/* ==========================================================================
   RESET & CONFIGURACIÓN GENERAL
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

:root {
    --bg-principal: #0b0b0b;
    --bg-secundario: #161616;
    --color-acento: #ff3333; /* Rojo Rockero */
    --color-acento-hover: #cc1111;
    --texto-claro: #ffffff;
    --texto-oscuro: #aaaaaa;
    --fuente-titulo: 'Permanent Marker', cursive;
    --fuente-base: 'Montserrat', sans-serif;
}

body {
    background-color: var(--bg-principal);
    color: var(--texto-claro);
    font-family: var(--fuente-base);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Regla global de accesibilidad y control de imágenes */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Asegurar que los elementos interactivos muestren visualmente el foco del teclado */
a:focus-visible, 
button:focus-visible {
    outline: 3px solid var(--color-acento);
    outline-offset: 2px;
}

/* ==========================================================================
   HEADER & NAVEGACIÓN
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 8%;
    background-color: rgba(11, 11, 11, 0.95);
    border-bottom: 2px solid var(--color-acento);
    z-index: 1000;
}

.logo {
    font-family: var(--fuente-titulo);
    font-size: 1.8rem;
    letter-spacing: 2px;
}

.logo span {
    color: var(--color-acento);
}

.nav a {
    color: var(--texto-claro);
    text-decoration: none;
    font-weight: 700;
    margin-left: 20px;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.nav a:hover,
.nav a:focus {
    color: var(--color-acento);
}

/* ==========================================================================
   SECCIÓN HERO (PORTADA)
   ========================================================================== */
.hero-section {
    height: 100vh;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(11,11,11,1)), 
                url('imagenes/portada.jpg') no-repeat center center/cover;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero-content h1 {
    font-family: var(--fuente-titulo);
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: 3px;
    text-shadow: 3px 3px 0px rgba(0,0,0,0.8);
}

.hero-content .highlight {
    color: var(--color-acento);
    text-shadow: 0 0 15px rgba(255, 51, 51, 0.6);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--texto-oscuro);
    max-width: 600px;
    margin: 0 auto 40px;
}

.btn-primary {
    background-color: var(--color-acento);
    color: var(--texto-claro);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 4px;
    border: none;
    box-shadow: 0 5px 15px rgba(255, 51, 51, 0.4);
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-acento-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 51, 51, 0.6);
}

/* ==========================================================================
   SECCIONES GENERALES & BANDA (EFECTO ROTACIÓN)
   ========================================================================== */
section {
    padding: 100px 8% 80px;
}

section h2 {
    font-family: var(--fuente-titulo);
    font-size: 3rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--texto-claro);
    position: relative;
}

section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-acento);
    margin: 10px auto 0;
}

.grid-banda {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.card {
    background-color: transparent;
    height: 420px;
    -webkit-perspective: 1000px;
    perspective: 1000px; 
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    -webkit-transition: -webkit-transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
}

.card:hover .card-inner,
.card:focus-within .card-inner { /* Permite que gire al usar teclado */
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 8px;
    border: 1px solid #222;
    overflow: hidden;
}

.card-front {
    background-color: var(--bg-secundario);
    display: flex;
    flex-direction: column;
    -webkit-transform: rotateY(0deg);
    transform: rotateY(0deg);
    z-index: 2;
}

.card-img {
    height: 350px;
    background-size: cover;
    background-position: center;
    filter: grayscale(100%);
    -webkit-filter: grayscale(100%);
    transition: filter 0.5s ease, -webkit-filter 0.5s ease;
}

.card:hover .card-img {
    filter: grayscale(0%);
    -webkit-filter: grayscale(0%);
}

.card-front h3 {
    margin: auto 0;
    padding: 10px 0;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-back {
    background-size: cover;
    background-position: center;
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.card-back-content {
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0.85));
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.card-back h3 {
    font-family: var(--fuente-titulo);
    font-size: 1.3rem;
    color: var(--color-acento);
    margin-bottom: 5px;
    text-transform: uppercase;
}

.member-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--color-acento);
    padding-bottom: 5px;
    width: 85%;
}

.member-desc {
    font-size: 0.9rem;
    color: #cccccc;
    line-height: 1.5;
}

