/* Montagna, site institucional. Direção: clean B2B premium, editorial tipográfico.
   Paleta: off-white quente, grafite, um acento verde-floresta.
   Tipografia: Spectral (títulos) + Manrope (corpo). */

:root {
  --paper: oklch(0.965 0.008 95);
  --paper-2: oklch(0.94 0.01 92);
  --ink: oklch(0.27 0.012 80);
  --ink-soft: oklch(0.4 0.012 82);
  --muted: oklch(0.55 0.01 85);
  --hairline: oklch(0.875 0.008 90);
  --accent: oklch(0.4 0.07 158);
  --accent-deep: oklch(0.33 0.065 158);
  --accent-tint: oklch(0.925 0.022 155);
  --erro: oklch(0.5 0.11 40);

  --serif: "Spectral", Georgia, "Times New Roman", serif;
  --sans: "Manrope", system-ui, -apple-system, sans-serif;

  --passo--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.88rem);
  --passo-0: clamp(0.95rem, 0.9rem + 0.25vw, 1.1rem);
  --passo-1: clamp(1.15rem, 1.05rem + 0.5vw, 1.45rem);
  --passo-2: clamp(1.45rem, 1.25rem + 1vw, 2rem);
  --passo-3: clamp(1.85rem, 1.5rem + 1.75vw, 2.8rem);
  --passo-4: clamp(2.4rem, 1.8rem + 3vw, 4.2rem);

  --largura: 72rem;
  --margem: clamp(1.25rem, 4vw, 3rem);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--passo-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Grão sutil sobre a página inteira, SVG inline, sem asset externo. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection {
  background: var(--accent);
  color: var(--paper);
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ============ tipografia utilitária ============ */

.eyebrow {
  font-size: var(--passo--1);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.1rem;
}

.secao-titulo {
  font-family: var(--serif);
  font-weight: 500;
  font-size: var(--passo-3);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 18ch;
}

/* ============ botões ============ */

.btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: var(--passo-0);
  text-decoration: none;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--paper);
  padding: 0.85rem 1.75rem;
  cursor: pointer;
  transition: background 0.25s ease, transform 0.25s ease;
}

.btn:hover { background: var(--accent-deep); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-header { padding: 0.55rem 1.2rem; font-size: var(--passo--1); }

.btn-principal { letter-spacing: 0.01em; }

.btn-form { width: 100%; margin-top: 0.5rem; }

/* ============ header ============ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.site-header.is-scrolled { border-bottom-color: var(--hairline); }

.header-inner {
  max-width: var(--largura);
  margin: 0 auto;
  padding: 1rem var(--margem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--serif);
  font-weight: 600;
  font-size: var(--passo-1);
  letter-spacing: 0.01em;
  color: var(--ink);
  text-decoration: none;
  margin: 0;
}

/* ============ hero ============ */

.hero {
  position: relative;
  padding: clamp(8rem, 18vh, 12rem) var(--margem) clamp(4rem, 9vh, 7rem);
  overflow: hidden;
}

/* Lavado do acento no canto, abstrato e sutil, CSS puro. */
.hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -20%;
  width: 70vmax;
  height: 70vmax;
  background: radial-gradient(closest-side, var(--accent-tint), transparent);
  opacity: 0.65;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: var(--largura);
  margin: 0 auto;
}

.hero-titulo {
  font-family: var(--serif);
  font-weight: 500;
  font-size: var(--passo-4);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0;
  max-width: 15ch;
}

.hero-titulo em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: var(--passo-1);
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 1.75rem 0 0;
}

.hero-acoes {
  margin-top: 2.75rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem 2rem;
}

.hero-meta {
  margin: 0;
  font-size: var(--passo--1);
  color: var(--muted);
}

/* Hairline vertical decorativa marcando o fim do hero em telas largas. */
.hero-linha {
  display: none;
}

/* ============ seções genéricas ============ */

.secao-head {
  max-width: var(--largura);
  margin: 0 auto clamp(2.5rem, 6vw, 4rem);
}

.servicos,
.pra-quem,
.contato {
  padding: clamp(4rem, 10vw, 7.5rem) var(--margem);
}

/* ============ serviços ============ */

.servicos-lista {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: var(--largura);
}

.servico {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  column-gap: 1.5rem;
  row-gap: 0.5rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--hairline);
}

