/* Valiati Soluções Ambientais — site institucional.
   Conceito: prancha técnica de campo. Curvas de nível e marcos de estaqueamento
   ligam as duas frentes da empresa (meio ambiente e topografia); cores e o
   ponto-folha vêm da identidade visual da marca (pasta Visual/). */
:root {
  --paper: #f5f6f3;
  --surface: #ffffff;
  --ink: #231f20;
  --muted: #58595b;
  --line: #dde2dc;
  --forest: #00492a;
  --forest-ink: #f5f6f3;
  --leaf: #82c55e;
  --leaf-mid: #00a649;
  --stake: #00783d;
  --contour: #c6d8c7;
  --contour-major: #9fc2a2;
  --font-display: "Rubik", "Ubuntu", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Ubuntu", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "Ubuntu Mono", ui-monospace, Consolas, monospace;
  --wrap: 1160px;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--leaf-mid); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 24px; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; z-index: 10; }
.skip:focus { left: 16px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--forest);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before { content: ""; width: 9px; height: 9px; background: var(--leaf-mid); border-radius: 50%; flex: none; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -.015em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(36px, 5.4vw, 60px); line-height: 1.06; letter-spacing: -.025em; font-weight: 700; }
h2 { font-size: clamp(30px, 3.8vw, 42px); line-height: 1.12; }
h3 { font-size: 23px; line-height: 1.2; }
p { margin: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  padding: 13px 22px;
  border-radius: 6px;
  border: 1.5px solid var(--forest);
  transition: background .15s ease, color .15s ease;
}
.btn-primary { background: var(--forest); color: var(--forest-ink); }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); }
.btn-ghost { color: var(--forest); background: transparent; }
.btn-ghost:hover { background: var(--surface); }

/* Cabeçalho */
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { display: block; height: 46px; width: auto; }
.brand-name { display: grid; line-height: 1.1; }
.brand-name b { font-family: var(--font-display); font-size: 22px; font-weight: 600; }
.brand-name small { font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a:not(.btn) { text-decoration: none; font-weight: 500; font-size: 15px; color: var(--muted); }
.nav a:not(.btn):hover { color: var(--ink); }
.nav .btn { padding: 9px 16px; font-size: 15px; }

/* Abertura */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.contours { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.contours path { fill: none; stroke: var(--contour); stroke-width: 1; }
.contours path.major { stroke: var(--contour-major); stroke-width: 1.4; }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--paper) 30%, color-mix(in srgb, var(--paper) 40%, transparent) 70%, transparent);
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; padding-block: 96px 88px; display: grid; gap: 28px; }
.hero h1 { max-width: 15ch; }
.hero .lede { font-size: 20px; color: var(--muted); max-width: 52ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }

/* Frentes de atuação */
.fronts { background: var(--forest); color: var(--forest-ink); }
.fronts .wrap { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.front { padding: 32px 28px; display: grid; gap: 6px; border-left: 1px solid color-mix(in srgb, var(--forest-ink) 18%, transparent); }
.front:first-child { border-left: 0; padding-left: 0; }
.front b { font-family: var(--font-display); font-size: 22px; font-weight: 600; }
.front span { font-size: 15px; opacity: .82; }

/* Seções */
.section { padding-block: 96px; }
.section-head { display: grid; gap: 16px; max-width: 720px; margin-bottom: 48px; }
.section-head p { color: var(--muted); font-size: 18px; }

.services { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); }
.service {
  padding: 36px 40px 40px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 16px;
  align-content: start;
  min-width: 0;
}
.service:nth-child(even) { padding-left: 40px; padding-right: 0; border-left: 1px solid var(--line); }
.service-head { display: grid; gap: 6px; }
.service-tag { font-family: var(--font-mono); font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--stake); }
.service p { color: var(--muted); }
.service ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.service li { position: relative; padding-left: 22px; }
.service li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .62em;
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--forest);
  border-radius: 50%;
}
.service abbr { text-decoration: none; font-family: var(--font-mono); font-size: .86em; font-weight: 500; color: var(--forest); }

/* ONR */
.onr { background: var(--surface); border-block: 1px solid var(--line); }
.onr .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 64px; align-items: center; padding-block: 80px; }
.onr-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.onr-list li { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 12px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.onr-list svg { width: 24px; height: 24px; color: var(--forest); margin-top: 2px; }
.onr-list b { display: block; }
.onr-list span { color: var(--muted); font-size: 15px; }

/* Como trabalhamos */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; counter-reset: step; }
.step { position: relative; display: grid; gap: 10px; align-content: start; padding-top: 28px; border-top: 2px solid var(--forest); counter-increment: step; }
.step::before {
  content: "Estaca " counter(step);
  position: absolute;
  top: -12px;
  left: 0;
  background: var(--paper);
  padding-right: 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--stake);
}
.step p { color: var(--muted); font-size: 16px; }

/* Contato */
.contact { background: var(--ink); color: var(--paper); }
.contact .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 64px; padding-block: 96px; align-items: end; }
.contact .eyebrow { color: color-mix(in srgb, var(--paper) 80%, transparent); }
.contact p.lede { color: color-mix(in srgb, var(--paper) 78%, transparent); font-size: 18px; margin-top: 16px; max-width: 46ch; }
.contact-card { display: grid; gap: 18px; padding: 28px; border: 1px solid color-mix(in srgb, var(--paper) 22%, transparent); border-radius: 10px; }
.contact-card dt { font-family: var(--font-mono); font-size: 14px; letter-spacing: .08em; text-transform: uppercase; opacity: .7; }
.contact-card dd { margin: 4px 0 0; font-size: 20px; overflow-wrap: anywhere; }
.contact-card dd a { text-decoration-color: var(--leaf); text-underline-offset: 4px; }
.contact .btn-primary { background: var(--leaf); border-color: var(--leaf); color: var(--ink); justify-self: start; }
.contact .btn-primary:hover { background: var(--paper); border-color: var(--paper); }

