/* landing.css - Landing Page Profesional de HesiLab */

/* ============================================
   VARIABLES ESPECÍFICAS DE LANDING
   ============================================ */
:root {
  --hero-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --hero-gradient-alt: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --section-spacing: 6rem;
  --section-spacing-mobile: 3rem;
}

/* ============================================
   RESET BODY
   ============================================ */
body {
  background: white;
  overflow-x: hidden;
}

/* ============================================
   NAVIGATION HEADER
   ============================================ */
.landing-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.landing-header.scrolled {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-600);
  text-decoration: none;
  cursor: pointer;
}

.logo-icon {
  font-size: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--primary-600);
}

.nav-cta-btn {
  background: var(--primary-600);
  color: white;
  padding: 0.625rem 1.5rem;
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.2s;
}

.nav-cta-btn:hover {
  background: var(--primary-700);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
}

.mobile-menu-btn span {
  width: 24px;
  height: 3px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all 0.3s;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: white;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 999;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu.active {
  display: flex;
}

.mobile-link {
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 1.125rem;
  padding: 0.75rem 0;
  transition: color 0.2s;
}

.mobile-link:hover {
  color: var(--primary-600);
}

.mobile-cta-btn {
  background: var(--primary-600);
  color: white;
  padding: 1rem;
  border: none;
  border-radius: var(--radius-lg);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 1rem;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  background: var(--hero-gradient);
  padding: 8rem 2rem 6rem;
  margin-top: 70px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

.hero-content {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text {
  color: white;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: white;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.cta-primary {
  background: white;
  color: var(--primary-600);
  padding: 1rem 2rem;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 1.125rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.3s;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.cta-icon {
  font-size: 1.5rem;
}

.cta-secondary {
  color: white;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.125rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  transition: all 0.2s;
}

.cta-secondary:hover {
  gap: 1rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: white;
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

/* Hero Image - Floating Cards */
.hero-image {
  position: relative;
  height: 400px;
}

.hero-card {
  position: absolute;
  background: white;
  padding: 1.5rem 2rem;
  border-radius: var(--radius-xl);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: float 3s ease-in-out infinite;
}

.card-icon {
  font-size: 2rem;
}

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

.card-1 {
  top: 50px;
  left: 0;
  animation-delay: 0s;
}

.card-2 {
  top: 180px;
  right: 50px;
  animation-delay: 1s;
}

.card-3 {
  bottom: 50px;
  left: 80px;
  animation-delay: 2s;
}

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

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features-section {
  padding: var(--section-spacing) 0;
  background: var(--gray-50);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: var(--radius-xl);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.feature-description {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ============================================
   BENEFITS SECTION
   ============================================ */
.benefits-section {
  padding: var(--section-spacing) 0;
  background: white;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
}

.benefit-item {
  position: relative;
  padding-left: 4rem;
}

.benefit-number {
  position: absolute;
  left: 0;
  top: 0;
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary-600);
  opacity: 0.2;
}

.benefit-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.benefit-description {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */
.how-it-works-section {
  padding: var(--section-spacing) 0;
  background: var(--gray-50);
}

.steps-container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.step-item {
  flex: 1;
  text-align: center;
}

.step-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--hero-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}

.step-number {
  font-size: 2rem;
  font-weight: 800;
  color: white;
}

.step-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.step-description {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.step-arrow {
  font-size: 2rem;
  color: var(--primary-600);
  align-self: center;
  margin-top: 2rem;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
  padding: 5rem 2rem;
  background: var(--hero-gradient);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}

.cta-container {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: 3rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1.5rem;
}

.cta-description {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.cta-button {
  background: white;
  color: var(--primary-600);
  padding: 1.25rem 3rem;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  transition: all 0.3s;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.cta-note {
  margin-top: 1.5rem;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
}

/* ============================================
   FOOTER
   ============================================ */
.landing-footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 4rem 2rem 2rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
}

.footer-tagline {
  color: var(--gray-500);
  line-height: 1.6;
}

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

.footer-heading {
  color: white;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: var(--gray-400);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s;
}

.footer-link:hover {
  color: white;
}

.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-800);
  text-align: center;
}

.footer-copyright {
  color: var(--gray-500);
  font-size: 0.875rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-image {
    display: none;
  }

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

  .step-arrow {
    transform: rotate(90deg);
    margin: 1rem 0;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

@media (max-width: 768px) {
  :root {
    --section-spacing: var(--section-spacing-mobile);
  }

  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero-section {
    padding: 5rem 1.5rem 3rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.125rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-primary,
  .cta-secondary {
    justify-content: center;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .section-subtitle {
    font-size: 1.125rem;
  }

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

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

  .cta-title {
    font-size: 2rem;
  }

  .cta-description {
    font-size: 1.125rem;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 1rem 1rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }

  .cta-button {
    padding: 1rem 2rem;
    font-size: 1.125rem;
  }
}