/* ================================
   RESET & BASE
   ================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
}

:root {
  /* ===========================
     PALETA DE CORES - ST MOTORS
     =========================== */

  /* Identidade da Marca */
  --color-primary: #4f9e21;
  --color-primary-hover: #68a744;
  --color-primary-dark: #3a6126;
  --color-primary-light: #8BC96A;

  /* Backgrounds */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #FAFAF8;
  --color-bg-dark: #0F0F0F;
  --color-bg-dark-secondary: #1A1A1A;

  /* Textos */
  --color-text-primary: #1A1A1A;
  --color-text-secondary: #6B6B6B;
  --color-text-tertiary: #999999;
  --color-text-light: #FAFAF8;

  /* Bordas */
  --color-border-light: #E5E5E5;
  --color-border-medium: #CCCCCC;
  --color-border-dark: #2A2A2A;

  /* Social Media Colors */
  --color-whatsapp: #25D366;
  --color-facebook: #1877F2;
  --color-instagram: #c71fa3;
  --color-google-maps: #EA4335;
  --color-google: #4285F4;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Layout */
  --header-height: 72px;
  --header-height-mobile: 64px;
  --max-width-container: 1280px;
  --max-width-search: 680px;
  --transition-speed: 0.3s;
  --transition-ease: cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index Scale */
  --z-header: 1000;
  --z-overlay: 998;
  --z-mobile-menu: 999;
  --z-location-badge: 100;
  --z-skip-link: 10000;
}

/* ===========================
   HTML & BODY
   =========================== */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* ================================
   SKIP LINK
   ================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: var(--z-skip-link);
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: #fff;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
  text-decoration: none;
  border-radius: 0 0 4px 0;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* ================================
   HEADER CONTAINER
   ================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height-mobile);
  background: rgba(250, 250, 248, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
  box-shadow: 0 8px 32px rgba(15, 15, 15, 0.12);
  z-index: var(--z-header);
  transition: all var(--transition-speed) var(--transition-ease);
  transform: translateZ(0);
  will-change: transform;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 20px rgba(15, 15, 15, 0.08);
}

.header__container {
  max-width: var(--max-width-container);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ================================
   LOGO
   ================================ */
.header__logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity var(--transition-speed) ease;
  min-height: 44px;
  min-width: 44px;
}

.header__logo-link:hover,
.header__logo-link:focus {
  opacity: 0.85;
}

.header__logo-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 4px;
}

.header__logo-img {
  height: 42px;
  width: auto;
  display: block;
}

/* ================================
   NAVIGATION DESKTOP
   ================================ */
.header__nav {
  display: none;
}

.nav__list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: var(--spacing-xs);
  margin: 0;
  padding: 0;
}

.nav__link {
  position: relative;
  display: block;
  padding: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
  white-space: nowrap;
  min-height: 44px;
  min-width: 44px;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transform: translateX(-50%);
  transition: width var(--transition-speed) ease;
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 80%;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-primary);
}

.nav__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ================================
   MOBILE MENU TOGGLE
   ================================ */
.header__menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 48px;
  height: 48px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
  transition: transform var(--transition-speed) ease;
}

.header__menu-toggle:hover {
  transform: scale(1.05);
}

.header__menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.header__menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--color-text-primary);
  border-radius: 3px;
  transition: all var(--transition-speed) var(--transition-ease);
}

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

.header__menu-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: translateX(20px);
}

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

/* ================================
   MOBILE NAVIGATION
   ================================ */
.header__nav-mobile {
  position: fixed;
  top: var(--header-height-mobile);
  right: -100%;
  width: 280px;
  height: calc(100vh - var(--header-height-mobile));
  background: var(--color-bg-primary);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
  overflow-y: auto;
  z-index: var(--z-mobile-menu);
  transition: right var(--transition-speed) var(--transition-ease);
}

.header__nav-mobile.active {
  right: 0;
}

.nav__list-mobile {
  list-style: none;
  padding: var(--spacing-md);
}

.nav__item-mobile {
  border-bottom: 1px solid var(--color-border-light);
}

.nav__item-mobile:last-child {
  border-bottom: none;
}

.nav__link-mobile {
  display: block;
  padding: var(--spacing-md) var(--spacing-sm);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: all var(--transition-speed) ease;
  min-height: 44px;
  position: relative;
  border-left: 4px solid transparent;
}

.nav__link-mobile:hover {
  color: var(--color-primary);
  padding-left: var(--spacing-md);
}

.nav__link-mobile--active {
  color: var(--color-primary);
  background: rgba(79, 158, 33, 0.08);
  border-left: 4px solid var(--color-primary);
  padding-left: calc(var(--spacing-md) + 4px);
  font-weight: var(--font-weight-semibold);
}

.nav__link-mobile--active::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: var(--color-primary);
  box-shadow: 0 0 8px rgba(79, 158, 33, 0.4);
}

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

/* ================================
   OVERLAY
   ================================ */
.header__overlay {
  position: fixed;
  top: var(--header-height-mobile);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height-mobile));
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  z-index: var(--z-overlay);
  transition: all var(--transition-speed) ease;
}

.header__overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ================================
   RESPONSIVE - TABLET
   ================================ */
@media screen and (min-width: 768px) {

  .header {
    height: var(--header-height);
  }

  .header__container {
    padding: 0 var(--spacing-md);
  }

  .header__logo-img {
    height: 48px;
  }

  .header__menu-toggle {
    display: none;
  }

  .header__nav {
    display: block;
  }

  .header__nav-mobile {
    display: none;
  }

  .header__overlay {
    display: none;
  }

  .nav__list {
    gap: var(--spacing-sm);
  }

  .nav__link {
    font-size: var(--font-size-base);
    padding: var(--spacing-xs) var(--spacing-md);
  }
}

/* ================================
   RESPONSIVE - DESKTOP
   ================================ */
@media screen and (min-width: 1024px) {
  .header__container {
    padding: 0 var(--spacing-lg);
  }

  .header__logo-img {
    height: 52px;
  }

  .nav__list {
    gap: var(--spacing-md);
  }

  .nav__link {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* ================================
   RESPONSIVE - LARGE DESKTOP
   ================================ */
@media screen and (min-width: 1280px) {
  .nav__list {
    gap: var(--spacing-md);
  }
}

/* ================================
   ACESSIBILIDADE
   ================================ */
@media (prefers-reduced-motion: reduce) {
  .skip-link {
    transition: none;
  }

  .header,
  .header__nav-mobile,
  .header__overlay,
  .nav__link::after,
  .header__menu-toggle span {
    transition: none !important;
  }
}

@media (prefers-contrast: high) {
  .header {
    border-bottom-width: 2px;
  }

  .nav__link--active {
    border-bottom: 2px solid var(--color-primary);
  }
}

/* ================================
   PRINT STYLES
   ================================ */
@media print {
  .header {
    display: none;
  }
}