/* ===== VARIABLES CSS ===== */
:root {
  --header-height: 4rem;

  /* ===== Colors ===== */
  --primary-color: #FFD700;
  --primary-color-dark: #FFC107;
  --secondary-color: #1A1A1A;
  --accent-color: #FF6B00;
  --text-color: #2A2A2A;
  --text-color-light: #6B6B6B;
  --white-color: #FFFFFF;
  --light-gray: #F8F9FA;
  --border-color: #E5E5E5;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;

  /* ===== Font and Typography ===== */
  --body-font: 'Inter', sans-serif;
  --biggest-font-size: 3.5rem;
  --h1-font-size: 2.25rem;
  --h2-font-size: 1.75rem;
  --h3-font-size: 1.25rem;
  --normal-font-size: 1rem;
  --small-font-size: 0.875rem;
  --smaller-font-size: 0.75rem;

  /* ===== Font Weight ===== */
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semi-bold: 600;
  --font-bold: 700;
  --font-extra-bold: 800;

  /* ===== Margins Bottom ===== */
  --mb-0-25: 0.25rem;
  --mb-0-5: 0.5rem;
  --mb-0-75: 0.75rem;
  --mb-1: 1rem;
  --mb-1-25: 1.25rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  --mb-3: 3rem;

  /* ===== Z Index ===== */
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;

  /* ===== Transitions ===== */
  --transition: all 0.3s ease;
  --transition-fast: all 0.2s ease;
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */
@media screen and (max-width: 992px) {
  :root {
    --biggest-font-size: 2.75rem;
    --h1-font-size: 1.75rem;
    --h2-font-size: 1.5rem;
    --h3-font-size: 1.125rem;
    --normal-font-size: 0.938rem;
    --small-font-size: 0.813rem;
    --smaller-font-size: 0.75rem;
  }
}

/* ===== BASE ===== */
* {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0 0 var(--header-height) 0;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--white-color);
  color: var(--text-color);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  color: var(--text-color);
  font-weight: var(--font-semi-bold);
  line-height: 1.2;
}

ul {
  list-style: none;
}

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

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

/* ===== REUSABLE CSS CLASSES ===== */
.container {
  max-width: 1200px;
  margin-left: var(--mb-1-5);
  margin-right: var(--mb-1-5);
}

.grid {
  display: grid;
}

.section {
  padding: 5rem 0 2rem;
}

.section__title {
  font-size: var(--h2-font-size);
  margin-bottom: var(--mb-0-75);
  text-align: center;
  color: var(--secondary-color);
  font-weight: var(--font-bold);
}

.section__subtitle {
  font-size: var(--normal-font-size);
  color: var(--text-color-light);
  text-align: center;
  margin-bottom: var(--mb-2-5);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section__header {
  margin-bottom: var(--mb-3);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 0.5rem;
  font-weight: var(--font-medium);
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-size: var(--normal-font-size);
  gap: 0.5rem;
}

.btn--primary {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
}

.btn--primary:hover {
  background-color: var(--primary-color-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.4);
}

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

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

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

.btn--secondary:hover {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  transform: translateY(-2px);
}

.btn--success {
  background-color: #25D366;
  color: var(--white-color);
  border: 2px solid #25D366;
}

.btn--success:hover {
  background-color: #20B858;
  border-color: #20B858;
  transform: translateY(-2px);
}

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

.btn--secondary:hover {
  background-color: #2A2A2A;
  border-color: #2A2A2A;
  transform: translateY(-2px);
}

.btn--small {
  padding: 0.5rem 1rem;
  font-size: var(--small-font-size);
}

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

/* ===== HEADER & NAV ===== */
.header {
  width: 100%;
  position: fixed;
  bottom: 0;
  left: 0;
  z-index: var(--z-fixed);
  background-color: var(--white-color);
  box-shadow: 0 -1px 4px var(--shadow-color);
  transition: var(--transition);
}

.nav {
  max-width: 968px;
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: var(--font-bold);
  color: var(--secondary-color);
  transition: transform 0.3s ease;
}

.nav__logo:hover {
  transform: scale(1.05);
}

.nav__logo-img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.nav__logo-text {
  font-size: var(--normal-font-size);
  line-height: 1.2;
  font-weight: var(--font-semi-bold);
}

.nav__logo-text strong {
  color: var(--primary-color);
  font-weight: var(--font-bold);
}

