/* ================================
   VARIABLES CSS Y RESET
================================ */
:root {
  /* Colores Corporativos Rekord360 */
  --color-primary: #0056FF;
  --color-primary-light: #4DAAFF;
  --color-secondary: #00C97E;
  --color-white: #FFFFFF;
  --color-black: #121212;
  --color-gray: #666666;
  --color-gray-light: #F5F5F5;
  --color-gray-medium: #E0E0E0;
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, #0056FF 0%, #4DAAFF 100%);
  --gradient-secondary: linear-gradient(135deg, #00C97E 0%, #4DAAFF 100%);
  
  /* Tipografía */
  --font-family: 'Montserrat', sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Espaciado */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-xxl: 64px;
  
  /* Bordes */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  
  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 86, 255, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 86, 255, 0.15);
  --shadow-lg: 0 8px 32px rgba(0, 86, 255, 0.2);
  
  /* Transiciones */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset básico */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-black);
  background-color: var(--color-white);
  overflow-x: hidden;
}

/* ================================
   UTILIDADES GENERALES
================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
}

.section-title {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-black);
}

.section-description {
  font-size: 1.1rem;
  color: var(--color-gray);
  max-width: 600px;
  margin: 0 auto;
}

/* ================================
   BOTONES
================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius-md);
  font-family: var(--font-family);
  font-weight: var(--font-weight-semibold);
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

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

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

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

/* ================================
   HEADER Y NAVEGACIÓN
================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-medium);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--color-black);
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  font-size: 1.2rem;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-black);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-menu a {
  text-decoration: none;
  color: var(--color-black);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--color-black);
  transition: all var(--transition-normal);
}

/* ================================
   HERO SECTION
================================ */
.hero {
  padding: 120px 0 var(--spacing-xxl);
  background: linear-gradient(135deg, #f8fbff 0%, #ffffff 100%);
  overflow: hidden;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: -50%;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="%234DAAFF" opacity="0.1"/></svg>');
  animation: float 20s linear infinite;
}

@keyframes float {
  0% { transform: translateX(-100%) rotate(0deg); }
  100% { transform: translateX(100%) rotate(360deg); }
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-black);
}

.hero-description {
  font-size: 1.2rem;
  color: var(--color-gray);
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

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

.stat {
  text-align: center;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-gray);
  font-weight: var(--font-weight-medium);
}

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

.phone-mockup {
  position: relative;
  width: 300px;
  height: 600px;
  background: var(--gradient-primary);
  border-radius: var(--spacing-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-lg);
  transform: rotate3d(1, 1, 0, 10deg);
  transition: transform var(--transition-slow);
}

.phone-mockup:hover {
  transform: rotate3d(1, 1, 0, 5deg) scale(1.05);
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: var(--border-radius-md);
  object-fit: cover;
  background: var(--color-white);
}

/* ================================
   FEATURES SECTION
================================ */
.features {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

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

.feature-card {
  background: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-gray-medium);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-md);
  color: var(--color-white);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.feature-title {
  font-size: 1.3rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-black);
}

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

/* ================================
   SCREENSHOTS SECTION
================================ */
.screenshots {
  padding: var(--spacing-xxl) 0;
  background: var(--color-gray-light);
}

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

.screenshot-item {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.screenshot-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.screenshot-title {
  padding: var(--spacing-md);
  font-size: 1.1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
  text-align: center;
}

/* ================================
   DOWNLOAD SECTION
================================ */
.download {
  padding: var(--spacing-xxl) 0;
  background: var(--gradient-primary);
  color: var(--color-white);
}

.download-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.download-title {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
}

.download-description {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.download-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.store-button {
  display: block;
  transition: transform var(--transition-normal);
}

.store-button:hover {
  transform: scale(1.05);
}

.store-button img {
  height: 60px;
  width: auto;
}

.download-info {
  display: flex;
  gap: var(--spacing-lg);
}

.info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
}

.info-item i {
  color: var(--color-secondary);
}

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

.phones-mockup {
  position: relative;
}

.phones-img {
  max-width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* ================================
   FOOTER
================================ */
.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand {
  max-width: 400px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

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

.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-lg);
}

.footer-title {
  font-size: 1.1rem;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

.footer-list {
  list-style: none;
}

.footer-list li {
  margin-bottom: var(--spacing-xs);
}

.footer-list a {
  color: var(--color-gray);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-list a:hover {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid #333;
}

.footer-copyright {
  color: var(--color-gray);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: #333;
  border-radius: 50%;
  color: var(--color-white);
  text-decoration: none;
  transition: all var(--transition-normal);
}

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

/* ================================
   RESPONSIVE DESIGN
================================ */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .download-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .download-buttons {
    justify-content: center;
  }
  
  .download-info {
    justify-content: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .phone-mockup {
    width: 250px;
    height: 500px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .hero {
    padding: 100px 0 var(--spacing-xl);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
  }
  
  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .download-info {
    flex-direction: column;
    align-items: center;
  }
}