/* ===== VARIABLES CSS ===== */
:root {
  /* Colors */
  --primary-color: #D4AF37;
  --primary-color-light: #F4E4BC;
  --primary-color-dark: #B8941F;
  --secondary-color: #2C3E50;
  --accent-color: #E67E22;
  --text-color: #2C3E50;
  --text-color-light: #7F8C8D;
  --white-color: #FFFFFF;
  --light-color: #F8F9FA;
  --gray-color: #E9ECEF;
  --dark-color: #212529;
  --success-color: #27AE60;
  --warning-color: #F39C12;
  --danger-color: #E74C3C;

  /* Typography */
  --body-font: 'Inter', sans-serif;
  --title-font: 'Playfair Display', serif;
  --biggest-font-size: 3rem;
  --h1-font-size: 2.5rem;
  --h2-font-size: 2rem;
  --h3-font-size: 1.5rem;
  --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;

  /* Margins */
  --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-slow: all 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  color: var(--text-color);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  color: var(--text-color);
  font-weight: var(--font-semi-bold);
  font-family: var(--title-font);
}

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: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

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

.section__title {
  font-size: var(--h2-font-size);
  color: var(--text-color);
  text-align: center;
  margin-bottom: var(--mb-1);
  font-family: var(--title-font);
  font-weight: var(--font-bold);
}

.section__subtitle {
  display: block;
  font-size: var(--normal-font-size);
  color: var(--text-color-light);
  text-align: center;
  margin-bottom: var(--mb-3);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: var(--font-medium);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
  font-size: var(--normal-font-size);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: var(--transition);
}

.btn:hover::before {
  left: 100%;
}

.btn--primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-dark));
  color: var(--white-color);
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(212, 175, 55, 0.4);
}

.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);
  transform: translateY(-2px);
}

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

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

.btn--large {
  padding: 1.25rem 2.5rem;
  font-size: 1.1rem;
}

/* ===== HEADER ===== */
.header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-fixed);
  background: transparent;
  backdrop-filter: none;
  transition: var(--transition);
  border-bottom: none;
  padding: 1rem 0;
}

.header.scroll-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.1);
  padding: 0.5rem 0;
}

.nav {
  height: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.nav__logo-img {
  height: 120px;
  width: auto;
  transition: all 0.3s ease;
}

.header.scroll-header .nav__logo-img {
  height: 72px;
}

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

.nav__link {
  color: var(--text-color);
  font-weight: var(--font-medium);
  transition: var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background: var(--primary-color);
  transition: var(--transition);
}

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

.nav__whatsapp {
  background: #25D366;
  color: var(--white-color);
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  font-weight: var(--font-medium);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__whatsapp:hover {
  background: #128C7E;
  transform: translateY(-2px);
}

.nav__toggle,
.nav__close {
  display: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--text-color);
}

/* ===== HERO SECTION ===== */
.hero {
  padding-top: 8rem;
  background: linear-gradient(135deg, var(--light-color) 0%, var(--primary-color-light) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__title {
  font-size: var(--biggest-font-size);
  font-family: var(--title-font);
  font-weight: var(--font-bold);
  line-height: 1.2;
  margin-bottom: var(--mb-1);
  color: var(--text-color);
}

.hero__title-accent {
  color: var(--primary-color);
  display: block;
}

.hero__subtitle {
  font-size: var(--h3-font-size);
  color: var(--text-color-light);
  font-style: italic;
  margin-bottom: var(--mb-1-5);
}

.hero__description {
  font-size: 1.1rem;
  color: var(--text-color-light);
  margin-bottom: var(--mb-2-5);
  line-height: 1.7;
}

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

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

.hero__img {
  width: 100%;
  max-width: 500px;
  filter: drop-shadow(0 20px 40px rgba(212, 175, 55, 0.3));
  animation: float 6s ease-in-out infinite;
}

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

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

.about__container {
  max-width: 100%;
  width: 100%;
  padding: 0 2rem;
}

.about__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.about__img-wrapper {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.about__img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: var(--transition);
}

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

.about__data .section__title {
  text-align: left;
  margin-bottom: var(--mb-1-5);
}

.about__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-1-5);
  line-height: 1.7;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: var(--mb-2-5) 0;
}

.about__stat {
  text-align: center;
  padding: 1.5rem;
  background: var(--light-color);
  border-radius: 15px;
  transition: var(--transition);
}

.about__stat:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about__stat-number {
  font-size: var(--h1-font-size);
  color: var(--primary-color);
  font-weight: var(--font-bold);
  margin-bottom: var(--mb-0-5);
}