.nav__menu {
  position: fixed;
  bottom: -100%;
  left: 0;
  width: 100%;
  background-color: var(--white-color);
  padding: 2rem 1.5rem 4rem;
  box-shadow: 0 -1px 4px var(--shadow-color);
  border-radius: 1.5rem 1.5rem 0 0;
  transition: var(--transition);
}

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

.nav__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: var(--small-font-size);
  color: var(--text-color);
  font-weight: var(--font-medium);
  transition: var(--transition);
}

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

.nav__icon {
  font-size: 1.2rem;
}

.nav__close {
  position: absolute;
  right: 1.3rem;
  bottom: 0.5rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary-color);
}

.nav__close:hover {
  color: var(--primary-color-dark);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav__quote-btn {
  display: none;
}

.nav__toggle {
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--secondary-color);
}

/* Show menu */
.show-menu {
  bottom: 0;
}

/* Active link */
.active-link {
  color: var(--primary-color) !important;
}

/* Change background header */
.scroll-header {
  bottom: 0;
  background-color: var(--white-color);
  box-shadow: 0 -1px 4px var(--shadow-color);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--light-gray) 0%, var(--white-color) 100%);
  padding-top: var(--header-height);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero__container {
  padding: 2rem 0;
}

.hero__content {
  text-align: center;
  margin-bottom: var(--mb-2-5);
}

.hero__title {
  font-size: var(--biggest-font-size);
  font-weight: var(--font-extra-bold);
  margin-bottom: var(--mb-1);
  color: var(--secondary-color);
}

.hero__title-highlight {
  color: var(--primary-color);
  text-shadow: 2px 2px 4px rgba(255, 215, 0, 0.3);
}

.hero__description {
  font-size: var(--normal-font-size);
  color: var(--text-color-light);
  margin-bottom: var(--mb-2);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: var(--mb-3);
  flex-wrap: wrap;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  max-width: 500px;
  margin: 0 auto;
}

.hero__stat {
  text-align: center;
  padding: 1rem;
  background-color: var(--white-color);
  border-radius: 0.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.hero__stat:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.hero__stat-number {
  display: block;
  font-size: var(--h2-font-size);
  font-weight: var(--font-bold);
  color: var(--primary-color);
  margin-bottom: var(--mb-0-25);
}

.hero__stat-label {
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

.hero__image {
  position: relative;
  justify-self: center;
  margin-top: var(--mb-2);
}

.hero__image-bg {
  position: absolute;
  top: -2rem;
  left: -2rem;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
  border-radius: 1rem;
  z-index: -1;
  opacity: 0.1;
}

.hero__img {
  width: 100%;
  max-width: 500px;
  border-radius: 1rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

/* ===== PRODUCTS ===== */
.products {
  background-color: var(--light-gray);
}

.products__controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--mb-2);
  flex-wrap: wrap;
}

.products__search {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.search__input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 3rem;
  border: 2px solid var(--border-color);
  border-radius: 2rem;
  font-size: var(--normal-font-size);
  transition: var(--transition);
}

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

.search__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-color-light);
  font-size: 1.2rem;
}

.products__sort {
  min-width: 200px;
}

.sort__select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: var(--normal-font-size);
  background-color: var(--white-color);
  cursor: pointer;
  transition: var(--transition);
}

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

.products__categories {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: var(--mb-3);
  flex-wrap: wrap;
}

.category__btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--white-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  border-radius: 2rem;
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.category__btn:hover,
.category__btn.active {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border-color: var(--primary-color);
}

.category__count {
  font-size: var(--smaller-font-size);
  opacity: 0.8;
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: var(--mb-3);
}

.product__card {
  background-color: var(--white-color);
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  cursor: pointer;
}

.product__card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.product__image {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.product__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.product__card:hover .product__img {
  transform: scale(1.1);
}

.product__badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: var(--smaller-font-size);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  background-color: var(--success-color);
  color: var(--white-color);
}

.product__badge.usado {
  background-color: var(--warning-color);
  color: var(--secondary-color);
}

.product__image-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 1rem;
  opacity: 0;
  transition: var(--transition);
}

.product__card:hover .product__image-nav {
  opacity: 1;
}

.product__nav-btn {
  width: 35px;
  height: 35px;
  background-color: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
  color: var(--secondary-color);
}