/* ==========================================================================
   SECCIÓN MÚSICA (REPRODUCTOR MULTI-TRACK MODIFICADO)
   ========================================================================== */
.music-section {
    background-color: var(--bg-secundario);
}

.music-container {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 50px;
    max-width: 1000px;
    margin: 0 auto;
}

.album-art {
    flex: 1;
    min-width: 300px;
    max-width: 400px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
}

.album-art img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.7);
    border: 2px solid #333;
}

.album-details {
    flex: 1;
    min-width: 300px;
}

.album-details h3 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--color-acento);
}

.album-details p {
    color: var(--texto-oscuro);
    margin-bottom: 25px;
}

.tracklist-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.track-item {
    display: flex;
    flex-direction: row;       /* Alineación en fila en PC */
    align-items: flex-start;   /* Alineación arriba para portadas más altas */
    background-color: var(--bg-principal);
    padding: 15px;
    border-radius: 6px;
    border: 1px solid #222;
    transition: border-color 0.3s ease;
    gap: 20px;                 /* Espacio directo entre imagen e información */
}

.track-item:hover {
    border-color: var(--color-acento);
}

/* NUEVO TAMAÑO: Incrementado a 220px x 240px de forma segura */
.track-img-mini {
    width: 150px;
    height: 180px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid #444;
    flex-shrink: 0;            /* Impide que el reproductor aplaste la imagen */
}

.track-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;                 /* Espaciado interno balanceado */
}

.track-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--texto-claro);
}

.track-info audio {
    width: 100%;
    height: 32px;
    outline: none;
}

/* Bloque controlador de audio + botón de descarga horizontal */
.track-controls-block {
    display: flex;
    flex-direction: row;       /* El reproductor y el botón van en la misma fila */
    align-items: center;
    gap: 15px;
    width: 100%;
}

.btn-descargar {
    background-color: #ff0000;
    color: #fff;
    border: none;
    padding: 6px 16px;
    font-family: var(--fuente-base);
    font-weight: bold;
    font-size: 0.8rem;
    text-transform: uppercase;
    cursor: pointer;
    display: inline-block;
    border-radius: 4px;
    transition: background 0.3s ease;
    white-space: nowrap;       /* Evita que el texto del botón se parta en dos líneas */
}

.btn-descargar:hover,
.btn-descargar:focus {
    background-color: #b30000;
}

/* Panel interactivo de estadísticas */
.track-stats-panel {
    display: flex;
    align-items: center;
    gap: 15px;
    font-family: var(--fuente-base);
    font-size: 0.85rem;
    color: #ccc;
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 12px;
    border-radius: 4px;
    width: fit-content;
}

.stat-plays {
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-reaction {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.2s ease;
    display: flex;
    align-items: center;
    gap: 4px;
    color: #aaa;
}

.btn-reaction:hover {
    transform: scale(1.2);
}

.btn-reaction.active-like {
    color: #38ef7d;
    font-weight: bold;
}

.btn-reaction.active-dislike {
    color: #ff4b2b;
    font-weight: bold;
}

/* ==========================================================================
   SECCIÓN GALERÍA - CARPETAS Y SUBGALERÍAS
   ========================================================================== */
.gallery-section {
    background-color: var(--bg-principal);
}

.folder-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.folder-card {
    background-color: var(--bg-secundario);
    border: 1px solid #222;
    border-radius: 8px;
    padding: 20px;
    width: 340px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.folder-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-acento);
}

.folder-cover {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    border-radius: 6px;
    margin-bottom: 15px;
    border: 2px solid #333;
}

.folder-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(40%) brightness(0.7);
    transition: filter 0.3s ease;
}

.folder-card:hover .folder-cover img {
    filter: grayscale(0%) brightness(1);
}

.folder-badge {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background-color: var(--color-acento);
    color: var(--texto-claro);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.folder-card h3 {
    font-size: 1.4rem;
    color: var(--texto-claro);
    margin-bottom: 6px;
}

.folder-card p {
    font-size: 0.9rem;
    color: var(--texto-oscuro);
}

.grid-galeria {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-item {
    overflow: hidden;
    border-radius: 6px;
    border: 2px solid #222;
    background-color: var(--bg-secundario);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    height: 250px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(40%) brightness(0.8);
    transition: all 0.4s ease;
    display: block;
}

.gallery-item:hover img {
    filter: grayscale(0%) brightness(1.1);
    transform: scale(1.06);
}

