:root {
    --kasa-blue: #006795;
    --kasa-grey: #000000b0;
    --glass-bg: rgba(0, 0, 0, 0.69); /* Variación del gris oscuro */
    --glass-border: rgba(255, 255, 255, 0.15);
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #f8f9fa;
    padding-bottom: 60px; /* Espacio para el footer móvil */
}

/* Tipografía y Colores útiles */
.kasa-blue-text { color: var(--kasa-blue); }
.bg-kasa-blue { background-color: var(--kasa-blue); }

/* --- GLASSMORPHISM CLASSES --- */
.glass-nav {
    background: rgba(0, 103, 149, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.glass-nav .nav-link {
    color: #fff !important;
    font-weight: 500;
    margin: 0 10px;
    transition: 0.3s;
}

.glass-nav .nav-link:hover { color: #d1e8f5 !important; }

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-card-dark {
    background: var(--kasa-grey);
    border: none;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s;
}
.glass-card-dark:hover { transform: translateY(-5px); }

.glass-modal {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    border-radius: 20px;
}

.glass-input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff !important;
}
.glass-input::placeholder { color: #ccc; }
.glass-input:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--kasa-blue);
    box-shadow: none;
}

.glass-footer { background: var(--kasa-grey); }
.glass-text { text-shadow: 2px 2px 8px rgba(0,0,0,0.8); }
.glass-img { filter: drop-shadow(0 10px 15px rgba(0,0,0,0.3)); }

/* Botones */
.btn-kasa {
    background-color: var(--kasa-blue);
    color: #fff;
    border-radius: 30px;
    transition: 0.3s;
}
.btn-kasa:hover {
    background-color: #004c6e;
    color: #fff;
}
.btn-outline-kasa {
    border: 2px solid var(--kasa-blue);
    color: var(--kasa-blue);
    border-radius: 30px;
}
.btn-outline-kasa:hover {
    background-color: var(--kasa-blue);
    color: #fff;
}

/* Hero Section */
.hero-section {
    height: 80vh;
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?w=1600&q=80') center/cover no-repeat;
    margin-top: 76px;
}

.overlap-cta {
    margin-top: -80px;
    position: relative;
    z-index: 10;
}

/* Floating Buttons */
.floating-social-btns {
    position: fixed;
    bottom: 80px; /* Arriba del footer movil */
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}
.f-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--kasa-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    text-decoration: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    transition: transform 0.2s;
}
.f-btn:hover {
    transform: scale(1.1);
    color: white;
}
.btn-whatsapp { font-size: 28px; }

/* Mobile Footer Fixed */
.mobile-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    z-index: 1000;
}

@media (min-width: 768px) {
    body { padding-bottom: 0; }
    .floating-social-btns { bottom: 30px; }
}