/* ==========================================================================
   ELÉTRICA SABIÁ - RESPONSIVE STYLESHEET (MOBILE-FIRST)
   ========================================================================== */

/* --- Base: Mobile First (up to 480px) --- */
.container {
  padding: 0 18px;
}

.section {
  padding: 60px 0;
}

.header {
  height: 80px;
}

.header.scrolled {
  height: 70px;
}

.logo-img,
.header.scrolled .logo-img {
  width: min(190px, calc(100vw - 86px));
  max-width: calc(100vw - 86px);
}

.menu-toggle {
  display: block;
}

.nav {
  position: fixed;
  top: 0;
  right: 0;
  width: min(85vw, 320px);
  height: 100vh;
  background-color: var(--color-white);
  box-shadow: -10px 0 30px rgba(13, 27, 42, 0.25);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 100px 24px 40px 24px;
  gap: 28px;
  transform: translateX(calc(100% + 24px));
  transition: transform var(--transition-slow);
  z-index: 1050;
  overflow-x: hidden;
  overflow-y: auto;
}

.nav.active {
  transform: translateX(0);
}

.nav-list {
  flex-direction: column;
  width: 100%;
  gap: 14px;
}

.nav-link {
  font-size: 1.05rem;
  display: block;
  width: 100%;
  padding: 10px 0;
}

.nav .btn {
  width: 100%;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.hero {
  min-height: auto;
  min-height: 100svh;
  padding-top: 122px;
  padding-bottom: 60px;
}

.hero h1 {
  font-size: 1.95rem;
}

.hero-badge {
  font-size: 0.75rem;
  padding: 6px 14px;
}

.hero-actions {
  flex-direction: column;
  gap: 12px;
}

.hero-actions .btn {
  width: 100%;
}

.hero-trust-bar {
  grid-template-columns: 1fr;
  gap: 16px;
}

.about-grid {
  grid-template-columns: 1fr;
  gap: 40px;
}

.about-image {
  height: 360px;
}

.about-floating-card {
  bottom: 14px;
  left: 0;
  right: 0;
  padding: 16px 18px;
}

.stats-grid {
  grid-template-columns: 1fr;
  gap: 16px;
}

.services-grid {
  grid-template-columns: 1fr;
  gap: 20px;
}

.facilities-intro-card {
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 24px 16px;
}

.facilities-intro-text h3 {
  font-size: 1.35rem;
}

.facilities-grid {
  grid-template-columns: 1fr;
  gap: 20px;
}

.munck-grid {
  grid-template-columns: 1fr;
  gap: 36px;
}

.munck-features {
  grid-template-columns: 1fr;
  gap: 14px;
}

.munck-secondary-images {
  grid-template-columns: 1fr;
}

.munck-main-img {
  height: 250px;
}

.munck-thumb-img {
  height: 140px;
}

.safety-grid {
  grid-template-columns: 1fr;
  gap: 36px;
}

.clients-grid {
  grid-template-columns: 1fr;
  gap: 16px;
}

.client-card {
  height: 120px;
  padding: 20px 16px;
}

.client-logo {
  max-width: 130px;
  max-height: 45px;
}

.cta-container {
  flex-direction: column;
  text-align: center;
  gap: 24px;
}

.cta-buttons {
  flex-direction: column;
  width: 100%;
}

.cta-buttons .btn {
  width: 100%;
}

.contact-grid {
  grid-template-columns: 1fr;
  gap: 42px;
}

.contact-intro {
  font-size: 1rem;
}

.contact-card-item {
  padding: 18px;
}

.contact-card-content {
  min-width: 0;
}

.contact-card-content a,
.contact-card-content p {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.social-bar {
  flex-wrap: wrap;
}

.form-card {
  padding: 28px 16px;
}

.form-card h3 {
  font-size: 2rem;
}

.contact-form {
  grid-template-columns: 1fr;
}

.form-group.full-width,
.form-submit-wrapper,
.form-chips-wrapper {
  grid-column: span 1;
}

.form-submit-wrapper .btn-whatsapp {
  width: 100%;
  white-space: normal;
  line-height: 1.35;
  padding: 14px 12px;
}

.faq-question {
  padding: 18px 18px;
  font-size: 0.95rem;
}

.faq-answer {
  padding: 0 18px;
}

.faq-answer.open {
  padding: 16px 18px;
}

.service-filter-wrapper {
  overflow-x: auto;
}

.service-filter-tabs {
  width: 100%;
  justify-content: flex-start;
  border-radius: 20px;
  padding: 6px;
  gap: 6px;
}