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

/* ===== WHY SECTION ===== */
.why {
  background: linear-gradient(135deg, var(--primary-color-light) 0%, var(--light-color) 100%);
}

.why__content {
  text-align: center;
}

.why__subtitle {
  font-style: italic;
  color: var(--text-color-light);
  margin-bottom: var(--mb-3);
  font-size: 1.1rem;
}

.why__benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: var(--mb-3);
}

.why__benefit {
  background: var(--white-color);
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.why__benefit::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-color-dark));
}

.why__benefit:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

.why__benefit-title {
  color: var(--text-color);
  margin-bottom: var(--mb-1);
}

.why__benefit-description {
  color: var(--text-color-light);
  line-height: 1.6;
}

/* ===== PROBLEMS SECTION ===== */
.problems {
  background: var(--white-color);
}

.problems__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: var(--mb-3);
}

.problem__card {
  background: var(--light-color);
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  transition: var(--transition);
  border: 2px solid transparent;
}

.problem__card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-color);
  box-shadow: 0 15px 35px rgba(212, 175, 55, 0.2);
}

.problem__image {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto var(--mb-1);
  border: 3px solid var(--primary-color);
}

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

.problem__title {
  color: var(--text-color);
  margin-bottom: var(--mb-1);
}

.problem__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-1-5);
  line-height: 1.6;
}

.problem__cta {
  background: #25D366;
  color: var(--white-color);
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  font-weight: var(--font-medium);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.problem__cta:hover {
  background: #128C7E;
  transform: translateY(-2px);
}

/* ===== SERVICES SECTION ===== */
.services {
  background: linear-gradient(135deg, var(--light-color) 0%, var(--primary-color-light) 100%);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: var(--mb-3);
}

.service__card {
  background: var(--white-color);
  padding: 2.5rem;
  border-radius: 25px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-color-dark));
}

.service__card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.service__card--featured {
  border: 3px solid var(--primary-color);
  transform: scale(1.05);
}

.service__badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--primary-color);
  color: var(--white-color);
  padding: 0.5rem 1rem;
  border-radius: 15px;
  font-size: var(--small-font-size);
  font-weight: var(--font-medium);
}

.service__icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--mb-1-5);
  color: var(--white-color);
  font-size: 2rem;
}

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

.service__subtitle {
  color: var(--primary-color);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-1);
}

.service__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-1-5);
  line-height: 1.6;
}

.service__features {
  margin-bottom: var(--mb-2);
}

.service__features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--mb-0-5);
  color: var(--text-color-light);
}

.service__features i {
  color: var(--success-color);
  font-size: var(--small-font-size);
}

/* ===== CERTIFICATE SECTION ===== */
.certificate {
  background: var(--white-color);
}

.certificate__container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

.certificate__image {
  display: flex;
  justify-content: center;
}

.certificate__img {
  width: 100%;
  max-width: 400px;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.certificate__data .section__title {
  text-align: left;
  margin-bottom: var(--mb-1-5);
}

.certificate__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-2);
  line-height: 1.7;
}

.certificate__benefits {
  margin-bottom: var(--mb-2-5);
}

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

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

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

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

.certificate__cta {
  background: linear-gradient(135deg, var(--primary-color-light), var(--primary-color));
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
}

.certificate__cta h3 {
  color: var(--text-color);
  margin-bottom: var(--mb-1);
}

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

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
  background: linear-gradient(135deg, var(--light-color) 0%, var(--primary-color-light) 100%);
}

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

.testimonial__card {
  background: var(--white-color);
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.testimonial__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

.testimonial__text {
  color: var(--text-color-light);
  font-style: italic;
  line-height: 1.6;
  position: relative;
}

.testimonial__text::before {
  content: '"';
  font-size: 3rem;
  color: var(--primary-color);
  position: absolute;
  top: -10px;
  left: -10px;
  font-family: var(--title-font);
}

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

.testimonial__avatar {
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white-color);
}

.testimonial__name {
  color: var(--text-color);
  margin-bottom: var(--mb-0-25);
}

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

/* ===== CTA SECTION ===== */
.cta {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-dark));
  color: var(--white-color);
}

.cta__content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.cta__title {
  font-size: var(--h1-font-size);
  color: var(--white-color);
  margin-bottom: var(--mb-1-5);
}

.cta__description {
  font-size: 1.1rem;
  margin-bottom: var(--mb-1);
  line-height: 1.7;
  opacity: 0.9;
}

.cta__subtitle {
  font-size: 1.2rem;
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-2-5);
}

