/* ============================================================
   UF Construções — folha de estilo do site institucional (v1)
   Identidade: preto quente + lima (marca) + magenta (réguas)
   ============================================================ */

:root {
  /* cores da marca */
  --lime: #CFE904;
  --lime-deep: #9DB300;      /* lima escurecido para texto sobre fundo claro */
  --magenta: #830873;
  --magenta-soft: #A8248F;

  /* grounds */
  --ink: #1B1715;            /* fundo escuro principal (preto quente dos slides) */
  --ink-2: #2A2321;          /* fundo escuro secundário */
  --ink-3: #3A312E;          /* bordas / linhas sobre escuro */
  --concrete: #EAE6DF;       /* fundo claro "concreto" */
  --concrete-2: #DCD6CC;
  --paper: #F7F5F0;

  /* texto */
  --on-dark: #F4F0E9;
  --on-dark-muted: #B9B1A6;
  --on-light: #1B1715;
  --on-light-muted: #5E5650;

  /* tipografia */
  --display: "Cormorant Garamond", "Cormorant", Georgia, "Times New Roman", serif;
  --sans: "Jost", "Century Gothic", "Avenir Next", Futura, "Helvetica Neue", Arial, sans-serif;

  --measure: 62ch;
  --wrap: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 4px;

  color-scheme: dark;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--on-dark);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--lime); outline-offset: 3px; }

h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.05; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(2.6rem, 6.5vw, 5.4rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(2.1rem, 4.2vw, 3.4rem); }
h3 { font-size: 1.45rem; font-weight: 600; }
p { margin: 0; }

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

/* ---------- réguas e eyebrows (motivo dos slides) ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase; font-weight: 500;
  color: var(--on-dark-muted);
}
.eyebrow::before { content: ""; width: 34px; height: 3px; background: var(--magenta); }
.section-light .eyebrow { color: var(--on-light-muted); }

.rule { height: 4px; background: var(--magenta); width: min(100%, 220px); margin-top: 22px; }

.section { padding-block: clamp(72px, 10vw, 128px); }
.section-light { background: var(--concrete); color: var(--on-light); }
.section-paper { background: var(--paper); color: var(--on-light); }
.section-dark2 { background: var(--ink-2); }

.section-head { display: grid; gap: 18px; max-width: 760px; margin-bottom: clamp(36px, 5vw, 64px); }
.section-head p { font-size: 1.1rem; color: var(--on-dark-muted); max-width: var(--measure); }
.section-light .section-head p, .section-paper .section-head p { color: var(--on-light-muted); }

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 2px;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.04em; text-transform: uppercase;
  text-decoration: none; border: 2px solid transparent;
  transition: transform .15s ease, background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-lime { background: var(--lime); color: #111; border-color: var(--lime); }
.btn-lime:hover { background: #E1F53A; border-color: #E1F53A; }
.btn-ghost { background: transparent; color: var(--on-dark); border-color: var(--ink-3); }
.btn-ghost:hover { border-color: var(--on-dark); }
.btn-dark { background: var(--ink); color: var(--on-dark); border-color: var(--ink); }
.btn-dark:hover { background: #000; }
.btn svg { width: 20px; height: 20px; flex: none; }

/* ---------- topo ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: rgba(27, 23, 21, 0.92);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ink-3);
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 14px; text-decoration: none; }
.brand svg { height: 40px; width: auto; }
.brand-word { font-weight: 700; letter-spacing: 0.12em; font-size: 0.92rem; text-transform: uppercase; }
.nav { display: flex; gap: 28px; }
.nav a { text-decoration: none; font-size: 0.92rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--on-dark-muted); padding: 6px 0; border-bottom: 2px solid transparent; }
.nav a:hover { color: var(--on-dark); border-bottom-color: var(--lime); }
.topbar .btn { padding: 10px 18px; font-size: 0.82rem; }
@media (max-width: 900px) { .nav { display: none; } }
@media (max-width: 480px) { .brand-word { display: none; } .topbar .btn span { display: none; } .topbar .btn { padding: 10px 12px; } }

/* ---------- hero ---------- */
.hero { padding-block: clamp(56px, 8vw, 110px) clamp(56px, 7vw, 96px); overflow: hidden; position: relative; }
.hero::before {
  /* textura sutil de "grade estrutural" */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--ink-3) 1px, transparent 1px), linear-gradient(90deg, var(--ink-3) 1px, transparent 1px);
  background-size: 96px 96px; opacity: 0.22;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 6vw, 96px); align-items: center; }
.hero-copy { display: grid; gap: 28px; }
.hero h1 em { font-style: italic; font-weight: 500; color: var(--lime); }
.hero-lead { font-size: 1.18rem; color: var(--on-dark-muted); max-width: 54ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 28px; padding-top: 10px; border-top: 1px solid var(--ink-3); font-size: 0.9rem; color: var(--on-dark-muted); }
.hero-meta strong { display: block; color: var(--on-dark); font-weight: 600; font-size: 1rem; }

.hero-figure { position: relative; margin: 0; }
.hero-figure img { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; border-radius: var(--radius); filter: saturate(0.92) contrast(1.05); }
.hero-figure::after {
  /* moldura deslocada em lima: cita a barra "|" da marca */
  content: ""; position: absolute; inset: 18px -18px -18px 18px; border: 3px solid var(--lime); border-radius: var(--radius); z-index: -1;
}
.hero-figure figcaption {
  position: absolute; left: 0; bottom: 0; margin: 0;
  background: var(--ink); color: var(--on-dark); font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 10px 16px; border-top: 3px solid var(--magenta);
}
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-figure { max-width: 460px; }
}