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

.product__image-dots {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}

.product__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background-color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
}

.product__dot.active {
  background-color: var(--primary-color);
}

.product__content {
  padding: 1.5rem;
}

.product__title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-0-5);
  color: var(--secondary-color);
}

.product__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-1);
  font-size: var(--small-font-size);
  line-height: 1.5;
}

.product__specs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--mb-1);
  flex-wrap: wrap;
}

.spec {
  padding: 0.25rem 0.75rem;
  background-color: var(--light-gray);
  border-radius: 1rem;
  font-size: var(--smaller-font-size);
  color: var(--text-color);
}

.product__info {
  margin-bottom: var(--mb-1-5);
}

.product__details {
  display: flex;
  gap: 1rem;
  margin-bottom: var(--mb-0-5);
  flex-wrap: wrap;
}

.product__year,
.product__hours,
.product__location {
  font-size: var(--smaller-font-size);
  color: var(--text-color-light);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.product__year::before {
  content: '📅';
}

.product__hours::before {
  content: '⏱️';
}

.product__location::before {
  content: '📍';
}

.product__financing {
  font-size: var(--smaller-font-size);
  color: var(--success-color);
  font-weight: var(--font-medium);
}

.product__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.product__price {
  font-size: var(--h3-font-size);
  font-weight: var(--font-bold);
  color: var(--primary-color);
}

.product__actions {
  display: flex;
  gap: 0.5rem;
}

.product__btn-info,
.product__btn-quote {
  padding: 0.5rem 1rem;
  font-size: var(--smaller-font-size);
}

/* Loading and Error States */
.loading-products {
  text-align: center;
  padding: 4rem 2rem;
  grid-column: 1 / -1;
}

.loader {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto var(--mb-1);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.no-products,
.error-message {
  text-align: center;
  padding: 4rem 2rem;
  grid-column: 1 / -1;
}

.no-products i,
.error-message i {
  font-size: 3rem;
  color: var(--text-color-light);
  margin-bottom: var(--mb-1);
}

.no-products p,
.error-message p {
  color: var(--text-color-light);
  margin-bottom: var(--mb-1-5);
}

/* Product Modal */
.product-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.product-modal.show {
  opacity: 1;
  visibility: visible;
}

.modal__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal__content {
  background-color: var(--white-color);
  border-radius: 1rem;
  max-width: 1000px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border: none;
  background-color: var(--light-gray);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
}

.modal__close:hover {
  background-color: var(--danger-color);
  color: var(--white-color);
}

.modal__header {
  padding: 2rem 2rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.modal__title {
  font-size: var(--h2-font-size);
  margin-bottom: var(--mb-0-5);
  color: var(--secondary-color);
}

.modal__price {
  font-size: var(--h3-font-size);
  font-weight: var(--font-bold);
  color: var(--primary-color);
}

.modal__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding: 2rem;
}

/* Gallery */
.modal__gallery {
  grid-column: 1;
}

.gallery__main {
  position: relative;
  margin-bottom: var(--mb-1);
  border-radius: 0.5rem;
  overflow: hidden;
}

.gallery__main-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.gallery__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1.2rem;
}

.gallery__nav:hover {
  background-color: var(--primary-color);
  color: var(--secondary-color);
}

.gallery__nav-prev {
  left: 1rem;
}

.gallery__nav-next {
  right: 1rem;
}

.gallery__thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.gallery__thumb {
  width: 100%;
  height: 60px;
  object-fit: cover;
  border-radius: 0.25rem;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

/* Modal Info */
.modal__info {
  grid-column: 2;
}

.product__meta {
  display: flex;
  gap: 0.5rem;
  margin-bottom: var(--mb-1-5);
  flex-wrap: wrap;
}

.meta__badge {
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: var(--smaller-font-size);
  font-weight: var(--font-medium);
  text-transform: uppercase;
}

.meta__badge--nuevo {
  background-color: var(--success-color);
  color: var(--white-color);
}

.meta__badge--usado {
  background-color: var(--warning-color);
  color: var(--secondary-color);
}

.meta__year,
.meta__hours,
.meta__location {
  padding: 0.25rem 0.75rem;
  background-color: var(--light-gray);
  border-radius: 1rem;
  font-size: var(--smaller-font-size);
}