/* Rodapé */
.site-footer { background: var(--ink); color: color-mix(in srgb, var(--paper) 70%, transparent); border-top: 1px solid color-mix(in srgb, var(--paper) 14%, transparent); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; padding-block: 28px; }
.site-footer img { display: block; height: 38px; width: auto; }
.site-footer a { color: var(--paper); }

@media (max-width: 960px) {
  .nav a:not(.btn) { display: none; }
  .fronts .wrap { grid-template-columns: minmax(0, 1fr); }
  .front, .front:first-child { border-left: 0; padding: 22px 0; border-top: 1px solid color-mix(in srgb, var(--forest-ink) 18%, transparent); }
  .front:first-child { border-top: 0; }
  .services { grid-template-columns: minmax(0, 1fr); }
  .service, .service:nth-child(even) { padding: 32px 0; border-left: 0; }
  .onr .wrap, .contact .wrap { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 40px; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { padding-inline: 16px; }
  .brand img { height: 38px; }
  .hero .wrap { padding-block: 64px 56px; }
  .hero .lede { font-size: 18px; }
  .hero::after { background: linear-gradient(180deg, color-mix(in srgb, var(--paper) 55%, transparent), var(--paper) 85%); }
  .section { padding-block: 72px; }
  .steps { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn { transition: none; } }
.section-head-flush { margin-bottom: 0; }

/* Sobre */
.about .wrap { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 64px; align-items: start; }
.about-id { display: grid; gap: 14px; align-content: start; }
.about-id img { width: 72px; height: auto; }
.about-id .role { font-family: var(--font-mono); font-size: 15px; letter-spacing: .06em; text-transform: uppercase; color: var(--stake); }
.about-text { display: grid; gap: 28px; font-size: 18px; max-width: 62ch; }
.about-lead { font-family: var(--font-display); font-weight: 600; font-size: clamp(22px, 2.4vw, 27px); line-height: 1.3; letter-spacing: -.01em; text-wrap: balance; }
.about-areas { display: grid; gap: 14px; padding: 24px 26px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
.about-label { font-family: var(--font-mono); font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--stake); }
.about-areas ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 24px; }
.about-areas li { position: relative; padding-left: 22px; font-weight: 500; }
.about-areas li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 9px; height: 9px; border-radius: 50%; background: var(--leaf-mid); }
.about-areas-note { color: var(--muted); font-size: 16px; padding-top: 12px; border-top: 1px solid var(--line); }
.about-text > p:not([class]) { color: var(--muted); }
.about-quote { margin: 0; padding: 4px 0 4px 22px; border-left: 3px solid var(--leaf); font-family: var(--font-body); font-weight: 500; font-size: 20px; line-height: 1.55; color: var(--forest); }
@media (max-width: 560px) { .about-areas ul { grid-template-columns: minmax(0, 1fr); } .about-areas { padding: 20px; } .about-quote { font-size: 18px; } }
@media (max-width: 960px) { .about .wrap { grid-template-columns: minmax(0, 1fr); gap: 32px; } }
.contact-card dl { margin: 0; }

/* WhatsApp */
.btn svg { width: 20px; height: 20px; flex: none; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.btn-outline-light { color: var(--paper); border-color: color-mix(in srgb, var(--paper) 45%, transparent); background: transparent; }
.btn-outline-light:hover { border-color: var(--paper); }
.wa-float {
  position: fixed;
  right: 20px;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  z-index: 6;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px 12px 14px;
  border-radius: 999px;
  background: #1f8f4e;
  color: #ffffff;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(0, 40, 20, .28);
}
.wa-float svg { width: 26px; height: 26px; }
.wa-float:hover { background: var(--forest); }
@media (max-width: 560px) {
  .wa-float { padding: 14px; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom, 0px)); }
  .wa-float span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
}

/* Chamada para o WhatsApp ao fim dos serviços */
.wa-cta {
  margin-top: 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  padding: 32px 36px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--leaf-mid);
  border-radius: 10px;
}
.wa-cta h3 { font-size: 26px; }
.wa-cta p { color: var(--muted); margin-top: 8px; max-width: 60ch; }
.wa-cta .btn { white-space: nowrap; }
@media (max-width: 720px) {
  .wa-cta { grid-template-columns: minmax(0, 1fr); padding: 24px; gap: 20px; }
  .wa-cta h3 { font-size: 22px; }
  .wa-cta .btn { justify-self: start; white-space: normal; }
}
.about .wrap.wa-wrap { display: block; }

/* Linha de saída ao fim da lista de serviços */
.services-note { position: relative; margin-top: 40px; padding-left: 21px; font-size: 18px; color: var(--muted); }
.services-note::before { content: ""; position: absolute; left: 0; top: .62em; width: 9px; height: 9px; border-radius: 50%; background: var(--leaf-mid); }
.services-note a { color: var(--forest); font-weight: 500; text-decoration-color: var(--leaf); text-underline-offset: 4px; text-decoration-thickness: 2px; }
.services-note a:hover { color: var(--ink); }