 2px;
  background: var(--grad-evolucao);
  transform: scaleX(0);
  transform-origin: left center;
  pointer-events: none;
  will-change: transform;
}

/* ============================================================
   Reveals & motion
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-slow) ease, transform var(--dur-slow) var(--ease-out);
}
[data-reveal].visible { opacity: 1; transform: none; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .hero { justify-content: center; }
  .registro-row { grid-template-columns: 70px minmax(0, 1fr); }
  .registro-arrow { display: none; }
  .preview-inner { grid-template-columns: 1fr; gap: 22px; }
  .processo-grid { grid-template-columns: repeat(2, 1fr); }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
  body { font-size: 16px; }
  .topnav { gap: 14px; }
  .topnav a.nav-optional { display: none; }
  .hero { padding-top: 84px; }
  .hero-title { font-size: clamp(36px, 10.2vw, 60px); }
  .hero-line { white-space: normal; }
  .hero-line:nth-child(2) { margin-left: .3em; }
  .hero-line:nth-child(3) { margin-left: .6em; }
  .hero-line:nth-child(4) { margin-left: .9em; }
  .hero-line-small { margin-left: 1.4em; }
  .scroll-cue { position: static; margin-top: 40px; }
  .section-head { flex-wrap: wrap; gap: 10px 14px; }
  .section-note { margin-left: 0; width: 100%; order: 3; }
  .registro-row { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 24px 0; }
  .registro-num { font-size: 15px; font-weight: 600; }
  .registro-num::before { content: "Nº "; }
  .registro-preview, .registro:hover .registro-preview { grid-template-rows: 1fr; }
  .preview-inner { padding-bottom: 24px; }
  .processo-grid { grid-template-columns: 1fr; gap: 26px; }
  .stack-grid { grid-template-columns: 1fr; }
  .stack-grid li { padding: 20px; }
  .ledger-foot { flex-direction: column; gap: 6px; }
}

@media (hover: none) {
  .registro-preview { grid-template-rows: 1fr; }
  .preview-inner { padding-bottom: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .hero-title .w { opacity: 1; transform: none; }
  .registro-preview { grid-template-rows: 1fr; }
  .progresso { display: none; }
}