/* ==========================================================================
   Nova Luz Elétrica - Design System & Styles
   E-commerce de Materiais Elétricos
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Variables / Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Primary Colors */
  --color-primary: #0A1A44;
  --color-primary-light: #1D3580;
  --color-primary-lighter: #2D4A9E;
  --color-primary-bg: #E8EDF5;

  /* Accent Colors */
  --color-accent: #F2C94C;
  --color-accent-dark: #E5B93F;
  --color-accent-darker: #D4A82E;
  --color-accent-light: #F9E8B3;
  --color-accent-bg: #FEF9E7;

  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-gray-50: #F7F7F7;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Status Colors */
  --color-success: #10B981;
  --color-success-light: #D1FAE5;
  --color-warning: #F59E0B;
  --color-warning-light: #FEF3C7;
  --color-error: #EF4444;
  --color-error-light: #FEE2E2;
  --color-info: #3B82F6;
  --color-info-light: #DBEAFE;

  /* Typography */
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(10, 26, 68, 0.05);
  --shadow-md: 0 4px 6px rgba(10, 26, 68, 0.07);
  --shadow-lg: 0 10px 15px rgba(10, 26, 68, 0.1);
  --shadow-xl: 0 20px 25px rgba(10, 26, 68, 0.15);
  --shadow-2xl: 0 25px 50px rgba(10, 26, 68, 0.25);
  --shadow-card: 0 2px 8px rgba(10, 26, 68, 0.08);
  --shadow-hover: 0 8px 16px rgba(10, 26, 68, 0.12);
  --shadow-input: 0 1px 3px rgba(10, 26, 68, 0.1);
  --shadow-inner: inset 0 2px 4px rgba(10, 26, 68, 0.06);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-slower: 400ms ease;

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  --z-toast: 800;

  /* Layout */
  --container-max: 1280px;
  --container-padding: 1.5rem;
  --header-height: 80px;
  --header-height-mobile: 64px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-gray-700);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Selection */
::selection {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

/* Links */
a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
}

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

/* Lists */
ul, ol {
  list-style: none;
}

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

/* Inputs */
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
  line-height: var(--leading-tight);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

/* Paragraphs */
p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   3. Layout Components
   -------------------------------------------------------------------------- */

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Section */
.section {
  padding: var(--space-12) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--space-16) 0;
  }
}

@media (min-width: 1024px) {
  .section {
    padding: var(--space-20) 0;
  }
}

.section--gray {
  background-color: var(--color-gray-50);
}

.section--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section--primary h1,
.section--primary h2,
.section--primary h3,
.section--primary h4 {
  color: var(--color-white);
}

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

.section__header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section__title {
  margin-bottom: var(--space-4);
}

.section__subtitle {
  color: var(--color-gray-500);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 767px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Flex */
.flex {
  display: flex;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  align-items: center;
  justify-content: space-between;
}

.flex--column {
  flex-direction: column;
}

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

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* --------------------------------------------------------------------------
   4. Header Styles
   -------------------------------------------------------------------------- */

/* Top Bar */
.top-bar {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
}

.top-bar__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.top-bar__contact {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.top-bar__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-white);
  opacity: 0.9;
  transition: opacity var(--transition-fast);
}

.top-bar__item:hover {
  opacity: 1;
  color: var(--color-accent);
}

.top-bar__social {
  display: flex;
  gap: var(--space-4);
}

.top-bar__social a {
  color: var(--color-white);
  opacity: 0.9;
  transition: all var(--transition-fast);
}

.top-bar__social a:hover {
  opacity: 1;
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* Main Header */
.header {
  background-color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

.header--scrolled {
  box-shadow: var(--shadow-lg);
}

.header__main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  gap: var(--space-4);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__logo img {
  height: 48px;
  width: auto;
}

.header__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-primary);
  line-height: 1.1;
}

.header__logo-text span {
  display: block;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-gray-500);
}

/* Navigation */
.nav {
  display: none;
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
  }
}

.nav__list {
  display: flex;
  gap: var(--space-6);
}

.nav__link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  padding: var(--space-2) 0;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

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

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--cta {
  background-color: var(--color-accent);
  color: var(--color-primary);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav__link--cta:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-primary);
}

