/* =============================================
   A2 Lab - Styles
   Premium tech lab aesthetic
   ============================================= */

/* --------------------------------------------- 
   CSS Custom Properties (Design Tokens)
   --------------------------------------------- */
:root {
  /* Colors - Dark Theme (default) */
  --color-bg-primary: #1a1a1a;
  --color-bg-primary-rgb: 26, 26, 26;
  --color-bg-secondary: #242424;
  --color-bg-tertiary: #2e2e2e;
  --color-bg-elevated: #333333;
  
  --color-text-primary: #f0f0f0;
  --color-text-secondary: #b0b0b0;
  --color-text-muted: #808080;
  
  --color-accent-red: #d04040;
  --color-accent-red-hover: #e04545;
  --color-accent-blue: #2090d0;
  --color-accent-blue-hover: #25a0e5;
  
  --color-border: #404040;
  --color-border-light: #505050;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow-red: 0 0 20px rgba(208, 64, 64, 0.3);
  --shadow-glow-blue: 0 0 20px rgba(32, 144, 208, 0.3);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', monospace;
  
  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-padding: clamp(1rem, 5vw, 2rem);
  --header-height: 72px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Z-index */
  --z-dropdown: 50;
  --z-sticky: 90;
  --z-header: 100;
  --z-modal: 200;
  --z-tooltip: 300;
}

/* Light Theme */
[data-theme="light"] {
  --color-bg-primary: #f5f5f5;
  --color-bg-primary-rgb: 245, 245, 245;
  --color-bg-secondary: #ffffff;
  --color-bg-tertiary: #e8e8e8;
  --color-bg-elevated: #ffffff;
  
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #505050;
  --color-text-muted: #707070;
  
  --color-border: #d0d0d0;
  --color-border-light: #e0e0e0;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* --------------------------------------------- 
   Reset & Base Styles
   --------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* Focus Styles */
:focus-visible {
  outline: 2px solid var(--color-accent-blue);
  outline-offset: 2px;
}

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent-blue);
  color: #fff;
  border-radius: var(--radius-md);
  z-index: var(--z-tooltip);
  font-weight: 500;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
}

/* --------------------------------------------- 
   Utilities
   --------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.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;
}

/* --------------------------------------------- 
   Buttons
   --------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn--sm {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
}

.btn--lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
}

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

.btn--primary {
  background: var(--color-accent-red);
  color: #fff;
  border: 2px solid var(--color-accent-red);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-accent-red-hover);
  border-color: var(--color-accent-red-hover);
  box-shadow: var(--shadow-glow-red);
}

.btn--outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  border-color: var(--color-accent-blue);
  color: var(--color-accent-blue);
}

/* --------------------------------------------- 
   Header
   --------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-header);
  transition: background var(--transition-base);
}

[data-theme="light"] .header {
  background: rgba(255, 255, 255, 0.95);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

.header__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.header__logo img {
  height: 66px;
  width: auto;
}

/* Logo visibility based on theme */
.logo-light {
  display: none;
}

.logo-dark {
  display: block;
}

[data-theme="light"] .logo-light {
  display: block;
}

[data-theme="light"] .logo-dark {
  display: none;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
}

.nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.nav__toggle:hover {
  background: var(--color-bg-tertiary);
}

.nav__toggle-icon {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-primary);
  position: relative;
  transition: background var(--transition-fast);
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform var(--transition-fast);
}

.nav__toggle-icon::before {
  top: -6px;
}

.nav__toggle-icon::after {
  bottom: -6px;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon {
  background: transparent;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::before {
  transform: rotate(45deg) translate(4px, 5px);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon::after {
  transform: rotate(-45deg) translate(4px, -5px);
}

/* Nav overlay - hidden on desktop */
.nav__overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(var(--color-bg-primary-rgb), 0.85);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
  z-index: calc(var(--z-header) - 1);
}

.nav__overlay.is-open {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 767px) {
  .nav__overlay {
    display: block;
  }
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
}

.nav__link.active {
  color: var(--color-accent-blue);
}

/* Header Actions */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
}

.theme-toggle__icon--light {
  display: none;
}

[data-theme="light"] .theme-toggle__icon--dark {
  display: none;
}

[data-theme="light"] .theme-toggle__icon--light {
  display: block;
}

.header__cta {
  display: none;
}

@media (min-width: 768px) {
  .header__cta {
    display: inline-flex;
  }
}

/* Mobile Navigation */
@media (max-width: 767px) {
  .nav__toggle {
    display: flex;
  }
  
