:root {
    --font-family: 'Poppins', sans-serif;
    --color-white: #ffffff;
    --color-text-muted: rgba(255, 255, 255, 0.7);
    --color-accent: #c80000;
    
    /* Estilos Glassmorphism (Cristal) */
    --glass-bg: rgba(20, 10, 10, 0.45);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-blur: blur(12px);
    
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-family);
    background-color: #0a0000;
    color: var(--color-white);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    position: relative;
    overflow-x: hidden;
}

/* ================= FONDO DE IMAGEN ================= */
.bg-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: url('../Images/2.jpg'); 
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
    filter: brightness(0.8) blur(4px);
    transform: scale(1.05); 
}

.bg-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 0, 0, 0.258); 
}

.directory-container {
    width: 100%;
    max-width: 1000px;
    padding: 3rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* ================= HEADER ================= */
.dir-header {
    text-align: center;
    width: 100%;
    margin-bottom: 3rem;
}

.dir-logo img {
    height: 180px;
    object-fit: contain;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3));
}

.dir-title {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 0.3rem;
    text-transform: uppercase;
}

.dir-subtitle {
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 2rem;
}

/* ================= BUSCADOR ================= */
.search-wrapper {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
}

.search-wrapper .search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

#searchInput {
    width: 100%;
    padding: 14px 20px 14px 50px;
    border-radius: 30px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--color-white);
    font-size: 0.95rem;
    font-family: var(--font-family);
    transition: var(--transition);
    outline: none;
}

#searchInput::placeholder {
    color: var(--color-text-muted);
}

#searchInput:focus {
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 15px rgba(200, 0, 0, 0.2);
    background: rgba(20, 10, 10, 0.6);
}

/* ================= GRID DE TARJETAS ================= */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    width: 100%;
}

/* ================= TARJETA INDIVIDUAL ================= */
.person-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: 20px;
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition);
}

.person-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* ================= AVATAR (Foto o Ícono) ================= */
.card-avatar {
    width: 80px;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    overflow: hidden; 
}

.card-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover; 
}

.card-avatar i {
    font-size: 2.5rem;
    color: var(--color-white);
    opacity: 0.8;
}

/* Textos de la tarjeta */
.card-name {
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
    letter-spacing: 1px;
}

.card-role {
    font-size: 0.75rem;
    color: var(--color-accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 2rem;
}

/* BOTÓN ESTILO BIO (Píldora Translúcida) */
.btn-bio {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 30px;
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-bio i {
    font-size: 1.1rem;
    opacity: 0.9;
}

.btn-bio:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Mensaje cuando no hay resultados */
.no-results {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--color-text-muted);
    font-size: 1.1rem;
    padding: 2rem;
}

/* ================= MEDIA QUERIES ================= */
@media (max-width: 600px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .dir-title { font-size: 1.8rem; }
    .dir-subtitle { font-size: 0.75rem; }
}

/* ==========================================================================
   RESPONSIVE DEL DIRECTORIO (MÓVILES, TABLETS Y PANTALLAS PEQUEÑAS)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. TABLETS Y PANTALLAS MEDIANAS (hasta 992px)
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
    .directory-container {
        padding: 2.5rem 1.25rem;
    }

    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1.5rem;
    }
}

/* --------------------------------------------------------------------------
   2. TELÉFONOS MÓVILES ESTÁNDAR (hasta 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .directory-container {
        padding: 2rem 1rem;
    }

    /* Reducción fluida del Header */
    .dir-header {
        margin-bottom: 2rem;
    }

    .dir-logo img {
        height: 120px; /* Tamaño adaptado para móvil */
        margin-bottom: 0.8rem;
    }

    .dir-title {
        font-size: 1.6rem;
        letter-spacing: 1.5px;
    }

    .dir-subtitle {
        font-size: 0.75rem;
        letter-spacing: 2px;
        margin-bottom: 1.5rem;
    }

    /* Buscador adaptativo */
    .search-wrapper {
        max-width: 100%;
    }

    #searchInput {
        padding: 12px 18px 12px 45px;
        font-size: 0.9rem;
    }

    .search-wrapper .search-icon {
        left: 16px;
        font-size: 1rem;
    }

    /* Ajuste de tarjetas en móvil */
    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.2rem;
    }

    .person-card {
        padding: 2rem 1.2rem;
        border-radius: 16px;
    }

    .card-avatar {
        width: 70px;
        height: 70px;
        margin-bottom: 1.2rem;
    }

    .card-avatar i {
        font-size: 2.2rem;
    }

    .card-name {
        font-size: 1.1rem;
    }

    .card-role {
        font-size: 0.7rem;
        margin-bottom: 1.5rem;
    }

    .btn-bio {
        padding: 10px 16px;
        font-size: 0.8rem;
    }
}

/* --------------------------------------------------------------------------
   3. TELÉFONOS PEQUEÑOS (hasta 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 480px) {
    .directory-container {
        padding: 1.5rem 0.8rem;
    }

    .dir-logo img {
        height: 95px;
    }

    .dir-title {
        font-size: 1.35rem;
        letter-spacing: 1px;
    }

    .dir-subtitle {
        font-size: 0.7rem;
        letter-spacing: 1.5px;
    }

    /* En celulares muy angostos, se muestra una tarjeta por fila ocupando todo el ancho */
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .person-card {
        padding: 1.8rem 1rem;
    }

    /* Mejor tap target para dedos en pantalla táctil */
    .btn-bio {
        min-height: 44px;
    }
}