.nav__link--cta::after {
  display: none;
}

/* Header Actions */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header__action {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  color: var(--color-gray-700);
  transition: all var(--transition-fast);
}

.header__action:hover {
  background-color: var(--color-gray-100);
  color: var(--color-primary);
}

.header__action svg {
  width: 24px;
  height: 24px;
}

.header__cart-count {
  position: absolute;
  top: 0;
  right: 0;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--space-3);
  cursor: pointer;
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle__bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-fast);
  transform-origin: center;
}

.menu-toggle--active .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle--active .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-white);
  z-index: var(--z-modal);
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

.mobile-menu--active {
  transform: translateX(0);
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--container-padding);
  border-bottom: 1px solid var(--color-gray-200);
}

.mobile-menu__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-700);
}

.mobile-menu__nav {
  padding: var(--space-6) var(--container-padding);
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mobile-menu__link {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-gray-700);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-menu__link:hover,
.mobile-menu__link--active {
  background-color: var(--color-gray-100);
  color: var(--color-primary);
}

.mobile-menu__footer {
  padding: var(--space-6) var(--container-padding);
  border-top: 1px solid var(--color-gray-200);
}

/* Search */
.search-toggle {
  display: none;
}

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

.search-form {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  padding: var(--space-4);
  background-color: var(--color-white);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
}

.search-form--active {
  display: block;
}

.search-form__input {
  width: 100%;
  padding: var(--space-4);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  font-size: var(--text-lg);
  transition: border-color var(--transition-fast);
}

.search-form__input:focus {
  border-color: var(--color-primary-light);
  outline: none;
}

/* --------------------------------------------------------------------------
   5. Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    min-height: 600px;
  }
}

@media (min-width: 1024px) {
  .hero {
    min-height: 700px;
  }
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__background img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 26, 68, 0.95) 0%, rgba(29, 53, 128, 0.85) 100%);
  z-index: 1;
}

.hero__pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(242, 201, 76, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(242, 201, 76, 0.05) 0%, transparent 30%);
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  color: var(--color-white);
  padding: var(--space-12) 0;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background-color: rgba(242, 201, 76, 0.2);
  color: var(--color-accent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease;
}

.hero__title {
  font-size: var(--text-3xl);
  color: var(--color-white);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--text-4xl);
  }
}

@media (min-width: 1024px) {
  .hero__title {
    font-size: var(--text-5xl);
  }
}

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

.hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  max-width: 500px;
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.6s ease 0.2s both;
}

@media (min-width: 768px) {
  .hero__subtitle {
    font-size: var(--text-xl);
  }
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  animation: fadeInUp 0.6s ease 0.4s both;
}

@media (min-width: 480px) {
  .hero__actions {
    flex-direction: row;
  }
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--color-white);
  animation: bounce 2s infinite;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* --------------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

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

.btn--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--primary:active {
  background-color: var(--color-accent-darker);
  transform: translateY(0);
}

.btn--secondary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

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

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

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

.btn--lg {
  padding: var(--space-5) var(--space-8);
  font-size: var(--text-base);
}

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

.btn--icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
}

.btn--icon svg {
  width: 20px;
  height: 20px;
}

.btn:disabled,
.btn--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* --------------------------------------------------------------------------
   7. Cards
   -------------------------------------------------------------------------- */

/* Product Card */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
}

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

.card__image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background-color: var(--color-gray-100);
}

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

.card:hover .card__image img {
  transform: scale(1.05);
}

.card__badges {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.card__badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
}

.card__badge--new {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.card__badge--sale {
  background-color: var(--color-error);
  color: var(--color-white);
}

.card__badge--solar {
  background-color: var(--color-success);
  color: var(--color-white);
}

.card__badge--featured {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

.card__wishlist {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 36px;
  height: 36px;
  background-color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-400);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  z-index: 2;
}

.card__wishlist:hover {
  color: var(--color-error);
  transform: scale(1.1);
}

.card__wishlist--active {
  color: var(--color-error);
}

.card__wishlist svg {
  width: 18px;
  height: 18px;
}

.card__content {
  padding: var(--space-4);
}

.card__category {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-1);
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: var(--space-2);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__title a {
  color: inherit;
}

