/* ====================================
   RV TOOLS - ESTILOS GENERALES
   ==================================== */

/* --- VARIABLES CSS GLOBALES --- */
:root {
    /* Colores principales */
    --color-primary: #3bbfa7;
    --color-primary-dark: #2a9d7f;
    --color-primary-light: #5dd4bb;
    --color-primary-alpha: rgba(59, 191, 167, 0.15);
    
    /* Colores de fondo */
    --color-bg: #fafafa;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #f5f5f5;
    --color-surface: #ffffff;
    
    /* Colores de texto */
    --color-text-primary: #2c3e50;
    --color-text-secondary: #5a6c7d;
    --color-text-muted: #95a5b6;
    --color-text-light: #ecf0f1;
    
    /* Bordes y sombras */
    --color-border: #e1e8ed;
    --color-border-hover: #d0d7de;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
    
    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Animaciones */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
    
    /* Bordes redondeados */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

/* --- RESET Y BASE --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    line-height: 1.15;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background-color: var(--color-primary-alpha);
    color: var(--color-text-primary);
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* --- BREADCRUMB --- */
.breadcrumb {
    background-color: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-sm) 0;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
    font-size: 0.9rem;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    color: var(--color-text-muted);
}

.breadcrumb-item:not(:last-child)::after {
    content: '›';
    margin-left: var(--spacing-sm);
    color: var(--color-text-muted);
}

.breadcrumb-item a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.breadcrumb-item a:hover {
    text-decoration: underline;
}

/* --- CONTENIDO PRINCIPAL --- */
.main-content {
    min-height: calc(100vh - 200px);
    padding: var(--spacing-xl) 0;
}

/* --- COMPONENTES DE HERRAMIENTAS --- */
.tool-container {
    max-width: 800px;
    margin: 0 auto;
}

.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.tool-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.tool-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.tool-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.tool-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    transition: var(--transition);
}

/* --- FORMULARIOS --- */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.form-label i {
    color: var(--color-primary);
    font-size: 0.9rem;
}

.form-input, .form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    color: var(--color-text-primary);
    background-color: var(--color-surface);
    transition: var(--transition);
}

.form-input:focus, .form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-alpha);
    transform: translateY(-1px);
}

.form-input.error, .form-select.error {
    border-color: #e74c3c;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.15);
}

/* --- BOTONES --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: white;
    box-shadow: 0 4px 12px rgba(59, 191, 167, 0.3);
}

.btn-primary::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;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 191, 167, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-1px);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.1rem;
}

/* --- RESULTADOS --- */
.results-section {
    background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-secondary));
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.results-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
}

.results-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.results-title i {
    color: var(--color-primary);
}

.result-item {
    background: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-md);
    position: relative;
    transition: var(--transition);
}

.result-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.result-label {
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

/* Tarjeta base */
.tool-card {
  display: block;
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-2xl);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
  color: inherit;
  text-decoration: none; /* por si es <a> */
  cursor: default;
}
.tool-card__header { display:flex; align-items:center; justify-content:space-between; margin-bottom: .5rem; }

.tool-card--link { cursor: pointer; }
.tool-card--link:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,.08);
  border-color: #d1d5db;
}

/* Estado deshabilitado (Próx.) */
.tool-card--disabled { 
  opacity: .88;
  cursor: not-allowed;
}
.tool-card--disabled:hover { transform: none; box-shadow: var(--shadow-md); }

/* Botón fantasma para Próx. */
.btn.btn--ghost {
  display: inline-block;
  border: 1px dashed #c7cad1;
  color: #6b7280;
  background: transparent;
  padding: .5rem .9rem;
  border-radius: 8px;
}

/* ===========================================================
   HERO DEL HEADER (común a todas las herramientas)
   Centrado por defecto; en móvil vuelve a izquierda para legibilidad.
   =========================================================== */

.tools-wrap .hero{
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.tools-wrap .hero .hero__content{
  max-width: 920px;
  margin: 0 auto;         /* centra el bloque */
  text-align: center;     /* centra título y lead */
}

/* Soporta ambos: h1 clásico y .tool-title */
.tools-wrap .hero .hero__content h1,
.tools-wrap .hero .hero__content .tool-title{
  margin: 0 0 var(--spacing-sm);
  line-height: 1.15;
  font-size: clamp(28px, 4.8vw, 44px);
}

/* Soporta lead clásico y .tool-description */
.tools-wrap .hero .hero__content .lead,
.tools-wrap .hero .hero__content .tool-description{
  color: var(--color-text-secondary);
  font-size: clamp(15px, 1.9vw, 18px);
  max-width: 720px;
  margin: 0 auto;         /* centra el párrafo si tiene ancho limitado */
}

/* Chips bajo el lead (si existen) */
.tools-wrap .hero .hero__content .hero-chips{
  margin-top: .75rem;
  display: flex;
  gap: .5rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* En pantallas pequeñas, volvemos a izquierda */
@media (max-width: 560px){
  .tools-wrap .hero .hero__content{
    text-align: left;
    padding: 0 6px;
  }
  .tools-wrap .hero .hero__content .hero-chips{
    justify-content: flex-start;
  }
}