/* ==========================================================================
   AL Climatização - Main styles
   Mobile-first, BEM naming, CSS custom properties
   ========================================================================== */

/* --------------------------------------------------------------------------
   Variables (theming)
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #1f709d;
  --color-primary-dark: #00639d;
  --color-primary-light: #4a9bc4;
  --color-bg: #fff;
  --color-bg-light: #f8fafc;
  --color-bg-gray: #f1f5f9;
  --color-text: #1a1a2e;
  --color-text-muted: #5a5a6e;
  --color-border: #e2e8f0;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --radius: 6px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.1);
  --header-height: 72px;
  --max-width: 1200px;
  --max-width-wide: 1400px;
}

/* --------------------------------------------------------------------------
   Base & layout
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:focus-visible {
  outline: 3px solid var(--color-primary-dark);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Skip link (accessibility)
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-md);
  outline: 3px solid var(--color-primary-dark);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Container
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

.container--wide {
  max-width: var(--max-width-wide);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.btn:focus-visible {
  outline: 3px solid var(--color-primary-dark);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-primary-dark);
  color: #fff;
  border-color: var(--color-primary-dark);
  padding: var(--space-sm) var(--space-lg);
}

.btn--primary:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-primary-light);
}

.btn--secondary:hover {
  background: var(--color-bg-light);
  border-color: var(--color-primary);
}

.btn--whatsapp {
  background: #25d366;
  border-color: #25d366;
  color: #fff;
}

.btn--whatsapp:hover {
  background: #20bd5a;
  border-color: #20bd5a;
  color: #fff;
}

/* --------------------------------------------------------------------------
   Site header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-xl);
  min-height: var(--header-height);
}

.site-header__logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  color: #fff;
  font-weight: 700;
  line-height: 1.1;
}

.site-header__logo:hover,
.site-header__logo:focus {
  color: #fff;
  opacity: 0.95;
}

.site-header__logo-brand {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: block;
}

.site-header__logo-text {
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
}

/* Nav */
.site-nav__list {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .site-nav__list {
    display: flex;
    align-items: center;
  }
}

.site-nav__link {
  color: #fff;
  font-weight: 400;
  padding: var(--space-xs) 0;
}

.site-nav__link:hover,
.site-nav__link:focus {
  color: #fff;
  text-decoration: underline;
}

.site-nav__link--active {
  font-weight: 700;
  text-decoration: underline;
}

.site-nav__link--cta {
  padding: var(--space-xs) 0;
}

.site-nav__link--cta:hover {
  text-decoration: underline;
}

/* Mobile nav toggle */
.site-nav__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  color: #fff;
  cursor: pointer;
  border-radius: var(--radius);
}

.site-nav__toggle:hover,
.site-nav__toggle:focus-visible {
  background: rgba(255, 255, 255, 0.15);
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.site-nav__toggle::before {
  content: '';
  width: 24px;
  height: 2px;
  background: currentColor;
  box-shadow: 0 -7px 0 currentColor, 0 7px 0 currentColor;
}

@media (min-width: 768px) {
  .site-nav__toggle {
    display: none;
  }
}

/* Mobile menu open state (JS adds .is-open to .site-nav) */
.site-nav.is-open .site-nav__list {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-primary);
  padding: var(--space-lg);
  gap: var(--space-md);
  box-shadow: var(--shadow-lg);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 75vh;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    min-height: 85vh;
  }
}

@media (min-width: 1024px) {
  .hero {
    min-height: 90vh;
  }
}

.hero__container {
  position: relative;
  z-index: 2;
  flex: 0 0 100%;
  width: 100%;
  max-width: var(--max-width-wide);
  margin-left: auto;
  margin-right: auto;
}

/* Mobile: comfortable padding, content not cramped */
.hero .hero__container.container--wide {
  padding: var(--space-xl) var(--space-lg) var(--space-2xl);
}

@media (min-width: 768px) {
  .hero .hero__container.container--wide {
    padding-left: var(--space-xl);
    padding-right: var(--space-xl);
    padding-bottom: var(--space-3xl);
  }
}

@media (min-width: 1400px) {
  .hero .hero__container.container--wide {
    padding-left: calc((var(--max-width-wide) - var(--max-width)) / 2 + var(--space-xl));
    padding-right: calc((var(--max-width-wide) - var(--max-width)) / 2 + var(--space-xl));
    padding-bottom: var(--space-3xl);
    padding-top: 0;
  }
}

.hero__media {
  position: absolute;
  inset: 0;
  background-color: #0d3b5c;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.2) 0%,
    rgba(0, 0, 0, 0.5) 40%,
    rgba(0, 0, 0, 0.8) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  max-width: 36em;
  margin: 0;
  padding: 0;
  text-align: left;
}