.card__title a:hover {
  color: var(--color-primary-light);
}

.card__sku {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  margin-bottom: var(--space-3);
}

.card__rating {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.card__stars {
  display: flex;
  gap: 2px;
}

.card__stars svg {
  width: 14px;
  height: 14px;
  color: var(--color-accent);
  fill: var(--color-accent);
}

.card__stars svg.empty {
  color: var(--color-gray-300);
  fill: var(--color-gray-300);
}

.card__reviews {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.card__price {
  margin-bottom: var(--space-4);
}

.card__price-current {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.card__price-installments {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.card__price-old {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  text-decoration: line-through;
  margin-left: var(--space-2);
}

.card__actions {
  display: flex;
  gap: var(--space-2);
}

.card__actions .btn {
  flex: 1;
  padding: var(--space-3);
}

.card__quick-view {
  display: none;
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-white);
  color: var(--color-primary);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--text-sm);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: all var(--transition-fast);
}

.card:hover .card__quick-view {
  opacity: 1;
}

.card__quick-view:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Category Card */
.category-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  background-color: var(--color-gray-50);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  min-height: 200px;
  text-decoration: none;
}

.category-card:hover {
  background-color: var(--color-primary-bg);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-card__icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-4);
  color: var(--color-primary-light);
  transition: all var(--transition-base);
}

.category-card:hover .category-card__icon {
  color: var(--color-accent);
  transform: scale(1.1);
}

.category-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
}

.category-card__count {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-1);
}

/* Service Card */
.service-card {
  padding: var(--space-6);
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.service-card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  padding: var(--space-5);
  background-color: var(--color-accent-bg);
  border-radius: var(--radius-full);
  color: var(--color-primary);
}

.service-card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.service-card__description {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

/* --------------------------------------------------------------------------
   8. Forms
   -------------------------------------------------------------------------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(29, 53, 128, 0.1);
}

.form-input::placeholder {
  color: var(--color-gray-400);
}

.form-input--error {
  border-color: var(--color-error);
}

.form-input--success {
  border-color: var(--color-success);
}

.form-error {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-hint {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-top: var(--space-1);
}

.form-checkbox,
.form-radio {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
}

.form-checkbox input,
.form-radio input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.form-checkbox span,
.form-radio span {
  font-size: var(--text-sm);
  color: var(--color-gray-700);
}

/* --------------------------------------------------------------------------
   9. Section Specific Styles
   -------------------------------------------------------------------------- */

/* Categories Section */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .categories-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Products Section */
.products-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

@media (min-width: 768px) {
  .products-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.products-tabs {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.products-tab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-600);
  background: none;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.products-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.products-tab--active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* Solar Banner */
.solar-banner {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-8);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-xl);
  color: var(--color-white);
}

@media (min-width: 768px) {
  .solar-banner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: var(--space-12);
  }
}

.solar-banner__content h2 {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.solar-banner__content h2 span {
  color: var(--color-accent);
}

.solar-banner__content p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-6);
}

.solar-banner__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.solar-banner__feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.solar-banner__feature svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.solar-banner__image {
  display: none;
}

@media (min-width: 768px) {
  .solar-banner__image {
    display: block;
    text-align: center;
  }

  .solar-banner__image svg {
    width: 100%;
    max-width: 300px;
    color: var(--color-accent);
    opacity: 0.8;
  }
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-item {
  text-align: center;
  padding: var(--space-6);
}

.feature-item__icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-4);
  padding: var(--space-4);
  background-color: var(--color-accent-bg);
  border-radius: var(--radius-full);
  color: var(--color-primary);
}

.feature-item__icon svg {
  width: 100%;
  height: 100%;
}

.feature-item__title {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.feature-item__description {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

/* --------------------------------------------------------------------------
   10. Cart Slide-out
   -------------------------------------------------------------------------- */
.cart-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 26, 68, 0.5);
  z-index: var(--z-modal-backdrop);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.cart-overlay--active {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 420px;
  height: 100vh;
  background-color: var(--color-white);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.cart-sidebar--active {
  transform: translateX(0);
}

