/* gustavocancado.com.br — folha única
   Paleta: névoa fria + tinta grafite + um acento pinho. */

:root {
  --paper: #eef0ed;
  --paper-2: #e3e7e3;
  --ink: #17202a;
  --ink-2: #3c4752;
  --mute: #66717c;
  --rule: #c3cac8;
  --pine: #2c5a4b;
  --pine-deep: #1e4337;
  --on-pine: #f1f4f1;

  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Instrument Sans", "Segoe UI", system-ui, -apple-system, sans-serif;

  --measure: 36rem;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --space-section: clamp(5rem, 11vw, 9.5rem);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #12181d;
    --paper-2: #182027;
    --ink: #e4e9e5;
    --ink-2: #b7c0bd;
    --mute: #8a9591;
    --rule: #2f3a40;
    --pine: #86b8a5;
    --pine-deep: #a6cfbf;
    --on-pine: #0f1a16;
    color-scheme: dark;
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--pine); }

:focus-visible { outline: 2px solid var(--pine); outline-offset: 3px; border-radius: 2px; }

.skip {
  position: absolute; left: -999px; top: 0;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; z-index: 10;
}
.skip:focus { left: var(--gutter); top: .75rem; }

.wrap { max-width: 74rem; margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Tipografia ---------- */

h1, h2, h3, .display {
  font-family: var(--serif);
  font-weight: 400;
  font-optical-sizing: auto;
  color: var(--ink);
  margin: 0;
}
h1 { font-size: clamp(2.6rem, 6.2vw, 5.4rem); line-height: 1.02; letter-spacing: -0.022em; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.85rem); line-height: 1.1; letter-spacing: -0.015em; }
h3 { font-size: 1.4rem; line-height: 1.25; letter-spacing: -0.005em; }

p { margin: 0 0 1em; max-width: var(--measure); }
.lede { font-size: clamp(1.15rem, 1.6vw, 1.3rem); line-height: 1.55; color: var(--ink-2); }
.muted { color: var(--mute); }
.small { font-size: .9375rem; }

/* ---------- Cabeçalho ---------- */

.site-header { padding-block: 1.5rem; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }

.brand { font-family: var(--serif); font-size: 1.35rem; text-decoration: none; letter-spacing: -0.01em; line-height: 1.1; }
.brand span { display: block; font-family: var(--sans); font-size: .8125rem; color: var(--mute); letter-spacing: 0; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2rem); }
.nav a { text-decoration: none; font-size: .9688rem; color: var(--ink-2); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; }
.nav .btn { color: var(--on-pine); }
.nav .btn:hover { color: var(--on-pine); text-decoration: none; }

.nav-toggle { display: none; }

@media (max-width: 48rem) {
  .nav-toggle {
    display: inline-flex; align-items: center; gap: .5rem;
    background: none; border: 1px solid var(--rule); color: var(--ink);
    font: inherit; font-size: .9375rem; padding: .45rem .8rem; border-radius: 999px; cursor: pointer;
  }
  .nav {
    position: absolute; inset: 4.9rem 0 auto 0; z-index: 5;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--rule);
    padding: .5rem var(--gutter) 1.5rem;
  }
  .nav[hidden] { display: none; }
  .nav a { font-size: 1.125rem; padding-block: .7rem; width: 100%; border-bottom: 1px solid var(--rule); }
  .nav .btn { margin-top: 1rem; width: auto; border-bottom: 0; }
  .site-header { position: relative; }
}
@media (min-width: 48.01rem) { .nav[hidden] { display: flex !important; } }

/* ---------- Botões ---------- */

.btn {
  display: inline-block; text-decoration: none; cursor: pointer;
  font: 500 1rem/1 var(--sans);
  padding: .95rem 1.4rem; border-radius: 999px;
  background: var(--pine); color: var(--on-pine); border: 1px solid var(--pine);
  transition: background-color .15s ease;
}
.btn:hover { background: var(--pine-deep); border-color: var(--pine-deep); color: var(--on-pine); }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-quiet:hover { background: var(--paper-2); color: var(--ink); border-color: var(--ink-2); }
.nav .btn { padding: .65rem 1.05rem; font-size: .9375rem; }

.actions { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: center; margin-top: 2.25rem; }