.servico:last-child { border-bottom: 1px solid var(--hairline); }

.servico-num {
  font-family: var(--serif);
  font-style: italic;
  font-size: var(--passo-1);
  color: var(--accent);
  line-height: 1.4;
}

.servico-titulo {
  font-family: var(--serif);
  font-weight: 500;
  font-size: var(--passo-2);
  line-height: 1.2;
  margin: 0;
  grid-column: 2;
}

.servico-texto {
  grid-column: 2;
  margin: 0;
  color: var(--ink-soft);
  max-width: 52ch;
}

/* ============ pra quem é ============ */

.pra-quem { background: var(--paper-2); }

.pra-quem-grid {
  max-width: var(--largura);
  margin: 0 auto;
  display: grid;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.bloco { padding: clamp(1.75rem, 4vw, 3rem); }

.bloco-sim { background: var(--accent-tint); }
.bloco-nao { background: var(--paper); }

.bloco-titulo {
  font-family: var(--serif);
  font-weight: 500;
  font-size: var(--passo-2);
  margin: 0 0 1.5rem;
}

.bloco-sim .bloco-titulo { color: var(--accent-deep); }

.bloco-lista {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.bloco-lista li {
  position: relative;
  padding-left: 1.75rem;
  color: var(--ink-soft);
}

.bloco-lista li::before {
  position: absolute;
  left: 0;
  top: 0;
  font-weight: 700;
}

.bloco-sim .bloco-lista li::before { content: "+"; color: var(--accent); }
.bloco-nao .bloco-lista li::before { content: "×"; color: var(--muted); }

/* ============ prova ============ */

.prova { padding: clamp(3rem, 8vw, 5.5rem) var(--margem); }

.prova-linha {
  max-width: var(--largura);
  margin: 0 auto;
  display: grid;
  gap: 2rem;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: clamp(2rem, 5vw, 3.5rem) 0;
}

.prova-item {
  display: grid;
  gap: 0.35rem;
}

.prova-rotulo {
  font-size: var(--passo--1);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  order: -1;
}

.prova-numero {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  line-height: 1;
  margin: 0;
  letter-spacing: -0.01em;
}

.prova-mais { color: var(--accent); }

.prova-local { font-style: italic; }

/* ============ imagens editoriais ============ */

.midia {
  margin: 0;
  border: 1px solid var(--hairline);
  background: var(--paper-2);
}

.midia img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.midia figcaption {
  border-top: 1px solid var(--hairline);
  padding: 0.7rem 1rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: var(--passo--1);
  color: var(--muted);
}

.hero-midia { margin-top: clamp(3rem, 7vh, 5rem); }

.servicos-midia {
  max-width: var(--largura);
  margin: clamp(3rem, 7vw, 5rem) auto 0;
}

.prova-midias {
  display: grid;
  gap: 1.25rem;
  margin: 0 0 2.5rem;
}

/* ============ contato ============ */
.contato-grid {
  max-width: var(--largura);
  margin: 0 auto;
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
}

.contato-sub {
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 1.5rem 0 0;
}

.form {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}

.campo { display: grid; gap: 0.45rem; }

.campo label {
  font-size: var(--passo--1);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.campo input,
.campo select {
  font-family: var(--sans);
  font-size: var(--passo-0);
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--hairline);
  border-radius: 0;
  padding: 0.65rem 0;
  width: 100%;
  transition: border-color 0.25s ease;
  appearance: none;
}

.campo input::placeholder { color: var(--muted); }

.campo input:focus,
.campo select:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.campo input.invalido,
.campo select.invalido { border-bottom-color: var(--erro); }

.select-wrap { position: relative; }

.select-wrap::after {
  content: "";
  position: absolute;
  right: 0.25rem;
  top: 50%;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 1.5px solid var(--muted);
  border-bottom: 1.5px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.campo select { cursor: pointer; padding-right: 1.5rem; }
.campo select:invalid { color: var(--muted); }

.form-erro {
  margin: 0;
  font-size: var(--passo--1);
  font-weight: 600;
  color: var(--erro);
}

/* ============ footer ============ */

.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 2.5rem var(--margem);
}

.footer-inner {
  max-width: var(--largura);
  margin: 0 auto;
  display: grid;
  gap: 0.35rem;
}