  /* Hide theme toggle in header on mobile - it becomes floating */
  .header__actions .theme-toggle {
    display: none;
  }
  
  /* Hide WhatsApp button on mobile header */
  .header__cta {
    display: none !important;
  }
  
  .nav__menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-lg);
    background: transparent;
    border-top: 1px solid var(--color-border);
    transform: translateX(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-slow), opacity var(--transition-slow), visibility var(--transition-slow);
    z-index: var(--z-header);
  }
  
  .nav__menu.is-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav__link {
    padding: var(--space-md);
    font-size: var(--text-lg);
    border-bottom: 1px solid var(--color-border);
  }
}

/* Floating theme toggle for mobile */
.theme-toggle-mobile {
  display: none;
}

@media (max-width: 767px) {
  .theme-toggle-mobile {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  }
  
  .theme-toggle-mobile:hover,
  .theme-toggle-mobile:focus-visible {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  }
}

/* --------------------------------------------- 
   Hero Section
   --------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-3xl);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  gap: var(--space-3xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
  }
}

.hero__content {
  text-align: center;
}

@media (min-width: 1024px) {
  .hero__content {
    text-align: left;
  }
}

.hero__title {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.hero__title-accent {
  color: var(--color-accent-blue);
}

.hero__title-accent--red {
  color: var(--color-accent-red);
}

.hero__title-accent--blue {
  color: var(--color-accent-blue);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

@media (min-width: 1024px) {
  .hero__subtitle {
    margin-left: 0;
    margin-right: auto;
  }
}

@media (max-width: 1023px) {
  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }
}

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

@media (min-width: 1024px) {
  .hero__ctas {
    justify-content: flex-start;
  }
}

.hero__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

@media (max-width: 639px) {
  .hero__cards {
    grid-template-columns: 1fr;
  }
}

.hero-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.hero-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent-blue);
}

.hero-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-md);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  color: var(--color-accent-blue);
}

.hero-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.hero-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Hero Background */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero__gradient {
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: radial-gradient(ellipse at 80% 20%, rgba(32, 144, 208, 0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 20% 80%, rgba(208, 64, 64, 0.1) 0%, transparent 50%);
}

/* --------------------------------------------- 
   Sections
   --------------------------------------------- */
.section {
  padding: var(--space-4xl) 0;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent-blue);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-top: var(--space-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* --------------------------------------------- 
   Sobre Section
   --------------------------------------------- */
.sobre {
  background: var(--color-bg-secondary);
}

.sobre__content {
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
  text-align: center;
}

.sobre__text {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.sobre__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.sobre-card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: border-color var(--transition-base);
}

.sobre-card:hover {
  border-color: var(--color-accent-blue);
}

.sobre-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-md);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  color: var(--color-accent-blue);
}

.sobre-card__title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.sobre-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --------------------------------------------- 
   Serviços Section
   --------------------------------------------- */
.servicos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.servico-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.servico-card:hover {
  border-color: var(--color-accent-red);
  box-shadow: var(--shadow-md);
}

.servico-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-md);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  color: var(--color-accent-red);
}

.servico-card__title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.servico-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.servico-card__list {
  margin-bottom: var(--space-lg);
  flex-grow: 1;
}

.servico-card__list li {
  position: relative;
  padding-left: var(--space-lg);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.servico-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  background: var(--color-accent-blue);
  border-radius: 50%;
}

.servico-card__cta {
  margin-top: auto;
}

/* --------------------------------------------- 
   Portfólio Section
   --------------------------------------------- */
.portfolio {
  background: var(--color-bg-secondary);
}

.portfolio__tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.portfolio__tab {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.portfolio__tab:hover {
  color: var(--color-text-primary);
}

.portfolio__tab.active {
  background: var(--color-accent-blue);
  color: #fff;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.portfolio-item {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.portfolio-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.portfolio-item__image {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--color-bg-tertiary);
  overflow: hidden;
}

.portfolio-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-item__image img {
  transform: scale(1.05);
}

.portfolio-item__badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  background: var(--color-accent-blue);
  color: #fff;
  border-radius: var(--radius-sm);
}