/* ---------- Hero ---------- */

.hero { padding-block: clamp(3rem, 8vw, 6.5rem) clamp(3rem, 6vw, 5rem); }
.hero h1 { max-width: 18ch; }
.hero .hero-grid { margin-top: clamp(2rem, 4vw, 3.5rem); }
.hero .lede { max-width: 34rem; }
@media (min-width: 64rem) {
  .hero .hero-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
  .hero .map { margin-top: .5rem; }
}
.signature { margin-top: 2rem; font-size: .9375rem; color: var(--mute); line-height: 1.4; }
.signature strong { display: block; color: var(--ink); font-weight: 500; font-size: 1rem; }

.hero-grid { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 64rem) {
  .hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: end; }
}

/* Mapa: áreas da empresa cruzadas por um problema */
.map { color: var(--ink); }
.map svg { width: 100%; height: auto; overflow: visible; }
.map .col { stroke: var(--rule); stroke-width: 1; }
.map .area { font: 400 15px var(--sans); fill: var(--mute); }
.map .trace { fill: none; stroke: var(--pine); stroke-width: 2; stroke-linecap: round; }
.map .node { fill: var(--paper); stroke: var(--pine); stroke-width: 2; }
.map figcaption { font-size: .875rem; color: var(--mute); margin-top: .75rem; max-width: 30rem; }
.map .v { display: none; }
@media (max-width: 40rem) { .map .h { display: none; } .map .v { display: block; } .map .area { font-size: 14px; } }

.map.drawn .trace { animation: trace 2.2s cubic-bezier(.45,.05,.25,1) .3s both; }
.map.drawn .node { animation: node .4s ease both; }
@keyframes trace { from { stroke-dashoffset: var(--len); } to { stroke-dashoffset: 0; } }
@keyframes node { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .map.drawn .trace, .map.drawn .node { animation: none; }
}

/* ---------- Seções ---------- */

.section { padding-block: var(--space-section); border-top: 1px solid var(--rule); }
.section.tint { background: var(--paper-2); border-top-color: transparent; }

.split { display: grid; gap: 2rem 4rem; }
@media (min-width: 60rem) {
  .split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
  .split > .head { position: sticky; top: 2rem; align-self: start; }
}
.head p { margin-top: 1.25rem; color: var(--ink-2); }

.prose p { font-size: 1.125rem; }
.prose p + p { margin-top: 0; }

/* Tese: um problema, várias leituras */
.readings { list-style: none; padding: 0; margin: 2.5rem 0 0; }
.readings li {
  display: grid; grid-template-columns: minmax(0, 1fr); gap: .15rem;
  padding-block: 1.1rem; border-top: 1px solid var(--rule);
  font-size: 1.0625rem; color: var(--ink-2);
}
.readings li:last-child { border-bottom: 1px solid var(--rule); }
.readings b { font-family: var(--serif); font-weight: 400; font-size: 1.3rem; color: var(--ink); }
@media (min-width: 40rem) {
  .readings li { grid-template-columns: 15rem minmax(0, 1fr); gap: 2rem; align-items: baseline; }
}

/* Situações */
.situations { display: grid; gap: 2.75rem 3rem; margin-top: 3.5rem; }
@media (min-width: 44rem) { .situations { grid-template-columns: 1fr 1fr; } }
.situations h3 { margin-bottom: .6rem; max-width: 22ch; }
.situations p { color: var(--ink-2); margin: 0; }

/* Processo em ciclo */
.cycle-grid { display: grid; gap: 3rem 4rem; margin-top: 3.5rem; align-items: center; }
@media (min-width: 60rem) { .cycle-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } }
.cycle svg { width: 100%; max-width: 26rem; height: auto; margin-inline: auto; display: block; }
.cycle .ring { fill: none; stroke: var(--rule); stroke-width: 1.2; }
.cycle .arc { fill: none; stroke: var(--pine); stroke-width: 1.6; }
.cycle .dot { fill: var(--paper); stroke: var(--pine); stroke-width: 1.6; }
.section.tint .cycle .dot { fill: var(--paper-2); }
.cycle .num { font: 500 13px var(--sans); fill: var(--pine); text-anchor: middle; dominant-baseline: central; }
.cycle .lbl { font: 400 19px var(--serif); fill: var(--ink); }
.cycle .center { font: 400 15px var(--sans); fill: var(--mute); text-anchor: middle; }

.steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 2.25rem minmax(0, 1fr); gap: 0 .75rem; padding-block: 1.1rem; border-top: 1px solid var(--rule); }
.steps li:last-child { border-bottom: 1px solid var(--rule); }
.steps li::before { content: counter(step); font: 500 .9375rem/2 var(--sans); color: var(--pine); }
.steps h3 { font-size: 1.3rem; }
.steps p { grid-column: 2; margin: .25rem 0 0; color: var(--ink-2); }
.steps-note { margin-top: 1.5rem; color: var(--mute); font-size: .9375rem; }