.logo-footer { font-size: var(--passo-1); }

.footer-linha {
  margin: 0;
  font-size: var(--passo--1);
  color: var(--ink-soft);
}

.footer-copy {
  margin: 0.75rem 0 0;
  font-size: var(--passo--1);
  color: var(--muted);
}
/* ============ modal ============ */

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal[hidden] { display: none; }

.modal-overlay {
  position: absolute;
  inset: 0;
  background: oklch(0.25 0.012 80 / 0.45);
}

.modal-card {
  position: relative;
  background: var(--paper);
  border-top: 3px solid var(--accent);
  width: 100%;
  max-width: 30rem;
  max-height: calc(100vh - 2.5rem);
  overflow-y: auto;
  padding: clamp(1.75rem, 5vw, 2.75rem);
}

.modal-fechar {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--muted);
  cursor: pointer;
  padding: 0.35rem 0.6rem;
}

.modal-fechar:hover { color: var(--ink); }

.modal-titulo {
  font-family: var(--serif);
  font-weight: 500;
  font-size: var(--passo-2);
  margin: 0;
}

.modal-sub {
  margin: 0.6rem 0 1.5rem;
  color: var(--ink-soft);
  font-size: var(--passo--1);
}

.slots {
  display: grid;
  border-bottom: 1px solid var(--hairline);
}

.slot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  background: none;
  border: none;
  border-top: 1px solid var(--hairline);
  padding: 1rem 0.25rem;
  font-family: var(--serif);
  font-size: var(--passo-1);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, padding-left 0.2s ease;
}

.slot:hover {
  background: var(--accent-tint);
  padding-left: 0.75rem;
}

.slot::after {
  content: "→";
  font-family: var(--sans);
  color: var(--accent);
}

.modal-sucesso { text-align: left; }

.sucesso-icone {
  display: block;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  border: 1.5px solid var(--accent);
  position: relative;
  margin-bottom: 1.25rem;
}

.sucesso-icone::after {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 0.75rem;
  width: 0.55rem;
  height: 1rem;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(40deg);
}

.sucesso-horario {
  margin: 0 0 0.35rem;
  font-family: var(--serif);
  font-style: italic;
  font-size: var(--passo-1);
  color: var(--accent-deep);
}

.sucesso-texto {
  margin: 0 0 1.75rem;
  color: var(--ink-soft);
}

/* ============ reveal no scroll ============ */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease-out, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ============ breakpoints ============ */

@media (min-width: 48rem) {
  .pra-quem-grid { grid-template-columns: 1fr 1fr; }

  .prova-linha { grid-template-columns: repeat(3, 1fr); }

  .prova-item + .prova-item {
    border-left: 1px solid var(--hairline);
    padding-left: clamp(1.5rem, 3vw, 2.5rem);
  }

  .servico {
    grid-template-columns: 4rem 1.1fr 1fr;
    align-items: baseline;
    column-gap: 2.5rem;
  }

  .servico-titulo { grid-column: 2; }
  .servico-texto { grid-column: 3; }

  .prova-midias { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 64rem) {
  .contato-grid { grid-template-columns: 1fr 1fr; }

  .hero-midia img,
  .servicos-midia img { aspect-ratio: 21 / 10; }

  .hero-linha {
    display: block;
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 1px;
    height: clamp(3rem, 8vh, 5rem);
    background: var(--hairline);
  }

  .footer-inner {
    grid-template-columns: auto 1fr auto;
    align-items: baseline;
    gap: 2rem;
  }

  .footer-copy { margin: 0; text-align: right; }
}

/* ============ movimento reduzido ============ */

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

  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* ============ ajustes após aplicação da copy ============ */

.prova-inner {
  max-width: var(--largura);
  margin: 0 auto;
}

.prova-texto {
  max-width: 62ch;
  color: var(--ink-soft);
  margin: 0 0 2.5rem;
}

.prova-linha { margin: 0 0 2.5rem; }

.prova-cta { margin-top: 0.5rem; }

.bloco-lista strong,
.prova-texto strong {
  color: var(--ink);
  font-weight: 700;
}

.campo-ajuda {
  margin: 0;
  font-size: var(--passo--1);
  color: var(--muted);
}

.slot.selecionado {
  background: var(--accent-tint);
  padding-left: 0.75rem;
}

.slot.selecionado::after { content: "✓"; }

#modal-confirmar { margin-top: 1.5rem; }