/* =========================================
   RC Teixeira Soluções - Landing Page
   Cores: Azul (energia/confiança) + Laranja/Amarelo (eletricidade)
========================================= */

:root {
  --color-blue-900: #0a1f3d;
  --color-blue-800: #0f2d54;
  --color-blue-700: #14396b;
  --color-blue-600: #1c4c8c;
  --color-blue-500: #2563b3;
  --color-orange-500: #f5820a;
  --color-orange-600: #e06d00;
  --color-yellow-400: #ffc107;
  --color-gray-900: #16202b;
  --color-gray-700: #45505c;
  --color-gray-500: #6b7480;
  --color-gray-200: #e6e9ee;
  --color-gray-100: #f4f6f9;
  --color-white: #ffffff;

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

  --radius-md: 10px;
  --radius-lg: 18px;
  --shadow-sm: 0 2px 10px rgba(10, 31, 61, 0.06);
  --shadow-md: 0 10px 30px rgba(10, 31, 61, 0.10);
  --shadow-lg: 0 20px 50px rgba(10, 31, 61, 0.16);
  --transition: all 0.25s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-gray-900);
  line-height: 1.6;
  background: var(--color-white);
  overflow-x: hidden;
}

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

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

ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; }

/* Botões */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-orange-500), var(--color-yellow-400));
  color: var(--color-blue-900);
  box-shadow: var(--shadow-md);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn--outline {
  background: transparent;
  border-color: rgba(255,255,255,0.7);
  color: var(--color-white);
}
.btn--outline:hover { background: rgba(255,255,255,0.12); }

.btn--whatsapp, .btn--whatsapp-nav {
  background: #25d366;
  color: var(--color-white);
}
.btn--whatsapp:hover, .btn--whatsapp-nav:hover { background: #1ebe57; transform: translateY(-2px); }

.btn--whatsapp-nav { padding: 10px 18px; font-size: 14px; }

.btn--full { width: 100%; }

.btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none !important; }

/* HEADER */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 31, 61, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--color-white);
}

.logo__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-orange-500), var(--color-yellow-400));
  color: var(--color-blue-900);
  font-size: 18px;
}

.logo__text strong { color: var(--color-orange-500); }

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__link {
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
}
.nav__link:hover { color: var(--color-orange-500); }

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

/* HERO */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: url('../images/hero-bg.jpg') center/cover no-repeat;
  padding-top: 72px;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,31,61,0.92) 0%, rgba(15,45,84,0.85) 50%, rgba(10,31,61,0.75) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero__eyebrow {
  color: var(--color-orange-500);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 14px;
  margin-bottom: 16px;
}

.hero__title {
  color: var(--color-white);
  font-size: clamp(36px, 6vw, 58px);
  margin-bottom: 20px;
}

.hero__subtitle {
  color: rgba(255,255,255,0.85);
  font-size: clamp(16px, 2.2vw, 19px);
  max-width: 600px;
  margin-bottom: 36px;
}

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

/* Sections generic */
.section { padding: 100px 0; }

.section__eyebrow {
  color: var(--color-orange-600);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 13px;
  text-align: center;
  margin-bottom: 12px;
}
.section__eyebrow--light { color: var(--color-yellow-400); }

.section__title {
  text-align: center;
  font-size: clamp(28px, 4vw, 38px);
  color: var(--color-blue-900);
  margin-bottom: 16px;
}
.section__title--light { color: var(--color-white); }

.section__subtitle {
  text-align: center;
  color: var(--color-gray-500);
  max-width: 640px;
  margin: 0 auto 56px;
  font-size: 17px;
}

/* SERVICES */
.services { background: var(--color-gray-100); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 0 0 32px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-gray-200);
}

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

.service-card__icon {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  margin-bottom: 22px;
  background: var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-card__icon img { width: 100%; height: 100%; object-fit: cover; display: block; }

.service-card__title {
  font-size: 19px;
  color: var(--color-blue-900);
  margin-bottom: 12px;
  padding: 0 28px;
}

