/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ===== VARIABLES CSS ===== */
:root {
  /* Colors */
  --color-primary: #000000;
  --color-secondary: #ffffff;
  --color-accent: #333333;
  --color-light-gray: #f5f5f5;
  --color-medium-gray: #999999;
  --color-dark-gray: #1a1a1a;
  --color-overlay: rgba(0, 0, 0, 0.7);
  --color-overlay-light: rgba(0, 0, 0, 0.5);
  --color-border: #e0e0e0;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-family: 'Inter', 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;
  --font-size-6xl: 3.75rem;

  /* Font Weight */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* 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;
  --spacing-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* 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);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

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

  /* Container */
  --container-max-width: 1200px;
  --container-padding: 1rem;

  /* Header */
  --header-height: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  color: var(--color-secondary);
  font-weight: var(--font-semibold);
  line-height: 1.2;
}

ul {
  list-style: none;
}

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

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

input, button, textarea, select {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  outline: none;
}

/* ===== REUSABLE CSS CLASSES ===== */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--spacing-4xl) 0;
}

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

.section__subtitle {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-semibold);
  color: var(--color-medium-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.section__title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-bold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
}

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

.button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 2px solid transparent;
}

.button--primary {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  border-color: var(--color-secondary);
}

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

.button--outline {
  background-color: transparent;
  color: var(--color-secondary);
  border-color: var(--color-secondary);
}

.button--outline:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.scroll-header {
  background-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

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

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

.nav__logo-img {
  width: 120px;
  height: auto;
  filter: brightness(0) invert(1);
}

.nav__menu {
  display: flex;
  align-items: center;
}

.nav__list {
  display: flex;
  gap: var(--spacing-xl);
}

.nav__link {
  position: relative;
  font-size: var(--font-size-base);
  font-weight: var(--font-medium);
  color: var(--color-secondary);
  transition: all var(--transition-normal);
  padding: var(--spacing-sm) 0;
}

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

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

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

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

.nav__cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-secondary);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-weight: var(--font-medium);
  transition: all var(--transition-normal);
}

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

.nav__toggle,
.nav__close {
  display: none;
  font-size: var(--font-size-xl);
  color: var(--color-secondary);
  cursor: pointer;
}

/* ===== HOME ===== */
.home {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.home__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

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

.home__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.6) 100%);
  z-index: -1;
}

.home__container {
  position: relative;
  z-index: 1;
}

.home__content {
  max-width: 600px;
}

.home__subtitle {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-semibold);
  color: var(--color-medium-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-lg);
}

.home__title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-extrabold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.1;
}

.home__title-accent {
  background: linear-gradient(135deg, #ffffff 0%, #cccccc 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.home__description {
  font-size: var(--font-size-lg);
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.7;
}

.home__buttons {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

/* ===== STATS ===== */
.stats {
  background-color: var(--color-dark-gray);
  padding: var(--spacing-2xl) 0;
}

.stats__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  text-align: center;
}

.stats__number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-extrabold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

.stats__label {
  font-size: var(--font-size-base);
  color: var(--color-medium-gray);
  font-weight: var(--font-medium);
}

/* ===== SERVICES ===== */
.services {
  background-color: var(--color-primary);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.service__card {
  position: relative;
  height: 400px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.service__card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: var(--shadow-2xl);
  border-color: rgba(255, 255, 255, 0.3);
}

.service__video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

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

.service__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 100%);
  z-index: 2;
}

.service__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-xl);
  z-index: 3;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
}

.service__icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.service__card:hover .service__icon {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--color-secondary);
  transform: scale(1.1);
}

.service__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-bold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

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

.service__features {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.service__feature {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: var(--color-secondary);
  font-weight: var(--font-medium);
}

/* ===== ABOUT ===== */
.about {
  background-color: var(--color-dark-gray);
}

.about__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.about__description {
  font-size: var(--font-size-lg);
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.7;
}

.about__features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.about__feature {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.about__feature-icon {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  color: var(--color-secondary);
  flex-shrink: 0;
}

.about__feature-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

.about__feature-description {
  color: var(--color-medium-gray);
  line-height: 1.6;
}

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

.about__image-container {
  position: relative;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__tech-icon {
  font-size: 4rem;
  color: var(--color-secondary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.8;
  }
}

/* ===== SOLUTIONS ===== */
.solutions {
  background-color: var(--color-primary);
}

.solutions__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.solution__item {
  padding: var(--spacing-2xl);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: all var(--transition-normal);
}

