/* Slider CAPTCHA Styles */
.slider-captcha-container {
    margin-bottom: 1.5rem;
}

.captcha-track {
    position: relative;
    width: 100%;
    height: 50px;
    background-color: #F7F9FC; /* var(--color-surface) */
    border: 2px solid #E2E8F0;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    transition: border-color 0.2s;
}

.captcha-track:focus-visible {
    outline: 3px solid #7C3AED; /* var(--color-focus) */
    outline-offset: 2px;
}

.captcha-track.dragging {
    border-color: #0B5FFF; /* var(--color-primary) */
}

.captcha-track.success {
    border-color: #16A34A; /* var(--color-success) */
    background-color: #F0FDF4;
}

.captcha-track.error {
    border-color: #DC2626; /* var(--color-error) */
    background-color: #FEF2F2;
}

.captcha-track-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, rgba(11, 95, 255, 0.1) 0%, rgba(11, 95, 255, 0.2) 100%);
    transition: width 0.1s linear;
    pointer-events: none;
}

.captcha-track.success .captcha-track-fill {
    background: linear-gradient(90deg, rgba(22, 163, 74, 0.2) 0%, rgba(22, 163, 74, 0.3) 100%);
}

.captcha-slider {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background-color: #FFFFFF;
    border: 2px solid #0B5FFF; /* var(--color-primary) */
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s, transform 0.2s;
    z-index: 10;
    touch-action: none;
}

.captcha-slider:active,
.captcha-track.dragging .captcha-slider {
    cursor: grabbing;
    box-shadow: 0 4px 12px rgba(11, 95, 255, 0.3);
}

.captcha-track.success .captcha-slider {
    border-color: #16A34A;
    background-color: #16A34A;
}

.captcha-track.error .captcha-slider {
    border-color: #DC2626;
}

.captcha-icon {
    width: 20px;
    height: 20px;
    color: #0B5FFF; /* var(--color-primary) */
}

.captcha-track.success .captcha-icon {
    color: #FFFFFF;
}

.captcha-instruction {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    font-weight: 500;
    color: #64748B; /* var(--color-muted) */
    pointer-events: none;
    white-space: nowrap;
}

.captcha-track.dragging .captcha-instruction,
.captcha-track.success .captcha-instruction {
    opacity: 0;
}

.captcha-error {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: #DC2626; /* var(--color-error) */
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .captcha-track {
        height: 54px; /* Увеличиваем для удобства на мобильных */
    }

    .captcha-slider {
        width: 52px;
        height: 52px;
    }

    .captcha-instruction {
        font-size: 13px;
    }
}

/* Hidden utility class for captcha errors */
.captcha-error.hidden {
    display: none;
}