:root {
  /* Paleta Cromática Identitaria CREA */
  --crea-bg-light: #f5f3f9;
  --crea-bg-white: #ffffff;
  --crea-bg-card-light: #ffffff;
  --crea-dark: #0f0a1c;
  --crea-dark-card: #18122b;
  --crea-dark-elevated: #221a3a;
  --crea-fondo-dark: #151223;

  --crea-purple-primary: #8262b0;
  --crea-purple-accent: #a855f7;
  --crea-purple-light: #c084fc;
  --crea-purple-soft: #f3e8ff;
  --crea-purple-border: #e9d5ff;
  --crea-purple-900: #2e1065;
  --crea-purple-oscuro: #4c1d95;  

  --crea-emerald: rgba(127, 201, 105, 1);
  --crea-emerald-medium: rgba(83, 237, 142, 1);
--crea-emerald-dark: #047857;

  --crea-text-main: #121016;
  --crea-text-muted: #595567;
  --crea-text-light: #ffffff;
  --crea-text-light-muted: #a7a2bc;

  --crea-border-light: rgba(147, 51, 234, 0.14);
  --crea-border-dark: rgba(168, 85, 247, 0.22);

  /* Tipografías */
  --font-serif: Montserrat;
  --titulos: 'Cormorant Garamond', serif;
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'Space Grotesk', monospace;

  /* Geometría y Sombras */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
  
  --shadow-sm: 0 1px 3px rgba(18, 16, 22, 0.05);
  --shadow-md: 0 4px 14px rgba(18, 16, 22, 0.08);
  --shadow-lg: 0 12px 28px rgba(18, 16, 22, 0.12);
  --shadow-purple: 0 8px 25px rgba(147, 51, 234, 0.25);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
--transition-normal: 0.45s cubic-bezier(0.25, 1, 0.5, 1);
--transition-lento: 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}
/* ==========================================================================
   RESET & REGLAS BASE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: #fff;
    overflow-x: hidden;
    background-color: var(--crea-fondo-dark);
}

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

ul {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
  background: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 16px;
    padding-right: 16px;
}



/* ==========================================================================
   01. HEADER & NAVBAR · ALINEACIÓN CORREGIDA
   ========================================================================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  text-transform: uppercase;
  background-image: none;
    background-color: 
color-mix(in oklab, #0f0e17 95%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px -20px rgba(0, 0, 0, 0.6);
}

header.scrolled {
  border-bottom-color: rgba(255, 255, 255, .08);
  box-shadow: 0 10px 30px -20px rgba(0, 0, 0, .6);
}

header.scrolled .brand-text strong {
    color: #fff;
    font-size: 1rem !important;
}

header.scrolled .brand-text span {
    display: none;
}

header.scrolled img.brand-logo {
    height: 25px;
}


nav.container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 78px; 
    transition: height 0.3s ease; 
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
img.brand-logo {
    height: 40px;
}

.brand-logo-text {
  display: flex;
  flex-direction: column;
}

.brand-text strong {
    display: block;
    line-height: 21px;
    letter-spacing: .4rem;
    font-size: 1.5rem !important;
}
.brand-text span {
    font-size: .7rem;
    display: block;
    line-height: 0.5rem;
    margin: 4px 2px;
}

.brand-title {
  font-family: var(--font-serif);
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  color: var(--crea-text-main);
  line-height: 1;
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  color: var(--crea-purple-primary);
  margin-top: 4px;
}

/* Contenedor derecho que agrupa los enlaces y las acciones (WhatsApp / Menú móvil) */
.nav-right-group {
  display: flex;
  align-items: center;
  gap: 32px; /* Espacio entre los links del menú y el botón de WhatsApp */
}

.nav-links {
  display: flex;
  gap: 26px;
  align-items: center;
}

.nav-link {
  color: rgba(255, 255, 255, .75);
  font-weight: 500;
  font-size: .8rem;
  position: relative;
  padding: 4px 0;
  font-family: Montserrat, sans-serif;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 2px;
  width: 0;
  background: var(--crea-purple-light, #c084fc);
  transition: width .25s ease;
}

.nav-link:hover, .nav-link.active {
  color: #fff;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

/* Acciones (WhatsApp) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-whatsapp-nav {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  background: linear-gradient(90deg, var(--crea-emerald) 2%, var(--crea-emerald-medium) 100%);
  color: #ffffff;
  padding: 8px 22px;
  line-height: 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
  transition: var(--transition-fast);
}

.btn-whatsapp-nav:hover {
  transform: translateY(-1px);
  color: #ffffff;
}


/* ==========================================================================
   ESTILOS RESPONSIVOS PARA EL MENÚ MÓVIL
   ========================================================================== */

/* Por defecto en escritorio el botón hamburguesa no se ve */
.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

  /* Mostrar el botón hamburguesa en tablets y celulares */
@media (max-width: 992px) {
  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Ocultar los links principales y transformarlos en menú desplegable flotante */
  .nav-links {
    position: fixed;
    top: 78px; /* Altura exacta de tu header */
    left: 0;
    width: 100%;
    background-color: rgba(12, 12, 12, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: flex-start;
    padding: 30px;
    gap: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    
    /* Estado inicial oculto */
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease-in-out;
    z-index: 290;
  }