.portfolio-item__content {
  padding: var(--space-md);
}

.portfolio-item__title {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.portfolio-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.portfolio-item[hidden] {
  display: none;
}

/* --------------------------------------------- 
   Processo Section
   --------------------------------------------- */
.processo__stepper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.processo__step {
  position: relative;
  text-align: center;
  padding: var(--space-lg);
}

.processo__step::after {
  content: '';
  position: absolute;
  top: 32px;
  right: -50%;
  width: 100%;
  height: 2px;
  background: var(--color-border);
}

.processo__step:last-child::after {
  display: none;
}

@media (max-width: 767px) {
  .processo__step::after {
    display: none;
  }
}

.processo__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  background: var(--color-accent-blue);
  color: #fff;
  font-size: var(--text-lg);
  font-weight: 700;
  border-radius: 50%;
  position: relative;
  z-index: 1;
}

.processo__step-title {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.processo__step-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* Garantia */
.garantia {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

@media (max-width: 639px) {
  .garantia {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
}

.garantia__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  color: var(--color-accent-blue);
}

.garantia__title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.garantia__text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --------------------------------------------- 
   Contato Section
   --------------------------------------------- */
.contato {
  background: var(--color-bg-secondary);
}

.contato__grid {
  display: grid;
  gap: var(--space-2xl);
}

@media (min-width: 768px) {
  .contato__grid {
    grid-template-columns: 1fr 1.5fr;
    align-items: start;
  }
}

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

.contato-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.contato-card:hover {
  border-color: var(--color-accent-blue);
  transform: translateX(4px);
}

.contato-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.contato-card__icon--whatsapp {
  background: rgba(37, 211, 102, 0.15);
  color: #25d366;
}

.contato-card__icon--instagram {
  background: rgba(225, 48, 108, 0.15);
  color: #e1306c;
}

.contato-card__icon--email {
  background: rgba(32, 144, 208, 0.15);
  color: var(--color-accent-blue);
}

.contato-card__label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.contato-card__value {
  font-weight: 600;
}

/* Contact Form */
.contato__form {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: var(--space-md);
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent-blue);
  box-shadow: 0 0 0 3px rgba(32, 144, 208, 0.2);
}

.form-input.is-invalid {
  border-color: var(--color-accent-red);
}

.form-input.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(208, 64, 64, 0.2);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23b0b0b0' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  padding-right: var(--space-2xl);
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-accent-red);
  margin-top: var(--space-xs);
  min-height: 1.2em;
}

/* --------------------------------------------- 
   Footer
   --------------------------------------------- */
.footer {
  background: var(--color-bg-primary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
  text-align: center;
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__logo {
  height: 66px;
  width: auto;
  margin-bottom: var(--space-sm);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

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

.footer__links a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-accent-blue);
}

.footer__copy {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.footer__location {
  margin-top: var(--space-xs);
}

/* --------------------------------------------- 
   Back to Top Button
   --------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  left: var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity var(--transition-base), visibility var(--transition-base), transform var(--transition-base), color var(--transition-fast), background var(--transition-fast);
  z-index: 50;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  color: var(--color-accent-blue);
  background: var(--color-bg-tertiary);
}

/* --------------------------------------------- 
   Modal
   --------------------------------------------- */
.modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  border: none;
  max-width: 100%;
  max-height: 100%;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal[open] {
  opacity: 1;
  visibility: visible;
}

.modal::backdrop {
  background: transparent;
}

.modal__content {
  position: relative;
  max-width: 800px;
  max-height: 90vh;
  width: 100%;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

.modal[open] .modal__content {
  transform: scale(1);
}

.modal__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
  z-index: 1;
}

.modal__close:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
}

.modal__body {
  padding: var(--space-xl);
  max-height: calc(90vh - var(--space-xl));
  overflow-y: auto;
}

.modal__image {
  width: 100%;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.modal__title {
  font-size: var(--text-2xl);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.modal__category {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  background: var(--color-accent-blue);
  color: #fff;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.modal__desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.modal__specs {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
}

.modal__specs-title {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-accent-blue);
}

.modal__specs-list {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.modal__specs-list li {
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-border);
}

.modal__specs-list li:last-child {
  border-bottom: none;
}

/* --------------------------------------------- 
   Placeholder Images
   --------------------------------------------- */
.placeholder-image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-bg-tertiary) 0%, var(--color-bg-primary) 100%);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}