/* Formas de atuação */
.formats { display: grid; gap: 3rem; margin-top: 3.5rem; }
@media (min-width: 56rem) { .formats { grid-template-columns: repeat(3, 1fr); gap: 3rem; } }
.format { border-top: 2px solid var(--ink); padding-top: 1.5rem; }
.format h3 { font-size: 1.6rem; margin-bottom: .35rem; }
.format .for { font-size: .9375rem; color: var(--pine); margin-bottom: 1rem; }
.format p { color: var(--ink-2); }

/* Experiência */
.facts { display: grid; gap: 1.5rem 2.5rem; margin: 3rem 0 0; padding: 0; }
@media (min-width: 40rem) { .facts { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.facts div { border-top: 1px solid var(--rule); padding-top: 1rem; }
.facts dt { font-family: var(--serif); font-size: 1.55rem; line-height: 1.15; color: var(--ink); }
.facts dd { margin: .35rem 0 0; font-size: .9375rem; color: var(--mute); }

.pending {
  border: 1px dashed var(--rule); border-radius: 6px; padding: 1.25rem 1.5rem;
  color: var(--mute); font-size: .9375rem; margin-top: 2.5rem; max-width: 44rem;
}
.pending strong { color: var(--ink-2); font-weight: 500; }

/* Princípios */
.principles { list-style: none; padding: 0; margin: 3rem 0 0; }
.principles li {
  font-family: var(--serif); font-size: clamp(1.55rem, 3vw, 2.35rem); line-height: 1.2;
  letter-spacing: -0.012em; padding-block: 1.15rem; border-top: 1px solid var(--rule); max-width: 30ch;
}
.principles li:last-child { border-bottom: 1px solid var(--rule); }

/* Rede */
.network { max-width: 44rem; }
.network .beats { font-family: var(--serif); font-size: clamp(1.35rem, 2.4vw, 1.75rem); line-height: 1.35; color: var(--ink); margin: 2rem 0; }
.network .beats span { display: block; }

/* Caderno */
.notes { list-style: none; padding: 0; margin: 3rem 0 0; }
.notes li { border-top: 1px solid var(--rule); }
.notes li:last-child { border-bottom: 1px solid var(--rule); }
.notes a { display: grid; gap: .35rem; padding-block: 1.5rem; text-decoration: none; }
@media (min-width: 48rem) { .notes a { grid-template-columns: minmax(0, 1fr) 10rem; gap: 2rem; align-items: baseline; } }
.notes .t { font-family: var(--serif); font-size: 1.55rem; line-height: 1.2; }
.notes .d { color: var(--ink-2); font-size: 1rem; margin-top: .35rem; display: block; max-width: 40rem; }
.notes .m { font-size: .875rem; color: var(--mute); }
.notes a:hover .t { text-decoration: underline; text-decoration-thickness: 1px; }
.notes a:hover { color: var(--ink); }

/* Depoimentos */
.quotes { display: grid; gap: 2.5rem 3rem; margin-top: 3rem; }
@media (min-width: 52rem) { .quotes { grid-template-columns: 1fr 1fr; } }
.quote { margin: 0; }
.quote blockquote { margin: 0; font-family: var(--serif); font-size: 1.35rem; line-height: 1.4; }
.quote figcaption { margin-top: 1rem; font-size: .9375rem; color: var(--mute); }
.quote figcaption b { color: var(--ink); font-weight: 500; display: block; }
.quote.is-slot blockquote { color: var(--mute); }
.quote .theme { font-size: .8125rem; color: var(--pine); margin-bottom: .5rem; }

/* CTA final */
.closing { padding-block: var(--space-section); background: var(--ink); color: var(--paper); }
.closing h2 { color: var(--paper); max-width: 16ch; font-size: clamp(2.2rem, 5vw, 4rem); }
.closing p { color: color-mix(in srgb, var(--paper) 78%, var(--ink)); font-size: 1.2rem; margin-top: 1.5rem; max-width: 34rem; }
.closing .btn { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.closing .btn:hover { background: var(--paper-2); border-color: var(--paper-2); color: var(--ink); }
.closing .alt { font-size: .9375rem; color: color-mix(in srgb, var(--paper) 65%, var(--ink)); }
.closing .alt a { color: var(--paper); }