.product__description {
  margin-bottom: var(--mb-2);
  line-height: 1.6;
}

.product__specifications,
.product__features {
  margin-bottom: var(--mb-2);
}

.product__specifications h4,
.product__features h4 {
  margin-bottom: var(--mb-1);
  color: var(--secondary-color);
}

.specs__list,
.features__list {
  padding-left: 0;
}

.specs__list li,
.features__list li {
  margin-bottom: var(--mb-0-5);
  padding-left: 1.5rem;
  position: relative;
}

.specs__list li::before {
  content: '🔧';
  position: absolute;
  left: 0;
}

.features__list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding-left: 0;
}

.features__list li i {
  color: var(--success-color);
  margin-top: 0.125rem;
}

.financing__info {
  background-color: var(--light-gray);
  padding: 1rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--success-color);
  font-weight: var(--font-medium);
}

.modal__footer {
  padding: 1rem 2rem 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

.modal__btn-contact,
.modal__btn-quote {
  min-width: 150px;
}

.products__actions {
  text-align: center;
}

/* ===== SERVICES ===== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.service__card {
  background-color: var(--white-color);
  padding: 2rem 1.5rem;
  border-radius: 1rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
  border-top: 4px solid var(--primary-color);
}

.service__card:hover {
  transform: translateY(-10px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.service__icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--mb-1);
  font-size: 2rem;
  color: var(--secondary-color);
}

.service__title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-1);
  color: var(--secondary-color);
}

.service__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-1-5);
}

.service__features {
  text-align: left;
}

.service__features li {
  color: var(--text-color);
  margin-bottom: var(--mb-0-5);
  position: relative;
  padding-left: 1.5rem;
}

.service__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: var(--font-bold);
}

/* ===== PARTS ===== */
.parts {
  background-color: var(--light-gray);
}

.parts__content {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.parts__features {
  margin: var(--mb-2) 0;
}

.parts__feature {
  display: flex;
  gap: 1rem;
  margin-bottom: var(--mb-1-5);
  align-items: flex-start;
}

.parts__feature i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 0.25rem;
}

.parts__feature h4 {
  margin-bottom: var(--mb-0-25);
  color: var(--secondary-color);
}

.parts__feature p {
  color: var(--text-color-light);
  font-size: var(--small-font-size);
}

.parts__img {
  border-radius: 1rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

/* ===== ABOUT ===== */
.about__content {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.about__img {
  border-radius: 1rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.about__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-2);
}

.about__values {
  display: grid;
  gap: 1.5rem;
  margin-bottom: var(--mb-2);
}

.about__value h4 {
  color: var(--primary-color);
  margin-bottom: var(--mb-0-5);
}

.about__value p {
  color: var(--text-color-light);
  font-size: var(--small-font-size);
}

.about__certifications h4 {
  margin-bottom: var(--mb-1);
  color: var(--secondary-color);
}

.cert__logos {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.cert__logo {
  height: 40px;
  opacity: 0.7;
  transition: var(--transition);
}

.cert__logo:hover {
  opacity: 1;
}

/* ===== CONTACT ===== */
.contact {
  background-color: var(--light-gray);
}

.contact__content {
  display: grid;
  gap: 3rem;
}

.contact__info {
  display: grid;
  gap: 1.5rem;
}

.contact__card {
  background-color: var(--white-color);
  padding: 2rem 1.5rem;
  border-radius: 1rem;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact__card i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: var(--mb-1);
}

.contact__card h3 {
  margin-bottom: var(--mb-0-5);
  color: var(--secondary-color);
}

.contact__card p {
  color: var(--text-color-light);
  font-size: var(--small-font-size);
}

/* ===== FORM ===== */
.contact__form {
  background-color: var(--white-color);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  display: grid;
  gap: 1.5rem;
}

.form__group {
  position: relative;
}

.form__group--full {
  grid-column: 1 / -1;
}

.form__input {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: var(--normal-font-size);
  font-family: var(--body-font);
  transition: var(--transition);
  background-color: var(--white-color);
}

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

.form__input:not(:placeholder-shown) + .form__label,
.form__input:focus + .form__label {
  top: -0.5rem;
  left: 0.75rem;
  background-color: var(--white-color);
  color: var(--primary-color);
  font-size: var(--smaller-font-size);
  padding: 0 0.5rem;
}

.form__label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  color: var(--text-color-light);
  transition: var(--transition);
  pointer-events: none;
}

