/* ===== Mec Aço Engenharia — stylesheet ===== */

:root {
  --orange: #F2811F;
  --orange-dark: #D66A0F;
  --slate: #5B6672;
  --slate-dark: #3C4550;
  --slate-darker: #2B323A;
  --bg: #F6F5F3;
  --white: #FFFFFF;
  --text: #2A2E33;
  --muted: #6B7178;
  --border: #E3E1DD;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(43, 50, 58, 0.08);
  --shadow-sm: 0 4px 14px rgba(43, 50, 58, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--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: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: 'Poppins', 'Inter', sans-serif;
  font-weight: 700;
  color: var(--slate-darker);
  line-height: 1.2;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--orange-dark);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin-bottom: 12px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--orange);
  display: inline-block;
}

.section { padding: 76px 0; }
.section-alt { background: var(--white); }
.section-dark {
  background: var(--slate-darker);
  color: #E7E9EB;
}
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: #C4C9CD; }

.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn-primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 8px 20px rgba(242, 129, 31, 0.35);
}
.btn-primary:hover { background: var(--orange-dark); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,0.12); }
.btn-outline-dark {
  background: transparent;
  border-color: var(--slate);
  color: var(--slate-darker);
}
.btn-outline-dark:hover { background: var(--slate-darker); color: #fff; border-color: var(--slate-darker); }
.btn-whatsapp {
  background: #25D366;
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.35);
}
.btn-whatsapp:hover { background: #1DA851; transform: translateY(-2px); }
.btn-whatsapp svg { width: 20px; height: 20px; flex: none; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.brand img { height: 44px; width: auto; }

nav.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
nav.main-nav a {
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.94rem;
  color: var(--slate-dark);
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}
nav.main-nav a:hover { background: rgba(242,129,31,0.1); color: var(--orange-dark); }
nav.main-nav a.active { background: var(--slate-darker); color: #fff; }
nav.main-nav a.nav-cta {
  background: var(--orange);
  color: #fff;
  margin-left: 8px;
}
nav.main-nav a.nav-cta:hover { background: var(--orange-dark); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 26px; height: 2.5px; background: var(--slate-darker); border-radius: 2px; }

/* ---- Hero ---- */
.hero {
  position: relative;
  color: #fff;
  display: flex;
  align-items: center;
  min-height: 620px;
  background-size: cover;
  background-position: center;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(31,36,42,0.92) 0%, rgba(43,50,58,0.72) 45%, rgba(43,50,58,0.45) 100%);
  z-index: -1;
}
.hero .container { padding-top: 60px; padding-bottom: 60px; }
.hero-content { max-width: 640px; }
.hero h1 { color: #fff; margin-bottom: 18px; }
.hero p.lead { font-size: 1.15rem; color: #E4E6E8; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

.page-hero {
  min-height: 320px;
}
.page-hero .eyebrow { color: var(--orange); }

/* ---- Stats strip ---- */
.stats-strip {
  background: var(--slate-darker);
  color: #fff;
}
.stats-strip .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 40px;
  padding-bottom: 40px;
}
.stat { text-align: center; }
.stat .num {
  font-family: 'Poppins', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--orange);
}
.stat .label { font-size: 0.88rem; color: #C4C9CD; }

/* ---- Grid helpers ---- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ---- Cards ---- */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card .icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: rgba(242,129,31,0.12);
  display: flex; align-items: center; justify-content: center;
  color: var(--orange);
  font-size: 1.4rem;
  margin-bottom: 18px;
}

.mvv-row {
  display: flex;
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}
.mvv-row .tag {
  flex: none;
  width: 150px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--orange-dark);
  text-transform: uppercase;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}
.mvv-row ul { margin: 0; padding-left: 18px; }
.mvv-row p { margin: 0; }

/* ---- Services list ---- */
.service-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.service-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
}
.service-list li .dot {
  flex: none;
  width: 10px; height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--orange);
}

.reason-row {
  display: flex;
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
}
.reason-row:last-child { border-bottom: none; }
.reason-row .num {
  flex: none;
  font-family: 'Poppins', sans-serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--orange);
  width: 60px;
}