/* Foto (espaço reservado para retrato real) */
.photo {
  margin: 0; aspect-ratio: 4 / 5; background: var(--paper-2);
  border: 1px solid var(--rule); border-radius: 4px; display: grid; place-items: end start; overflow: hidden;
}
.photo.wide { aspect-ratio: 3 / 2; }
.photo img { width: 100%; height: 100%; object-fit: cover; }
.photo figcaption { padding: 1rem 1.25rem; font-size: .875rem; color: var(--mute); max-width: 26rem; }

/* ---------- Páginas internas ---------- */

.page-head { padding-block: clamp(3rem, 8vw, 6rem) clamp(2.5rem, 5vw, 4rem); }
.page-head h1 { font-size: clamp(2.4rem, 5.4vw, 4.4rem); max-width: 16ch; }
.page-head .lede { margin-top: 1.5rem; max-width: 38rem; }

.compare { width: 100%; border-collapse: collapse; margin-top: 2.5rem; font-size: 1rem; }
.compare th, .compare td { text-align: left; vertical-align: top; padding: 1.1rem 1.25rem 1.1rem 0; border-top: 1px solid var(--rule); }
.compare thead th { font-weight: 500; font-size: .9375rem; color: var(--mute); border-top: 0; padding-bottom: .75rem; }
.compare tbody th { font-family: var(--serif); font-weight: 400; font-size: 1.25rem; width: 22%; }
.compare td { color: var(--ink-2); }
.compare tr.self th, .compare tr.self td { color: var(--ink); }
.compare tr.self th { color: var(--pine); }
.table-scroll { overflow-x: auto; }
.table-scroll .compare { min-width: 40rem; }

.qa { margin-top: 2.5rem; }
.qa h3 { margin-top: 2.5rem; margin-bottom: .6rem; }
.qa h3:first-child { margin-top: 0; }

/* Ensaio */
.essay { padding-block: clamp(3rem, 8vw, 6rem) var(--space-section); }
.essay header { max-width: 44rem; }
.essay h1 { font-size: clamp(2.3rem, 5vw, 3.9rem); line-height: 1.06; }
.essay .meta { margin-top: 1.25rem; font-size: .9375rem; color: var(--mute); }
.essay .body { max-width: 40rem; margin-top: 3rem; }
.essay .body p { font-family: var(--serif); font-size: 1.28rem; line-height: 1.68; max-width: none; }
.essay .body h2 { font-size: 1.75rem; margin: 2.75rem 0 1rem; }
.essay .body blockquote { margin: 2rem 0; padding-left: 1.5rem; border-left: 2px solid var(--pine); }
.essay .body blockquote p { font-size: 1.45rem; line-height: 1.45; }
.essay .body ul { font-family: var(--serif); font-size: 1.22rem; line-height: 1.6; padding-left: 1.25rem; }
.essay .body li { margin-bottom: .4rem; }
.essay .after { max-width: 40rem; margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--rule); }
.back { display: inline-block; margin-bottom: 2rem; font-size: .9375rem; color: var(--mute); }

/* Formulário */
.form { display: grid; gap: 1.4rem; max-width: 38rem; }
.form .row { display: grid; gap: 1.4rem; }
@media (min-width: 40rem) { .form .row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: .45rem; }
.field label { font-size: .9375rem; font-weight: 500; }
.field .hint { font-size: .875rem; color: var(--mute); font-weight: 400; }
.field input, .field textarea {
  font: inherit; color: var(--ink); background: transparent;
  border: 1px solid var(--rule); border-radius: 4px; padding: .8rem .9rem; width: 100%;
}
.field textarea { min-height: 10rem; resize: vertical; line-height: 1.5; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--pine); box-shadow: 0 0 0 1px var(--pine); }
.field [aria-invalid="true"] { border-color: #a23b2f; }
.form-status { font-size: .9375rem; color: var(--ink-2); min-height: 1.5em; margin: 0; }

.contact-aside { display: grid; gap: 2rem; align-content: start; }
.contact-aside h3 { font-size: 1.2rem; margin-bottom: .4rem; }
.contact-aside p { color: var(--ink-2); margin: 0; }

/* ---------- Rodapé ---------- */

.site-footer { padding-block: 3.5rem 3rem; border-top: 1px solid var(--rule); font-size: .9375rem; color: var(--mute); }
.site-footer .wrap { display: grid; gap: 2rem; }
@media (min-width: 48rem) { .site-footer .wrap { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer .brand { color: var(--ink); }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { text-decoration: underline; color: var(--ink); }
.site-footer p { margin: .75rem 0 0; }