/* ============================================================
   GYMMANAGER PRO - Estilos Globales
   Descripción: Variables CSS, estilos base y utilidades
   compartidas en todo el sistema.
   ============================================================ */

/* --- Variables de Diseño (Design Tokens) ---
   Centralizar colores, fuentes y espaciados aquí permite
   cambiar la paleta del sistema desde un solo lugar.       */
:root {
  /* Paleta principal */
  --color-primary:       #FF6B35;   /* Naranja energético - acción principal */
  --color-primary-dark:  #E55A25;   /* Hover / estado activo */
  --color-primary-light: #FF8C5A;   /* Tono suave para degradados */

  /* Paleta oscura del panel */
  --color-dark:          #0D0F14;   /* Fondo más oscuro */
  --color-dark-2:        #151820;   /* Fondo de tarjetas */
  --color-dark-3:        #1E2230;   /* Bordes y separadores */

  /* Paleta de la landing */
  --color-bg:            #0A0C10;
  --color-surface:       #12151C;

  /* Textos */
  --color-text:          #E8EAF0;
  --color-text-muted:    #8892A4;
  --color-text-light:    #F5F6FA;

  /* Acento secundario */
  --color-accent:        #00D4AA;   /* Verde-cyan para datos positivos */
  --color-accent-2:      #6C63FF;   /* Violeta para detalles */

  /* Tipografía */
  --font-heading:        'Bebas Neue', 'Impact', sans-serif;
  --font-body:           'DM Sans', 'Segoe UI', sans-serif;
  --font-mono:           'JetBrains Mono', 'Courier New', monospace;

  /* Espaciados base */
  --spacing-xs:  0.25rem;
  --spacing-sm:  0.5rem;
  --spacing-md:  1rem;
  --spacing-lg:  2rem;
  --spacing-xl:  4rem;

  /* Bordes y sombras */
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   32px;

  --shadow-glow:   0 0 40px rgba(255, 107, 53, 0.25);
  --shadow-card:   0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-inset:  inset 0 1px 0 rgba(255,255,255,0.06);

  /* Transiciones */
  --transition-fast:   0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow:   0.6s ease;
}

/* --- Reset y Base Global --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* --- Tipografía --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-text-light);
  letter-spacing: 0.04em;
  line-height: 1.1;
}

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

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

/* --- Botones Personalizados ---
   Extendemos Bootstrap con nuestra paleta de marca.         */
.btn-primary-gm {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border: none;
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.35);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.btn-primary-gm::before {
  /* Efecto de brillo al hacer hover */
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s ease;
}

.btn-primary-gm:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.5);
  color: #fff;
}

.btn-primary-gm:hover::before {
  left: 100%;
}

.btn-primary-gm:active {
  transform: translateY(0);
}

.btn-outline-gm {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-weight: 600;
  padding: 0.7rem 2rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn-outline-gm:hover {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.35);
}

/* --- Cards / Tarjetas del Sistema --- */
.gm-card {
  background: var(--color-dark-2);
  border: 1px solid var(--color-dark-3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.gm-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}

/* --- Badges de Estado --- */
.badge-active  { background: rgba(0, 212, 170, 0.15); color: var(--color-accent); border: 1px solid rgba(0, 212, 170, 0.3); }
.badge-warning { background: rgba(255, 193, 7, 0.15);  color: #FFC107; border: 1px solid rgba(255, 193, 7, 0.3); }
.badge-danger  { background: rgba(220, 53, 69, 0.15);  color: #DC3545; border: 1px solid rgba(220, 53, 69, 0.3); }
.badge-info    { background: rgba(108, 99, 255, 0.15); color: var(--color-accent-2); border: 1px solid rgba(108, 99, 255, 0.3); }

.gm-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0.3rem 0.75rem;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* --- Scrollbar personalizada (navegadores webkit) --- */
::-webkit-scrollbar       { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--color-dark); }
::-webkit-scrollbar-thumb { background: var(--color-dark-3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* --- Utilidades de Animación ---
   Clases para aplicar animaciones de entrada.              */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.7s ease forwards;
}

@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  animation: fadeIn 0.6s ease forwards;
}

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

/* Delay utilities para animaciones escalonadas */
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }
.delay-6 { animation-delay: 0.6s; }

/* --- Gradiente de Texto --- */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Separadores --- */
.gm-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-dark-3), transparent);
  border: none;
  margin: var(--spacing-lg) 0;
}

/* --- Loader / Spinner del sistema --- */
.gm-loader {
  width: 40px; height: 40px;
  border: 3px solid var(--color-dark-3);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* --- Ruido / Textura de fondo ---
   Añade profundidad visual sutil a los fondos.             */
.bg-noise::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}