.cta__button {
  background: var(--white-color);
  color: var(--primary-color);
  font-size: 1.2rem;
  padding: 1.5rem 3rem;
  margin-bottom: var(--mb-2);
}

.cta__button:hover {
  background: var(--light-color);
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.cta__contact-info {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.cta__contact-info p {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.9;
}

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

.contact__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-top: var(--mb-3);
}

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: var(--mb-2);
}

.contact__icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-color-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white-color);
  font-size: 1.5rem;
  flex-shrink: 0;
}

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

.contact__data p {
  color: var(--text-color-light);
  margin-bottom: var(--mb-0-5);
}

.contact__data a {
  color: var(--primary-color);
  font-weight: var(--font-medium);
  transition: var(--transition);
}

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

.contact__form {
  background: var(--light-color);
  padding: 2rem;
  border-radius: 20px;
}

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

.contact__input {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--gray-color);
  border-radius: 10px;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  transition: var(--transition);
  background: var(--white-color);
}

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

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

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

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: var(--mb-2);
}

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

.footer__subtitle {
  color: var(--white-color);
  margin-bottom: var(--mb-1);
}

.footer__description {
  color: var(--text-color-light);
  line-height: 1.6;
  margin-bottom: var(--mb-1-5);
}

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

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

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

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__link {
  color: var(--text-color-light);
  transition: var(--transition);
}

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

.footer__contact p {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--mb-0-5);
  color: var(--text-color-light);
}

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

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--mb-1-5);
  text-align: center;
}

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

.footer__copy i {
  color: var(--danger-color);
}

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #25D366;
  color: var(--white-color);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: var(--z-tooltip);
  transition: var(--transition);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  background: #128C7E;
  transform: scale(1.1);
  box-shadow: 0 12px 35px rgba(37, 211, 102, 0.4);
}

.whatsapp-float__text {
  position: absolute;
  right: 70px;
  background: var(--dark-color);
  color: var(--white-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: var(--small-font-size);
  white-space: nowrap;
  opacity: 0;
  transform: translateX(10px);
  transition: var(--transition);
  pointer-events: none;
}

.whatsapp-float:hover .whatsapp-float__text {
  opacity: 1;
  transform: translateX(0);
}

@keyframes pulse {
  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); }
}

/* ===== SCROLL UP ===== */
.scrollup {
  position: fixed;
  right: 2rem;
  bottom: 6rem;
  background: var(--primary-color);
  color: var(--white-color);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: var(--z-tooltip);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
}

.scrollup.show-scroll {
  opacity: 1;
  visibility: visible;
}

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

/* ===== RESPONSIVE DESIGN ===== */
@media screen and (max-width: 992px) {
  .container {
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
  }

  .section {
    padding: 4rem 0 2rem;
  }

  .hero__container,
  .about__container,
  .certificate__container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero__image {
    order: -1;
  }

  .contact__content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .services__grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }

  .service__card--featured {
    transform: none;
  }
}

@media screen and (max-width: 768px) {
  :root {
    --biggest-font-size: 2.25rem;
    --h1-font-size: 2rem;
    --h2-font-size: 1.5rem;
    --h3-font-size: 1.25rem;
    --normal-font-size: 0.938rem;
    --small-font-size: 0.813rem;
    --smaller-font-size: 0.75rem;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--white-color);
    padding: 6rem 2rem 2rem;
    transition: var(--transition);
    z-index: var(--z-modal);
  }

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

  .nav__list {
    flex-direction: column;
    gap: 2rem;
  }

  .nav__close {
    display: block;
    position: absolute;
    top: 2rem;
    right: 2rem;
  }

  .nav__toggle {
    display: block;
  }

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

  .nav__whatsapp {
    display: none;
  }

  .hero {
    padding-top: 6rem;
  }

  .hero__buttons {
    justify-content: center;
  }

  .btn {
    padding: 0.875rem 1.5rem;
  }

  .btn--large {
    padding: 1rem 2rem;
  }

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

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

  .problems__grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

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

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

  .cta__contact-info {
    flex-direction: column;
    gap: 1rem;
  }

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

  .whatsapp-float {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 55px;
    height: 55px;
  }

  .scrollup {
    right: 1.5rem;
    bottom: 5.5rem;
  }
}

@media screen and (max-width: 480px) {
  .container {
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__buttons {
    flex-direction: column;
    align-items: center;
  }

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

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

  .service__card {
    padding: 2rem 1.5rem;
  }

  .contact__form {
    padding: 1.5rem;
  }

  .whatsapp-float__text {
    display: none;
  }
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: var(--transition-slow);
}