/* Mobile: slightly tighter spacing, full-width text */
.hero__title {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.5rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
}

@media (min-width: 768px) {
  .hero__title {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    margin-bottom: var(--space-lg);
  }
}

.hero__lead {
  margin: 0 0 var(--space-lg);
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
  max-width: 100%;
}

@media (min-width: 768px) {
  .hero__lead {
    font-size: 1.05rem;
    margin-bottom: var(--space-xl);
    max-width: 32em;
  }
}

.hero__features {
  list-style: none;
  margin: 0 0 var(--space-xl);
  padding: 0;
  max-width: 22em;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.hero__feature {
  position: relative;
  padding-left: 1.5em;
  margin-bottom: var(--space-sm);
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.95);
  line-height: 1.5;
}

.hero__feature:last-child {
  margin-bottom: 0;
}

.hero__feature::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.5em;
  height: 0.5em;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

.hero__cta {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  margin-top: 0;
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: var(--radius);
}

@media (min-width: 768px) {
  .hero__cta {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
  }
}

/* --------------------------------------------------------------------------
   Sections (shared)
   -------------------------------------------------------------------------- */
.section {
  padding: var(--space-3xl) 0;
}

.section--light {
  background: var(--color-bg);
}

.section--gray {
  background: var(--color-bg-gray);
}

.section--blue {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3xl) 0;
}

.section__title {
  margin: 0 0 var(--space-xl);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
}

.section--blue .section__title {
  color: #fff;
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 40em;
  margin: 0 auto var(--space-xl);
}

/* --------------------------------------------------------------------------
   Service cards
   -------------------------------------------------------------------------- */
.service-card {
  display: grid;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin-bottom: var(--space-xl);
}

.service-card:last-child {
  margin-bottom: 0;
}

.service-card__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-card__title {
  margin: 0 0 var(--space-md);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
}

.service-card__desc {
  margin: 0 0 var(--space-lg);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.service-card__list {
  margin: 0 0 var(--space-lg);
  padding-left: 1.25rem;
  list-style: none;
}

.service-card__list li {
  position: relative;
  padding-left: 1.5em;
  margin-bottom: var(--space-sm);
}

.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.6em;
  height: 0.6em;
  background: var(--color-primary);
  border-radius: 50%;
}

.service-card__media {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-border);
}

.service-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 220px;
}

@media (min-width: 768px) {
  .service-card {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .service-card--reverse .service-card__content {
    order: 2;
  }

  .service-card--reverse .service-card__media {
    order: 1;
  }
}

/* --------------------------------------------------------------------------
   Logo spin (stripe of logos, right-to-left, fade edges)
   -------------------------------------------------------------------------- */
.logo-spin {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

/* Align logo strip horizontal bounds with galeria (same container width + padding) */
.logo-spin .container--wide {
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}
@media (min-width: 1400px) {
  .logo-spin .container--wide {
    padding-left: calc((var(--max-width-wide) - var(--max-width)) / 2 + var(--space-lg));
    padding-right: calc((var(--max-width-wide) - var(--max-width)) / 2 + var(--space-lg));
  }
}

.logo-spin__wrap {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  --logo-spin-height: 48px;
  --logo-spin-gap: var(--space-2xl);
  /* Fade in from right, fade out on left: horizontal gradient masks */
  mask-image: linear-gradient(
    to right,
    transparent 0,
    black 8%,
    black 92%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0,
    black 8%,
    black 92%,
    transparent 100%
  );
  mask-size: 100% 100%;
  -webkit-mask-size: 100% 100%;
  mask-repeat: no-repeat;
  -webkit-mask-repeat: no-repeat;
}

.logo-spin__track {
  display: flex;
  width: max-content;
  animation: logo-spin-scroll 45s linear infinite;
}

.logo-spin__track:hover {
  animation-play-state: paused;
}

@keyframes logo-spin-scroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .logo-spin__track {
    animation-duration: 90s;
  }
}

.logo-spin__set {
  display: flex;
  align-items: center;
  gap: var(--logo-spin-gap);
  flex-shrink: 0;
  padding-left: var(--logo-spin-gap);
  padding-right: var(--logo-spin-gap);
}

.logo-spin__set:first-child {
  padding-left: 0;
}

.logo-spin__set + .logo-spin__set {
  padding-left: 0;
}

.logo-spin__img {
  flex-shrink: 0;
  height: var(--logo-spin-height);
  width: auto;
  max-width: 140px;
  object-fit: contain;
  display: block;
  opacity: 0.9;
  transition: opacity 0.2s ease;
}

.logo-spin__img:hover {
  opacity: 1;
}

@media (min-width: 768px) {
  .logo-spin__wrap {
    --logo-spin-height: 56px;
  }
}

