/* Variables */
:root {
    --neon-color: #ffff00; 
    --dark-bg: #000000;
    --card-bg: #121212;
    --light-text: #ffffff;
    --gray-text: #b3b3b3;
    --header-height: 76px;
}

/* Base y Tipografía */
body {
    font-family: 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    color: var(--light-text);
    background-color: var(--dark-bg);
    padding-top: var(--header-height);
    overflow-x: hidden;
    position: relative;
}

h1, h2, h3, .navbar-brand, .display-3, .display-4 {
    font-family: 'Impact', 'Arial Narrow', sans-serif;
    letter-spacing: 1px;
    font-weight: normal;
    text-transform: uppercase;
}

/* Utilidades de Color */
.text-neon { color: var(--neon-color) !important; }
.neon-glow { text-shadow: 0 0 10px rgba(255, 255, 0, 0.6), 0 0 20px rgba(255, 255, 0, 0.4); }
.bg-black { background-color: var(--dark-bg) !important; }
.border-neon { border: 1px solid var(--neon-color) !important; }

/* Navbar */
.navbar {
    background-color: rgba(0, 0, 0, 0.95) !important;
    border-bottom: 2px solid var(--neon-color);
    box-shadow: 0 0 15px rgba(255, 255, 0, 0.1);
    height: var(--header-height);
}

.navbar-brand { font-size: 1.5rem; }

.nav-link {
    font-size: 1.1rem;
    position: relative;
    padding: 5px 10px;
    color: var(--light-text) !important;
    transition: color 0.3s;
}

.nav-link:hover, .nav-link.active { color: var(--neon-color) !important; }

.nav-link::after {
    content: ''; display: block; width: 0; height: 2px;
    background: var(--neon-color);
    transition: width 0.3s; margin-top: 5px;
}

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

.dropdown-menu-dark {
    background-color: var(--dark-bg);
    border: 1px solid var(--neon-color);
}

.dropdown-item { color: var(--light-text); }
.dropdown-item:hover { background-color: var(--neon-color); color: #000; }

.navbar-toggler { border-color: var(--neon-color); }
.navbar-toggler-icon { filter: invert(1); }

/* Carrusel (Hero) */
.overlay-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.6); z-index: 1;
}

.carousel-caption { z-index: 2; bottom: 30%; }
.carousel-caption h1 { text-shadow: 0 0 20px rgba(0,0,0,0.8); }

.animate-up {
    animation: fadeInUp 1s ease-out forwards;
    opacity: 0; transform: translateY(20px);
}
.delay-1 { animation-delay: 0.3s; }
.delay-2 { animation-delay: 0.6s; }

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

/* Botones */
.btn-neon {
    background-color: var(--neon-color); color: #000;
    border: 2px solid var(--neon-color);
    text-transform: uppercase; font-weight: bold;
    transition: all 0.3s ease;
}

.btn-neon:hover {
    background-color: #fff; color: #000;
    box-shadow: 0 0 20px var(--neon-color);
    transform: scale(1.05); border-color: #fff;
}

.btn-outline-neon {
    border: 2px solid var(--neon-color); color: var(--neon-color);
    font-weight: bold; text-transform: uppercase;
}

.btn-outline-neon:hover {
    background-color: var(--neon-color); color: #000;
    box-shadow: 0 0 15px var(--neon-color);
}

/* Cards Interactivas */
.card {
    position: relative; overflow: hidden;
    background-color: var(--card-bg); border: 1px solid #333;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card-body { position: relative; z-index: 2; transition: transform 0.3s ease; }

.card::before {
    content: ""; position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center;
    opacity: 0; z-index: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    filter: grayscale(100%) brightness(0.5);
}

.card:hover {
    border-color: var(--neon-color) !important;
    box-shadow: 0 0 25px rgba(255, 255, 0, 0.2);
    transform: translateY(-10px);
}

.card:hover::before { opacity: 1; transform: scale(1.1); }
.card:hover .card-title, .card:hover i { text-shadow: 0 0 10px #000; color: var(--neon-color) !important; }
.card:hover p { color: #fff !important; text-shadow: 0 0 5px #000; }

/* Imágenes de fondo para Cards (Rutas relativas) */
#card-pesas::before { background-image: url('Media/Pesas.png'); }
#card-cardio::before { background-image: url('Media/Cardio.png'); }
#card-funcional::before { background-image: url('Media/Crossfit.png'); }

/* Formularios y Calculadora */
.form-control, .form-select {
    background-color: #000 !important; border: 1px solid #333;
    color: #fff !important; padding: 12px;
}

.form-control:focus, .form-select:focus {
    background-color: #050505 !important;
    border-color: var(--neon-color);
    box-shadow: 0 0 10px rgba(255, 255, 0, 0.3); outline: none;
}
.form-control::placeholder { color: #555; }

.monster-box {
    background-color: #121212; border: 1px solid #333;
    border-radius: 8px; transition: all 0.3s ease;
}
.monster-box:hover {
    border-color: var(--neon-color);
    box-shadow: 0 0 20px rgba(255, 255, 0, 0.1);
}

/* Tabla de Horarios */
.table-dark { --bs-table-bg: #121212; border-color: #333; }
.table th {
    color: #000; background-color: var(--gray-text);
    font-family: 'Impact', sans-serif; letter-spacing: 1px;
}
.table-hover tbody tr:hover { color: var(--neon-color); }

/* Seccion de promos*/
.promo-box {
    overflow: hidden; position: relative;
    background-color: #000; border-radius: 8px;
    transition: box-shadow 0.3s ease;
}

.promo-box img {
    width: 100%; display: block;
    transition: transform 0.5s ease, filter 0.3s;
    filter: brightness(0.8);
}

.promo-box:hover {
    box-shadow: 0 0 25px rgba(255, 255, 0, 0.4);
    border-color: var(--neon-color) !important;
}

.promo-box:hover img {
    transform: scale(1.15);
    filter: brightness(1);
}

/* Animaciones y Extras */
.transition-scale { transition: transform 0.3s; display: block; }
.transition-scale:hover { transform: scale(1.02); box-shadow: 0 0 25px rgba(255, 255, 0, 0.2); }

/* Clases necesarias para el efecto de aparición al hacer Scroll */
.hidden {
    opacity: 0; filter: blur(5px);
    transform: translateY(20px); transition: all 1s ease;
}
.show-element { opacity: 1; filter: blur(0); transform: translateY(0); }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: #333; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--neon-color); }