.cart-sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--color-gray-200);
}

.cart-sidebar__title {
  font-size: var(--text-lg);
  font-weight: 700;
}

.cart-sidebar__close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.cart-sidebar__close:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
}

.cart-sidebar__items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
}

.cart-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.cart-item:last-child {
  border-bottom: none;
}

.cart-item__image {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-gray-100);
  flex-shrink: 0;
}

.cart-item__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item__info {
  flex: 1;
  min-width: 0;
}

.cart-item__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: var(--space-1);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cart-item__sku {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  margin-bottom: var(--space-2);
}

.cart-item__price {
  font-weight: 700;
  color: var(--color-primary);
}

.cart-item__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.cart-item__quantity {
  display: flex;
  align-items: center;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
}

.cart-item__quantity-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-600);
  transition: all var(--transition-fast);
}

.cart-item__quantity-btn:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-800);
}

.cart-item__quantity-value {
  width: 32px;
  text-align: center;
  font-size: var(--text-sm);
  font-weight: 600;
}

.cart-item__remove {
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.cart-item__remove:hover {
  color: var(--color-error);
}

.cart-empty {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.cart-empty__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-4);
  color: var(--color-gray-300);
}

.cart-empty__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.cart-empty__description {
  color: var(--color-gray-500);
  margin-bottom: var(--space-6);
}

.cart-sidebar__footer {
  padding: var(--space-5);
  border-top: 1px solid var(--color-gray-200);
  background-color: var(--color-gray-50);
}

.cart-summary {
  margin-bottom: var(--space-4);
}

.cart-summary__row {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
}

.cart-summary__row--total {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-gray-200);
  margin-top: var(--space-2);
}

.cart-summary__coupon {
  margin-bottom: var(--space-4);
}

.cart-summary__coupon input {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}

.cart-freight {
  margin-bottom: var(--space-4);
}

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

.cart-freight__input {
  display: flex;
  gap: var(--space-2);
}

.cart-freight__input input {
  flex: 1;
  padding: var(--space-3);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   11. Quick View Modal
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(10, 26, 68, 0.6);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay--active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

.modal-overlay--active .modal {
  transform: scale(1);
}

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-white);
  border-radius: var(--radius-full);
  color: var(--color-gray-600);
  box-shadow: var(--shadow-md);
  z-index: 1;
  transition: all var(--transition-fast);
}

.modal__close:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-800);
}

.modal__content {
  display: grid;
  gap: var(--space-6);
}

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

.modal__gallery {
  padding: var(--space-6);
  background-color: var(--color-gray-50);
}

.modal__main-image {
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-white);
  margin-bottom: var(--space-4);
}

.modal__main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal__thumbs {
  display: flex;
  gap: var(--space-2);
}

.modal__thumb {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

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

.modal__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal__info {
  padding: var(--space-6);
}

.modal__category {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-2);
}

.modal__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-3);
}

.modal__rating {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.modal__price {
  margin-bottom: var(--space-6);
}

.modal__price-current {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
}

.modal__price-installments {
  color: var(--color-gray-500);
  font-size: var(--text-sm);
}

.modal__description {
  color: var(--color-gray-600);
  margin-bottom: var(--space-6);
}

.modal__quantity {
  margin-bottom: var(--space-6);
}

.modal__quantity-label {
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
  display: block;
}

.modal__quantity-input {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: fit-content;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  padding: var(--space-1);
}

.modal__quantity-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gray-600);
  transition: all var(--transition-fast);
}

.modal__quantity-btn:hover {
  background-color: var(--color-gray-100);
  color: var(--color-gray-800);
}

.modal__quantity-value {
  width: 50px;
  text-align: center;
  font-weight: 600;
}

.modal__actions {
  display: flex;
  gap: var(--space-3);
}

.modal__actions .btn {
  flex: 1;
}

/* --------------------------------------------------------------------------
   12. Footer
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding-top: var(--space-16);
}

.footer__top {
  display: grid;
  gap: var(--space-10);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer__logo img {
  height: 40px;
}

.footer__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xl);
}

.footer__description {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background-color: var(--color-accent);
  color: var(--color-primary);
}