  /* Estado cuando se abre con JavaScript (.open) */
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

/* ==========================================================================
   PATRÓN DE GRILLA TÉCNICA BLUEPRINT (FONDO CLARO Y OSCURO)
   ========================================================================== */

.blueprint-grid-light {
background-color: var(--crea-bg-light);
background-image: linear-gradient(to right, rgba(147, 51, 234, 0.06) 1px, transparent 1px), linear-gradient(to bottom, rgba(147, 51, 234, 0.06) 1px, transparent 1px);
background-size: 40px 40px;
}

.portfolio-section-dark {
color: #ffffff;
background-image: linear-gradient(to right, rgba(147, 51, 234, 0.06) 1px, transparent 1px), linear-gradient(to bottom, rgba(147, 51, 234, 0.06) 1px, transparent 1px);
background-size: 40px 40px;
}



      
      

        /***OTROS***/

    
       

        /* 1. HEADER DE COSTADO / PANEL IZQUIERDO */
.hero-izq {
    background-color: var(--crea-fondo-dark);
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.30fr .70fr;
}


.etiqueta-presupuesto {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    gap: 8px;
        color: var(--crea-text-light-muted);
}

.hero-contenido {
    padding-left: 5%;
    max-width: 400px;
    padding-top: 100px;
}

.hero-contenido h1 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: var(--crea-purple-soft);
    line-height: 1.15;
}

.hero-contenido h1 span {
    color: var(--crea-purple-primary);
}

.hero-contenido p {
    line-height: 1.6;
    color: var(--crea-text-light-muted);
    margin-bottom: 20px;
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: normal;
    margin-top: 20px;
}
        

.tags-servicios {
    display: flex;
    flex-direction: column;
    font-weight: bold;
    letter-spacing: 2px;
    font-family: var(--font-mono);
    font-size: 0.5rem;
    color: var(--crea-text-muted);
    gap: 6px;
} 

.hero-line {
    width: 90px;
    height: 3px;
    background-color: var(--crea-purple-primary);
    margin: 20px 0px;
}


        /* 2. IMAGEN A LA DERECHA */
        
.logo-presupuesto {
    position: relative;
    width: 150%;
    height: 100%;
    min-height: 100vh;
    background-color: rgb(15, 10, 28);
    border-left: 3px solid var(--crea-dark-elevated);
    overflow: hidden;
    grid-column: 2;
     transform: skewX(-20deg); 
}

.logo-img {
position: absolute;
    top: 0;
    left: -20%;
    width: 100%;
    height: 100%;
    background-image: url(imagenes/casa01.png);
    background-size: cover;
    background-position: center;
    transform: skewX(20deg);
}

        /* 3. CUADRO QUE FLOTA EN EL MEDIO */
        .calculadora {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--crea-fondo-dark);
}

.calculadora-contenido {
    position: absolute;
    top: 120px;
    left: 58%;
    transform: translateX(-50%);
    margin-bottom: 50px;
    max-width: 750px;
    background: var(--crea-dark);
    border: 1px solid var(--crea-dark-elevated);
    border-radius: var(--radius-md);
    padding: 35px;
    color: var(--crea-text-light-muted);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
    z-index: 10;
}

@media (min-width: 993px) {
.calculadora-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}
}

.paso-titulo {
    border-radius: 50%;
    font-size: 1rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif);
    font-weight: 800;
    letter-spacing: 0.12em;
    color: #ffffff;
}

.paso-titulo span {
    color: var(--crea-purple-primary);
    font-size: 1.6rem;
    margin-right: 15px;
}

.opciones-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--crea-dark-elevated);
    margin-bottom: 15px;
}

.opcion-card {
    border-color: var(--dark-purple);
    background-color: var(--dark-purple);
    color: var(--white);
    border: 1px solid var(--crea-dark-elevated);
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 25px;
    margin-bottom: 15px;
    border-radius: var(--radius-md);
    min-width: 200px;
}

.opcion-card.activa {
    border-color: var(--crea-purple-oscuro);
    box-shadow: inset 1px -2px 30px 0px #8444c32e;
}

.opcion-card h3 {
    font-size: 1rem;
    font-family: var(--font-mono);
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--crea-bg-light);
    margin-bottom: 6px;
    text-transform: uppercase;
}

.opcion-card p {
    font-size: 0.9rem;
    color: var(--crea-text-light-muted);
}

 /* --- SLIDER METROS CUADRADOS --- */
.slider-container {
    padding: 30px;
    padding-top: 0px;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    font-size: 1rem;
    color: var(--crea-text-light-muted);
    font-family: var(--font-serif);
}

.m2-display {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--crea-bg-card-light);
}


        input[type=range] {
            width: 100%;
            background: transparent;
        }

        input[type=range]::-webkit-slider-thumb {
            -webkit-appearance: none;
            height: 24px;
            width: 24px;
            border-radius: 50%;
            background: var(--accent-purple);
            cursor: pointer;
            margin-top: -10px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
        }

        input[type=range]::-webkit-slider-runnable-track {
            width: 100%;
            height: 6px;
            cursor: pointer;
            background: var(--border-light);
            border-radius: 5px;
        }


