:root {
    /* Paleta Oficial iSometric */
    --color-bg: #A6D0E4;      /* Azul Pastel del fondo */
    --color-teal: #32b8a5;    /* Cara Frontal */
    --color-yellow: #f7c800;  /* Cara Lateral */
    --color-gray: #666666;    /* Cara Superior */
    --color-dark: #1a1a1a;
    --color-white: #ffffff;
    --font-main: 'Inter', sans-serif;
    --font-display: 'Orbitron', sans-serif;
}

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

body {
    background-color: var(--color-bg);
    font-family: var(--font-main);
    color: var(--color-dark);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Patrón Isométrico Realista */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background-image: 
        linear-gradient(30deg, rgba(255,255,255,0.15) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.15) 87.5%, rgba(255,255,255,0.15)),
        linear-gradient(150deg, rgba(255,255,255,0.15) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.15) 87.5%, rgba(255,255,255,0.15)),
        linear-gradient(30deg, rgba(255,255,255,0.15) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.15) 87.5%, rgba(255,255,255,0.15)),
        linear-gradient(150deg, rgba(255,255,255,0.15) 12%, transparent 12.5%, transparent 87%, rgba(255,255,255,0.15) 87.5%, rgba(255,255,255,0.15)),
        linear-gradient(60deg, rgba(255,255,255,0.15) 25%, transparent 25.5%, transparent 75%, rgba(255,255,255,0.15) 75.5%, rgba(255,255,255,0.15)),
        linear-gradient(60deg, rgba(255,255,255,0.15) 25%, transparent 25.5%, transparent 75%, rgba(255,255,255,0.15) 75.5%, rgba(255,255,255,0.15));
    background-size: 80px 140px;
    z-index: -1;
    transform: rotateX(10deg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Header Sticky Hub */
header {
    position: sticky;
    top: 20px;
    z-index: 900;
    text-align: center;
    margin-bottom: 40px;
    pointer-events: none; /* Dejamos pasar clicks al fondo si es necesario */
}

.logo-container {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 15px 40px;
    border-radius: 25px;
    display: inline-block;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1), 0 5px 0 var(--color-dark);
    border: 3px solid var(--color-dark);
    pointer-events: auto; /* Activamos clicks solo en el cuadro */
    transition: all 0.3s ease;
}

.logo-container h1 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    letter-spacing: 5px;
    color: var(--color-dark);
    margin-bottom: 10px;
}

/* Navegación Integrada */
.nav-hub {
    display: flex;
    justify-content: center;
    gap: 25px;
    list-style: none;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 2px solid rgba(0,0,0,0.05);
}

.nav-hub a {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    transition: all 0.2s ease;
    opacity: 0.7;
}

.nav-hub a svg {
    transition: transform 0.2s ease;
}

.nav-hub a:hover {
    opacity: 1;
    color: var(--color-teal);
}

.nav-hub a:hover svg {
    transform: translateY(-2px);
}

@media (max-width: 600px) {
    header { top: 10px; }
    .logo-container { padding: 12px 20px; width: 95%; }
    .logo-container h1 { font-size: 1.4rem; letter-spacing: 2px; }
    .nav-hub { gap: 12px; }
    .nav-hub a { font-size: 0.7rem; gap: 4px; }
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 80px 0;
}

.hero-content {
    margin-top: -100px;
}

.hero-content h2 {
    font-size: 4.5rem;
    line-height: 0.95;
    margin-bottom: 25px;
    text-transform: uppercase;
    font-weight: 800;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 500px;
    color: #444;
    margin-bottom: 10px;
}

.badge {
    display: inline-block;
    padding: 10px 20px;
    background: var(--color-teal);
    color: white;
    border-radius: 50px;
    font-weight: 700;
    margin-bottom: 15px;
    border: 2px solid var(--color-dark);
}

/* Botones Premium */
.btn-cta {
    background: var(--color-yellow);
    color: var(--color-dark);
    padding: 24px 48px;
    text-decoration: none;
    font-weight: 900;
    font-size: 1.1rem;
    border-radius: 15px;
    display: inline-block;
    transition: all 0.2s ease;
    border: 3px solid var(--color-dark);
    box-shadow: 8px 8px 0 var(--color-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-cta:hover {
    transform: translate(-4px, -4px);
    box-shadow: 12px 12px 0 var(--color-dark);
}

.btn-cta:active {
    transform: translate(2px, 2px);
    box-shadow: 4px 4px 0 var(--color-dark);
}

/* Visuals */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.floating-card {
    background: white;
    padding: 10px;
    border-radius: 35px;
    border: 4px solid var(--color-dark);
    box-shadow: 30px 30px 0 rgba(0,0,0,0.08);
    transform: rotate(3deg);
    transition: transform 0.5s ease;
}

.floating-card:hover {
    transform: rotate(0deg) scale(1.02);
}

.floating-card img {
    width: 100%;
    border-radius: 25px;
    display: block;
}

/* Feature Grid */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 100px;
    padding-bottom: 100px;
}

.feature-box {
    background: white;
    padding: 40px;
    border-radius: 25px;
    border: 3px solid var(--color-dark);
    box-shadow: 10px 10px 0 var(--color-dark);
}

.feature-box h3 {
    text-transform: uppercase;
    margin-bottom: 15px;
    font-family: var(--font-display);
}

.icon-alzado { color: var(--color-teal); }
.icon-perfil { color: var(--color-yellow); }
.icon-planta { color: var(--color-gray); }

@media (max-width: 968px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
    .features {
        grid-template-columns: 1fr;
    }
    .hero-content h2 {
        font-size: 3rem;
    }
}

/* Selector de Idiomas */
.lang-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 12px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 10px 18px;
    border-radius: 50px;
    border: 3px solid #1a1a1a;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.lang-flag {
    text-decoration: none;
    font-size: 1.4rem;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), filter 0.2s;
    display: block;
    line-height: 1;
    filter: grayscale(0.4);
}

.lang-flag:hover {
    transform: scale(1.3);
    filter: grayscale(0);
}

.lang-flag.active {
    filter: grayscale(0);
    transform: scale(1.2);
    position: relative;
}

.lang-flag.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--color-yellow);
    border-radius: 50%;
    border: 1px solid #1a1a1a;
}

@media (max-width: 600px) {
    .lang-selector {
        top: auto;
        bottom: 20px;
        right: 50%;
        transform: translateX(50%);
        padding: 8px 15px;
        gap: 8px;
    }
    .lang-flag { font-size: 1.2rem; }
}