.footer__column h4 {
  color: var(--color-white);
  font-size: var(--text-base);
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
}

.footer__contact-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6) 0;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer__payments {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.footer__payment {
  height: 24px;
  width: auto;
  opacity: 0.7;
}

.footer__certifications {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.footer__certification {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
}

.footer__certification svg {
  width: 24px;
  height: 24px;
  color: var(--color-success);
}

/* --------------------------------------------------------------------------
   13. WhatsApp Float
   -------------------------------------------------------------------------- */
.whatsapp-float {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-fixed);
}

.whatsapp-float__button {
  width: 60px;
  height: 60px;
  background-color: #25D366;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  box-shadow: var(--shadow-xl);
  transition: all var(--transition-fast);
  animation: pulse 2s infinite;
}

.whatsapp-float__button:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-2xl);
}

.whatsapp-float__button svg {
  width: 32px;
  height: 32px;
}

.whatsapp-float__tooltip {
  position: absolute;
  right: calc(100% + var(--space-3));
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--color-white);
  color: var(--color-gray-700);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.whatsapp-float__button:hover + .whatsapp-float__tooltip,
.whatsapp-float:hover .whatsapp-float__tooltip {
  opacity: 1;
  visibility: visible;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  70% {
    box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
  }
}

/* --------------------------------------------------------------------------
   14. Toast Notifications
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 300px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast--success {
  border-left: 4px solid var(--color-success);
}

.toast--error {
  border-left: 4px solid var(--color-error);
}

.toast--warning {
  border-left: 4px solid var(--color-warning);
}

.toast__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.toast--success .toast__icon {
  color: var(--color-success);
}

.toast--error .toast__icon {
  color: var(--color-error);
}

.toast--warning .toast__icon {
  color: var(--color-warning);
}

.toast__content {
  flex: 1;
}

.toast__title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-gray-800);
}

.toast__message {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.toast__close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.toast__close:hover {
  color: var(--color-gray-600);
}

/* --------------------------------------------------------------------------
   15. Page Headers
   -------------------------------------------------------------------------- */
.page-header {
  background-color: var(--color-gray-50);
  padding: var(--space-12) 0;
  text-align: center;
}

.page-header__title {
  margin-bottom: var(--space-4);
}

.page-header__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.page-header__breadcrumb a {
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.page-header__breadcrumb a:hover {
  color: var(--color-primary);
}

.page-header__breadcrumb svg {
  width: 14px;
  height: 14px;
}

/* --------------------------------------------------------------------------
   16. Account Pages
   -------------------------------------------------------------------------- */
.auth-container {
  display: grid;
  gap: var(--space-8);
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-8) var(--container-padding);
}

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

.auth-box {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
}

.auth-box__header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.auth-box__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}

.auth-box__subtitle {
  color: var(--color-gray-500);
  font-size: var(--text-sm);
}

.auth-box__tabs {
  display: flex;
  border-bottom: 2px solid var(--color-gray-200);
  margin-bottom: var(--space-8);
}

.auth-box__tab {
  flex: 1;
  padding: var(--space-4);
  font-weight: 600;
  color: var(--color-gray-500);
  text-align: center;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.auth-box__tab:hover {
  color: var(--color-primary);
}

.auth-box__tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  color: var(--color-gray-400);
  font-size: var(--text-sm);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--color-gray-200);
}

.auth-social {
  display: flex;
  gap: var(--space-3);
}

.auth-social__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.auth-social__btn:hover {
  background-color: var(--color-gray-50);
  border-color: var(--color-gray-300);
}

.auth-social__btn svg {
  width: 20px;
  height: 20px;
}

.auth-forgot {
  text-align: right;
  margin-bottom: var(--space-6);
}

.auth-forgot a {
  font-size: var(--text-sm);
  color: var(--color-primary-light);
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   17. Product Page
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  gap: var(--space-8);
}

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

.product-gallery {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.product-gallery__main {
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-gray-100);
  margin-bottom: var(--space-4);
}

.product-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-gallery__thumbs {
  display: flex;
  gap: var(--space-3);
}

.product-gallery__thumb {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.product-gallery__thumb:hover,
.product-gallery__thumb--active {
  border-color: var(--color-primary);
}