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

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: var(--transition-slow);
}

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

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: var(--transition-slow);
}

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

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition-slow);
}

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


/* ===== BLOG PREVIEW SECTION ===== */
.blog-preview {
  background: linear-gradient(135deg, var(--light-color) 0%, var(--primary-color-light) 100%);
}

.blog-preview__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: var(--mb-3);
}

.blog-preview__card {
  background: var(--white-color);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.blog-preview__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.blog-preview__image {
  position: relative;
  overflow: hidden;
  height: 200px;
}

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

.blog-preview__card:hover .blog-preview__img {
  transform: scale(1.05);
}

.blog-preview__content {
  padding: 1.5rem;
}

.blog-preview__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--mb-1);
}

.blog-preview__category {
  background: var(--primary-color);
  color: var(--white-color);
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: var(--small-font-size);
  font-weight: var(--font-medium);
}

.blog-preview__date {
  color: var(--text-color-light);
  font-size: var(--small-font-size);
}

.blog-preview__title {
  color: var(--text-color);
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-0-75);
  line-height: 1.3;
}

.blog-preview__description {
  color: var(--text-color-light);
  margin-bottom: var(--mb-1-5);
  line-height: 1.6;
}

.blog-preview__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary-color);
  font-weight: var(--font-medium);
  text-decoration: none;
  transition: var(--transition);
}

.blog-preview__link:hover {
  color: var(--primary-color-alt);
  gap: 0.75rem;
}

.blog-preview__link i {
  font-size: var(--small-font-size);
  transition: var(--transition);
}

.blog-preview__cta {
  text-align: center;
  margin-top: var(--mb-3);
}

/* Responsive */
@media screen and (max-width: 768px) {
  .blog-preview__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .blog-preview__image {
    height: 180px;
  }
  
  .blog-preview__content {
    padding: 1.25rem;
  }
}


/* Article Styles */
.article-header {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.article-header__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    margin-bottom: 3rem;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.article-category {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.article-reading-time {
    color: var(--text-color-light);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.article-subtitle {
    font-size: 1.25rem;
    color: var(--text-color-light);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.article-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

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

.author-info {
    text-align: left;
}

.author-name {
    display: block;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.article-date {
    color: var(--text-color-light);
    font-size: 0.875rem;
}

.article-image {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.article-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.article-content {
    padding: 4rem 0;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-color);
}

.article-intro {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 3rem;
    padding: 2rem;
    background: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    border-radius: 8px;
}

.article-body h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 3rem 0 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.article-body h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 2rem 0 1rem;
}

.article-body h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 1.5rem 0 0.75rem;
}

.article-body p {
    margin-bottom: 1.5rem;
}

.article-list {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-list li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.highlight-box {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    border: 1px solid #ffeaa7;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.highlight-box h4 {
    color: #856404;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.highlight-box p {
    color: #856404;
    margin-bottom: 0;
}

.success-box {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    border: 1px solid #c3e6cb;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.success-box h4 {
    color: #155724;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.success-box p,
.success-box ul,
.success-box ol {
    color: #155724;
    margin-bottom: 0.75rem;
}

.success-box li {
    margin-bottom: 0.5rem;
}

.warning-box {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    border: 1px solid #f5c6cb;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.warning-box h4 {
    color: #721c24;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.warning-box p,
.warning-box ul {
    color: #721c24;
    margin-bottom: 0.75rem;
}

.warning-box li {
    margin-bottom: 0.5rem;
}

.timeline-box {
    background: linear-gradient(135deg, #e2e3e5 0%, #d6d8db 100%);
    border: 1px solid #d6d8db;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.timeline-box h4 {
    color: #383d41;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.timeline-box p {
    color: #383d41;
    margin-bottom: 0.75rem;
}

.article-cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, #e6b800 100%);
    border-radius: 15px;
    padding: 3rem;
    margin: 4rem 0;
    text-align: center;
    color: white;
}

.article-cta h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: white;
}

.article-cta p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid #e9ecef;
}

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

.article-share span {
    font-weight: 500;
    color: var(--text-color-light);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #f8f9fa;
    color: var(--text-color-light);
    text-decoration: none;
    transition: all 0.3s ease;
}

.share-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Responsive */
@media screen and (max-width: 768px) {
    .article-header {
        padding: 6rem 0 3rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-subtitle {
        font-size: 1.125rem;
    }
    
    .article-body {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .article-body h2 {
        font-size: 1.5rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .article-navigation {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
    
    .article-cta {
        padding: 2rem 1rem;
    }
    
    .article-cta h3 {
        font-size: 1.5rem;
    }
}