#btn-regresar-contenedor button {
    cursor: pointer;
}

/* ==========================================================================
   SECCIÓN: CONTACTO & CONTRATACIONES
   ========================================================================== */
.contact-section {
    background-color: var(--bg-secundario);
    border-top: 1px solid #1f1f1f;
}

.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    max-width: 1100px;
    margin: 0 auto;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--texto-claro);
    margin-bottom: 20px;
    text-transform: uppercase;
}

.contact-info p {
    color: var(--texto-oscuro);
    margin-bottom: 30px;
    font-size: 10px;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
}

.info-icon {
    font-size: 1.5rem;
    color: var(--color-acento);
    background-color: var(--bg-principal);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50px;
    border: 1px solid #333;
}

.info-text h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--texto-oscuro);
}

.info-text p {
    font-size: 1.1rem;
    color: var(--texto-claro);
    margin: 0;
    font-weight: 700;
}

.contact-socials h4 {
    font-size: 1.1rem;
    text-transform: uppercase;
    margin-bottom: 15px;
    color: var(--texto-claro);
    border-bottom: 1px solid #222;
    padding-bottom: 8px;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.social-links a {
    color: var(--texto-claro);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    background-color: var(--bg-principal);
    padding: 8px 16px;
    border-radius: 4px;
    border: 1px solid #222;
    transition: all 0.3s ease;
}

.social-links a:hover,
.social-links a:focus {
    border-color: var(--color-acento);
    color: var(--color-acento);
    transform: translateY(-2px);
}

/* Bloque del Formulario */
.contact-form-container {
    flex: 1.2;
    min-width: 320px;
    background-color: var(--bg-principal);
    padding: 40px;
    border-radius: 8px;
    border: 1px solid #222;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--texto-oscuro);
    letter-spacing: 0.5px;
}

.form-group input, 
.form-group textarea {
    background-color: var(--bg-secundario);
    border: 1px solid #333;
    color: var(--texto-claro);
    padding: 12px 15px;
    font-family: var(--fuente-base);
    font-size: 0.95rem;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus, 
.form-group textarea:focus {
    border-color: var(--color-acento);
    box-shadow: 0 0 8px rgba(255, 51, 51, 0.2);
}

.contact-form button {
    align-self: flex-start;
    cursor: pointer;
    margin-top: 10px;
}

/* ==========================================================================
   PIE DE PÁGINA (FOOTER)
   ========================================================================== */
.footer {
    background-color: #050505;
    padding: 60px 20px;
    text-align: center;
    border-top: 1px solid #222;
}

.motivation-phrase {
    font-family: var(--fuente-titulo);
    font-size: 1.8rem;
    color: var(--texto-claro);
    margin-bottom: 25px;
    letter-spacing: 1px;
    opacity: 0.9;
}

.copyright {
    font-size: 0.85rem;
    color: var(--texto-oscuro);
}

/* ==========================================================================
   DISEÑO ADAPTABLE (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 768px) {
    .header {
        padding: 15px 20px;
        flex-direction: column;
        gap: 10px;
    }
    
    .nav a {
        margin: 0 10px;
        font-size: 0.8rem;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    section {
        padding: 80px 5% 40px;
    }

    /* AJUSTES RESPONSIVE PARA PORTADAS GRANDES EN CELULARES */
    .track-item {
        flex-direction: column;    /* Se apilan en vertical en pantallas chicas */
        align-items: center;
        text-align: center;
    }

    .track-img-mini {
        width: 100%;               /* Toma un ancho fluido */
        max-width: 260px;          /* Pero no crece descontroladamente */
        height: 280px;             /* Proporcional al nuevo tamaño */
    }

    .track-controls-block {
        flex-direction: column;    /* El reproductor y el botón bajan ordenados */
        gap: 10px;
    }

    .track-stats-panel {
        margin: 5px auto 0;        /* Centra el panel de reproducciones */
    }

    .motivation-phrase {
        font-size: 1.4rem;
    }

    .folder-card {
        width: 100%;
    }

    .btn-descargar {
        width: 100%;
        text-align: center;
    }

    .contact-container {
        flex-direction: column;
    }

    .contact-form-container {
        padding: 25px 20px;
    }

    .contact-form button {
        width: 100%;
        text-align: center;
    }
}