/* ---- Team ---- */
.team-card { text-align: center; }
.team-card img {
  width: 100%;
  max-width: 240px;
  aspect-ratio: 4 / 5;
  border-radius: 18px;
  object-fit: cover;
  margin: 0 auto 18px;
  border: 4px solid var(--white);
  box-shadow: var(--shadow-sm);
}
.team-card h3 { margin-bottom: 2px; }
.team-card .role { color: var(--orange-dark); font-weight: 600; font-size: 0.92rem; margin-bottom: 10px; }
.team-card .meta { font-size: 0.85rem; color: var(--muted); }
.team-card .meta a { color: var(--slate-dark); }

/* ---- Portfolio ---- */
.project-block {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
  box-shadow: var(--shadow-sm);
}
.project-block .project-images {
  display: grid;
  gap: 3px;
}
.project-block .project-images.imgs-1 { grid-template-columns: 1fr; }
.project-block .project-images.imgs-2 { grid-template-columns: 1fr 1fr; }
.project-block .project-images.imgs-3 { grid-template-columns: 1.3fr 1fr 1fr; }
.project-block .project-images img { width: 100%; height: 320px; object-fit: cover; }
.project-block .project-images.imgs-3 img:nth-child(1) { height: 320px; }
.project-block .project-body { padding: 28px 30px; }
.project-block .project-body h3 { margin-bottom: 10px; }
.project-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--orange-dark);
  background: rgba(242,129,31,0.1);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

/* ---- Contact ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-item .icon {
  flex: none;
  width: 46px; height: 46px;
  border-radius: 10px;
  background: rgba(242,129,31,0.12);
  color: var(--orange);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.contact-item h4 { margin: 0 0 4px; font-size: 1rem; }
.contact-item p { margin: 0; color: var(--muted); }

form.contact-form { display: flex; flex-direction: column; gap: 16px; }
form.contact-form label { font-weight: 600; font-size: 0.88rem; margin-bottom: 6px; display: block; }
form.contact-form input, form.contact-form select, form.contact-form textarea {
  width: 100%;
  padding: 13px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--white);
}
form.contact-form textarea { resize: vertical; min-height: 120px; }
form.contact-form input:focus, form.contact-form select:focus, form.contact-form textarea:focus {
  outline: none;
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(242,129,31,0.15);
}

/* ---- CTA banner ---- */
.cta-banner {
  background: linear-gradient(120deg, var(--orange) 0%, var(--orange-dark) 100%);
  color: #fff;
  border-radius: 16px;
  padding: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-banner h2 { color: #fff; margin-bottom: 6px; }
.cta-banner p { color: rgba(255,255,255,0.9); margin: 0; }
.cta-banner .btn-primary { background: #fff; color: var(--orange-dark); box-shadow: none; }
.cta-banner .btn-primary:hover { background: var(--slate-darker); color: #fff; }

/* ---- Footer ---- */
footer.site-footer {
  background: var(--slate-darker);
  color: #C4C9CD;
  padding: 56px 0 24px;
}
footer.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
footer.site-footer img.brand-logo { height: 76px; width: auto; margin-bottom: 18px; }
footer.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; }
footer.site-footer ul { list-style: none; margin: 0; padding: 0; }
footer.site-footer li { margin-bottom: 10px; font-size: 0.92rem; }
footer.site-footer a:hover { color: var(--orange); }
footer.site-footer .bottom {
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: #8B9198;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; gap: 30px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .stats-strip .container { grid-template-columns: 1fr 1fr; }
  .service-list { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  footer.site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
  .mvv-row { flex-direction: column; }
  .mvv-row .tag { width: auto; }
}

@media (max-width: 720px) {
  nav.main-nav {
    position: fixed;
    top: 84px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-140%);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  nav.main-nav.open { transform: translateY(0); opacity: 1; }
  nav.main-nav a { padding: 14px 10px; }
  nav.main-nav a.nav-cta { margin-left: 0; text-align: center; }
  .nav-toggle { display: flex; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .stats-strip .container { grid-template-columns: 1fr 1fr; gap: 28px; }
  .project-block .project-images.imgs-3 { grid-template-columns: 1fr; }
  .project-block .project-images.imgs-2 { grid-template-columns: 1fr; }
  .project-block .project-images img { height: 220px; }
  .cta-banner { padding: 36px 26px; }
  footer.site-footer .footer-grid { grid-template-columns: 1fr; }
}