/**
 * ============================================================================
 * RELATANDO.COM — MODULE READER TOOLS (FASE 3 #21 / #23)
 * ----------------------------------------------------------------------------
 * Panel accesible de herramientas de lectura: tamaño de fuente A-/A+,
 * alto contraste, linterna on/off y barra de progreso on/off.
 * Rendimiento: vive dentro de la columna de lectura, sin filtros ni blur.
 * Identidad: noir (#030705 / #00ff88 / #d4af37) — no se altera la paleta.
 * ============================================================================
 */

.rel-tools {
    position: relative;
    max-width: var(--spacing-reading);
    margin: 0 auto 1.5rem;
    padding: 0 14px;
    box-sizing: border-box;
    z-index: 20;
}

.rel-tools-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 44px;
    padding: 0 1rem;
    background: rgba(6, 15, 9, 0.85);
    color: #e6ede9;
    border: 1px solid rgba(212, 175, 55, 0.35);
    border-radius: 999px;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: border-color 0.25s ease, color 0.25s ease;
}

.rel-tools-toggle:hover,
.rel-tools-toggle[aria-expanded="true"] {
    border-color: #00ff88;
    color: #00ff88;
}

.rel-tools-panel {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.75rem;
    padding: 0.85rem 1rem;
    background: rgba(3, 7, 5, 0.94);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
}

.rel-tools-panel[hidden] {
    display: none;
}

.rel-tools-group {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding-right: 0.8rem;
    margin-right: 0.2rem;
    border-right: 1px solid rgba(212, 175, 55, 0.25);
}

.rel-tools-group:last-child {
    border-right: none;
    padding-right: 0;
}

.rel-tools-label {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #a3b8ad;
    margin-right: 0.2rem;
}

.rel-tools-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0 0.85rem;
    background: rgba(255, 255, 255, 0.05);
    color: #e6ede9;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 10px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.rel-tools-btn:hover {
    background: rgba(0, 255, 136, 0.12);
    border-color: rgba(0, 255, 136, 0.5);
    color: #00ff88;
}

.rel-tools-btn[aria-pressed="true"] {
    background: #00ff88;
    border-color: #00ff88;
    color: #030705;
}

.rel-tools-size {
    min-width: 56px;
    font-size: 1rem;
}

.rel-tools-hint {
    width: 100%;
    margin: 0.35rem 0 0;
    font-size: 0.75rem;
    color: #a3b8ad;
}

/* Versión compacta del panel en móvil */
@media (max-width: 767px) {
    .rel-tools {
        margin-bottom: 1rem;
    }

    .rel-tools-panel {
        gap: 0.5rem;
        padding: 0.7rem 0.8rem;
    }

    .rel-tools-group {
        border-right: none;
        padding-right: 0;
        width: 100%;
        justify-content: flex-start;
    }

    .rel-tools-toggle {
        font-size: 0.72rem;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .rel-tools {
        padding: 0 24px;
    }
}

/* Alto contraste: el panel se vuelve blanco y negro puro */
body.rel-high-contrast .rel-tools-toggle,
body.rel-high-contrast .rel-tools-btn {
    background: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}

body.rel-high-contrast .rel-tools-btn[aria-pressed="true"] {
    background: #fff !important;
    color: #000 !important;
}

body.rel-high-contrast .rel-tools-panel {
    background: #000 !important;
    border-color: #fff !important;
}

/* Movimiento reducido: sin transiciones en el panel */
@media (prefers-reduced-motion: reduce) {
    .rel-tools-toggle,
    .rel-tools-btn {
        transition: none !important;
    }
}