/* Modern Landing Styles for Efiloop */

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

/* CSS Variables for consistent theming */
:root {
  --primary-color: #1E40AF;
  --secondary-color: #10B981;
  --accent-color: #F59E0B;
  --neutral-color: #6B7280;
  --light-bg: #F9FAFB;
  --dark-bg: #111827;
  --text-primary: #111827;
  --text-secondary: #6B7280;
  --text-light: #FFFFFF;
  --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);
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--text-light);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* Utility Classes */
.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-accent { color: var(--accent-color) !important; }
.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-accent { background-color: var(--accent-color) !important; }

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

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

.fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

/* Header */
header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
  transition: var(--transition);
}

header:hover {
  box-shadow: var(--shadow-md);
}

header nav ul li a {
  transition: var(--transition);
  position: relative;
}

header nav ul li a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transition: width 0.3s ease;
}

header nav ul li a:hover::after {
  width: 100%;
}

/* Hero Section */
#hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.2)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

#hero h2 {
  background: linear-gradient(135deg, var(--text-light) 0%, rgba(255,255,255,0.8) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 1s ease-out;
}

#hero p {
  animation: fadeInUp 1s ease-out 0.2s both;
}

#hero a {
  background: var(--text-light);
  color: var(--primary-color);
  border: 2px solid var(--text-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 1s ease-out 0.4s both;
}

#hero a::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: left 0.5s ease;
}

#hero a:hover::before {
  left: 100%;
}

#hero a:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Sections */
section {
  padding: 5rem 0;
}

section:nth-child(even) {
  background: var(--light-bg);
}

/* Cards */
.card {
  background: var(--text-light);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.05);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-light);
}

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

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

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

/* Form Styles */
form input, form textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid #E5E7EB;
  border-radius: var(--border-radius);
  transition: var(--transition);
  font-family: inherit;
}

form input:focus, form textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

form button[type="submit"] {
  @extend .btn-primary;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
}

/* Table Styles */
table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

table th, table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid #E5E7EB;
}

table th {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-light);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

table tbody tr:hover {
  background: rgba(16, 185, 129, 0.05);
}

/* Footer */
footer {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.75rem; }

  section {
    padding: 3rem 0;
  }

  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }

  header nav ul {
    display: none; /* Mobile menu would need JS */
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  #hero {
    padding: 3rem 0;
  }

  #hero h2 {
    font-size: 2rem;
  }
}

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

/* Print Styles */
@media print {
  body {
    background: white !important;
    color: black !important;
  }

  #hero {
    background: white !important;
    color: black !important;
  }

  .card {
    box-shadow: none !important;
    border: 1px solid #ccc !important;
  }
}

/* Botón flotante de Telegram */
.telegram-float-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3.5rem;
  height: 3.5rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  z-index: 1000;
  text-decoration: none;
  border: none;
  cursor: pointer;
}

.telegram-float-btn:hover {
  transform: scale(1.1) translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.telegram-float-btn:active {
  transform: scale(0.95);
}

.telegram-float-btn i {
  transition: var(--transition);
}

.telegram-float-btn:hover i {
  transform: rotate(10deg);
}

/* Responsive para móviles */
@media (max-width: 768px) {
  .telegram-float-btn {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 3rem;
    height: 3rem;
  }

  .telegram-float-btn i {
    font-size: 1.25rem;
  }
}

@media (max-width: 480px) {
  .telegram-float-btn {
    bottom: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
  }

  .telegram-float-btn i {
    font-size: 1.125rem;
  }
}