/* ============================================
   ATLAS HR MAIL - SISTEMA DE DISEÑO
   Tema: Buzz Ball Rojo
   ============================================ */

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

/* ============================================
   VARIABLES DE DISEÑO (Tema Buzz Ball Rojo)
   ============================================ */

:root {
  /* Colores Primarios - Rojos Buzz Ball */
  --color-primary: #E31837;
  --color-primary-dark: #B91429;
  --color-primary-light: #FF3D5C;
  --color-primary-glow: rgba(227, 24, 55, 0.3);
  
  /* Colores Secundarios */
  --color-secondary: #FF6B6B;
  --color-secondary-dark: #E85555;
  --color-secondary-light: #FF8787;
  
  /* Colores de Acento */
  --color-accent: #FFD93D;
  --color-accent-dark: #F5C518;
  --color-accent-light: #FFE66D;
  
  /* Tonos Oscuros (Fondo) */
  --color-bg-primary: #0A0A0F;
  --color-bg-secondary: #13131A;
  --color-bg-tertiary: #1C1C26;
  --color-bg-card: rgba(28, 28, 38, 0.8);
  
  /* Glassmorphism */
  --glass-bg: rgba(227, 24, 55, 0.1);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(227, 24, 55, 0.2);
  --glass-blur: blur(10px);
  
  /* Colores de Texto */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #B8B8C8;
  --color-text-tertiary: #7A7A8A;
  --color-text-muted: #4A4A5A;
  
  /* Colores de Estado */
  --color-success: #4CAF50;
  --color-warning: #FFC107;
  --color-error: #F44336;
  --color-info: #2196F3;
  
  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--color-primary-glow);
  
  /* Bordes */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  
  /* Espaciado */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Transiciones */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Tipografía */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 24px;
  --font-size-2xl: 32px;
  --font-size-3xl: 48px;
}

/* ============================================
   RESET Y BASE
   ============================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Fondo animado con partículas */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, var(--color-primary-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--color-primary-glow) 0%, transparent 50%);
  opacity: 0.3;
  z-index: -1;
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.5; }
}

/* ============================================
   TIPOGRAFÍA
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }
h5 { font-size: var(--font-size-base); }
h6 { font-size: var(--font-size-sm); }

p {
  margin-bottom: var(--spacing-md);
}

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

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

/* ============================================
   COMPONENTES - BOTONES
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width var(--transition-normal), height var(--transition-normal);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 30px var(--color-primary-glow);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--color-text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
  background: rgba(227, 24, 55, 0.2);
  border-color: var(--color-primary);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================
   COMPONENTES - INPUTS
   ============================================ */

.input-group {
  margin-bottom: var(--spacing-lg);
}

.input-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input {
  width: 100%;
  padding: 14px 18px;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  color: var(--color-text-primary);
  transition: all var(--transition-normal);
  backdrop-filter: var(--glass-blur);
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
  background: rgba(227, 24, 55, 0.05);
}

.input::placeholder {
  color: var(--color-text-muted);
}

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

/* ============================================
   COMPONENTES - CARDS (Glassmorphism)
   ============================================ */

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--glass-shadow);
  border-color: rgba(227, 24, 55, 0.3);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--glass-border);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin: 0;
}

.card-body {
  color: var(--color-text-secondary);
}

/* ============================================
   COMPONENTES - NAVBAR
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  background: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 var(--spacing-xl);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-text-primary);
}

.navbar-brand img {
  height: 40px;
  width: auto;
}

.navbar-menu {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.navbar-link {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* ============================================
   COMPONENTES - MODAL
   ============================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2xl);
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  margin-bottom: var(--spacing-lg);
}

.modal-title {
  font-size: var(--font-size-2xl);
  margin: 0;
}

.modal-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 24px;
  cursor: pointer;
  transition: color var(--transition-fast);
}

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

/* ============================================
   COMPONENTES - ALERTS
   ============================================ */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: var(--font-size-sm);
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert-success {
  background: rgba(76, 175, 80, 0.2);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background: rgba(244, 67, 54, 0.2);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.alert-warning {
  background: rgba(255, 193, 7, 0.2);
  border: 1px solid var(--color-warning);
  color: var(--color-warning);
}

.alert-info {
  background: rgba(33, 150, 243, 0.2);
  border: 1px solid var(--color-info);
  color: var(--color-info);
}

/* ============================================
   COMPONENTES - LOADING SPINNER
   ============================================ */

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--glass-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.spinner-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
}

/* ============================================
   UTILIDADES
   ============================================ */

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

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none !important; }
.visible { display: block !important; }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  :root {
    --font-size-3xl: 32px;
    --font-size-2xl: 24px;
    --font-size-xl: 20px;
  }
  
  .navbar {
    padding: 0 var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .modal {
    padding: var(--spacing-lg);
  }
}