/* ---------- sobre ---------- */
.about .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 96px); align-items: start; }
.about-text { display: grid; gap: 22px; }
.about-text .lead { font-family: var(--display); font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.3; font-weight: 500; }
.about-text p:not(.lead) { color: var(--on-light-muted); max-width: var(--measure); }
.pillars { display: grid; gap: 0; border-top: 1px solid var(--concrete-2); }
.pillar { display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--concrete-2); }
.pillar-mark { width: 56px; height: 56px; display: grid; place-items: center; border: 2px solid var(--on-light); }
.pillar-mark svg { width: 26px; height: 26px; stroke: var(--on-light); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.pillar h3 { margin-bottom: 6px; }
.pillar p { color: var(--on-light-muted); font-size: 0.98rem; }
@media (max-width: 900px) { .about .wrap { grid-template-columns: 1fr; } }

/* ---------- serviços ---------- */
.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service { display: grid; grid-template-rows: auto 1fr; background: var(--ink-2); border: 1px solid var(--ink-3); border-radius: var(--radius); overflow: hidden; }
.service img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; filter: saturate(0.85); transition: filter .25s ease; }
.service:hover img { filter: saturate(1); }
.service-body { padding: 22px 22px 26px; display: grid; gap: 10px; align-content: start; border-top: 3px solid var(--lime); }
.service-body p { color: var(--on-dark-muted); font-size: 0.97rem; }
@media (max-width: 1000px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .services-grid { grid-template-columns: 1fr; } }

.specialties { margin-top: clamp(40px, 5vw, 64px); display: grid; grid-template-columns: 300px 1fr; gap: 32px; align-items: start; padding-top: 32px; border-top: 1px solid var(--ink-3); }
.specialties h3 { font-size: 1.6rem; }
.specialties ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 32px; }
.specialties li { display: flex; gap: 12px; align-items: baseline; color: var(--on-dark); padding: 8px 0; border-bottom: 1px dashed var(--ink-3); }
.specialties li::before { content: ""; flex: none; width: 8px; height: 8px; background: var(--lime); transform: translateY(-2px); }
@media (max-width: 900px) { .specialties { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .specialties ul { grid-template-columns: 1fr; } }

/* ---------- obras ---------- */
.works { display: grid; grid-auto-flow: dense; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 260px; gap: 16px; }
.work { position: relative; margin: 0; overflow: hidden; border-radius: var(--radius); background: var(--ink-2); }
.work img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.85); transition: transform .5s ease, filter .3s ease; }
.work:hover img { transform: scale(1.04); filter: saturate(1); }
.work figcaption {
  position: absolute; inset: auto 0 0 0; padding: 40px 18px 16px;
  background: linear-gradient(180deg, transparent, rgba(27,23,21,.92));
  font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.86rem;
}
.work figcaption small { display: block; font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--on-dark-muted); font-size: 0.85rem; margin-top: 2px; }
.work-tall { grid-row: span 2; }
@media (max-width: 900px) { .works { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 220px; } }
@media (max-width: 560px) { .works { grid-template-columns: 1fr; grid-auto-rows: 240px; } .work-tall { grid-row: span 1; } }

/* ---------- clientes ---------- */
.clients { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.client { background: #fff; border: 1px solid var(--concrete-2); border-radius: var(--radius); display: grid; place-items: center; padding: 18px; min-height: 110px; }
.client img { max-height: 72px; width: auto; object-fit: contain; }
@media (max-width: 1000px) { .clients { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 700px) { .clients { grid-template-columns: repeat(3, 1fr); } .client { min-height: 90px; padding: 12px; } .client img { max-height: 56px; } }
@media (max-width: 440px) { .clients { grid-template-columns: repeat(2, 1fr); } }

/* ---------- contato ---------- */
.contact .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 96px); align-items: start; }
.contact-list { display: grid; gap: 0; border-top: 1px solid var(--ink-3); }
.contact-item { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--ink-3); }
.contact-item dt { font-size: 0.74rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--on-dark-muted); padding-top: 4px; }
.contact-item dd { margin: 0; font-size: 1.12rem; }
.contact-item dd a { text-decoration: none; border-bottom: 1px solid var(--ink-3); }
.contact-item dd a:hover { border-bottom-color: var(--lime); }
.contact-item dd small { display: block; color: var(--on-dark-muted); font-size: 0.9rem; }
.phone-big { font-family: var(--display); white-space: nowrap; font-size: clamp(1.9rem, 3.6vw, 3rem); font-weight: 600; line-height: 1; }
.contact-card { background: var(--ink-2); border: 1px solid var(--ink-3); border-top: 4px solid var(--lime); padding: clamp(24px, 3vw, 40px); display: grid; gap: 20px; }
.contact-card h3 { font-size: 1.9rem; }
.contact-card p { color: var(--on-dark-muted); }
.contact-card .btn { justify-self: start; }
@media (max-width: 900px) { .contact .wrap { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .contact-item { grid-template-columns: 1fr; gap: 4px; } }

/* ---------- rodapé ---------- */
.footer { border-top: 1px solid var(--ink-3); padding-block: 36px; font-size: 0.88rem; color: var(--on-dark-muted); }
.footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; align-items: center; }
.footer .brand svg { height: 34px; }