.product-gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-details__category {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-2);
}

.product-details__title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.product-details__rating {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.product-details__price {
  padding: var(--space-6);
  background-color: var(--color-gray-50);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-6);
}

.product-details__price-current {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.product-details__price-installments {
  color: var(--color-gray-500);
  font-size: var(--text-sm);
}

.product-details__sku {
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

.product-details__stock {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-success);
}

.product-details__stock svg {
  width: 16px;
  height: 16px;
}

.product-details__stock--low {
  color: var(--color-warning);
}

.product-details__stock--out {
  color: var(--color-error);
}

.product-tabs {
  margin-top: var(--space-12);
}

.product-tabs__nav {
  display: flex;
  border-bottom: 2px solid var(--color-gray-200);
  margin-bottom: var(--space-6);
  overflow-x: auto;
}

.product-tabs__btn {
  padding: var(--space-4) var(--space-6);
  font-weight: 600;
  color: var(--color-gray-500);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.product-tabs__btn:hover {
  color: var(--color-primary);
}

.product-tabs__btn--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.product-tabs__content {
  display: none;
}

.product-tabs__content--active {
  display: block;
}

/* --------------------------------------------------------------------------
   18. Solar Page
   -------------------------------------------------------------------------- */
.solar-hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, #065f46 100%);
  overflow: hidden;
}

.solar-hero__content {
  position: relative;
  z-index: 2;
  color: var(--color-white);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-12) 0;
}

.solar-hero__icon {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-6);
  color: var(--color-accent);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.solar-hero__title {
  color: var(--color-white);
  font-size: var(--text-4xl);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .solar-hero__title {
    font-size: var(--text-5xl);
  }
}

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

.solar-hero__subtitle {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-8);
}

.solar-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
}

@media (min-width: 768px) {
  .solar-features {
    grid-template-columns: repeat(4, 1fr);
  }
}

.solar-feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
}

.solar-feature__icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent);
}

.solar-feature__text {
  font-weight: 600;
  font-size: var(--text-sm);
  text-align: center;
}

/* Gallery */
.solar-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .solar-gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .solar-gallery {
    grid-template-columns: repeat(4, 1fr);
  }
}

.gallery-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

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

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 26, 68, 0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-4);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__title {
  color: var(--color-white);
  font-weight: 600;
  font-size: var(--text-sm);
}

.gallery-item__info {
  color: var(--color-accent);
  font-size: var(--text-xs);
}

/* Simulator */
.simulator {
  background: linear-gradient(135deg, var(--color-accent-bg) 0%, var(--color-gray-50) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  text-align: center;
}

.simulator__title {
  margin-bottom: var(--space-2);
}

.simulator__subtitle {
  color: var(--color-gray-500);
  margin-bottom: var(--space-8);
}

.simulator__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 400px;
  margin: 0 auto var(--space-8);
}

@media (min-width: 480px) {
  .simulator__form {
    flex-direction: row;
  }
}

.simulator__input-group {
  position: relative;
  flex: 1;
}

.simulator__input {
  width: 100%;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-10);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  font-size: var(--text-lg);
  font-weight: 600;
  transition: border-color var(--transition-fast);
}

.simulator__input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.simulator__currency {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  font-weight: 600;
}

.simulator__result {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  max-width: 500px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
}

.simulator__result-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-4);
  color: var(--color-success);
}

.simulator__result-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-success);
  margin-bottom: var(--space-2);
}

.simulator__result-label {
  color: var(--color-gray-500);
  margin-bottom: var(--space-4);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}

.testimonial-card__stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--space-4);
  color: var(--color-accent);
}

.testimonial-card__text {
  color: var(--color-gray-600);
  margin-bottom: var(--space-4);
  font-style: italic;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-weight: 700;
}

.testimonial-card__name {
  font-weight: 600;
  color: var(--color-gray-800);
}

.testimonial-card__location {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

/* CTA Section */
.solar-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  text-align: center;
  color: var(--color-white);
}

.solar-cta__title {
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.solar-cta__title span {
  color: var(--color-accent);
}

.solar-cta__description {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.solar-cta__buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  justify-content: center;
}