/* --------------------------------------------------------------------------
   Galeria / Carousel
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Mobile: standard padding. Wide: same inset as hero so carousel aligns with hero content */
.galeria .container--wide {
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}
@media (min-width: 1400px) {
  .galeria .container--wide {
    padding-left: calc((var(--max-width-wide) - var(--max-width)) / 2 + var(--space-lg));
    padding-right: calc((var(--max-width-wide) - var(--max-width)) / 2 + var(--space-lg));
  }
}

.carousel {
  position: relative;
  max-width: 100%;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-border);
  aspect-ratio: 16 / 10;
  max-height: 70vh;
}

.carousel__track-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  width: 100%;
  height: 100%;
}

.carousel__track {
  display: flex;
  height: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
  transition: transform 0.4s ease;
}

.carousel__slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  min-height: 0;
}

.carousel__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  vertical-align: middle;
}

/* Navigation arrows (chevrons) */
.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 48px;
  height: 48px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s;
}

.carousel__btn:hover,
.carousel__btn:focus {
  background: rgba(0, 0, 0, 0.75);
  color: #fff;
}

.carousel__btn:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

.carousel__btn--prev {
  left: var(--space-md);
}

.carousel__btn--next {
  right: var(--space-md);
}

.carousel__btn--prev::before {
  content: '<';
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 48px;
  text-align: center;
}

.carousel__btn--next::before {
  content: '>';
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 48px;
  text-align: center;
}

/* Dots */
.carousel__dots {
  position: absolute;
  bottom: var(--space-md);
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  z-index: 2;
  padding: var(--space-sm);
  background: rgba(0, 0, 0, 0.35);
}

.carousel__dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 2px solid #fff;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background 0.2s;
}

.carousel__dot:hover,
.carousel__dot:focus {
  background: rgba(255, 255, 255, 0.5);
}

.carousel__dot:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.carousel__dot[aria-selected="true"] {
  background: #fff;
}

/* --------------------------------------------------------------------------
   Como Funciona (steps)
   -------------------------------------------------------------------------- */
.steps {
  display: grid;
  gap: var(--space-xl);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.steps__item {
  text-align: center;
}

.steps__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-md);
  background: var(--color-border);
}

.steps__media img {
  width: 100%;
  height: auto;
  min-height: 200px;
  object-fit: cover;
}

.steps__label {
  margin: 0;
  font-weight: 500;
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   CTA Banner
   -------------------------------------------------------------------------- */
.cta-banner {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3xl) 0;
  text-align: center;
}

.cta-banner__eyebrow {
  margin: 0 0 var(--space-sm);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.9);
}

.cta-banner__title {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: #fff;
}

.cta-banner__text {
  margin: 0 0 var(--space-xl);
  color: rgba(255, 255, 255, 0.95);
}

.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

/* --------------------------------------------------------------------------
   Contato
   -------------------------------------------------------------------------- */
.contato__grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .contato__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contato__info p {
  margin: 0 0 var(--space-md);
}

.contato__info .btn {
  margin-top: var(--space-sm);
}

.contato__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contato__label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.contato__input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.contato__input:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 0;
}

.contato__textarea {
  min-height: 120px;
  resize: vertical;
}

.contato__phones,
.contato__address {
  margin: 0 0 var(--space-md);
}

.contato__phones a,
.contato__address a {
  color: var(--color-primary);
}

.contato__map {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg-gray);
  padding: var(--space-xl);
}

.contato__map-address {
  margin: 0 0 var(--space-sm);
  color: var(--color-text-muted);
}

.contato__map-link {
  margin: 0;
}

.contato__info .contato__map-link {
  margin-bottom: var(--space-md);
}

.contato__map-link a {
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-2xl) 0;
  text-align: center;
}

.site-footer__brand {
  margin-bottom: var(--space-md);
}

.site-footer__logo-brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.site-footer__logo-text {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.site-footer__cnpj {
  margin: 0 0 var(--space-sm);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
}

.site-footer__contact {
  margin: 0 0 var(--space-lg);
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.95);
}

.site-footer__contact a {
  color: #fff;
  text-decoration: underline;
}

.site-footer__contact a:hover,
.site-footer__contact a:focus {
  color: #fff;
  opacity: 0.9;
}

.site-footer__social {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.site-footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
}

.site-footer__social-link:hover,
.site-footer__social-link:focus {
  background: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.site-footer__social-link:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.site-footer__social-link--whatsapp {
  background: #25d366;
  color: #fff;
  padding: var(--space-sm) var(--space-lg);
}

.site-footer__social-link--whatsapp:hover {
  background: #20bd5a;
  color: #fff;
}