/* ============================================
   ABAD Coaching - Estilos Globales
   ============================================ */

:root {
  /* ABAD Brand Colors */
  --primary: #E49933;
  --primary-dark: #C47F1F;
  --primary-light: #F0B05A;
  --secondary: #233B5E;
  --secondary-dark: #1A2C47;
  --secondary-light: #2D4A73;
  --accent: #E49933;

  /* Dark Backgrounds */
  --background: #0B1220;
  --background-dark: #0A0A0A;
  --background-card: #0F192D;
  --surface: #1A1A1A;
  --surface-hover: #2D4A73;
  --border: #233B5E;
  --text: #FFFFFF;
  --text-secondary: #B0B0B0;
  --text-muted: #808080;

  /* Estados */
  --success: #10b981;
  --warning: #E49933;
  --error: #ef4444;
  --info: #3b82f6;

  /* Tiers */
  --tier-free: #64748b;
  --tier-premium: #E49933;
  --tier-vip: #E49933;
  
  /* Sombras */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transiciones */
  --transition: all 0.2s ease;
  
  /* Radius */
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
}

/* ============================================
   Reset y Base
   ============================================ */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

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

/* ============================================
   Utilidades
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hidden {
  display: none !important;
}

/* ============================================
   Botones
   ============================================ */

.btn {
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, #E49933, #C47F1F);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-hover);
}

.btn-google {
  background: #1A1A1A;
  border: 1px solid #233B5E;
  color: #FFFFFF;
  font-weight: 500;
}

.btn-google:hover:not(:disabled) {
  background: #233B5E;
  box-shadow: var(--shadow-md);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  padding: 0.5rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.btn-icon:hover {
  background: var(--surface-hover);
  color: var(--text);
}

/* ============================================
   Forms
   ============================================ */

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #FFFFFF;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #233B5E;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-family: inherit;
  transition: var(--transition);
  background: #1A1A1A;
  color: #FFFFFF;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #808080;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(228, 153, 51, 0.2);
}

.form-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.form-divider::before,
.form-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border);
}

.form-divider span {
  padding: 0 1rem;
}

/* ============================================
   Landing Page
   ============================================ */

.landing-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hero-section {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 3rem 0;
  background: linear-gradient(135deg, #233B5E 0%, #0B1220 100%);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><circle cx="30" cy="30" r="1.5" fill="white" opacity="0.1"/></svg>');
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 450px;
  margin: 0 auto;
}

.brand {
  text-align: center;
  margin-bottom: 3rem;
  color: white;
}

.brand-name {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.brand-tagline {
  font-size: 1.125rem;
  opacity: 0.9;
  font-weight: 300;
}

.auth-card {
  background: #0F192D;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(228, 153, 51, 0.2);
}

.auth-card h2 {
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-align: center;
  color: #FFFFFF;
}

.auth-footer {
  text-align: center;
  margin-top: 1.5rem;
  font-size: 0.875rem;
  color: #B0B0B0;
}

.auth-footer a {
  color: #E49933;
}

.auth-footer a:hover {
  color: #F0B05A;
}

/* Features Preview */
.features-preview {
  margin-top: 4rem;
  text-align: center;
  color: white;
}

.features-preview h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  font-weight: 600;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.feature-item {
  background: rgba(228, 153, 51, 0.1);
  backdrop-filter: blur(10px);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(228, 153, 51, 0.3);
  transition: var(--transition);
}

.feature-item:hover {
  background: rgba(228, 153, 51, 0.2);
  transform: translateY(-4px);
  border-color: #E49933;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.feature-item h4 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.feature-item p {
  font-size: 0.875rem;
  opacity: 0.9;
  line-height: 1.5;
}

/* ============================================
   Loading & Toast
   ============================================ */

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(4px);
}

.loading-overlay.active {
  display: flex;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 400px;
}

.toast {
  background: white;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-left: 4px solid var(--primary);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--error); }
.toast.warning { border-left-color: var(--warning); }
.toast.info { border-left-color: var(--info); }

.toast-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.toast-message {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .hero-section {
    padding: 2rem 0;
  }
  
  .brand-name {
    font-size: 2rem;
  }
  
  .auth-card {
    padding: 2rem 1.5rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .toast-container {
    left: 1rem;
    right: 1rem;
    max-width: none;
  }
}