/* ===== MODERN MOBILE-FIRST CSS ===== */

/* CSS Custom Properties */
:root {
  /* Colors */
  --primary-color: #007BFF;
  --accent-color: #FF6600;
  --white-color: #FFFFFF;
  --dark-color: #1a1a1a;
  --gray-color: #6c757d;
  --light-gray: #f8f9fa;
  --border-color: #e9ecef;
  
  /* Gradients */
  --primary-gradient: linear-gradient(135deg, #007BFF 0%, #0056b3 100%);
  --accent-gradient: linear-gradient(135deg, #FF6600 0%, #e55a00 100%);
  --hero-gradient: linear-gradient(135deg, rgba(0, 123, 255, 0.9) 0%, rgba(255, 102, 0, 0.8) 100%);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --border-radius: 0.75rem;
  --border-radius-sm: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--white-color);
  overflow-x: hidden;
}

/* ===== LOADING SCREEN ===== */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--white-color);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease-in-out;
}

.loading-content {
  text-align: center;
}

.loading-logo {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-lg);
  animation: pulse 2s infinite;
}

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

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

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

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.header.scroll-header {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.nav {
  height: 70px;
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--dark-color);
  font-weight: 600;
}

.nav__logo-img {
  width: 40px;
  height: 40px;
}

.nav__logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.nav__menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: var(--white-color);
  padding: var(--spacing-3xl) var(--spacing-xl);
  transition: right var(--transition-base);
  box-shadow: var(--shadow-xl);
}

.nav__menu.show-menu {
  right: 0;
}

.nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.nav__link {
  text-decoration: none;
  color: var(--dark-color);
  font-weight: 500;
  font-size: var(--font-size-lg);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav__link.active-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-color);
  border-radius: 2px;
}

.nav__close {
  position: absolute;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  font-size: var(--font-size-2xl);
  color: var(--dark-color);
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary-color);
  color: var(--white-color);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-weight: 500;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.nav__cta:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

.nav__toggle {
  font-size: var(--font-size-xl);
  color: var(--dark-color);
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: 500;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 48px;
  justify-content: center;
}

.btn--primary {
  background: var(--primary-gradient);
  color: var(--white-color);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

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

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

/* ===== MAIN CONTENT ===== */
.main {
  padding-top: 70px;
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  background: var(--hero-gradient);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('technology_background.jpg') center/cover;
  opacity: 0.1;
  z-index: -1;
}

.hero__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  display: grid;
  gap: var(--spacing-3xl);
  align-items: center;
  min-height: calc(100vh - 70px);
}

.hero__content {
  text-align: center;
  color: var(--white-color);
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

.hero__title-main {
  display: block;
}

.hero__title-accent {
  display: block;
  background: linear-gradient(45deg, #FFD700, #FF6600);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  opacity: 0.9;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.hero__stat {
  text-align: center;
}

.hero__stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.hero__stat-label {
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

.hero__visual {
  display: none;
}

.hero__scroll {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
}

.hero__scroll-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  color: var(--white-color);
  border-radius: 50%;
  text-decoration: none;
  animation: bounce 2s infinite;
}

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

/* ===== SECTIONS ===== */
.services,
.portfolio,
.testimonials,
.contact {
  padding: var(--spacing-3xl) 0;
}

.services__container,
.portfolio__container,
.testimonials__container,
.contact__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section__subtitle {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--light-gray);
  color: var(--primary-color);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--dark-color);
}

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

/* ===== SERVICES SECTION ===== */
.services {
  background: var(--light-gray);
}

.services__grid {
  display: grid;
  gap: var(--spacing-xl);
}

.service__card {
  background: var(--white-color);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.service__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service__card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.service__card:hover::before {
  transform: scaleX(1);
}

.service__icon {
  width: 80px;
  height: 80px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-lg);
  font-size: var(--font-size-2xl);
  color: var(--white-color);
}

.service__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--dark-color);
}

.service__description {
  color: var(--gray-color);
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.service__features {
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.service__features li {
  padding: var(--spacing-xs) 0;
  color: var(--gray-color);
  font-size: var(--font-size-sm);
  position: relative;
  padding-left: var(--spacing-lg);
}

.service__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: 600;
}

.service__price {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary-color);
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio__grid {
  display: grid;
  gap: var(--spacing-xl);
}

.portfolio__item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.portfolio__item:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.portfolio__image {
  position: relative;
  overflow: hidden;
}

.portfolio__img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio__item:hover .portfolio__img {
  transform: scale(1.1);
}

.portfolio__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 123, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.portfolio__item:hover .portfolio__overlay {
  opacity: 1;
}

.portfolio__content {
  text-align: center;
  color: var(--white-color);
  padding: var(--spacing-lg);
}

.portfolio__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.portfolio__description {
  margin-bottom: var(--spacing-md);
  opacity: 0.9;
}

