/* ==========================================================================
   OP-RAR Engenharia — Estilos
   ========================================================================== */

:root {
  --navy-950: #0a1830;
  --navy-900: #0f2340;
  --navy-800: #16304f;
  --navy-700: #1e3c5f;
  --gold: #e0a63c;
  --gold-light: #f2c169;
  --white: #ffffff;
  --gray-100: #f5f7fa;
  --gray-200: #e8ecf1;
  --gray-500: #8a95a5;
  --gray-700: #4a5568;
  --whatsapp: #25d366;
  --whatsapp-dark: #1ebe57;
  --danger: #e5484d;

  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius: 12px;
  --shadow: 0 10px 30px rgba(10, 24, 48, 0.12);
  --shadow-lg: 0 20px 50px rgba(10, 24, 48, 0.18);
  --container: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--navy-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--navy-900);
  line-height: 1.2;
  margin: 0 0 16px;
}

p { margin: 0 0 16px; color: var(--gray-700); }

a { text-decoration: none; color: inherit; }

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

ul { padding: 0; margin: 0; list-style: none; }

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

.accent { color: var(--gold); }

.eyebrow {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--gold);
  margin-bottom: 12px;
}

.section {
  padding: 90px 0;
}

.section--alt {
  background: var(--gray-100);
}

.section__title {
  max-width: 640px;
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  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;
  white-space: nowrap;
}

.btn .icon { width: 20px; height: 20px; fill: currentColor; flex-shrink: 0; }

.btn--whatsapp {
  background: var(--whatsapp);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.35);
}
.btn--whatsapp:hover { background: var(--whatsapp-dark); transform: translateY(-2px); }

.btn--outline {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}
.btn--outline:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }

.btn--primary {
  background: var(--gold);
  color: var(--navy-950);
}
.btn--primary:hover { background: var(--gold-light); transform: translateY(-2px); }

.btn--lg { padding: 16px 32px; font-size: 1rem; }
.btn--full { width: 100%; }
.btn--nav { padding: 10px 20px; font-size: 0.88rem; }

/* ---------- Header ---------- */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 24, 48, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img { width: 40px; height: 40px; border-radius: 8px; }

.logo__text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--white);
  letter-spacing: 0.02em;
}

.logo__text small {
  display: block;
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--gray-500);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  color: var(--gray-200);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.15s ease;
}
.nav__link:hover { color: var(--gold); }

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: 130px 0 90px;
  overflow: hidden;
  color: var(--white);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(224, 166, 60, 0.18), transparent 45%),
    linear-gradient(135deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--navy-800) 100%);
  z-index: -1;
}

.hero__inner { max-width: 780px; }

.tag {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(224, 166, 60, 0.15);
  color: var(--gold-light);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 22px;
  border: 1px solid rgba(224, 166, 60, 0.3);
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.1rem, 4.5vw, 3.2rem);
  font-weight: 700;
  margin-bottom: 20px;
}

.hero__subtitle {
  color: var(--gray-200);
  font-size: 1.1rem;
  max-width: 620px;
  margin-bottom: 34px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 60px;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 30px;
}

.stat strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--gold);
}

.stat span {
  font-size: 0.88rem;
  color: var(--gray-500);
}

/* ---------- Sobre ---------- */

.about {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: center;
}

.about__text p { color: var(--gray-700); }

.about__text .highlight {
  font-weight: 600;
  color: var(--navy-900);
  border-left: 4px solid var(--gold);
  padding-left: 16px;
}

.about__visual {
  display: flex;
  justify-content: center;
}

.about__logo {
  width: 100%;
  max-width: 320px;
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
}

/* ---------- Serviços ---------- */

.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  margin-top: 44px;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border: 1px solid var(--gray-200);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card__icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.card p { font-size: 0.94rem; margin-bottom: 16px; }

.card ul { display: flex; flex-direction: column; gap: 8px; }

.card ul li {
  font-size: 0.87rem;
  color: var(--gray-700);
  padding-left: 20px;
  position: relative;
}

.card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--gold);
}

/* ---------- CTA banner ---------- */

.cta {
  background: linear-gradient(120deg, var(--navy-900), var(--navy-700));
  color: var(--white);
  padding: 60px 0;
}

.cta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.cta h2 { color: var(--white); margin-bottom: 8px; font-size: 1.5rem; }
.cta p { color: var(--gray-200); margin: 0; }

/* ---------- Contato ---------- */

.contact {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: start;
}

.contact__info p { max-width: 420px; }

.contact__list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact__list strong { color: var(--navy-900); }
.contact__list li { color: var(--gray-700); font-size: 0.95rem; }

.form {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px;
}

.form h3 { margin-bottom: 22px; }

.form__field {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form__field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy-900);
}

.form__field input,
.form__field textarea {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--navy-900);
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form__field input:focus,
.form__field textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(224, 166, 60, 0.2);
}

.form__field.is-invalid input,
.form__field.is-invalid textarea {
  border-color: var(--danger);
}

.form__hint {
  font-size: 0.78rem;
  color: var(--gray-500);
  margin: 6px 0 0;
}

.form__hint code {
  background: var(--gray-200);
  padding: 2px 6px;
  border-radius: 4px;
}

.form__error {
  display: none;
  color: var(--danger);
  font-size: 0.88rem;
  font-weight: 600;
  margin: -6px 0 16px;
}

.form__error.is-visible { display: block; }

/* Honeypot: escondido dos humanos, visível para bots que preenchem tudo */
.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Footer ---------- */

.footer {
  background: var(--navy-950);
  color: var(--gray-200);
  padding-top: 70px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 50px;
}

.logo--footer .logo__text { color: var(--white); }

.footer__col p { color: var(--gray-500); font-size: 0.92rem; margin-top: 16px; }

.footer__col h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.footer__col ul { display: flex; flex-direction: column; gap: 10px; }

.footer__col ul li,
.footer__col ul li a {
  color: var(--gray-500);
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

.footer__col ul li a:hover { color: var(--gold); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
}

.footer__bottom p {
  color: var(--gray-500);
  font-size: 0.85rem;
  text-align: center;
  margin: 0;
}

/* ---------- WhatsApp flutuante ---------- */

.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.45);
  z-index: 90;
  transition: transform 0.2s ease;
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float .icon { width: 30px; height: 30px; fill: var(--white); }

/* ---------- Responsivo ---------- */

@media (max-width: 900px) {
  .about,
  .contact {
    grid-template-columns: 1fr;
  }
  .about__visual { order: -1; }
  .footer__inner { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 780px) {
  .nav {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--navy-950);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 30px;
    gap: 18px;
    transform: translateY(-140%);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav__link { width: 100%; }
  .nav .btn--nav { width: 100%; }
  .nav__toggle { display: flex; }

  .nav__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav__toggle.is-open span:nth-child(2) { opacity: 0; }
  .nav__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero { padding: 110px 0 70px; }
  .section { padding: 64px 0; }
  .cta__inner { flex-direction: column; align-items: flex-start; }
  .cta .btn { width: 100%; }
}

@media (max-width: 480px) {
  .logo__text { font-size: 1rem; }
  .hero__stats { gap: 24px; }
  .form { padding: 24px 20px; }
}