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

/* ===== FOOTER ===== */
.footer {
  background-color: var(--secondary-color);
  color: var(--white-color);
  padding: 3rem 0 1rem;
}

.footer__content {
  display: grid;
  gap: 2rem;
  margin-bottom: var(--mb-2);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--mb-1);
}

.footer__logo-img {
  width: 55px;
  height: 55px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.footer__logo-text {
  font-size: var(--h3-font-size);
  line-height: 1.2;
  font-weight: var(--font-semi-bold);
  color: var(--white-color);
}

.footer__logo-text strong {
  color: var(--primary-color);
  font-weight: var(--font-bold);
}

.footer__description {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--mb-1-5);
}

.footer__social {
  display: flex;
  gap: 1rem;
}

.footer__social-link {
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition);
}

.footer__social-link:hover {
  background-color: var(--primary-color-dark);
  transform: translateY(-3px);
}

.footer__title {
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-1);
  color: var(--primary-color);
}

.footer__links {
  display: grid;
  gap: 0.5rem;
}

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

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

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--mb-0-5);
  color: rgba(255, 255, 255, 0.7);
}

.footer__contact-item i {
  color: var(--primary-color);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--mb-1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__copy {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--small-font-size);
}

.footer__legal {
  display: flex;
  gap: 2rem;
}

.footer__legal-link {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--small-font-size);
  transition: var(--transition);
}

.footer__legal-link:hover {
  color: var(--primary-color);
}

/* ===== SCROLL UP ===== */
.scroll-up {
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background-color: var(--primary-color);
  color: var(--secondary-color);
  padding: 0.5rem;
  border-radius: 0.4rem;
  z-index: var(--z-tooltip);
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-up:hover {
  background-color: var(--primary-color-dark);
  transform: translateY(-3px);
}

/* Show scroll */
.show-scroll {
  bottom: 2rem;
}

/* ===== MEDIA QUERIES ===== */
/* For small devices */
@media screen and (max-width: 350px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }

  .nav__menu {
    padding: 2rem 0.25rem 4rem;
  }

  .nav__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .hero__actions {
    flex-direction: column;
  }

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

  .products__grid {
    grid-template-columns: 1fr;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .contact__form {
    padding: 1rem;
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* For medium devices */
@media screen and (min-width: 568px) {
  .hero__content,
  .parts__content,
  .about__content,
  .contact__content {
    grid-template-columns: repeat(2, 1fr);
    align-items: center;
  }

  .hero__content {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

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

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

@media screen and (min-width: 768px) {
  .container {
    margin-left: auto;
    margin-right: auto;
  }

  body {
    margin: 0;
  }

  .section {
    padding: 6rem 0 2rem;
  }

  .nav {
    height: calc(var(--header-height) + 1.5rem);
  }

  .nav__logo-img {
    width: 70px;
    height: 70px;
  }

  .nav__logo-text {
    font-size: var(--h3-font-size);
  }

  .nav__quote-btn {
    display: inline-flex;
  }

  .nav__list {
    display: flex;
    gap: 2rem;
  }

  .nav__menu {
    position: static;
    width: auto;
    background: none;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
  }

  .nav__close,
  .nav__toggle {
    display: none;
  }

  .header {
    top: 0;
    bottom: initial;
    box-shadow: 0 1px 4px var(--shadow-color);
  }

  .hero {
    padding-top: calc(var(--header-height) + 2rem);
  }

  .hero__container {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }

  .hero__content {
    text-align: left;
  }

  .hero__actions {
    justify-content: flex-start;
  }

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

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

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

/* For large devices */
@media screen and (min-width: 992px) {
  .container {
    margin-left: auto;
    margin-right: auto;
  }

  .section {
    padding: 8rem 0 1rem;
  }

  .nav__logo-img {
    width: 75px;
    height: 75px;
  }

  .nav__logo-text {
    font-size: var(--h2-font-size);
  }

  .footer__logo-img {
    width: 65px;
    height: 65px;
  }

  .hero__container {
    gap: 6rem;
  }

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

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

  .parts__content,
  .about__content,
  .contact__content {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }

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

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* ===== LOADING STATES ===== */
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  border: 2px solid var(--primary-color);
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  transform: translate(-50%, -50%);
}

@keyframes spin {
  0% { transform: translate(-50%, -50%) rotate(0deg); }
  100% { transform: translate(-50%, -50%) rotate(360deg); }
}