.portfolio__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

.portfolio__tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
  background: var(--light-gray);
}

.testimonials__grid {
  display: grid;
  gap: var(--spacing-xl);
}

.testimonial__card {
  background: var(--white-color);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.testimonial__rating {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  color: #FFD700;
}

.testimonial__text {
  font-size: var(--font-size-lg);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  color: var(--gray-color);
  font-style: italic;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial__avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial__name {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--dark-color);
  margin-bottom: var(--spacing-xs);
}

.testimonial__position {
  font-size: var(--font-size-sm);
  color: var(--gray-color);
}

/* ===== CONTACT SECTION ===== */
.contact__content {
  display: grid;
  gap: var(--spacing-3xl);
}

.contact__info {
  display: grid;
  gap: var(--spacing-xl);
}

.contact__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--light-gray);
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-base);
}

.contact__item:hover {
  background: var(--white-color);
  box-shadow: var(--shadow-md);
}

.contact__icon {
  width: 60px;
  height: 60px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--white-color);
  flex-shrink: 0;
}

.contact__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--dark-color);
}

.contact__link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.contact__text {
  color: var(--gray-color);
}

/* ===== FORM STYLES ===== */
.contact__form {
  background: var(--white-color);
  padding: var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.form__group {
  margin-bottom: var(--spacing-lg);
}

.form__input {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
  background: var(--white-color);
}

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

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

/* ===== FOOTER ===== */
.footer {
  background: var(--dark-color);
  color: var(--white-color);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.footer__brand {
  text-align: center;
}

.footer__logo {
  width: 60px;
  height: 60px;
  margin-bottom: var(--spacing-md);
}

.footer__description {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-lg);
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

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

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white-color);
  border-radius: 50%;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--primary-color);
  transform: translateY(-2px);
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  text-align: center;
}

.footer__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: var(--spacing-sm);
}

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  text-align: center;
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
}

/* ===== FLOATING ELEMENTS ===== */
.whatsapp-float {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-md);
  z-index: var(--z-fixed);
}

.whatsapp-float__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: var(--white-color);
  border-radius: 50%;
  text-decoration: none;
  font-size: var(--font-size-2xl);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float__link:hover {
  transform: scale(1.1);
}

@keyframes pulse-whatsapp {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.back-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  left: var(--spacing-md);
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: var(--white-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: var(--z-fixed);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent-color);
  transform: translateY(-2px);
}

/* ===== RESPONSIVE DESIGN ===== */

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
  
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .contact__content {
    grid-template-columns: 1fr 1fr;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  :root {
    --font-size-4xl: 3rem;
    --font-size-5xl: 4rem;
  }
  
  .nav__menu {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    padding: 0;
    box-shadow: none;
  }
  
  .nav__list {
    flex-direction: row;
    gap: var(--spacing-xl);
  }
  
  .nav__close,
  .nav__toggle {
    display: none;
  }
  
  .hero__container {
    grid-template-columns: 1fr 1fr;
    text-align: left;
  }
  
  .hero__content {
    text-align: left;
  }
  
  .hero__description {
    margin-left: 0;
    margin-right: 0;
  }
  
  .hero__visual {
    display: block;
    position: relative;
  }
  
  .hero__image {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
  }
  
  .hero__img {
    width: 100%;
    height: 400px;
    object-fit: cover;
  }
  
  .hero__floating-card {
    position: absolute;
    background: var(--white-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    animation: float 3s ease-in-out infinite;
  }
  
  .hero__floating-card--1 {
    top: 20%;
    right: -20px;
    animation-delay: 0s;
  }
  
  .hero__floating-card--2 {
    bottom: 30%;
    left: -20px;
    animation-delay: 1s;
  }
  
  .hero__floating-card--3 {
    top: 60%;
    right: 20%;
    animation-delay: 2s;
  }
  
  .hero__floating-card i {
    color: var(--primary-color);
  }
  
  @keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
  }
  
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer__content {
    grid-template-columns: 1fr 1fr;
    text-align: left;
  }
  
  .footer__brand {
    text-align: left;
  }
  
  .footer__description {
    margin-left: 0;
    margin-right: 0;
  }
  
  .footer__social {
    justify-content: flex-start;
  }
  
  .footer__links {
    text-align: left;
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .services__grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .portfolio__grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .contact__content {
    grid-template-columns: 1fr 2fr;
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  .hero__title {
    font-size: var(--font-size-5xl);
  }
  
  .section__title {
    font-size: var(--font-size-4xl);
  }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.fade-in.animate {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.6s ease-out;
}

.slide-in-left.animate {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.6s ease-out;
}

.slide-in-right.animate {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s ease-out;
}

.scale-in.animate {
  opacity: 1;
  transform: scale(1);
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
.btn:focus,
.nav__link:focus,
.form__input:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --gray-color: #000000;
  }
}