.filter-tab {
  font-size: 0.775rem;
  padding: 6px 12px;
}

.chip-btn {
  font-size: 0.725rem;
  padding: 5px 10px;
}

.footer {
  padding-top: 64px;
}

.footer-grid {
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 44px;
}

.footer-bottom p {
  line-height: 1.6;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.whatsapp-float {
  bottom: calc(20px + env(safe-area-inset-bottom));
  right: calc(20px + env(safe-area-inset-right));
  width: 52px;
  height: 52px;
  font-size: 28px;
}

.back-to-top {
  bottom: calc(20px + env(safe-area-inset-bottom));
  left: calc(16px + env(safe-area-inset-left));
  width: 42px;
  height: 42px;
  font-size: 15px;
}

/* --- Very small phones --- */
@media (max-width: 375px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-badge {
    letter-spacing: 0.8px;
  }

  .filter-tab {
    padding: 6px 10px;
  }

  .faq-question {
    font-size: 0.875rem;
  }
}

/* --- Small tablets / large phones --- */
@media (min-width: 481px) {
  .container {
    padding: 0 20px;
  }

  .section {
    padding: 72px 0;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .clients-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .munck-secondary-images {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* --- Tablets and up --- */
@media (min-width: 769px) {
  .container {
    padding: 0 24px;
  }

  .section {
    padding: 80px 0;
  }

  .menu-toggle {
    display: none;
  }

  .header {
    height: 90px;
  }

  .header.scrolled {
    height: 76px;
  }

  .nav {
    position: static;
    width: auto;
    height: auto;
    background-color: transparent;
    box-shadow: none;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding: 0;
    gap: 28px;
    transform: none;
    overflow: visible;
    z-index: auto;
  }

  .nav-list {
    flex-direction: row;
    width: auto;
    gap: 20px;
  }

  .nav-link {
    font-size: 0.875rem;
    width: auto;
    padding: 8px 0;
  }

  .nav .btn {
    width: auto;
  }

  .hero {
    min-height: 100vh;
    min-height: 100svh;
    min-height: 100dvh;
    padding-top: 130px;
    padding-bottom: 72px;
  }

  .hero-actions {
    flex-direction: row;
  }

  .hero-actions .btn {
    width: auto;
  }

  .hero-trust-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .facilities-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

  .munck-features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cta-buttons {
    flex-direction: row;
    width: auto;
  }

  .cta-buttons .btn {
    width: auto;
  }

  .form-card {
    padding: 30px 20px;
  }

  .faq-question {
    padding: 18px 20px;
  }

  .faq-answer {
    padding: 0 20px;
  }

  .faq-answer.open {
    padding: 16px 20px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
  }

  .back-to-top {
    bottom: calc(20px + env(safe-area-inset-bottom));
    left: calc(20px + env(safe-area-inset-left));
    width: 44px;
    height: 44px;
    font-size: 16px;
  }
}

/* --- Large tablets and small desktops --- */
@media (min-width: 901px) {
  .facilities-intro-card {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 28px;
    padding: 36px 30px;
  }
}

/* --- Laptops --- */
@media (min-width: 1025px) {
  .about-grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 60px;
  }

  .about-image {
    height: 490px;
  }

  .safety-grid {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
  }

  .cta-container {
    flex-direction: row;
    text-align: left;
    justify-content: space-between;
    gap: 40px;
  }

  .contact-grid {
    grid-template-columns: 1fr 1.25fr;
    gap: 60px;
  }

  .contact-form {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .form-group.full-width,
  .form-submit-wrapper,
  .form-chips-wrapper {
    grid-column: span 2;
  }

  .form-submit-wrapper .btn-whatsapp {
    white-space: nowrap;
    padding: 16px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* --- Desktop --- */
@media (min-width: 1201px) {
  .section {
    padding: 100px 0;
  }

  .facilities-intro-card {
    grid-template-columns: 1.3fr 0.7fr;
    gap: 40px;
    padding: 48px 44px;
  }

  .munck-grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
  }

  .form-card {
    padding: 44px 36px;
  }

  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1.2fr 1.2fr;
  }

  .whatsapp-float {
    bottom: calc(28px + env(safe-area-inset-bottom));
    right: calc(28px + env(safe-area-inset-right));
    width: 60px;
    height: 60px;
    font-size: 32px;
  }

  .back-to-top {
    bottom: calc(28px + env(safe-area-inset-bottom));
    left: calc(28px + env(safe-area-inset-left));
    width: 48px;
    height: 48px;
    font-size: 18px;
  }
}