@media (min-width: 480px) {
  .solar-cta__buttons {
    flex-direction: row;
  }
}

/* --------------------------------------------------------------------------
   19. Utilities
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-muted { color: var(--color-gray-500); }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Spacing Utilities */
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Animations */
.animate-fadeIn {
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-slideUp {
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Loader */
.loader {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .whatsapp-float,
  .cart-sidebar {
    display: none !important;
  }
}

/* --------------------------------------------------------------------------
   Ajustes v3 - identidade visual, header/footer e home
   -------------------------------------------------------------------------- */
.header__logo-mark {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 24px rgba(10, 26, 68, 0.16);
}

.header__logo-mark svg {
  width: 100%;
  height: 100%;
}

.header__logo-img {
  max-height: 56px;
  width: auto;
  object-fit: contain;
}

.top-bar__item svg,
.top-bar__social a svg {
  flex: 0 0 auto;
}

.home-highlight-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 20px;
}

.footer--enhanced {
  background: linear-gradient(180deg, #08132f 0%, #0d1f4d 100%);
  color: #fff;
}

.footer__grid-simple {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr;
  gap: 24px;
}

.footer__brand-block {
  max-width: 520px;
}

.footer__contact-list {
  display: grid;
  gap: 12px;
}

.footer__contact-item {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.95rem;
}

.footer__contact-item:hover {
  color: #F2C94C;
}

.mobile-menu__footer .btn {
  justify-content: center;
}

@media (min-width: 768px) {
  #topbar-address {
    display: inline-flex !important;
  }
}

@media (max-width: 1023px) {
  .home-highlight-grid,
  .footer__grid-simple {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .top-bar__content,
  .top-bar__contact,
  .top-bar__social--session {
    justify-content: center;
  }

  .top-bar__contact {
    gap: 10px;
  }

  .top-bar__social--session {
    width: 100%;
  }

  .header__main {
    padding: 12px 0;
  }

  .header__logo-text {
    font-size: 1rem;
  }

  .header__logo-mark {
    width: 42px;
    height: 42px;
  }

  .slider__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* --------------------------------------------------------------------------
   14. E-commerce checkout additions
   -------------------------------------------------------------------------- */
.product-card-public__actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.mobile-menu__link--button {
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
}

.product-purchase-box {
  margin-top: var(--space-6);
  padding: var(--space-5);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.product-purchase-box__actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.qty-control {
  display: inline-grid;
  grid-template-columns: 44px minmax(70px, 100px) 44px;
  align-items: center;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-white);
}

.qty-control__btn {
  width: 44px;
  height: 44px;
  font-size: 1.35rem;
  color: var(--color-primary);
  background: var(--color-gray-50);
}

.qty-control__input {
  width: 100%;
  text-align: center;
  border: 0;
  font-weight: 700;
  color: var(--color-primary);
}

.checkout-layout,
.checkout-return-grid {
  display: grid;
  gap: var(--space-6);
  align-items: start;
}

.checkout-main {
  display: grid;
  gap: var(--space-6);
}

.checkout-sidebar {
  display: grid;
  gap: var(--space-6);
}

.checkout-summary-card,
.checkout-return-card {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

.checkout-summary-items {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.checkout-line-item {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: var(--color-white);
}

.checkout-summary-totals {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.payment-options {
  display: grid;
  gap: var(--space-3);
}

.payment-option {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-4);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: var(--color-white);
}

.payment-option input {
  margin-top: 5px;
}

.payment-option small {
  display: block;
  color: var(--color-gray-500);
  margin-top: 4px;
}

.checkout-status-pills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

@media (min-width: 1024px) {
  .checkout-layout,
  .checkout-return-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(320px, 420px);
  }
}

@media (max-width: 900px) {
  .product-purchase-box__actions,
  .product-card-public__actions {
    grid-template-columns: 1fr;
  }

  .checkout-summary-card,
  .checkout-return-card {
    position: static;
  }
}

@media (max-width: 640px) {
  .checkout-line-item {
    flex-direction: column;
  }

  .qty-control {
    grid-template-columns: 42px minmax(64px, 1fr) 42px;
  }
}