.service-card__text {
  color: var(--color-gray-700);
  font-size: 15px;
  padding: 0 28px;
}

/* WHY */
.why__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.why-card {
  text-align: center;
  padding: 36px 24px;
}

.why-card__check {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-orange-500), var(--color-yellow-400));
  color: var(--color-blue-900);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 20px;
  box-shadow: var(--shadow-md);
}

.why-card__title {
  font-size: 19px;
  color: var(--color-blue-900);
  margin-bottom: 10px;
}

.why-card__text {
  color: var(--color-gray-700);
  font-size: 15px;
}

/* COMPLIANCE */
.compliance {
  background: linear-gradient(135deg, var(--color-blue-900), var(--color-blue-700));
  position: relative;
}

.compliance__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 28px;
  max-width: 720px;
  margin: 0 auto;
}

.compliance-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
}

.compliance-card__icon {
  font-size: 34px;
  color: var(--color-yellow-400);
  margin-bottom: 16px;
}

.compliance-card__title {
  color: var(--color-white);
  font-size: 21px;
  margin-bottom: 10px;
}

.compliance-card__text {
  color: rgba(255,255,255,0.8);
  font-size: 15px;
}

/* QUOTE FORM */
.quote { background: var(--color-gray-100); }

.quote__box {
  max-width: 820px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
}

.quote-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group--full { grid-column: 1 / -1; }

.form-group label {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-blue-900);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 13px 16px;
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-gray-900);
  transition: var(--transition);
  background: var(--color-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-orange-500);
  box-shadow: 0 0 0 3px rgba(245, 130, 10, 0.15);
}

.form-group input.is-invalid,
.form-group select.is-invalid,
.form-group textarea.is-invalid {
  border-color: #e02424;
}

.form-error {
  font-size: 13px;
  color: #e02424;
  min-height: 16px;
}

.form-feedback {
  grid-column: 1 / -1;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  display: none;
}
.form-feedback.show { display: block; }
.form-feedback.success { background: #e6f7ec; color: #157347; border: 1px solid #b6e6c8; }
.form-feedback.error { background: #fdeaea; color: #b02a2a; border: 1px solid #f5c2c2; }

/* CONTACT */
.contact__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.contact-person {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 28px 0;
}

.contact-person__avatar {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-blue-600), var(--color-blue-900));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.contact-person__name {
  font-weight: 700;
  font-size: 18px;
  color: var(--color-blue-900);
}

.contact-person__role {
  color: var(--color-gray-500);
  font-size: 14px;
}

.contact-about {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--color-gray-200);
}

.contact-about h3 {
  font-size: 18px;
  color: var(--color-blue-900);
  margin-bottom: 10px;
}

.contact-about p {
  color: var(--color-gray-700);
  font-size: 15px;
}

.contact__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* FOOTER */
.footer {
  background: var(--color-blue-900);
  padding: 36px 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

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

.footer__copy {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
}

/* WHATSAPP FLOAT */
.whatsapp-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: var(--shadow-lg);
  z-index: 90;
  transition: var(--transition);
}
.whatsapp-float:hover { transform: scale(1.08); }

/* =========================================
   RESPONSIVE
========================================= */
@media (max-width: 900px) {
  .contact__grid { grid-template-columns: 1fr; }
  .contact__image { order: -1; }
}

@media (max-width: 768px) {
  .section { padding: 70px 0; }

  .nav {
    position: fixed;
    top: 72px;
    left: 0; right: 0;
    background: var(--color-blue-900);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 28px;
    gap: 18px;
    transform: translateY(-140%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav__link { padding: 6px 0; }
  .btn--whatsapp-nav { align-self: flex-start; }

  .nav-toggle { display: flex; }

  .hero { min-height: auto; padding: 130px 0 70px; }

  .quote-form { grid-template-columns: 1fr; }
  .quote__box { padding: 28px; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { width: 100%; }
  .whatsapp-float { width: 52px; height: 52px; font-size: 24px; bottom: 18px; right: 18px; }
}