.solution__item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.solution__icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  color: var(--color-secondary);
  margin: 0 auto var(--spacing-lg);
  transition: all var(--transition-normal);
}

.solution__item:hover .solution__icon {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--color-secondary);
  transform: scale(1.1);
}

.solution__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
}

.solution__description {
  color: var(--color-medium-gray);
  line-height: 1.6;
}

/* ===== PROJECTS ===== */
.projects {
  background-color: var(--color-dark-gray);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.project__card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.project__card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.project__image {
  height: 200px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-4xl);
  color: var(--color-secondary);
}

.project__content {
  padding: var(--spacing-xl);
}

.project__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
}

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

.project__tags {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.project__tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  color: var(--color-secondary);
  font-weight: var(--font-medium);
}

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

.contact__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
}

.contact__description {
  font-size: var(--font-size-lg);
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.7;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.contact__info-item {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
}

.contact__info-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  color: var(--color-secondary);
  flex-shrink: 0;
}

.contact__info-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}

.contact__info-text {
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-xs);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact__form-group {
  display: flex;
  flex-direction: column;
}

.contact__input {
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-secondary);
  font-size: var(--font-size-base);
  transition: all var(--transition-normal);
}

.contact__input::placeholder {
  color: var(--color-medium-gray);
}

.contact__input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.1);
}

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

.contact__button {
  align-self: flex-start;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-dark-gray);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-4xl);
  margin-bottom: var(--spacing-2xl);
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.footer__logo-img {
  width: 80px;
  height: auto;
  filter: brightness(0) invert(1);
}

.footer__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-bold);
  color: var(--color-secondary);
}

.footer__description {
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

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

.footer__social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  transition: all var(--transition-normal);
}

.footer__social-link:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: var(--color-secondary);
  transform: translateY(-2px);
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
}

.footer__group-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-semibold);
  color: var(--color-secondary);
  margin-bottom: var(--spacing-lg);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__link {
  color: var(--color-medium-gray);
  transition: color var(--transition-normal);
}

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

.footer__contact {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-medium-gray);
  margin-bottom: var(--spacing-sm);
}

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

.footer__copy {
  color: var(--color-medium-gray);
}

.footer__copy i {
  color: #ef4444;
}

/* ===== SCROLL UP ===== */
.scrollup {
  position: fixed;
  right: var(--spacing-lg);
  bottom: -20%;
  background-color: var(--color-secondary);
  color: var(--color-primary);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  z-index: var(--z-tooltip);
  transition: all var(--transition-normal);
  opacity: 0.8;
}

.scrollup:hover {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
  transform: translateY(-3px);
  opacity: 1;
}

.show-scroll {
  bottom: var(--spacing-lg);
}

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
  position: fixed;
  right: var(--spacing-lg);
  bottom: calc(var(--spacing-lg) + 70px);
  background-color: #25d366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-2xl);
  z-index: var(--z-tooltip);
  transition: all var(--transition-normal);
  animation: pulse-whatsapp 2s infinite;
}

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

@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);
  }
}

/* ===== ANIMATIONS ===== */
.animate {
  animation: fadeInUp 0.8s ease-out;
}

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

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 968px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
  }

  .container {
    padding: 0 var(--spacing-lg);
  }

  .section {
    padding: var(--spacing-3xl) 0;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--color-primary);
    padding: var(--spacing-4xl) var(--spacing-xl);
    transition: right var(--transition-normal);
  }

  .nav__list {
    flex-direction: column;
    gap: var(--spacing-2xl);
  }

  .nav__link {
    font-size: var(--font-size-lg);
  }

  .nav__close {
    display: block;
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
  }

  .nav__toggle {
    display: block;
  }

  .nav__cta {
    display: none;
  }

  .show-menu {
    right: 0;
  }

  .home__title {
    font-size: var(--font-size-4xl);
  }

  .home__buttons {
    flex-direction: column;
    align-items: flex-start;
  }

  .home__tech-elements {
    display: none;
  }

  .stats__content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }

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

  .about__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .about__image {
    order: -1;
  }

  .contact__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .footer__content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

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

@media screen and (max-width: 576px) {
  .stats__content {
    grid-template-columns: 1fr;
  }

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

  .service__card {
    min-height: 350px;
  }

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

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

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

  .home__buttons {
    width: 100%;
  }

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

/* ===== LOADING STATES ===== */
.loaded {
  animation: fadeIn 0.5s ease-in;
}

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

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

.focused {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ===== PRINT STYLES ===== */
@media print {
  .header,
  .scrollup,
  .whatsapp-float {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  .section {
    page-break-inside: avoid;
  }
}