 
        /* --- RESULTADO --- */
     
.resultado-box {
    border-radius: 12px;
    text-align: center;
    border-color: var(--dark-purple);
    color: var(--white);
    border: 1px solid var(--crea-dark-elevated);
    transition: all 0.3s ease;
    padding: 25px;
    background: #0F0A1C;
    background: radial-gradient(circle, rgba(15, 10, 28, 1) 0%, rgba(15, 10, 28, 1) 52%, rgba(29, 22, 51, 1) 100%);
}

.resultado-box h4 {
    margin-bottom: 15px;
    color: var(--crea-purple-accent);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5em;
    text-transform: uppercase;
}

.precio-final {
    font-family: var(--font-sans);
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--crea-purple-soft);
}

.disclaimer {
     color: var(--crea-text-light-muted);
    line-height: 1.5;
    font-size: 0.8rem;
    margin: 0px 10px;
    font-style: italic;
}

.btn-whatsapp-res {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--crea-bg-card-light);
    text-decoration: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-weight: bold;
    transition: transform 0.3s, background 0.3s;
    background: linear-gradient(90deg, var(--crea-emerald) 2%, var(--crea-emerald-medium) 100%);
    font-family: var(--font-mono);
    margin-top: 25px;
        color: var(--crea-dark-card);
}


.btn-whatsapp-res:hover {
    transform: translateY(-2px);
    background: linear-gradient(90deg, var(--crea-emerald) 1%, var(--crea-emerald-dark) 100%);
}


/*********************/

/* Estilo general del input range */
#rangoM2 {
    appearance: none;
    width: 100%;
    height: 8px;
    background: var(--crea-dark-elevated);
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

/* === EL PUNTO (THUMB) PARA CHROME, SAFARI Y EDGE === */
#rangoM2::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    margin-top: -8px;
    border-radius: 50%;
    background: var(--crea-purple-primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease;
        border: 1px solid var(--crea-dark);
}

#rangoM2::-webkit-slider-thumb:hover {
    transform: scale(1.15); 
    background-color: var(--crea-purple-oscuro);
}

/* === EL PUNTO (THUMB) PARA FIREFOX === */
#rangoM2::-moz-range-thumb {
 width: 20px;
    height: 20px;
    margin-top: -8px;
    border-radius: 50%;
     margin-top: -6px;
        background: var(--crea-purple-primary);
    cursor: pointer;
           border: 1px solid var(--crea-dark);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}
/*******************/

  /* --- OPCIONES DE TRABAJO --- */
  




        .flotante-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 15px; }
        .flotante-header h3 { font-size: 15px; color: #d8b4fe; letter-spacing: 1px; }
        .flotante-header span { font-size: 11px; color: #888; }

        .flotante-body p { font-size: 13px; color: #ccc; line-height: 1.6; margin-bottom: 25px; }
        
        .btn-flotante {
            display: block; width: 100%; background: #7c3aed; color: #fff; text-align: center;
            padding: 14px; border-radius: 10px; text-decoration: none; font-weight: bold; font-size: 13px;
            transition: 0.3s; box-shadow: 0 5px 20px rgba(124, 58, 237, 0.4);
        }
        .btn-flotante:hover { background: #6d28d9; transform: translateY(-2px); }




                /* --- SOLO PARA PANTALLAS GRANDES (Pantallas menores a 992px) --- */

        @media (min-width: 993px) {
.resultado-box{
        min-width: 430px;
}
        }

        /* --- ADAPTACIÓN MÓVIL (Pantallas menores a 992px) --- */
@media (max-width: 992px) {
    .hero-izq {
        grid-template-columns: 1fr; /* Pasa a una sola columna */
        padding-top: 80px;          /* Espacio para que no lo tape el header fijo */
        min-height: auto;
    }
}



@media (max-width: 992px) {
    .calculadora-contenido {
        position: relative;     /* Pierde el absoluto para ubicarse en el flujo */
        top: auto;
        left: auto;
        transform: none;        /* Quitamos el centrado por transform */
        width: 92%;
        margin: 30px auto;      /* Centrado automático con márgenes */
        padding: 20px;          /* Padding más compacto para pantallas chicas */
    }
}


@media (max-width: 992px) {
    .logo-presupuesto {
width: 100%;
        min-height: 350px;
        border-left: none;
        border-top: 3px solid var(--crea-dark-elevated);
        grid-column: 1;
        transform: skewX(0deg);
        margin-top: -50%;
    }
    
    .logo-img {
position: relative;
        width: 100%;
        height: 350px;
        transform: none;
        margin-left: 0;
        left: 0;
    }
}

@media (max-width: 992px) {
    .hero-contenido {
        padding-left: 20px;
        padding-right: 20px;
        max-width: 100%;
        padding-top: 20px;
        text-align: center; 
    }

    .hero-contenido h1 {
        font-size: 2.2rem; 
    }

    .hero-line {
        margin: 20px auto; 
    }
}