/* ===========================================================
   Construsa — Design System
   Paleta extraída da logo: verdes #6b8061 / #707f64,
   sage claro #96a88e, off-white creme #fdf9ee
   =========================================================== */

:root {
  --color-bg: #fdf9ee;
  --color-surface: #ffffff;
  --color-ink: #232920;
  --color-ink-soft: #4e5748;
  --color-steel: #707f64;
  --color-steel-dark: #3a4433;
  --color-accent: #6b8061;
  --color-accent-dark: #55684c;
  --color-accent-light: #a9bb9f;
  --color-line: #e3e0d0;
  --color-concrete: #96a88e;

  --font-head: 'Space Grotesk', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;

  --radius: 6px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  line-height: 1.15;
  margin: 0 0 16px;
  color: var(--color-steel-dark);
}

h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -0.01em; }
h3 { font-size: 1.2rem; }

p { margin: 0 0 16px; color: var(--color-ink-soft); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.section {
  padding: 88px 0;
}
.section--tight { padding: 56px 0; }
.section--steel {
  background: var(--color-steel-dark);
  color: #fff;
}
.section--steel h1, .section--steel h2, .section--steel h3 { color: #fff; }
.section--steel p { color: #ced7c6; }
.section--steel .eyebrow, .hero .eyebrow { color: var(--color-accent-light); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }

.btn--accent {
  background: var(--color-accent);
  color: #fff;
}
.btn--accent:hover { background: var(--color-accent-dark); }

.btn--outline {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn--outline:hover { border-color: #fff; }

.btn--ghost {
  background: transparent;
  border-color: var(--color-steel);
  color: var(--color-steel);
}
.btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(253,249,238,0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 96px;
}
.logo {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--color-steel-dark);
}
.logo span { color: var(--color-accent); }
.logo img { height: 76px; width: auto; }
.site-footer .logo img { height: 110px; }
@media (max-width: 480px) {
  .logo img { height: 60px; }
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav a {
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-ink);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 860px) {
  .nav {
    position: absolute;
    top: 96px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px 24px 20px;
    border-bottom: 1px solid var(--color-line);
    display: none;
  }
  .nav.is-open { display: flex; }
  .nav a { width: 100%; padding: 10px 0; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--color-steel-dark) 0%, var(--color-steel) 100%);
  color: #fff;
  padding: 96px 0 80px;
}
.hero h1 { color: #fff; max-width: 780px; }
.hero p.lead {
  font-size: 1.15rem;
  color: #dbe3d4;
  max-width: 620px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.15);
  max-width: 780px;
}
.hero-stats .stat-num {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent-light);
}
.hero-stats .stat-label {
  font-size: 0.85rem;
  color: #c2ccba;
}

/* ---------- Cards ---------- */
.grid {
  display: grid;
  gap: 28px;
}
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) {
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.card:hover { box-shadow: 0 12px 30px rgba(28,33,38,0.08); transform: translateY(-2px); }
.card-media {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--color-line), var(--color-concrete));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-steel-dark);
  font-family: var(--font-head);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
  padding: 12px;
}
.card-body { padding: 22px; }
.card-body h3 { margin-bottom: 6px; }
.card-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.card-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  margin-top: 10px;
  border-top: 1px solid var(--color-line);
  padding-top: 12px;
}

/* Service cards */
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 32px;
}
.service-card .num {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--color-line);
  font-size: 2.4rem;
  -webkit-text-stroke: 1px var(--color-concrete);
  color: transparent;
  margin-bottom: 8px;
}
.service-card ul {
  margin: 16px 0 0;
  padding-left: 18px;
  color: var(--color-ink-soft);
}
.service-card li { margin-bottom: 6px; }

/* Turnkey callout — "tudo em um só lugar" */
.callout-turnkey {
  background: var(--color-accent-dark);
  color: #fff;
  border-radius: var(--radius);
  padding: 40px 36px;
}
.callout-turnkey .eyebrow { color: var(--color-accent-light); }
.callout-turnkey h2 { color: #fff; margin-bottom: 14px; }
.callout-turnkey p { color: #dbe3d4; margin-bottom: 0; }
.callout-turnkey ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 20px;
}
.callout-turnkey li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.callout-turnkey li::before {
  content: "✓";
  color: var(--color-accent-light);
  font-weight: 700;
}
@media (max-width: 600px) {
  .callout-turnkey ul { grid-template-columns: 1fr; }
}

/* Testimonials */
.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px;
}
.testimonial p.quote {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--color-steel-dark);
}
.testimonial .who {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  font-weight: 600;
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-steel-dark);
}
.field input,
.field select,
.field textarea {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: #fff;
  color: var(--color-ink);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}
.required-hint {
  font-size: 0.8rem;
  color: var(--color-ink-soft);
  margin-top: -6px;
}

/* Contact info list */
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list li {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
}
.contact-list .ico {
  width: 22px; height: 22px; flex: none; color: var(--color-accent);
}

/* Footer */
.site-footer {
  background: var(--color-steel-dark);
  color: #ced7c6;
  padding: 56px 0 28px;
}
.site-footer h3 { color: #fff; font-size: 0.95rem; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid a { color: #ced7c6; }
.footer-grid a:hover { color: var(--color-accent); }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  font-size: 0.8rem;
  color: #9aa88f;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* Sticky WhatsApp button */
.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  background: #25d366;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
.whatsapp-float svg { width: 28px; height: 28px; fill: #fff; }

/* Utility */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.max-w { max-width: 620px; }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }